CO2 flux measurements above the Kiryu Experimental Watershed

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The present dataset includes CO2 flux measurements above a temperate forest at Kiryu Experimental Watershed in 2022. The CO2 flux measurements were conducted using eddy covariance and true eddy accumulation technique.

Description

Creator
Takuya Saito*1, Ayaka Sakabe*2, Satoru Takanashi*3, Yoshiko Kosugi*2
*1 Earth System Division, National Institute for Environmental Studies (NIES)
*2 Graduate School of Agriculture, Kyoto University
*3 Kansai Research Center, Forestry and Forest Products Research Institute
Release date
2024/09/20
Temporal coverage
2022/05/27 - 2022/12/25
Data provider
NIES
Email: cgerdb_admin(at)nies.go.jp
DOI
File format
Data volume
3.07 MB
Version
ver.1.0 (Last updated: 2024/09/20)
Language
English

Data Set

Parameters
CO2 flux
Observation period
2022/05/27 - 2022/12/25
Location
34º 57' 49" N, 135º 59' 40" E
Altitude
Elevation: 190.0 m;
Observational altitude: 219 m
Measurement method
The CO2 flux measurements were conducted using eddy covariance (EC) and true eddy accumulation technique (TEA).
Calculation method
The TEA CO2 flux was simulated using the 10 Hz EC data following the protocols for TEA flux measurements. Two types of simulations were carried out: one with the wind threshold and one without.
Keywords
[Free keywords]
True eddy accumulation, Eddy covariance
[GCMD_Platform]
Land-based Platforms > Permanent Land Sites > GROUND STATIONS
[GCMD_Science]
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON MONOXIDE > CARBON MONOXIDE SURFACE
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ETHANE
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > NON-METHANE HYDROCARBONS/VOLATILE ORGANIC COMPOUNDS
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > OXYGEN COMPOUNDS > ATMOSPHERIC OZONE > OZONE SURFACE
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > NITROGEN COMPOUNDS > NITROGEN OXIDES
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > NITROGEN COMPOUNDS > NITROGEN DIOXIDE
ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE
ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > RELATIVE HUMIDITY
ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND DIRECTION
ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED
Update history
[2024/09/20]
Version 1.0 was released (ver.1.0)

Reference Information

References
Saito et al. (manuscript in preparation), A true eddy accumulation system for measuring trace gas flux: development and evaluation above a forest

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When this data set is referred to in publications, it should be cited in the following format.
Saito T, Sakabe A, Takanashi S, and Kosugi Y (2024), CO2 flux measurements above the Kiryu Experimental Watershed, ver.x.x.*1, NIES, DOI:10.17595/20240920.001. (Reference date*2: YYYY/MM/DD)
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