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Correcting Clear‐Sky Bias in Gross Primary Production Modeling From Satellite Solar‐Induced Chlorophyll Fluorescence Data
Author(s) -
Zhang Zhaoying,
Zhang Yongguang,
Zhang Yao,
Chen Jing M.
Publication year - 2020
Publication title -
journal of geophysical research: biogeosciences
Language(s) - English
Resource type - Journals
eISSN - 2169-8961
pISSN - 2169-8953
DOI - 10.1029/2020jg005822
Subject(s) - sky , satellite , environmental science , remote sensing , primary production , canopy , atmospheric sciences , meteorology , physics , geography , astronomy , ecology , ecosystem , biology , archaeology
Key Points A practical approach is proposed to correct clear‐sky bias in GPP estimation from satellite clear‐sky SIF data The reduction in GPP due to the decreasing PAR is partly compensated by enhancement of light use efficiency under cloudy conditions Global terrestrial GPP is obtained from total canopy SIF emission after correcting clear‐sky bias