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Communication dans un congrès

Spatial analysis of footprint effects on CO2 flux measurements by eddy covariance method. A case study in rice paddy ecosystem

Abstract : The eddy covariance method is now widely used for estimating the net ecosystem CO2 flux (NEE) in various ecosystems. However, the spatial representativeness and scaling-up of such measurements are of the most critical issues. We investigated the effects of footprint on the CO2 flux measurements by the tower-sensor based on airborne/satellite remote sensing imagery. The spatial distribution of CO2 sink/source was derived from the spectral imagery and semi-empirical models. The flux value at the tower-sensor was estimated from the sink/source map combined with a footprint model. Comparison between estimated and measured flux values suggested that footprint effects cannot be negligible when the sink/source distribution is not uniform.
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Communication dans un congrès
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https://hal.inrae.fr/hal-02764252
Déposant : Migration Prodinra <>
Soumis le : jeudi 4 juin 2020 - 07:51:36
Dernière modification le : lundi 31 août 2020 - 10:36:49

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  • HAL Id : hal-02764252, version 1
  • PRODINRA : 26820

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Yoshio Inoue, Akira Miyata, Masami Mano, Hideyuki Nagai, Albert Olioso. Spatial analysis of footprint effects on CO2 flux measurements by eddy covariance method. A case study in rice paddy ecosystem. 38. Conference of the Remote Sensing Society of Japan, 2005, Japan. ⟨hal-02764252⟩

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