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Reduced solar‐induced chlorophyll fluorescence from GOME ‐2 during Amazon drought caused by dataset artifacts
Author(s) -
Zhang Yao,
Joiner Joana,
Gentine Pierre,
Zhou Sha
Publication year - 2018
Publication title -
global change biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.146
H-Index - 255
eISSN - 1365-2486
pISSN - 1354-1013
DOI - 10.1111/gcb.14134
Subject(s) - chlorophyll fluorescence , amazon rainforest , photosynthesis , ecosystem , environmental science , vegetation (pathology) , satellite , fluorescence , chlorophyll a , atmospheric sciences , degradation (telecommunications) , remote sensing , chemistry , botany , physics , geology , ecology , biology , astronomy , medicine , pathology , quantum mechanics , telecommunications , computer science
Recently, Yang et al. ([Yang, J., 2018]) reported a decrease in solar‐induced chlorophyll fluorescence ( SIF ) during 2015/2016 El Niño event albeit the increase in enhanced vegetation index ( EVI ). They interpreted the reduced SIF as a signal of reduced ecosystem photosynthesis. However, we argue that the reduced SIF during 2015/2016 is caused by a decreasing trend of SIF due to sensor degradation and the satellite overpass time is critical for drought impact assessment.