ODIAC Fossil Fuel CO2 Emissions Dataset

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The Open-Data Inventory for Anthropogenic Carbon dioxide (ODIAC) is a high-spatial resolution global emission data product of CO2 emissions from fossil fuel combustion (Oda and Maksyutov, 2011). In 2009, the first version of ODIAC was developed by Drs. Tomohiro Oda (now at the Universities Space Research Association, USRA) and Shamil Maksyutov under the Greenhouse gases Observing SATellite (GOSAT) project at the National Institute for Environmental Studies (NIES) in Japan.
ODIAC pioneered the combined use of space-based nighttime light data and individual power plant emission/location profiles to estimate the global spatial extent of fossil fuel CO2 emissions. With the innovative emission modeling approach, ODIAC achieved the fine picture of global fossil fuel CO2 emissions at a 1x1km, possibly the most beautiful global picture of man-made emissions. As seen in a number of publications in the literature, the ODIAC emission data product has been widely used by the international research community for a variety of research applications (e.g. CO2 flux inversion, urban emission estimation and observing system design experiments).
Since its original publication in 2011, the ODIAC team has made numerous modifications to the ODIAC emission model, and updated and upgraded the emission data product (see Oda et al. 2018). On this data site, the latest version of the ODIAC emission data product (ODIAC2020b, 2000-2019) is available for download. Previous versions of the emission data product, including the original version (ODIAC v1.7, 1980-2007), as published by Oda and Maksyutov (2011), are also archived, but only for reference purposes. The team encourages data users to use the latest, updated emission product (currently, ODIAC2020b) for their research applications, as the emission estimates included in previous versions of the data product are considered to be outdated once new product becomes available. The details of the ODIAC emission model/data product are described elsewhere (Oda and Maksyutov, 2011; Oda et al., 2018).


Release date
Temporal coverage
1979/01 - 2019/12 (Depends on version)
Data provider
Email: cgerdb_admin(at)nies.go.jp
File format
GeoTIFF (in Binary format before the version 2015a), netCDF
Data volume
16 GiB - 39 GiB (Depends on version)
Latest version
ODIAC2020b (Last updated: 2021/6/14)

Data Set

CO2 emissions from fossil fuel combustion, cement production and gas flaring
Spatial resolution
1x1km, 1x1degree
Time resolution
Atmosphere > Atmospheric Chemistry > Carbon and Hidrocarbon Compounds > Carbon Dioxide
[Free keywords]
Carbon Dioxide, CO2, Fossil fuel CO2 emissions, Carbon Cycle, Emission Inventory,
Atmospheric Inversion, GOSAT, OCO-2, OCO-3, CC BY
Update history
ODIAC2020b (GeoTIFF (1x1km) / netCDF (1x1degree), 2000-2019) is released.
ODIAC2020 (GeoTIFF (1x1km) / netCDF (1x1degree), 2000-2019) is released.
ODIAC2019 (GeoTIFF (1x1km) / netCDF (1x1degree), 2000-2018) is released.
ODIAC2018 (GeoTIFF (1x1km) / netCDF (1x1degree), 2000-2017) is released.
ODIAC2017 (GeoTIFF (1x1km) / netCDF (1x1degree), 2000-2016) is released.
ODIAC2016 is updated for bug fixs in the GeoTIFF (1x1km) version.
ODIAC2016 (GeoTIFF (1x1km) / netCDF (1x1degree), 2000-2015) is released.
ODIAC2015a is updated for bug fixs in the netCDF (1x1degree) version.
ODIAC2015a (GeoTIFF (1x1km) / netCDF (1x1degree), 2000-2014) is released.
ODIAC2013a (Binary (1x1km) / netCDF (1x1degree), 1979-2013) is released.


Data manager
Shamil Maksyutov


Oda, T., Maksyutov, S., and Andres, R. J.: The Open-source Data Inventory for Anthropogenic CO2, version 2016 (ODIAC2016): a global monthly fossil fuel CO2 gridded emissions data product for tracer transport simulations and surface flux inversions, Earth Syst. Sci. Data, doi:10.5194/essd-10-87-2018, 2018.
Oda, T. and Maksyutov, S.: A very high-resolution (1 km×1 km) global fossil fuel CO2 emission inventory derived using a point source database and satellite observations of nighttime lights, Atmos. Chem. Phys., 11, 543-556, doi:10.5194/acp-11-543-2011, 2011.

Terms and Conditions of Use*

*By accessing or using the Service you agree to be bound by these Terms. If you disagree with any part of the terms then you may not access the Service.

Citation format
When this data set is referred to in publications, it should, as a general rule, be made in the following format.
Tomohiro Oda, Shamil Maksyutov (2015), ODIAC Fossil Fuel CO2 Emissions Dataset (Version name*1: ODIACYYYY or ODIACYYYYa), Center for Global Environmental Research, National Institute for Environmental Studies, DOI:10.17595/20170411.001. (Reference date*2: YYYY/MM/DD)
*1 The version name is indicated in the name of each data file.
*2 As the reference date, please indicate the date you downloaded the files.
However, if the citation format is otherwise determined by the submission guidelines of the journal, the journal submission guidelines are to be followed.

Advisory Service

Advisory service
Data users are encouraged to report errors in the data product. We also welcome suggestions for data improvement, as well as proposals for research collaboration.
However, we (ODIAC team & Global Environmental Database team) will NOT respond to requests solely for technical assistance on the data use. Please familiarize yourself with our data product before use. We believe README files and journal references should provide enough information for data use, as well as data interpretation.