Latest Update：2025/12/18 17:04:44

HIRATA Ryuichi

Researcher Name: HIRATA Ryuichi

Div (Section) name/title: Earth System Division（Office for Terrestrial Monitoring）／Senior Researcher

Research Subject: Model development and data analysis for monitoring carbon balance of various terrestrial ecosystems in Asia

Degree(s): Degree of Agriculture

Professional Qualification(s): Biology,Physics,Agricultural Science

Environmental Speciality Field: Ecosystem Ecology,Environmental Biophysics,Biometeorology

Brief Description of Research: Evaluation of the effects of artificial and natural disturbances caused by plantation, forest management, and typhoon on the carbon balance of terrestrial ecosystems in Hokkaido.

Evaluation of the effects of disturbances caused by plantation, wildfire, and social development on the carbon balance of terrestrial ecosystems in Borneo island especially targeting tropical peatlands.

Integrative study based on ecosystem models, ground observation data, and GIS/remotesensing data for the continental-scale estimations of the terrestrial carbon balance.

Membership of Academic Society: Ecological Society of Japan,The Society of Agricultural Meteorology of Japan

Research Subject

Fiscal Year: 2025
- 27188 : Climate Change and Air Quality Research Program
- 27203 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
- 27204 : Quantitative evaluation of anthropogenic sources of SLCFs and greenhouse gases at region, country and city　scale
- 27244 : Earth System Domain: Foresight and Advanced Basic Research
- 27253 : Satellite Observation Project
Fiscal Year: 2024
- 26799 : Climate Change and Air Quality Research Program
- 26815 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
- 26816 : Quantitative evaluation of anthropogenic sources of SLCFs and greenhouse gases at region, country and city　scale
- 26859 : Earth System Domain: Foresight and Advanced Basic Research
- 26874 : Satellite Observation Project
Fiscal Year: 2023
- 26400 : Climate Change and Air Quality Research Program
- 26409 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
- 26410 : Quantitative evaluation of anthropogenic sources of SLCFs and greenhouse gases at region, country and city　scale
- 26450 : Earth System Domain: Foresight and Advanced Basic Research
- 26459 : Satellite Observation Project
- 26587 : Terrestrial Monitoring
- 26593 : Long-term, wide-area observations of the effects of climate change-induced ecosystem disturbances on forest carbon sequestration and development of a risk map
- 26746 : The effect of conversion to oil palm plantation of tropical peat on ecosystem function and air condition
Fiscal Year: 2022
- 25964 : Climate Change and Air Quality Research Program
- 25965 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
- 25966 : Quantitative evaluation of anthropogenic sources of SLCFs and greenhouse gases at region, country and city　scale
- 26006 : Earth System Domain: Foresight and Advanced Basic Research
- 26023 : Satellite Observation Project
- 26355 : The effect of conversion to oil palm plantation of tropical peat on ecosystem function and air condition
- 26358 : Terrestrial Monitoring
Fiscal Year: 2021
- 25498 : Climate Change and Air Quality Research Program
- 25506 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
- 25507 : Quantitative evaluation of anthropogenic sources of SLCFs and greenhouse gases at region, country and city　scale
- 25556 : Satellite Observation Project
- 25655 : Earth System Domain: Foresight and Advanced Basic Research
- 25824 : Terrestrial Monitoring
- 25885 : The effect of conversion to oil palm plantation of tropical peat on ecosystem function and air condition
Fiscal Year: 2020
- 25113 : Long-term Monitoring and Database for Global Environmental Research and Supporting for Related Activities
- 25122 : Satellite Observation Research Project
- 25128 : Study on Multi-scale Evaluation System for GHG Variation and Mitigation
- 25281 : Improvement of greenhouse gas emission estimate using GOSAT series
- 25321 : Terrestrial Monitoring
- 25432 : Research into Observation, Monitoring and Detection of Climate Change and Resultant Impacts
- 25451 : The effect of conversion to oil palm plantation of tropical peat on ecosystem function and air condition
Fiscal Year: 2019
- 24708 : Study on Multi-scale Evaluation System for GHG Variation and Mitigation
- 24745 : Long-term Monitoring and Database for Global Environmental Research and Supporting for Related Activities
- 24772 : Development of a monitoring and evaluation system of the methane bdget for different source categories in East Asia toward intended emission reduction
- 24888 : Terrestrial Monitoring
- 24889 : Comprehensive evaluation of CH4 and N2O release from oil palm plantation
- 25000 : Improvement of greenhouse gas emission estimate using GOSAT series
- 25056 : Research into Observation, Monitoring and Detection of Climate Change and Resultant Impacts
Fiscal Year: 2018
- 24291 : Study on multi-scale evaluation system for GHG variation and mitigation
- 24315 : Long-term monitoring and database for global environmental research and supporting for related activities
- 24473 : Development of a Monitoring and Evaluation System of the Methane Budget for Different Source Categories in East Asia toward Intended Emission Reduction
- 24548 : Terrestrial Monitoring
- 24550 : Comprehensive evaluation of CH4 and N2O release from oil palm plantation
Fiscal Year: 2017
- 23837 : Study on multi-scale evaluation system for GHG variation and mitigation
- 23923 : Development of a Monitoring and Evaluation System of the Methane Budget for Different Source Categories in East Asia toward Intended Emission Reduction
- 24062 : Terrestrial Monitoring
- 24135 : Development of the regional-scale assessment system of carbon dynamics in Bornean peat ecosystems
- 24136 : Comprehensive evaluation of CH4 and N2O release from oil palm plantation
Fiscal Year: 2016
- 23399 : Study on multi-scale evaluation system for GHG variation and mitigation
- 23588 : Development of the regional-scale assessment system of carbon dynamics in Bornean peat ecosystems
- 23664 : Terrestrial Monitoring
- 23678 : Integrated observation and analysis system for early detection of carbon cycle change globally and in Asia-Pacific region
Fiscal Year: 2015
- 22992 : Study on characteristics of GHG in the atmosphere and outlook of their future concentration
- 23224 : Integrated observation and analysis system for early detection of carbon cycle change globally and in Asia-Pacific region
- 23249 : Terrestrial Monitoring
- 23252 : Development of the regional-scale assessment system of carbon dynamics in Bornean peat ecosystems
- 23270 : Evaluation of Soil CO2 Efflux of Asian Forest Ecosystems based on an Automated Chamber Network
Fiscal Year: 2014
- 22580 : Study on characteristics of GHG in the atmosphere and outlook of their future concentration
- 22638 : Terrestrial Monitoring
Fiscal Year: 2013
- 22164 : Study on characteristics of GHG in the atmosphere and outlook of their future concentration
- 22390 : Development of advanced evaluation method for terrestrial CO2 budget by improving nitrogen-cycle processes
- 22391 : Terrestrial Monitoring
Fiscal Year: 2012
- 21735 : Study on characteristics of GHG in the atmosphere and outlook of their future concentration
- 21922 : Terrestrial Monitoring
- 22138 : Development of GHG observation by GOSAT and its data analysis

View all

Research Result (Publication)

all
Original Paper
Book

Original Paper
Carbon dioxide dynamics across three stages of tropical peatland conversion to oil palm plantations

Presenter : Kiew F., Hirata R., Hirano T., Wong G.X., Waili J.W., Lo K.S., Soosaar K., Mander Ü., Lulie M.
Title : , Agricultural and Forest Meteorology, 378:110956 (2026)
Original Paper
Impact of Land Use Change and Drought on the Net Emissions of Carbon Dioxide and Methane From Tropical Peatlands in Southeast Asia

Presenter : Hirano T., Shiraishi T., Hirata R., Hayashi M., Deshmukh C.S., Melling L., Amit B., Ito M., Kato T., Kiew F., Kurnianto S., Kushin K., Nardi N., Nurholis N., Nyawai T.N., Sakabe A., Susanto A.P., Waili J.W., Wong G.X.
Title : , AGU advances, 6(6):e2025AV001861 (2025)
Original Paper
Impact of land conversion on environmental conditions and methane emissions from a tropical peatland

Presenter : Wong G.X., Hirata R., Hirano T., Kiew F., Waili JW., Mander U., Soosaar K., Melling L.
Title : , Science of The Total Environment, 962(25):178466 (2025)
Original Paper
Future projections of Siberian wildfire and aerosol emissions

Presenter : Nurrohman R.K., Kato T., Ninomiya H., Vegh L., Delbart N., Miyauchi T., Sato H., Shiraishi T., Hirata R.
Title : , Biogeosciences, 21(18):4195-4227 (2024)
Original Paper
Dissolved N2O concentrations in oil palm plantation drainage in a peat swamp of Malaysia Author links open overlay panel

Presenter : Nishina K., Melling L., Toyoda S., Itoh M., Terajima K., Waili J.W.B., Wong G.X., Kiew F., Aeries E.B., Hirata R., Takahashi Y., Onodera T.
Title : , Science of The Total Environment, 872:162062 (2023)
Original Paper
Carbon dioxide emissions through land use change, fire, and oxidative peat decomposition in Borneo

Presenter : Shiraishi T., Hirata R., Hayashi M., Hirano T.
Title : , Scientific Reports volume, 13(13067): (2023)
Original Paper
Sensitivity of biomass burning emissions estimates to land surface information

Presenter : Saito M., Shiraishi T., Hirata R., Niwa Y., Saito K., Steinbacher M., Worthy D., Matsunaga T.
Title : , Biogeosciences, 19(7):2059-2078 (2022)
Original Paper
New Inventories of Global Carbon Dioxide Emissions through Biomass Burning in 2001-2020

Presenter : Shiraishi T., Hirata R., Hirano T.
Title : , Remote Sensing, 13(10):1914 (2021)
Original Paper
Estimation of carbon dioxide emissions from the megafires of Australia in 2019–2020

Presenter : Shiraishi T., Hirata R.
Title : , Scientific Reports , 11:8267 (2021)
Original Paper
How do land use practices affect methane emissions from tropical peat ecosystems?

Presenter : Wong G.X., Hirata R., Hirano T., Kiew F., Aeries E.B., Musin K.K., Waili J.W., Lo K.S., Melling L.
Title : , Agricultural and Forest Meteorology, 282-283:107869 (2020)
Original Paper
Historical and future anthropogenic warming effects on droughts, fires and fire emissions of CO2 and PM2:5 in equatorial Asia when 2015-like El Nino events occur

Presenter : Shiogama H., Hirata R., Hasegawa T., Fujimori S., Ishizaki N., Chatani S., Watanabe M., Mitchell D., Lo Y.T.E.
Title : , Earth System Dynamics, 11:435-445 (2020)
Original Paper
Environmental Controls of Diffusive and EbullitiveMethane Emissions at a Subdaily Time Scale inthe Littoral Zone of a Midlatitude Shallow Lake

Presenter : Taoka T., Iwata H., Hirata R., Takahashi Y., Miyabara Y., Itoh M.
Title : , Journal of Geophysical Research: Biogeosciences, 125:e2020JG005753 (2020)
Original Paper
Temporal and spatial variations in methane emissions from the littoral zone of a shallow mid-latitude lake with steady methane bubble emission areas

Presenter : Iwata H., Nakazawa K., Sato H., Itoh M., Miyabara Y., Hirata R., Takahashi Y., Tokida T., Endo R.
Title : , Agricultural and Forest Meteorology, 295:108184 (2020)
Original Paper
Carbon dioxide balance of an oil palm plantation established on tropical peat

Presenter : Kiew F., Hirata R., Hirata T., Wong G.X., Aries E.B., Kemudang K., Wenceslaus J., San L.K., Melling L.
Title : , Agricultural and Forest Meteorology, 295:108189 (2020)
Original Paper
A Bornean peat swamp forest is a net source of carbon dioxide to the atmosphere

Presenter : Tang A.C.I., Melling L., Stoy P.C., Musin K.K., Aeies E.B., Waili J.W., Shimizu M., Poulter B., Hirata R.
Title : , Global Change Biology, 26:6931-6944 (2020)
Original Paper
Methane budget of East Asia, 1990-2015: A bottom-up evaluation

Presenter : Ito A., Tohjima Y., Saito T., Umezawa T., Hajima T., Hirata R., Saito M., Terao Y.
Title : , Science of the Total Environment, 676:40-52 (2019)
Original Paper
Uncertainty Analysis on Global Greenhouse Gas Inventories from Anthropogenic Sources

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S.
Title : , International Journal of Environmental Pollution and Remediation , 7:1-8 (2019)
Book
−

Presenter : Iizumi T., Hirata R., Matsuda R.
Title : , Adaptation to Climate Change in Agriculture (2019)
Original Paper
CO2 balance of a secondary tropical peat swamp forest in Sarawak, Malaysia

Presenter : Kiew F., Hirata R., Hirano T., Wong G.X., Aeries E.B., Musin K.K., Waili J.W., Lo K.S., Shimizu M., Melling L.
Title : , Agricultural and Forest Meteorology, 248(15):494-501 (2018)
Original Paper
Soil carbon dioxide emissions due to oxidative peat decomposition in an oil palm plantation on tropical peat

Presenter : Ishikura K., Hirano T., Okimoto Y., Hirata R., Kiew F., Melling L., Aeries E.B., Lo K.S., Musin K.K., Waili J.W., Wong G.X., Ishii Y.
Title : , Agriculture, Ecosystems and Environment, 254(15):202-212 (2018)
Original Paper
Micrometeorological measurement of methane flux above a tropical peat swamp forest

Presenter : Wong G.X., Hirata R., Hirano T., Kiew F., Aeries E.B., Musin K.K., Waili J.W., Lo K.S., Melling L.
Title : , Agricultural and Forest Meteorology, 256-257(15):353-361 (2018)
Original Paper
Partitioning Eddy-Covariance Methane Fluxes from a Shallow Lake into Diffusive and Ebullitive Fluxes

Presenter : Iwata H., Hirata R., Takahashi Y., Miyabara Y., Itoh M., Iizuka K.
Title : , Boundary-Layer Meteorology, 169(3):413-428 (2018)
Original Paper
Energy balance and evapotranspiration changes in a larch forestcaused by severe disturbance during an early secondary succession

Presenter : Hirano T., Suzuki K., Hirata R.
Title : , Agricultural and Forest Meteorology, 232:457-468 (2017)
Original Paper
Energy balance and evapotranspiration changes in a larch forest caused by severe disturbance during an early secondary succession

Presenter : Hirano T., Suzuki K., Hirata R.
Title : , Agricultural and Forest Meteorology, 232(15):457-468 (2017)
Book
Modeling of Carbon and GHG Budgets in Tropical Peatland

Presenter : Hirata R., Adachi M., Ito A.
Title : , Tropical Peatland Ecosystems (2016)
Original Paper
Spatial and seasonal variations of CO2 flux and photosynthetic and respiratory parameters of larch forests in East Asia

Presenter : Takagi K., Hirata R., Ide R., Ueyama M., Ichii K., Saigusa N., Hirano T., Asanuma J., Li S.G., Machimura T., Nakai Y., Ohta T., Takahashi Y.
Title : , Soil Science and Plant Nutrition, 61:61-75 (2015)
Original Paper
Characteristics of temporal variations in ecosystem CO2 exchange in a temperate deciduous needle-leaf forest in the foothills of a high mountain

Presenter : Takahashi Y., Saigusa N., Hirata R., Ide R., Fujinuma Y., Okano T., Arase T.
Title : , Journal of Agricultural Meteorology, 71(4):302-317 (2015)
Book
Chapter 7. Farmyard manure application mitigates greenhouse gas emissions from managed grasslands in Japan

Presenter : Shimizu M., Hatano R., Arita T., Kouda Y., Mori A., Matsuura S., Niimi M., Mano M., Hirata R., Jin T., Limin A., Saigusa T., Kawamura O., Hojito M., Miyata A.
Title : , Sustainable Agroecosystems in Climate Change Mitigation (2014)
Chapter33 Mitigation Effect of Farmyard Manure Application on Greenhouse Gas Emissions from Managed Grasslands in Japan

Presenter : Mariko S., Hatano R., Arita T., Kouda Y., Mori A., Matsuura S., Niimi M., Mano M., Hirata R., Jin T., Limin A., Saigusa T., Kawamura O., Hojito M., Miyata A.
Title : , Soil Carbon, 313-325 (2014)
Original Paper
The impact of climate variation and disturbances on the carbon balance of forests in Hokkaido, Japan

Presenter : Hirata R., Takagi K., Ito A., Hirano T., Saigusa N.
Title : , Biogeosciences, 11(18):5139-5154 (2014)
Original Paper
Is the empirical coefficient b for the relaxed eddy accumulation method constant?

Presenter : Sakabe A., Ueyama M., Kosugi Y., Hamotani K., Hirano T., Hirata R.
Title : , Journal of Atmospheric Chemistry, 71(1):79-94 (2014)
Original Paper
Site-level model-data synthesis of terrestrial carbon fluxes in the CarboEastAsia eddy-covariance observation network: toward future modeling efforts

Presenter : Ichii K., Kondo M., Lee Y-H., Wang S-Q., Kim J., Ito A., Hirano T., Hirata R., Saigusa N., Tang Y.
Title : , Journal of Forest Research, 18(1):13-20 (2013)
Original Paper
Dataset of CarboEastAsia and uncertainties in the CO2 budget evaluation caused by different data processing

Presenter : Saigusa N., Li S.-G. , Kwon H., Takagi K., Zhang L.-M., Ide R., Ueyama M., Asanuma J., Choi Y.-J., Chun J. H., Han S.-J. , Hirano T., Hirata R., Kang M., Kato T., Kim J., Li Y.-N., Maeda T., Miyata A., Mizoguchi Y., Murayama S., Nakai Y., Ohta T., Saitoh T. M., Wang H.-M., Yu G.-R., Zhang Y.-P., Zhao F.-H.
Title : , Journal of Forest Research, 18:41-48 (2013)
Original Paper
Evaluation and improvement of MODIS gross primary productivity in typical forest ecosystems of East Asia based on eddy covariance measurements

Presenter : He M. , Zhou Y., Ju W., Chen J., Zhang L., Wang S., Saigusa N., Hirata R., Murayama S., Liu Y.
Title : , Journal of Forest Research, 18:31-40 (2013)
Original Paper
Carbon dioxide exchange at four intensively managed grassland sites across different climate zones of Japan and the influence of manure application on ecosystem carbon and greenhouse gas budgets

Presenter : Hirata R., Miyata A., Mano M., Shimizu M., Arita T., Kouda Y., Matsuura S., Niimi M., Saigusa T., Mori A., Hojito M., Kawamura O., Hatano R.
Title : , Agricultural and Forest Meteorology, 177:57-68 (2013)
Original Paper
The role of carbon flux and biometric observations in constraining a terrestrial ecosystem model: a case study in disturbed forests in East Asia

Presenter : Kondo M., Ichii K., Ueyama M., Mizoguchi Y., Hirata R., Saigusa N.
Title : , Ecological Research, 28(5):893-905 (2013)
Original Paper
Influences of various calculation options on heat, water and carbon fluxes determined by open- and closed-path eddy covariance methods

Presenter : Ueyama M., Hirata R., Mano M., Hamotani K., Harazono Y., Hirano T., Miyata A., Takagi K., Takahashi Y.
Title : , Tellus B, 64(19048):1-26 (2012)
Original Paper
Variability in carbon stable isotope ratio of heterotrophic respiration in a deciduous needle-leaf forest

Presenter : Takahashi Y., Liang N., Hirata R., Machida T., Fujinuma Y.
Title : , J.Geophys.Res., 113:G01022 (2008)
Original Paper
Spatial distribution of carbon balance in forest ecosystems across East Asia

Presenter : Hirata R., Saigusa N., Yamamoto S., Ohtani Y., Ide R., Asanuma J., Gamo M., Hirano T., Kondo H., Kosugi Y.
Title : , Agric.For.Meteorol., 148:761-775 (2008)
Original Paper
Temporal and spatial variations in the seasonal patterns of CO2 flux in boreal, temperate, and tropical forests in East Asia

Presenter : Saigusa N., Yamamoto S., Hirata R., Ohtani Y., Ide R., Asanuma J., Gamo M., Hirano T., Kondo H., Kosugi Y.
Title : , Agric.For.Meteorol., 148:700-713 (2008)

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Carbon dioxide dynamics across three stages of tropical peatland conversion to oil palm plantations

Presenter : Kiew F., Hirata R., Hirano T., Wong G.X., Waili J.W., Lo K.S., Soosaar K., Mander Ü., Lulie M.
Title : , Agricultural and Forest Meteorology, 378:110956 (2026)
Impact of Land Use Change and Drought on the Net Emissions of Carbon Dioxide and Methane From Tropical Peatlands in Southeast Asia

Presenter : Hirano T., Shiraishi T., Hirata R., Hayashi M., Deshmukh C.S., Melling L., Amit B., Ito M., Kato T., Kiew F., Kurnianto S., Kushin K., Nardi N., Nurholis N., Nyawai T.N., Sakabe A., Susanto A.P., Waili J.W., Wong G.X.
Title : , AGU advances, 6(6):e2025AV001861 (2025)
Impact of land conversion on environmental conditions and methane emissions from a tropical peatland

Presenter : Wong G.X., Hirata R., Hirano T., Kiew F., Waili JW., Mander U., Soosaar K., Melling L.
Title : , Science of The Total Environment, 962(25):178466 (2025)
Future projections of Siberian wildfire and aerosol emissions

Presenter : Nurrohman R.K., Kato T., Ninomiya H., Vegh L., Delbart N., Miyauchi T., Sato H., Shiraishi T., Hirata R.
Title : , Biogeosciences, 21(18):4195-4227 (2024)
Dissolved N2O concentrations in oil palm plantation drainage in a peat swamp of Malaysia Author links open overlay panel

Presenter : Nishina K., Melling L., Toyoda S., Itoh M., Terajima K., Waili J.W.B., Wong G.X., Kiew F., Aeries E.B., Hirata R., Takahashi Y., Onodera T.
Title : , Science of The Total Environment, 872:162062 (2023)
Carbon dioxide emissions through land use change, fire, and oxidative peat decomposition in Borneo

Presenter : Shiraishi T., Hirata R., Hayashi M., Hirano T.
Title : , Scientific Reports volume, 13(13067): (2023)
Sensitivity of biomass burning emissions estimates to land surface information

Presenter : Saito M., Shiraishi T., Hirata R., Niwa Y., Saito K., Steinbacher M., Worthy D., Matsunaga T.
Title : , Biogeosciences, 19(7):2059-2078 (2022)
New Inventories of Global Carbon Dioxide Emissions through Biomass Burning in 2001-2020

Presenter : Shiraishi T., Hirata R., Hirano T.
Title : , Remote Sensing, 13(10):1914 (2021)
Estimation of carbon dioxide emissions from the megafires of Australia in 2019–2020

Presenter : Shiraishi T., Hirata R.
Title : , Scientific Reports , 11:8267 (2021)
How do land use practices affect methane emissions from tropical peat ecosystems?

Presenter : Wong G.X., Hirata R., Hirano T., Kiew F., Aeries E.B., Musin K.K., Waili J.W., Lo K.S., Melling L.
Title : , Agricultural and Forest Meteorology, 282-283:107869 (2020)
Historical and future anthropogenic warming effects on droughts, fires and fire emissions of CO2 and PM2:5 in equatorial Asia when 2015-like El Nino events occur

Presenter : Shiogama H., Hirata R., Hasegawa T., Fujimori S., Ishizaki N., Chatani S., Watanabe M., Mitchell D., Lo Y.T.E.
Title : , Earth System Dynamics, 11:435-445 (2020)
Environmental Controls of Diffusive and EbullitiveMethane Emissions at a Subdaily Time Scale inthe Littoral Zone of a Midlatitude Shallow Lake

Presenter : Taoka T., Iwata H., Hirata R., Takahashi Y., Miyabara Y., Itoh M.
Title : , Journal of Geophysical Research: Biogeosciences, 125:e2020JG005753 (2020)
Temporal and spatial variations in methane emissions from the littoral zone of a shallow mid-latitude lake with steady methane bubble emission areas

Presenter : Iwata H., Nakazawa K., Sato H., Itoh M., Miyabara Y., Hirata R., Takahashi Y., Tokida T., Endo R.
Title : , Agricultural and Forest Meteorology, 295:108184 (2020)
Carbon dioxide balance of an oil palm plantation established on tropical peat

Presenter : Kiew F., Hirata R., Hirata T., Wong G.X., Aries E.B., Kemudang K., Wenceslaus J., San L.K., Melling L.
Title : , Agricultural and Forest Meteorology, 295:108189 (2020)
A Bornean peat swamp forest is a net source of carbon dioxide to the atmosphere

Presenter : Tang A.C.I., Melling L., Stoy P.C., Musin K.K., Aeies E.B., Waili J.W., Shimizu M., Poulter B., Hirata R.
Title : , Global Change Biology, 26:6931-6944 (2020)
Methane budget of East Asia, 1990-2015: A bottom-up evaluation

Presenter : Ito A., Tohjima Y., Saito T., Umezawa T., Hajima T., Hirata R., Saito M., Terao Y.
Title : , Science of the Total Environment, 676:40-52 (2019)
Uncertainty Analysis on Global Greenhouse Gas Inventories from Anthropogenic Sources

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S.
Title : , International Journal of Environmental Pollution and Remediation , 7:1-8 (2019)
CO2 balance of a secondary tropical peat swamp forest in Sarawak, Malaysia

Presenter : Kiew F., Hirata R., Hirano T., Wong G.X., Aeries E.B., Musin K.K., Waili J.W., Lo K.S., Shimizu M., Melling L.
Title : , Agricultural and Forest Meteorology, 248(15):494-501 (2018)
Soil carbon dioxide emissions due to oxidative peat decomposition in an oil palm plantation on tropical peat

Presenter : Ishikura K., Hirano T., Okimoto Y., Hirata R., Kiew F., Melling L., Aeries E.B., Lo K.S., Musin K.K., Waili J.W., Wong G.X., Ishii Y.
Title : , Agriculture, Ecosystems and Environment, 254(15):202-212 (2018)
Micrometeorological measurement of methane flux above a tropical peat swamp forest

Presenter : Wong G.X., Hirata R., Hirano T., Kiew F., Aeries E.B., Musin K.K., Waili J.W., Lo K.S., Melling L.
Title : , Agricultural and Forest Meteorology, 256-257(15):353-361 (2018)
Partitioning Eddy-Covariance Methane Fluxes from a Shallow Lake into Diffusive and Ebullitive Fluxes

Presenter : Iwata H., Hirata R., Takahashi Y., Miyabara Y., Itoh M., Iizuka K.
Title : , Boundary-Layer Meteorology, 169(3):413-428 (2018)
Energy balance and evapotranspiration changes in a larch forestcaused by severe disturbance during an early secondary succession

Presenter : Hirano T., Suzuki K., Hirata R.
Title : , Agricultural and Forest Meteorology, 232:457-468 (2017)
Energy balance and evapotranspiration changes in a larch forest caused by severe disturbance during an early secondary succession

Presenter : Hirano T., Suzuki K., Hirata R.
Title : , Agricultural and Forest Meteorology, 232(15):457-468 (2017)
Spatial and seasonal variations of CO2 flux and photosynthetic and respiratory parameters of larch forests in East Asia

Presenter : Takagi K., Hirata R., Ide R., Ueyama M., Ichii K., Saigusa N., Hirano T., Asanuma J., Li S.G., Machimura T., Nakai Y., Ohta T., Takahashi Y.
Title : , Soil Science and Plant Nutrition, 61:61-75 (2015)
Characteristics of temporal variations in ecosystem CO2 exchange in a temperate deciduous needle-leaf forest in the foothills of a high mountain

Presenter : Takahashi Y., Saigusa N., Hirata R., Ide R., Fujinuma Y., Okano T., Arase T.
Title : , Journal of Agricultural Meteorology, 71(4):302-317 (2015)
The impact of climate variation and disturbances on the carbon balance of forests in Hokkaido, Japan

Presenter : Hirata R., Takagi K., Ito A., Hirano T., Saigusa N.
Title : , Biogeosciences, 11(18):5139-5154 (2014)
Is the empirical coefficient b for the relaxed eddy accumulation method constant?

Presenter : Sakabe A., Ueyama M., Kosugi Y., Hamotani K., Hirano T., Hirata R.
Title : , Journal of Atmospheric Chemistry, 71(1):79-94 (2014)
Site-level model-data synthesis of terrestrial carbon fluxes in the CarboEastAsia eddy-covariance observation network: toward future modeling efforts

Presenter : Ichii K., Kondo M., Lee Y-H., Wang S-Q., Kim J., Ito A., Hirano T., Hirata R., Saigusa N., Tang Y.
Title : , Journal of Forest Research, 18(1):13-20 (2013)
Dataset of CarboEastAsia and uncertainties in the CO2 budget evaluation caused by different data processing

Presenter : Saigusa N., Li S.-G. , Kwon H., Takagi K., Zhang L.-M., Ide R., Ueyama M., Asanuma J., Choi Y.-J., Chun J. H., Han S.-J. , Hirano T., Hirata R., Kang M., Kato T., Kim J., Li Y.-N., Maeda T., Miyata A., Mizoguchi Y., Murayama S., Nakai Y., Ohta T., Saitoh T. M., Wang H.-M., Yu G.-R., Zhang Y.-P., Zhao F.-H.
Title : , Journal of Forest Research, 18:41-48 (2013)
Evaluation and improvement of MODIS gross primary productivity in typical forest ecosystems of East Asia based on eddy covariance measurements

Presenter : He M. , Zhou Y., Ju W., Chen J., Zhang L., Wang S., Saigusa N., Hirata R., Murayama S., Liu Y.
Title : , Journal of Forest Research, 18:31-40 (2013)
Carbon dioxide exchange at four intensively managed grassland sites across different climate zones of Japan and the influence of manure application on ecosystem carbon and greenhouse gas budgets

Presenter : Hirata R., Miyata A., Mano M., Shimizu M., Arita T., Kouda Y., Matsuura S., Niimi M., Saigusa T., Mori A., Hojito M., Kawamura O., Hatano R.
Title : , Agricultural and Forest Meteorology, 177:57-68 (2013)
The role of carbon flux and biometric observations in constraining a terrestrial ecosystem model: a case study in disturbed forests in East Asia

Presenter : Kondo M., Ichii K., Ueyama M., Mizoguchi Y., Hirata R., Saigusa N.
Title : , Ecological Research, 28(5):893-905 (2013)
Influences of various calculation options on heat, water and carbon fluxes determined by open- and closed-path eddy covariance methods

Presenter : Ueyama M., Hirata R., Mano M., Hamotani K., Harazono Y., Hirano T., Miyata A., Takagi K., Takahashi Y.
Title : , Tellus B, 64(19048):1-26 (2012)
Variability in carbon stable isotope ratio of heterotrophic respiration in a deciduous needle-leaf forest

Presenter : Takahashi Y., Liang N., Hirata R., Machida T., Fujinuma Y.
Title : , J.Geophys.Res., 113:G01022 (2008)
Spatial distribution of carbon balance in forest ecosystems across East Asia

Presenter : Hirata R., Saigusa N., Yamamoto S., Ohtani Y., Ide R., Asanuma J., Gamo M., Hirano T., Kondo H., Kosugi Y.
Title : , Agric.For.Meteorol., 148:761-775 (2008)
Temporal and spatial variations in the seasonal patterns of CO2 flux in boreal, temperate, and tropical forests in East Asia

Presenter : Saigusa N., Yamamoto S., Hirata R., Ohtani Y., Ide R., Asanuma J., Gamo M., Hirano T., Kondo H., Kosugi Y.
Title : , Agric.For.Meteorol., 148:700-713 (2008)

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Presenter : Iizumi T., Hirata R., Matsuda R.
Title : , Adaptation to Climate Change in Agriculture (2019)
Modeling of Carbon and GHG Budgets in Tropical Peatland

Presenter : Hirata R., Adachi M., Ito A.
Title : , Tropical Peatland Ecosystems (2016)
Chapter 7. Farmyard manure application mitigates greenhouse gas emissions from managed grasslands in Japan

Presenter : Shimizu M., Hatano R., Arita T., Kouda Y., Mori A., Matsuura S., Niimi M., Mano M., Hirata R., Jin T., Limin A., Saigusa T., Kawamura O., Hojito M., Miyata A.
Title : , Sustainable Agroecosystems in Climate Change Mitigation (2014)

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Research Result (Presentation)

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Research Presentation
Research Lecture

Research Presentation
Changes in water quality and greenhouse gas emissions in a pond system for treatment of palm oil mill effluent (POME)

Presenter : Onodera T., Takahashi Y., Nishina K., Hirata R., Waili J.W. , Kiew F. , Wong G.X., Melling L.
Name of Society : 12th IWA International Symposium on Waste Management Problems in Agro-Industries- AGRO'2025 (2025)
Name of Proceedings : Abstracts
Research Presentation
Seven-year variability in methane release from a shallow eutrophic lake in Japan

Presenter : Yamada M., Iwata H., Park H.D., Sawano K., Hirata R., Takahashi Y.
Name of Society : AsiaFlux Conference 2023 (2023)
Name of Proceedings : Abstracts
Research Presentation
An approach to estimate forest NEP including ecosystem disturbances using long-term flux observation in Japan

Presenter : Kominami Y., Hirata A., Iwasaki K., Katsushima T., Kitamura K., Matsui T., Miyama T., Mizoguchi Y., Mrishita T., Shimizu T., Takanashi S., Yasuda Y., Yoshifuji N., Hirata R., Takahashi Y., Ishidoya S., Kamezaki K., Maeda T., Murayama S., Saito T.M.
Name of Society : AsiaFlux Conference 2023 (2023)
Name of Proceedings : Abstracts, 91
Research Presentation
Global CO2 and CH4 flux estimates based on GOSAT and GOSAT-2 satellite observations

Presenter : Saito M., Niwa Y., Takagi H., Hirata R., Kamei A., Miyauchi T., Morino I., Murakami K., Saeki T., Shiraishi T., Yashiro H., Yoshida Y., Maksyutov S., Matsunaga T.
Name of Society : iLEAPS–OzFlux Joint Conference 2023 (2023)
Name of Proceedings : -
Research Presentation
Observation activities for atmospheric greenhouse gases by CONTRAIL and other platforms by NIES and collaborators

Presenter : Machida T., Niwa Y., Umezawa T., Tsuboi K., Ishijima K., Fujita R., Matsueda H., Sasakawa M., Terao Y., Tohjima Y., Nara H., Saito T., Nakaoka S., Takao S., Aramaki T., Takahashi Y., Hirata R., Mueller A., Srivastava P., Morino I., Ohyama H., Frey M., Noda H., Mukai H., Shirai T., Tanimoto H.
Name of Society : WMO International Greenhouse Gas Monitoring Symposium (2023)
Name of Proceedings : -
Research Presentation
Field Observations of Greenhouse Gas Emissions from Palm Oil Mill Effluent (POME) Treatment Ponds in an Oil Palm Plantations on Tropical Peatlands

Presenter : Takahashi Y., Onodera T., Hirata R., Nishina K., Waili J.W., Aeries E.B., Kiew F., Wong G.X., Melling L.
Name of Society : AsiaFlux 2022 (2022)
Name of Proceedings : Book of Abstracts, 130
Research Presentation
Seasonal dynamics of dissolved N2O in the drainage ditch water & palm oil mill effluent of oil palm plantation in Sarawak

Presenter : Nishina K., Melling L., Toyoda S., Itoh M., Waili J., Wong G.X., Kiew F., Aeries E.B., Hirata R., Takahashi Y., Onodera T.
Name of Society : AsiaFlux 2022 (2022)
Name of Proceedings : Abstracts, 52-53
Research Presentation
Ground subsidence monitoring using ALOS-2/PALSAR-2 and Sentinel-1 imagery at a developed peatland in Borneo

Presenter : Hayashi M., Shiraishi T., Wong G.X., Kiew F., Waili J.W., Lo K.S., Hirata R., Hirano T., Abe T., Melling L.
Name of Society : AsiaFlux2022 conference (2022)
Name of Proceedings : Abstracts
Research Presentation
GOSAT-2 Observation in Southeastern Asia Over the Past Three Years: CO2, CH4, CO, and Aerosol

Presenter : Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Yashiro H., Someya Y., Saeki T., Niwa Y., Kamei A., Kawazoe F., Zeng J., Shiraishi T., Hirata R., Imasu R., Nakajima T., Nakajima T., Saitoh N., Hashimoto M.
Name of Society : International Workshop On Land Cover/Land Use Changes, Forestry, and Agriculture in South/Southeast Asia (2022)
Name of Proceedings : -
Research Presentation
GOSAT and GOSAT-2 Level4 global surface flux estimates

Presenter : Saito M., Niwa Y., Takagi H., Hirata R., Kamei A., Miyauchi T., Morino I., Murakami K., Saeki T., Shiraishi T., Yoshida Y., Maksyutov S., Matsunaga T.
Name of Society : the 18th International Workshop on Greenhouse Gas Measurements from Space (2022)
Name of Proceedings : -
Research Presentation
Estimation of carbon dioxde emissions through land use changes, fires, and peat decomposition using satellite remote sensing data in Borneo

Presenter : Shiraishi T., Hirata R., Hayashi M., Hirano T.
Name of Society : AsiaFlux conference 2002 (2022)
Name of Proceedings : Abstracts, 146
Research Presentation
Global carbon dioxide flux estimates based on GOSAT-2 observations

Presenter : Saito M., Niwa Y., Saeki T., Hirata R., Kamei A., Miyauchi T., Morino I., Murakami K., Shiraishi T., Yoshida Y., Matsunaga T.
Name of Society : AGU fall meeting 2022 (2022)
Name of Proceedings : -
Research Lecture
Changes in GHG fluxes by converting from disturbed secondary peat swamp forest to oil palm plantation

Presenter : Hirata R., Wong G.X., Kiew F, Takahashi Y., Onodera T., Nishina K., Aeries B.A., Musin K.K., Waili J.W., Lo K.S., Melling L.
Name of Society : AsiaFlux conference 2002 (2022)
Name of Proceedings : Abstracts, 126
Research Presentation
Impact of land use change on CH4 emission from a tropical peatland in Sarawak, Malaysia

Presenter : Wong G.X., Hirata R., Hirano T., Kiew F, Aeries B.A., Waili J.W., Lo K.S., Melling L
Name of Society : AsiaFlux conference 2002 (2022)
Name of Proceedings : Abstracts, 129
Research Presentation
Preliminaries for GOSAT-2 Level 4 Global Surface Fluxes

Presenter : Saito M., Niwa Y., Saeki T., Murakami K., Cong R., Miyauchi T., Yashiro H., Shiraishi T., Hirata R., Yoshida Y., Morino I., Noda H., Ohyama H., Kamei A., Matsunaga T.
Name of Society : JpGU - AGU Joint Meeting 2020 (2020)
Name of Proceedings : -
Research Presentation
Global Surface CO2 Flux estimates using GOSAT-2 observations

Presenter : Saito M., Niwa Y., Saeki T., Murakami K., Miyauchi T., Yashiro H., Shiraishi T., Hirata R., Yoshida Y., Morino I., Noda H., Ohyama H., Kamei A., Matsunaga T.
Name of Society : AGU Fall meeting (2020)
Research Presentation
Spatiotemporal Analysis on CO2 Emissions from Households in Japan

Presenter : Cong R., Saito M., Hirata R., Ito A.
Name of Society : Photogrammetric Image Analysis 2019 (2019)
Name of Proceedings : The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (ISPRS Archives), XLII-2/W16:75-81
Research Presentation
Estimation of global CO2 emissions caused by biomass burning using satellite data

Presenter : Shiraishi T., Hirata R.
Name of Society : Land Use/Cover Changes, Environment and Emissions in South/Southeast Asia – An International Regional Science Meeting (2019)
Name of Proceedings : -
Research Presentation
Towards Decreasing the Uncertainty in Global Carbon Dioxide Emission Inventory

Presenter : Cong R., Saito M., Hirata R., Ito A.
Name of Society : JpGU Meeting 2019 (2019)
Name of Proceedings : Abstracts
Research Presentation
A global carbon cycle model system for the GOSAT-2 project

Presenter : Saito M., Niwa Y., Goto D., Saeki T., Murakami K., Cong R., Miyauchi T., Shiraishi T., Hirata R., Yoshida Y., Matsunaga T.
Name of Society : AsiaFlux2019 (2019)
Name of Proceedings : Abstracts, 166
Research Lecture
Look back the history of tower flux observation in Asia

Presenter : Hirata R.
Name of Society : AsiaFlux2019-20th Anniversary Workshop- (2019)
Name of Proceedings : Proceedings, 30
Research Presentation
Net ecosystem exchange of CO2 from two land uses on tropical peatlands in Sarawak, Malaysia

Presenter : Kiew F., Hirata R., Hirano T., Wong G.X., Aries E.B., Musin K.K., Waili J.W., Lo K.S., Melling L.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceeding, 51
Research Presentation
The controlling factors of diffusive and ebullitive methane emission on sub daily time scale at a mid latitude shallow lake

Presenter : Taoka T., Iwata H., Miyabara Y., Hirata R., Takahashi Y.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 81
Research Presentation
How to register your observation data to European Flux Database?: Toward open data policy of JapanFlux data

Presenter : Yamanuki H., Ichii K., Liu Z., Taguchi T., Hirata R., Ide R., Ueyama M.
Name of Society : AsiaFlux2019 -20th Anniversary Workshop- (2019)
Name of Proceedings : Proceedings, 82
Research Presentation
Latent heat and sensible heat flux simulation in tropical peat swamp forest using artificial neural network

Presenter : Aeries E.B., Tang A.C.I., Wong G.X., Kiew F., Waili J.W., Musin K.K., Lo K.S., Hirata R., Melling L.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 107
Research Presentation
Field challenges of eddy covariance measurement in tropical peat ecosystems in Sarawak, Malaysia The TROPI experience

Presenter : Waili J.W., Aeries E.B., Wong G.X., Lo K.S., Hirata R., Melling L.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 111
Research Presentation
Biophysical controls on the variability of ecosystem scale CO2 exchange in a Bornean peat forest

Presenter : Tang A.C.I., Stoy P.C., Hirata R., Musin K.K., Aeries E.B., Waili J.W., Shimizu M., Poulter B., Melling L.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 114
Research Presentation
Simulation of methane dynamics in a mid latitude eutrophic lake with constraints using incubation data

Presenter : Iwata H., Nakano W., Stepanenko V., Kobayashi D., Taoka T., Miyabara Y., Hirata R., Takahashi Y.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 133
Research Presentation
Net ecosystem CH4 exchange of three tropical peat ecosystems in Sarawak, Malaysia

Presenter : Wong G.X., Hirata R., Hirano T., Kiew F., Aeries E.B., Musin K.K., Waili J.W., Lo K.S., Melling L.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 113
Research Presentation
Evapotranspiration from three tropical peat ecosystems in Sarawak, Malaysia

Presenter : Musin K.K., Hirata R., Tang A.C.I., Wong G.X., Kiew F., Aeries E.B., Waili J.W., Lo K.S., Hirano T., Melling L.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 115
Research Presentation
Estimation of carbon dioxide emissions through tropical peatland subsidence using interferometric synthetic aperture radar analysis

Presenter : Shiraishi T., Hirata R., Hayashi M., Hirano T.
Name of Society : AsiaFlux2019 -20th Anniversary Workshop- (2019)
Name of Proceedings : Proceedings, 158
Research Presentation
Visualization Analysis on Uncertainties in the Global Greenhouse Gas Inventories

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S.
Name of Society : 2018 joint 14th iCACGP Quadrennial Symposium/15th IGAC Science Conference (2018)
Name of Proceedings : Abstracts
Research Presentation
Eddy covariance and biogeochemical observations of methane dynamics in a shallow mid-latitude lake in Japan

Presenter : Iwata H., Hirata R., Takahashi Y., Itoh M., Miyabara Y., Kobayashi D.
Name of Society : 15th AsiaFlux Workshop (OzFlux-AsiaFlux Joint Conference) (2018)
Name of Proceedings : Abstracts, 63-64
Research Presentation
Uncertainty Analysis on Global Greenhouse Gas Inventories from Anthropogenic Sources

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S.
Name of Society : 2nd International Conference of Recent Trends in Environmental Science and Engineering (2018)
Name of Proceedings : Proceedings of the 2nd International Conference of Recent Trends in Environmental Science and Engineering (RTESE, (141):1
Research Presentation
Urban Carbon Dioxide Emission Inventory Developed by Bottom-up Approach

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S., Oda T., Oda T.
Name of Society : JpGU2018 (2018)
Name of Proceedings : Abstracts
Research Presentation
Carbon emissions caused by land use change in Borneo island

Presenter : Hirata R., Habura B., Shiraishi T.
Name of Society : 日本地球惑星科学連合2018年大会 (2018)
Name of Proceedings : Abstracts
Research Presentation
Carbon dioxide exchange between the atmosphere and an oil palm plantation on tropical pea

Presenter : Kiew F., Hirata R., Hirano T., Wong G.X., Aeries E.B., Musin K.K., Waili J.W., Lo K.S., Melling L.
Name of Society : International Symposium on Agricultural Meteorology 2018 (2018)
Name of Proceedings : Proceedings of International Symposium on Agricultural Meteorology 2018, 231
Research Presentation
Comparison of methane flux measured by eddy covariance technique among three different tropical peat ecosystems

Presenter : Wong G.X., Hirata R., Hirano T., Kiew F., Aeries E.B., Musin K.K., Lo K.S., Melling L.
Name of Society : International Symposium o Agricultural Meteorology 2018 (2018)
Name of Proceedings : Proceedings of International Symposium on Agricultural Meteorology 2018, 245
Research Presentation
Preliminary Survey for Evaluation of N Cycling in Oil Palm Plantation on Peat Soil in Malaysia-Spatial Distribution of Dissolved Nitrous Oxide and Nitrate Concentrations in Drainage Water on a Plantation Scale-

Presenter : Nishina K., Hirata R., Takahashi Y., Onodera T., Melling L., Musin K., Waili J., Ratai J., Abdullah M., Merikan C., Toyoda S., Terajima K.
Name of Society : AGU Fall Meeting (2018)
Name of Proceedings : Abstract
Research Presentation
Visualization on fossil-fuel carbon dioxide (CO2) emissions from buildings in Tokyo metropolis

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S.
Name of Society : Geo Delft 2018 (2018)
Name of Proceedings : ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV(4):21-25
Research Presentation
Exploration on quantifying carbon dioxide (CO2) emission from road traffic in megacity

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S.
Name of Society : Geo delft 2018 (2018)
Name of Proceedings : Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., LXII(4):115-119
Research Lecture
Evaluation of greenhouse gas fluxes of tropical peat lands in Borneo island

Presenter : Hirata R.
Name of Society : 3rd International Forum on Sustainable Future in Asia (2018)
Name of Proceedings : Abstracts
Research Presentation
The comparison analysis for various global Greenhouse emissions inventories datasets

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts, 26
Research Presentation
Evapotranspiration from tropical peat swamp forest of Sarawak, Malaysia

Presenter : Musin K.K., Hirata R., Waili J.W., Aeries E.B., Wong G.X., Melling L.
Name of Society : Joint Conference of AsiaFlux Workshop 2017 and the 15th Anniversary Celebration of ChinaFLUX (2017)
Name of Proceedings : Abstracts, 30
Research Presentation
Evaluation of methane emission from a mid-latitude lake with the eddy covariance technique

Presenter : Ikawa H., Hirata R., Takahashi Y., Itoh M., Iizuka K., Miyabara Y., Nakazawa K., Satoh H., Kobayashi D., Tokida T.
Name of Society : Joint Conference of AsiaFlux Workshop 2017 and the 15th Anniversary Celebration of ChinaFLUX (2017)
Name of Proceedings : Abstracts, 5
Research Presentation
The effects of forest loss on reginal carbon balance of tropical peat forests in Borneo island

Presenter : Hirata R., Pingchun, Ito A.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts, 311
Research Presentation
Toward advanced inventory of regional and urban greenhouse gas emissions for carbon accounting

Presenter : Ito A., Saito M., Hirata R., Senda M., Koide D., Nakagawa Y.
Name of Society : JpGU–AGU Joint Meeting 2017 (2017)
Name of Proceedings : Abstracts
Research Presentation
Carbon Dioxide Dynamic in Secondary Tropical Peat Swamp Forest in Sarawak, Malaysia

Presenter : Kiew F., Hirata R., Hirano T., Xhuan W.G., Aries E.B., Kemudang K., Wenceslaus J., San L.K., Melling L.
Name of Society : International Symposium on Agricultural Meteorology 2017 (2017)
Name of Proceedings : Abstracts, 186
Research Presentation
Micrometeorological Measurement of Methane Flux above a Tropical Peat Swamp Forest

Presenter : Xhuan W.G., Hirata R., Hirano T., Aries E.B., Kemudang K., Wenceslaus J., Kiew F., Melling L.
Name of Society : International Symposium on Agricultural Meteorology 2017 (2017)
Name of Proceedings : Abstracts, 187
Research Presentation
Eddy covariance measurement of methane flux above a primary tropical peat swamp forest in Sarawak, Malaysia

Presenter : Xhuan W.G., Hirata R., Hirano T., Aeries E.B., Musin K.K., Waili J.W., Kiew F., Melling L.
Name of Society : 15th International PEAT Congress 2016 (2016)
Name of Proceedings : Abstracts, 31
Research Presentation
Carbon dioxide emissions from ground surface of oil palm plantation in Sarawak, Malaysia

Presenter : Okimoto Y., Hirano T., Hirata R., Melling L., Ishii Y., Kiew F., Xhuan W.G.
Name of Society : 15th International PEAT Congress 2016 (2016)
Name of Proceedings : Abstracts, 194
Research Presentation
Carbon dioxide balance of a secondary tropical peat swamp forest in Sarawak, Malaysia

Presenter : Kiew F., Hirata R., Hirano T., Xhuan W.G., Aries E.B., Kemudang K., Wenceslaus J., Melling L.
Name of Society : 15th International PEAT Congress 2016 (2016)
Name of Proceedings : Abstracts, 402
Research Presentation
Continuous measurements of soil CO2 and CH4 fluxes in two tropical peatforests with high and low ground water level in Sarawak, Malaysia, by using an automated murthi-chamber systems

Presenter : Hirata R., Okimoto Y., Hirano T., Kiew F., Melling L.
Name of Society : 15th International PEAT Congress 2016 (2016)
Name of Proceedings : Abstracts, 404
Research Presentation
Vulnerability of CO2 exchange in tropical peat ecosystems: A case study from Sarawak, Malaysian Borneo

Presenter : Tang A.C.I., Stoy P.C., Musin K.K., Wenceslaus J., Hirata R., Melling L.
Name of Society : 15th International PEAT Congress 2016 (2016)
Name of Proceedings : Abstracts, 46
Research Presentation
Spatial and temporal variations in carbon balances of forest ecosystems in Hokkaido, Japan

Presenter : Hirata R., Ito A., Saigusa N.
Name of Society : 32nd Conf. on Agricultural and Forest Meteorology/22nd Symp. Boundary Layers and Turbulence/ Third Conf. on Atmospheric Biogeosciences (2016)
Name of Proceedings : -
Research Presentation
The Role of Hydrology in Controlling the Inter-annual Variability of Net Ecosystem Carbon Exchange in a Tropical Peat Forest in Sarawak, Malaysian Borneo

Presenter : Tang A. C.-I., Stoy P., Musin K.K., Aeries E.B, Wenceslaus J., Hirata R., Melling L.
Name of Society : 32nd Conf. on Agricultural and Forest Meteorology/22nd Symp. Boundary Layers and Turbulence/ Third Conf. on Atmospheric Biogeosciences (2016)
Name of Proceedings : -
Research Presentation
Initial results of observations of soil CO2 and CH4 fluxes in three ecosystem types of tropical peatland in Sarawak, Malaysia

Presenter : Hirata R., Okimoto Y., Hirano T., Frankie K., Lulie M.
Name of Society : 日本地球惑星科学連合2016年大会 (2016)
Name of Proceedings : -, ACG22-P06
Research Presentation
Advancement of regional-scale emission mapping of greenhouse gases using anthropogenic emission inventories and process-based model

Presenter : Ito A., Saito M., Hirata R., Senda M.
Name of Society : American Geophysical Union 2016 Fall Meeting (2016)
Name of Proceedings : Abstracts
Research Presentation
Carbon emissions caused by land-use change in tropical forests of Borneo island

Presenter : Hirata R., Ito A.
Name of Society : American Geophysical Union 2016 Fall Meeting (2016)
Name of Proceedings : Abstracts
Research Lecture
Developing an integrated system to evaluate the carbon dynamics of tropical peat ecosystems in Borneo

Presenter : Hirata R.
Name of Society : 5th Annual Meeting Low Carbon Asia Research Network (LoCARNet) (2016)
Name of Proceedings : -
Research Presentation
Improvement of the soil submodel of the process-based terrestrial ecosystem model to apply tropical swamp forests

Presenter : Hirata R., Ito A., Hirano T., Saigusa N.
Name of Society : Joint conference of the AsiaFlux Workshop 2015 and ISPRS (International Society for Photogrammetry and Remote Sensing) TC WG VIII/3: Weather, Atmosphere and Climate Studies Weather, Atmosphere and Climate Studies on Challenges and Significance of Ecosystem Research in Asia to Better Understand Climate Change (2015)
Name of Proceedings : Abstracts, 26
Research Presentation
Semi-empirical GPP estimation of east Asian forests using MODIS vegetation indices

Presenter : Takagi K., Ueyama M., Ide R., Ichii K., Ono K., Hirata R., Saigusa N., Hirano T., Kwon H., Hong J., Zhang L.-M., Li S.-G., Wang H.-M., Han S., Zhang Y.-P, Asanuma J., Gamo M., Maeda T., Murayama S., Machimura T., Nakai Y., Ohta T., Saitoh T.M., Takahashi Y.
Name of Society : Joint conference of the AsiaFlux Workshop 2015 and ISPRS (International Society for Photogrammetry and Remote Sensing) TC WG VIII/3: Weather, Atmosphere and Climate Studies Weather, Atmosphere and Climate Studies on Challenges and Significance of Ecosystem Research in Asia to Better Understand Climate Change (2015)
Name of Proceedings : Abstracts, 52
Research Presentation
Long-term monitoring of CO2 exchange over a larch forest in central Japan

Presenter : Takahashi Y., Saigusa N., Ide R., Hirata R.
Name of Society : Joint conference of the AsiaFlux Workshop 2015 and ISPRS (International Society for Photogrammetry and Remote Sensing) TC WG VIII/3: Weather, Atmosphere and Climate Studies Weather, Atmosphere and Climate Studies on Challenges and Significance of Ecosystem Research in Asia to Better Understand Climate Change (2015)
Name of Proceedings : Abstracts, 99
Research Presentation
Quantifying the magnitude and environmental influences on methane flux from a tropical peat swamp forest in Sarawak, Malaysia

Presenter : Xhuan W.G., Aeries E. B., Waili J.W., Hirata R., Melling L.
Name of Society : AsiaFlux Workshop 2014 on 'Bridging Atmosheric Flux Monitoring to National and International Climate Change Initiatives' (2014)
Name of Proceedings : Abstracts, 11
Research Presentation
The impacts of disturbance on terrestrial carbon budget of Hokkaido, Japan

Presenter : Hirata R., Ito A., Saigusa N.
Name of Society : AsiaFlux Workshop 2014 on 'Bridging Atmosheric Flux Monitoring to National and International Climate Change Initiatives' (2014)
Name of Proceedings : Abstracts, 24
Research Presentation
Carbon dioxide exchange of a secondary tropical peat swamp forest in Sarawak, Malaysia

Presenter : Kiew F., Hirano T., Hirata R., Aeries E.B., Musin K.K., Melling L.
Name of Society : AsiaFlux Workshop 2014 on 'Bridging Atmosheric Flux Monitoring to National and International Climate Change Initiatives' (2014)
Name of Proceedings : Abstracts, 51
Research Presentation
Relationship between ecosystem photosynthetic parameters derived from flux observation and modis vegetation indices of East Asian forests

Presenter : Takagi K., Ueyama M., Ide R., Ichii K., Ono K., Hirata R., Saigusa N., Hirano T., Kwon H., Hong J., Zhang L., Li S.G., Han S., Wang H-M., Zhang Y-P., Asanuma J., Gamo M., Maeda T., Murayama S., Machimura T., Nakai Y., Ohta T., Saitoh T.M., Takahashi Y.
Name of Society : AsiaFlux Workshop 2014 on 'Bridging Atmosheric Flux Monitoring to National and International Climate Change Initiatives' (2014)
Name of Proceedings : Abstracts, 59
Research Presentation
The impact of climate variation and disturbances on the carbon balance of forests in Hokkaido, Japan

Presenter : Hirata R., Takagi K., Ito A., Hirano T., Saigusa N.
Name of Society : 4th iLEAPS Science Conference (2014)
Name of Proceedings : -
Research Presentation
Integrating ground observation, satellite remote sensing, and terrestrial ecosystem model for future forest carbon monitoring systems

Presenter : Saigusa N., Hayashi M., Hirata R.
Name of Society : 6th EAFES International Congress (2014)
Name of Proceedings : Abstracts, 113-114
Research Presentation
The impacts of disturbance on the spatioal and temporal variations of carbon balance in forest ecosystems on Hokkaido, Japan

Presenter : Hirata R., Ito A., Saigusa N.
Name of Society : AGU Fall Meeting 2013 (2013)
Name of Proceedings : Abstracts
Research Presentation
Development of a Two-leaf Light Use Efficiency Model and Validated in Different Ecosystems of East Asia

Presenter : He M., Ju W., Zhou Y., He H., Guan D., Li Y., Saigusa N., Hao Y., Hirata R., Murayama S.
Name of Society : The 55th Symposium of the International Association for Vegetation Science (2012)
Name of Proceedings : Abstracts, 116
Research Presentation
Model Based Sensitivity Analysis of Terrestrial Carbon Fluxes in Ecosystems of East Asia

Presenter : Kondo M., Ichii K., Ueyama M., Hirata R., Kim J., Kwon H., Li S-G., Miyata A., Saigusa N., Yu G-R.
Name of Society : The 55th Symposium of the International Association for Vegetation Science (2012)
Name of Proceedings : Abstracts, 118
Research Presentation
Ecosystem Photosynthtic and Respiratory Parameters in Asian Forests

Presenter : Takagi K., Hirata R., Ueyama M., Ono K., Ichii K., Saigusa N., Ide R., Hirano T.
Name of Society : The 55th Symposium of the International Association for Vegetation Science (2012)
Name of Proceedings : Abstracts, 174
Research Presentation
Inter-site comparison of ecosystem physiological parameters of Asian forests

Presenter : Takagi K., Hirata R., Hirano T., Ueyama M., Ono K., Ide R., Ogawa A., Saigusa N., Takahashi Y., Ichii K., Kwon H., Hong J., Leiming Z., Li S.-G., Han S., Wang H.-M., Zhang Y.-P., Asanuma J., Gamo M., Maeda T., Murayama S., Machimura T., Nakai Y., Ohta T., Saitoh T.M.
Name of Society : The 5th EAFES International Congress (2012)
Name of Proceedings : -
Research Presentation
Simultaneous flux measurements of CO2, its stable isotope ratios and trace gases based on eddy accumulation technique for flux partitioning

Presenter : Takahashi Y., Hirata R.
Name of Society : AGU 2007 Fall Meet. (2007)
Name of Proceedings : Abstracts, B13B-1195
Research Presentation
Use of stable isotope and trace gases as additional tracers in flux partitioning

Presenter : Takahashi Y., Hirata R.
Name of Society : AsiaFlux Workshop 2007(Poster Session) (2007)
Name of Proceedings : Abstracts
Research Presentation
Cross-Site synthesis of annual and seasonal carbon budget estimated by micrometeorological and biometric approaches at different forest ecosystems in East Asia

Presenter : Hirata R.
Name of Society : AsiaFlux Workshop 2007(Poster Session) (2007)
Name of Proceedings : Abstracts
Research Presentation
Comparison of eddy CO2 fluxes measured with open-path and closed-path systems

Presenter : Hirata R., Hirano T.(*1), Saigusa N.(*2), Takagi K.(*1), Yone Y.(*3), Liang N., Fujinuma Y., Inukai K.
Name of Society : AsiaFlux Workshop 2005(Poster Session) (2006)
Name of Proceedings : Proceedings
Research Presentation
Comparison of eddy CO2 fluxes measured with open-path and closed-path systems based on a long-term measurement

Presenter : Hirata R., Hirano T.(*1), Saigusa N.(*2), Fujinuma Y., Inukai K., Kitamori Y.(*3)
Name of Society : 7th Int.Carbon Dioxide Conf. (2006)
Name of Proceedings : Abstracts
Research Presentation
Comparison of NEP estimated by micrometeorological, biometric and remote sensing methods in a larch forest in Hokkaido,Japan

Presenter : Hirata R., Hirano T.(*1), Saigusa N.(*2), Yone Y.(*3), Fukushi R.(*3), Nakaji T., Liang N., Oguma H., Inukai K., Fujinuma Y.
Name of Society : 2nd Sci.Congr.East Asian Fed.Ecol.Soc.Int.Congr. (2006)
Name of Proceedings : Program
Research Presentation
Effect of environmental factors on carbon dioxide exchange of forest ecosystems in East Asia

Presenter : Hirata R., Saigusa N.(*1), Yamamoto S.(*2), Ide R, Gamo M.(*1), Hirano T.(*3), Kosugi Y.(*4), Ohtani Y.(*5), Tani M.(*4), Fujinuma Y.
Name of Society : AsiaFlux Workshop 2006 (2006)
Name of Proceedings : Abstracts
Research Presentation
Seasonal and interennual variation in evapotranspiration and energy balance over a larch forest

Presenter : Inukai K., Hirata R., Hirano T.(*1), Fujinuma Y.
Name of Society : AsiaFlux Workshop 2006 (2006)
Name of Proceedings : Abstracts
Research Presentation
Variability in carbon stable isotope ratio of heterotrophic soil respiration in a deciduous needle-leaf forest

Presenter : Takahashi Y., Liang N., Hirata R., Machida T., Fujinuma Y.
Name of Society : AGU 2005 Fall Meet. (2005)
Name of Proceedings : Abstracts
Research Presentation
Estimating NEP by micrometeorological and biometric methods in a larch forest in Hokkaido,Japan

Presenter : Hirata R., Hirano T.(*1), Saigusa N.(*2), Takagi K.(*1), Yone Y.(*3), Liang N., Inukai K., Fujinuma Y.
Name of Society : AGU 2005 Fall Meet.(Poster Session) (2005)
Name of Proceedings : Abstracts(CD-ROM), B51C-0209

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An approach to estimate forest NEP including ecosystem disturbances using long-term flux observation in Japan

Presenter : Kominami Y., Hirata A., Iwasaki K., Katsushima T., Kitamura K., Matsui T., Miyama T., Mizoguchi Y., Mrishita T., Shimizu T., Takanashi S., Yasuda Y., Yoshifuji N., Hirata R., Takahashi Y., Ishidoya S., Kamezaki K., Maeda T., Murayama S., Saito T.M.
Name of Society : AsiaFlux Conference 2023 (2023)
Name of Proceedings : Abstracts, 91
Global CO2 and CH4 flux estimates based on GOSAT and GOSAT-2 satellite observations

Presenter : Saito M., Niwa Y., Takagi H., Hirata R., Kamei A., Miyauchi T., Morino I., Murakami K., Saeki T., Shiraishi T., Yashiro H., Yoshida Y., Maksyutov S., Matsunaga T.
Name of Society : iLEAPS–OzFlux Joint Conference 2023 (2023)
Name of Proceedings : -
Field Observations of Greenhouse Gas Emissions from Palm Oil Mill Effluent (POME) Treatment Ponds in an Oil Palm Plantations on Tropical Peatlands

Presenter : Takahashi Y., Onodera T., Hirata R., Nishina K., Waili J.W., Aeries E.B., Kiew F., Wong G.X., Melling L.
Name of Society : AsiaFlux 2022 (2022)
Name of Proceedings : Book of Abstracts, 130
Seasonal dynamics of dissolved N2O in the drainage ditch water & palm oil mill effluent of oil palm plantation in Sarawak

Presenter : Nishina K., Melling L., Toyoda S., Itoh M., Waili J., Wong G.X., Kiew F., Aeries E.B., Hirata R., Takahashi Y., Onodera T.
Name of Society : AsiaFlux 2022 (2022)
Name of Proceedings : Abstracts, 52-53
GOSAT-2 Observation in Southeastern Asia Over the Past Three Years: CO2, CH4, CO, and Aerosol

Presenter : Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Yashiro H., Someya Y., Saeki T., Niwa Y., Kamei A., Kawazoe F., Zeng J., Shiraishi T., Hirata R., Imasu R., Nakajima T., Nakajima T., Saitoh N., Hashimoto M.
Name of Society : International Workshop On Land Cover/Land Use Changes, Forestry, and Agriculture in South/Southeast Asia (2022)
Name of Proceedings : -
GOSAT and GOSAT-2 Level4 global surface flux estimates

Presenter : Saito M., Niwa Y., Takagi H., Hirata R., Kamei A., Miyauchi T., Morino I., Murakami K., Saeki T., Shiraishi T., Yoshida Y., Maksyutov S., Matsunaga T.
Name of Society : the 18th International Workshop on Greenhouse Gas Measurements from Space (2022)
Name of Proceedings : -
Global carbon dioxide flux estimates based on GOSAT-2 observations

Presenter : Saito M., Niwa Y., Saeki T., Hirata R., Kamei A., Miyauchi T., Morino I., Murakami K., Shiraishi T., Yoshida Y., Matsunaga T.
Name of Society : AGU fall meeting 2022 (2022)
Name of Proceedings : -
Impact of land use change on CH4 emission from a tropical peatland in Sarawak, Malaysia

Presenter : Wong G.X., Hirata R., Hirano T., Kiew F, Aeries B.A., Waili J.W., Lo K.S., Melling L
Name of Society : AsiaFlux conference 2002 (2022)
Name of Proceedings : Abstracts, 129
Estimation of global CO2 emissions caused by biomass burning using satellite data

Presenter : Shiraishi T., Hirata R.
Name of Society : Land Use/Cover Changes, Environment and Emissions in South/Southeast Asia – An International Regional Science Meeting (2019)
Name of Proceedings : -
Towards Decreasing the Uncertainty in Global Carbon Dioxide Emission Inventory

Presenter : Cong R., Saito M., Hirata R., Ito A.
Name of Society : JpGU Meeting 2019 (2019)
Name of Proceedings : Abstracts
Net ecosystem exchange of CO2 from two land uses on tropical peatlands in Sarawak, Malaysia

Presenter : Kiew F., Hirata R., Hirano T., Wong G.X., Aries E.B., Musin K.K., Waili J.W., Lo K.S., Melling L.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceeding, 51
Urban Carbon Dioxide Emission Inventory Developed by Bottom-up Approach

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S., Oda T., Oda T.
Name of Society : JpGU2018 (2018)
Name of Proceedings : Abstracts
Carbon dioxide exchange between the atmosphere and an oil palm plantation on tropical pea

Presenter : Kiew F., Hirata R., Hirano T., Wong G.X., Aeries E.B., Musin K.K., Waili J.W., Lo K.S., Melling L.
Name of Society : International Symposium on Agricultural Meteorology 2018 (2018)
Name of Proceedings : Proceedings of International Symposium on Agricultural Meteorology 2018, 231
Comparison of methane flux measured by eddy covariance technique among three different tropical peat ecosystems

Presenter : Wong G.X., Hirata R., Hirano T., Kiew F., Aeries E.B., Musin K.K., Lo K.S., Melling L.
Name of Society : International Symposium o Agricultural Meteorology 2018 (2018)
Name of Proceedings : Proceedings of International Symposium on Agricultural Meteorology 2018, 245
Visualization on fossil-fuel carbon dioxide (CO2) emissions from buildings in Tokyo metropolis

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S.
Name of Society : Geo Delft 2018 (2018)
Name of Proceedings : ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV(4):21-25
Evapotranspiration from tropical peat swamp forest of Sarawak, Malaysia

Presenter : Musin K.K., Hirata R., Waili J.W., Aeries E.B., Wong G.X., Melling L.
Name of Society : Joint Conference of AsiaFlux Workshop 2017 and the 15th Anniversary Celebration of ChinaFLUX (2017)
Name of Proceedings : Abstracts, 30
Evaluation of methane emission from a mid-latitude lake with the eddy covariance technique

Presenter : Ikawa H., Hirata R., Takahashi Y., Itoh M., Iizuka K., Miyabara Y., Nakazawa K., Satoh H., Kobayashi D., Tokida T.
Name of Society : Joint Conference of AsiaFlux Workshop 2017 and the 15th Anniversary Celebration of ChinaFLUX (2017)
Name of Proceedings : Abstracts, 5
Toward advanced inventory of regional and urban greenhouse gas emissions for carbon accounting

Presenter : Ito A., Saito M., Hirata R., Senda M., Koide D., Nakagawa Y.
Name of Society : JpGU–AGU Joint Meeting 2017 (2017)
Name of Proceedings : Abstracts
Eddy covariance measurement of methane flux above a primary tropical peat swamp forest in Sarawak, Malaysia

Presenter : Xhuan W.G., Hirata R., Hirano T., Aeries E.B., Musin K.K., Waili J.W., Kiew F., Melling L.
Name of Society : 15th International PEAT Congress 2016 (2016)
Name of Proceedings : Abstracts, 31
Carbon dioxide balance of a secondary tropical peat swamp forest in Sarawak, Malaysia

Presenter : Kiew F., Hirata R., Hirano T., Xhuan W.G., Aries E.B., Kemudang K., Wenceslaus J., Melling L.
Name of Society : 15th International PEAT Congress 2016 (2016)
Name of Proceedings : Abstracts, 402
Continuous measurements of soil CO2 and CH4 fluxes in two tropical peatforests with high and low ground water level in Sarawak, Malaysia, by using an automated murthi-chamber systems

Presenter : Hirata R., Okimoto Y., Hirano T., Kiew F., Melling L.
Name of Society : 15th International PEAT Congress 2016 (2016)
Name of Proceedings : Abstracts, 404
Vulnerability of CO2 exchange in tropical peat ecosystems: A case study from Sarawak, Malaysian Borneo

Presenter : Tang A.C.I., Stoy P.C., Musin K.K., Wenceslaus J., Hirata R., Melling L.
Name of Society : 15th International PEAT Congress 2016 (2016)
Name of Proceedings : Abstracts, 46
The Role of Hydrology in Controlling the Inter-annual Variability of Net Ecosystem Carbon Exchange in a Tropical Peat Forest in Sarawak, Malaysian Borneo

Presenter : Tang A. C.-I., Stoy P., Musin K.K., Aeries E.B, Wenceslaus J., Hirata R., Melling L.
Name of Society : 32nd Conf. on Agricultural and Forest Meteorology/22nd Symp. Boundary Layers and Turbulence/ Third Conf. on Atmospheric Biogeosciences (2016)
Name of Proceedings : -
Advancement of regional-scale emission mapping of greenhouse gases using anthropogenic emission inventories and process-based model

Presenter : Ito A., Saito M., Hirata R., Senda M.
Name of Society : American Geophysical Union 2016 Fall Meeting (2016)
Name of Proceedings : Abstracts
Improvement of the soil submodel of the process-based terrestrial ecosystem model to apply tropical swamp forests

Presenter : Hirata R., Ito A., Hirano T., Saigusa N.
Name of Society : Joint conference of the AsiaFlux Workshop 2015 and ISPRS (International Society for Photogrammetry and Remote Sensing) TC WG VIII/3: Weather, Atmosphere and Climate Studies Weather, Atmosphere and Climate Studies on Challenges and Significance of Ecosystem Research in Asia to Better Understand Climate Change (2015)
Name of Proceedings : Abstracts, 26
Semi-empirical GPP estimation of east Asian forests using MODIS vegetation indices

Presenter : Takagi K., Ueyama M., Ide R., Ichii K., Ono K., Hirata R., Saigusa N., Hirano T., Kwon H., Hong J., Zhang L.-M., Li S.-G., Wang H.-M., Han S., Zhang Y.-P, Asanuma J., Gamo M., Maeda T., Murayama S., Machimura T., Nakai Y., Ohta T., Saitoh T.M., Takahashi Y.
Name of Society : Joint conference of the AsiaFlux Workshop 2015 and ISPRS (International Society for Photogrammetry and Remote Sensing) TC WG VIII/3: Weather, Atmosphere and Climate Studies Weather, Atmosphere and Climate Studies on Challenges and Significance of Ecosystem Research in Asia to Better Understand Climate Change (2015)
Name of Proceedings : Abstracts, 52
Quantifying the magnitude and environmental influences on methane flux from a tropical peat swamp forest in Sarawak, Malaysia

Presenter : Xhuan W.G., Aeries E. B., Waili J.W., Hirata R., Melling L.
Name of Society : AsiaFlux Workshop 2014 on 'Bridging Atmosheric Flux Monitoring to National and International Climate Change Initiatives' (2014)
Name of Proceedings : Abstracts, 11
The impacts of disturbance on terrestrial carbon budget of Hokkaido, Japan

Presenter : Hirata R., Ito A., Saigusa N.
Name of Society : AsiaFlux Workshop 2014 on 'Bridging Atmosheric Flux Monitoring to National and International Climate Change Initiatives' (2014)
Name of Proceedings : Abstracts, 24
Integrating ground observation, satellite remote sensing, and terrestrial ecosystem model for future forest carbon monitoring systems

Presenter : Saigusa N., Hayashi M., Hirata R.
Name of Society : 6th EAFES International Congress (2014)
Name of Proceedings : Abstracts, 113-114
Development of a Two-leaf Light Use Efficiency Model and Validated in Different Ecosystems of East Asia

Presenter : He M., Ju W., Zhou Y., He H., Guan D., Li Y., Saigusa N., Hao Y., Hirata R., Murayama S.
Name of Society : The 55th Symposium of the International Association for Vegetation Science (2012)
Name of Proceedings : Abstracts, 116
Model Based Sensitivity Analysis of Terrestrial Carbon Fluxes in Ecosystems of East Asia

Presenter : Kondo M., Ichii K., Ueyama M., Hirata R., Kim J., Kwon H., Li S-G., Miyata A., Saigusa N., Yu G-R.
Name of Society : The 55th Symposium of the International Association for Vegetation Science (2012)
Name of Proceedings : Abstracts, 118
Ecosystem Photosynthtic and Respiratory Parameters in Asian Forests

Presenter : Takagi K., Hirata R., Ueyama M., Ono K., Ichii K., Saigusa N., Ide R., Hirano T.
Name of Society : The 55th Symposium of the International Association for Vegetation Science (2012)
Name of Proceedings : Abstracts, 174
Inter-site comparison of ecosystem physiological parameters of Asian forests

Presenter : Takagi K., Hirata R., Hirano T., Ueyama M., Ono K., Ide R., Ogawa A., Saigusa N., Takahashi Y., Ichii K., Kwon H., Hong J., Leiming Z., Li S.-G., Han S., Wang H.-M., Zhang Y.-P., Asanuma J., Gamo M., Maeda T., Murayama S., Machimura T., Nakai Y., Ohta T., Saitoh T.M.
Name of Society : The 5th EAFES International Congress (2012)
Name of Proceedings : -
Use of stable isotope and trace gases as additional tracers in flux partitioning

Presenter : Takahashi Y., Hirata R.
Name of Society : AsiaFlux Workshop 2007(Poster Session) (2007)
Name of Proceedings : Abstracts
Cross-Site synthesis of annual and seasonal carbon budget estimated by micrometeorological and biometric approaches at different forest ecosystems in East Asia

Presenter : Hirata R.
Name of Society : AsiaFlux Workshop 2007(Poster Session) (2007)
Name of Proceedings : Abstracts
Comparison of eddy CO2 fluxes measured with open-path and closed-path systems

Presenter : Hirata R., Hirano T.(*1), Saigusa N.(*2), Takagi K.(*1), Yone Y.(*3), Liang N., Fujinuma Y., Inukai K.
Name of Society : AsiaFlux Workshop 2005(Poster Session) (2006)
Name of Proceedings : Proceedings
Comparison of eddy CO2 fluxes measured with open-path and closed-path systems based on a long-term measurement

Presenter : Hirata R., Hirano T.(*1), Saigusa N.(*2), Fujinuma Y., Inukai K., Kitamori Y.(*3)
Name of Society : 7th Int.Carbon Dioxide Conf. (2006)
Name of Proceedings : Abstracts
Comparison of NEP estimated by micrometeorological, biometric and remote sensing methods in a larch forest in Hokkaido,Japan

Presenter : Hirata R., Hirano T.(*1), Saigusa N.(*2), Yone Y.(*3), Fukushi R.(*3), Nakaji T., Liang N., Oguma H., Inukai K., Fujinuma Y.
Name of Society : 2nd Sci.Congr.East Asian Fed.Ecol.Soc.Int.Congr. (2006)
Name of Proceedings : Program
Effect of environmental factors on carbon dioxide exchange of forest ecosystems in East Asia

Presenter : Hirata R., Saigusa N.(*1), Yamamoto S.(*2), Ide R, Gamo M.(*1), Hirano T.(*3), Kosugi Y.(*4), Ohtani Y.(*5), Tani M.(*4), Fujinuma Y.
Name of Society : AsiaFlux Workshop 2006 (2006)
Name of Proceedings : Abstracts
Seasonal and interennual variation in evapotranspiration and energy balance over a larch forest

Presenter : Inukai K., Hirata R., Hirano T.(*1), Fujinuma Y.
Name of Society : AsiaFlux Workshop 2006 (2006)
Name of Proceedings : Abstracts
Estimating NEP by micrometeorological and biometric methods in a larch forest in Hokkaido,Japan

Presenter : Hirata R., Hirano T.(*1), Saigusa N.(*2), Takagi K.(*1), Yone Y.(*3), Liang N., Inukai K., Fujinuma Y.
Name of Society : AGU 2005 Fall Meet.(Poster Session) (2005)
Name of Proceedings : Abstracts(CD-ROM), B51C-0209
Changes in water quality and greenhouse gas emissions in a pond system for treatment of palm oil mill effluent (POME)

Presenter : Onodera T., Takahashi Y., Nishina K., Hirata R., Waili J.W. , Kiew F. , Wong G.X., Melling L.
Name of Society : 12th IWA International Symposium on Waste Management Problems in Agro-Industries- AGRO'2025 (2025)
Name of Proceedings : Abstracts
Seven-year variability in methane release from a shallow eutrophic lake in Japan

Presenter : Yamada M., Iwata H., Park H.D., Sawano K., Hirata R., Takahashi Y.
Name of Society : AsiaFlux Conference 2023 (2023)
Name of Proceedings : Abstracts
Observation activities for atmospheric greenhouse gases by CONTRAIL and other platforms by NIES and collaborators

Presenter : Machida T., Niwa Y., Umezawa T., Tsuboi K., Ishijima K., Fujita R., Matsueda H., Sasakawa M., Terao Y., Tohjima Y., Nara H., Saito T., Nakaoka S., Takao S., Aramaki T., Takahashi Y., Hirata R., Mueller A., Srivastava P., Morino I., Ohyama H., Frey M., Noda H., Mukai H., Shirai T., Tanimoto H.
Name of Society : WMO International Greenhouse Gas Monitoring Symposium (2023)
Name of Proceedings : -
Ground subsidence monitoring using ALOS-2/PALSAR-2 and Sentinel-1 imagery at a developed peatland in Borneo

Presenter : Hayashi M., Shiraishi T., Wong G.X., Kiew F., Waili J.W., Lo K.S., Hirata R., Hirano T., Abe T., Melling L.
Name of Society : AsiaFlux2022 conference (2022)
Name of Proceedings : Abstracts
Estimation of carbon dioxde emissions through land use changes, fires, and peat decomposition using satellite remote sensing data in Borneo

Presenter : Shiraishi T., Hirata R., Hayashi M., Hirano T.
Name of Society : AsiaFlux conference 2002 (2022)
Name of Proceedings : Abstracts, 146
Preliminaries for GOSAT-2 Level 4 Global Surface Fluxes

Presenter : Saito M., Niwa Y., Saeki T., Murakami K., Cong R., Miyauchi T., Yashiro H., Shiraishi T., Hirata R., Yoshida Y., Morino I., Noda H., Ohyama H., Kamei A., Matsunaga T.
Name of Society : JpGU - AGU Joint Meeting 2020 (2020)
Name of Proceedings : -
Global Surface CO2 Flux estimates using GOSAT-2 observations

Presenter : Saito M., Niwa Y., Saeki T., Murakami K., Miyauchi T., Yashiro H., Shiraishi T., Hirata R., Yoshida Y., Morino I., Noda H., Ohyama H., Kamei A., Matsunaga T.
Name of Society : AGU Fall meeting (2020)
Spatiotemporal Analysis on CO2 Emissions from Households in Japan

Presenter : Cong R., Saito M., Hirata R., Ito A.
Name of Society : Photogrammetric Image Analysis 2019 (2019)
Name of Proceedings : The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (ISPRS Archives), XLII-2/W16:75-81
A global carbon cycle model system for the GOSAT-2 project

Presenter : Saito M., Niwa Y., Goto D., Saeki T., Murakami K., Cong R., Miyauchi T., Shiraishi T., Hirata R., Yoshida Y., Matsunaga T.
Name of Society : AsiaFlux2019 (2019)
Name of Proceedings : Abstracts, 166
The controlling factors of diffusive and ebullitive methane emission on sub daily time scale at a mid latitude shallow lake

Presenter : Taoka T., Iwata H., Miyabara Y., Hirata R., Takahashi Y.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 81
How to register your observation data to European Flux Database?: Toward open data policy of JapanFlux data

Presenter : Yamanuki H., Ichii K., Liu Z., Taguchi T., Hirata R., Ide R., Ueyama M.
Name of Society : AsiaFlux2019 -20th Anniversary Workshop- (2019)
Name of Proceedings : Proceedings, 82
Latent heat and sensible heat flux simulation in tropical peat swamp forest using artificial neural network

Presenter : Aeries E.B., Tang A.C.I., Wong G.X., Kiew F., Waili J.W., Musin K.K., Lo K.S., Hirata R., Melling L.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 107
Field challenges of eddy covariance measurement in tropical peat ecosystems in Sarawak, Malaysia The TROPI experience

Presenter : Waili J.W., Aeries E.B., Wong G.X., Lo K.S., Hirata R., Melling L.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 111
Biophysical controls on the variability of ecosystem scale CO2 exchange in a Bornean peat forest

Presenter : Tang A.C.I., Stoy P.C., Hirata R., Musin K.K., Aeries E.B., Waili J.W., Shimizu M., Poulter B., Melling L.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 114
Simulation of methane dynamics in a mid latitude eutrophic lake with constraints using incubation data

Presenter : Iwata H., Nakano W., Stepanenko V., Kobayashi D., Taoka T., Miyabara Y., Hirata R., Takahashi Y.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 133
Net ecosystem CH4 exchange of three tropical peat ecosystems in Sarawak, Malaysia

Presenter : Wong G.X., Hirata R., Hirano T., Kiew F., Aeries E.B., Musin K.K., Waili J.W., Lo K.S., Melling L.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 113
Evapotranspiration from three tropical peat ecosystems in Sarawak, Malaysia

Presenter : Musin K.K., Hirata R., Tang A.C.I., Wong G.X., Kiew F., Aeries E.B., Waili J.W., Lo K.S., Hirano T., Melling L.
Name of Society : AsiaFlux2019 20th Anniversary Workshop (2019)
Name of Proceedings : Proceedings, 115
Estimation of carbon dioxide emissions through tropical peatland subsidence using interferometric synthetic aperture radar analysis

Presenter : Shiraishi T., Hirata R., Hayashi M., Hirano T.
Name of Society : AsiaFlux2019 -20th Anniversary Workshop- (2019)
Name of Proceedings : Proceedings, 158
Visualization Analysis on Uncertainties in the Global Greenhouse Gas Inventories

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S.
Name of Society : 2018 joint 14th iCACGP Quadrennial Symposium/15th IGAC Science Conference (2018)
Name of Proceedings : Abstracts
Eddy covariance and biogeochemical observations of methane dynamics in a shallow mid-latitude lake in Japan

Presenter : Iwata H., Hirata R., Takahashi Y., Itoh M., Miyabara Y., Kobayashi D.
Name of Society : 15th AsiaFlux Workshop (OzFlux-AsiaFlux Joint Conference) (2018)
Name of Proceedings : Abstracts, 63-64
Uncertainty Analysis on Global Greenhouse Gas Inventories from Anthropogenic Sources

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S.
Name of Society : 2nd International Conference of Recent Trends in Environmental Science and Engineering (2018)
Name of Proceedings : Proceedings of the 2nd International Conference of Recent Trends in Environmental Science and Engineering (RTESE, (141):1
Carbon emissions caused by land use change in Borneo island

Presenter : Hirata R., Habura B., Shiraishi T.
Name of Society : 日本地球惑星科学連合2018年大会 (2018)
Name of Proceedings : Abstracts
Preliminary Survey for Evaluation of N Cycling in Oil Palm Plantation on Peat Soil in Malaysia-Spatial Distribution of Dissolved Nitrous Oxide and Nitrate Concentrations in Drainage Water on a Plantation Scale-

Presenter : Nishina K., Hirata R., Takahashi Y., Onodera T., Melling L., Musin K., Waili J., Ratai J., Abdullah M., Merikan C., Toyoda S., Terajima K.
Name of Society : AGU Fall Meeting (2018)
Name of Proceedings : Abstract
Exploration on quantifying carbon dioxide (CO2) emission from road traffic in megacity

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S.
Name of Society : Geo delft 2018 (2018)
Name of Proceedings : Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., LXII(4):115-119
The comparison analysis for various global Greenhouse emissions inventories datasets

Presenter : Cong R., Saito M., Hirata R., Ito A., Maksyutov S.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts, 26
The effects of forest loss on reginal carbon balance of tropical peat forests in Borneo island

Presenter : Hirata R., Pingchun, Ito A.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts, 311
Carbon Dioxide Dynamic in Secondary Tropical Peat Swamp Forest in Sarawak, Malaysia

Presenter : Kiew F., Hirata R., Hirano T., Xhuan W.G., Aries E.B., Kemudang K., Wenceslaus J., San L.K., Melling L.
Name of Society : International Symposium on Agricultural Meteorology 2017 (2017)
Name of Proceedings : Abstracts, 186
Micrometeorological Measurement of Methane Flux above a Tropical Peat Swamp Forest

Presenter : Xhuan W.G., Hirata R., Hirano T., Aries E.B., Kemudang K., Wenceslaus J., Kiew F., Melling L.
Name of Society : International Symposium on Agricultural Meteorology 2017 (2017)
Name of Proceedings : Abstracts, 187
Carbon dioxide emissions from ground surface of oil palm plantation in Sarawak, Malaysia

Presenter : Okimoto Y., Hirano T., Hirata R., Melling L., Ishii Y., Kiew F., Xhuan W.G.
Name of Society : 15th International PEAT Congress 2016 (2016)
Name of Proceedings : Abstracts, 194
Spatial and temporal variations in carbon balances of forest ecosystems in Hokkaido, Japan

Presenter : Hirata R., Ito A., Saigusa N.
Name of Society : 32nd Conf. on Agricultural and Forest Meteorology/22nd Symp. Boundary Layers and Turbulence/ Third Conf. on Atmospheric Biogeosciences (2016)
Name of Proceedings : -
Initial results of observations of soil CO2 and CH4 fluxes in three ecosystem types of tropical peatland in Sarawak, Malaysia

Presenter : Hirata R., Okimoto Y., Hirano T., Frankie K., Lulie M.
Name of Society : 日本地球惑星科学連合2016年大会 (2016)
Name of Proceedings : -, ACG22-P06
Carbon emissions caused by land-use change in tropical forests of Borneo island

Presenter : Hirata R., Ito A.
Name of Society : American Geophysical Union 2016 Fall Meeting (2016)
Name of Proceedings : Abstracts
Long-term monitoring of CO2 exchange over a larch forest in central Japan

Presenter : Takahashi Y., Saigusa N., Ide R., Hirata R.
Name of Society : Joint conference of the AsiaFlux Workshop 2015 and ISPRS (International Society for Photogrammetry and Remote Sensing) TC WG VIII/3: Weather, Atmosphere and Climate Studies Weather, Atmosphere and Climate Studies on Challenges and Significance of Ecosystem Research in Asia to Better Understand Climate Change (2015)
Name of Proceedings : Abstracts, 99
Carbon dioxide exchange of a secondary tropical peat swamp forest in Sarawak, Malaysia

Presenter : Kiew F., Hirano T., Hirata R., Aeries E.B., Musin K.K., Melling L.
Name of Society : AsiaFlux Workshop 2014 on 'Bridging Atmosheric Flux Monitoring to National and International Climate Change Initiatives' (2014)
Name of Proceedings : Abstracts, 51
Relationship between ecosystem photosynthetic parameters derived from flux observation and modis vegetation indices of East Asian forests

Presenter : Takagi K., Ueyama M., Ide R., Ichii K., Ono K., Hirata R., Saigusa N., Hirano T., Kwon H., Hong J., Zhang L., Li S.G., Han S., Wang H-M., Zhang Y-P., Asanuma J., Gamo M., Maeda T., Murayama S., Machimura T., Nakai Y., Ohta T., Saitoh T.M., Takahashi Y.
Name of Society : AsiaFlux Workshop 2014 on 'Bridging Atmosheric Flux Monitoring to National and International Climate Change Initiatives' (2014)
Name of Proceedings : Abstracts, 59
The impact of climate variation and disturbances on the carbon balance of forests in Hokkaido, Japan

Presenter : Hirata R., Takagi K., Ito A., Hirano T., Saigusa N.
Name of Society : 4th iLEAPS Science Conference (2014)
Name of Proceedings : -
The impacts of disturbance on the spatioal and temporal variations of carbon balance in forest ecosystems on Hokkaido, Japan

Presenter : Hirata R., Ito A., Saigusa N.
Name of Society : AGU Fall Meeting 2013 (2013)
Name of Proceedings : Abstracts
Simultaneous flux measurements of CO2, its stable isotope ratios and trace gases based on eddy accumulation technique for flux partitioning

Presenter : Takahashi Y., Hirata R.
Name of Society : AGU 2007 Fall Meet. (2007)
Name of Proceedings : Abstracts, B13B-1195
Variability in carbon stable isotope ratio of heterotrophic soil respiration in a deciduous needle-leaf forest

Presenter : Takahashi Y., Liang N., Hirata R., Machida T., Fujinuma Y.
Name of Society : AGU 2005 Fall Meet. (2005)
Name of Proceedings : Abstracts

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Changes in GHG fluxes by converting from disturbed secondary peat swamp forest to oil palm plantation

Presenter : Hirata R., Wong G.X., Kiew F, Takahashi Y., Onodera T., Nishina K., Aeries B.A., Musin K.K., Waili J.W., Lo K.S., Melling L.
Name of Society : AsiaFlux conference 2002 (2022)
Name of Proceedings : Abstracts, 126
Look back the history of tower flux observation in Asia

Presenter : Hirata R.
Name of Society : AsiaFlux2019-20th Anniversary Workshop- (2019)
Name of Proceedings : Proceedings, 30
Evaluation of greenhouse gas fluxes of tropical peat lands in Borneo island

Presenter : Hirata R.
Name of Society : 3rd International Forum on Sustainable Future in Asia (2018)
Name of Proceedings : Abstracts
Developing an integrated system to evaluate the carbon dynamics of tropical peat ecosystems in Borneo

Presenter : Hirata R.
Name of Society : 5th Annual Meeting Low Carbon Asia Research Network (LoCARNet) (2016)
Name of Proceedings : -

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HIRATA Ryuichi

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