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Title: Reduced solar-induced chlorophyll fluorescence from GOME-2 during Amazon drought caused by dataset artifacts

Abstract

In a recent study, Yang et al. 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.

Authors:
 [1];  [2];  [1];  [1]
  1. Columbia Univ., New York, NY (United States). Dept. of Earth and Environmental Engineering
  2. NASA Goddard Space Flight Center, Greenbelt, MD (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1567122
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Global Change Biology
Additional Journal Information:
Journal Volume: 24; Journal Issue: 6; Journal ID: ISSN 1354-1013
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; 54 ENVIRONMENTAL SCIENCES; Amazon forest; drought; photosynthesis; solar-induced chlorophyll fluorescence; vegetation activity

Citation Formats

Zhang, Yao, Joiner, Joana, Gentine, Pierre, and Zhou, Sha. Reduced solar-induced chlorophyll fluorescence from GOME-2 during Amazon drought caused by dataset artifacts. United States: N. p., 2018. Web. doi:10.1111/gcb.14134.
Zhang, Yao, Joiner, Joana, Gentine, Pierre, & Zhou, Sha. Reduced solar-induced chlorophyll fluorescence from GOME-2 during Amazon drought caused by dataset artifacts. United States. doi:10.1111/gcb.14134.
Zhang, Yao, Joiner, Joana, Gentine, Pierre, and Zhou, Sha. Sat . "Reduced solar-induced chlorophyll fluorescence from GOME-2 during Amazon drought caused by dataset artifacts". United States. doi:10.1111/gcb.14134. https://www.osti.gov/servlets/purl/1567122.
@article{osti_1567122,
title = {Reduced solar-induced chlorophyll fluorescence from GOME-2 during Amazon drought caused by dataset artifacts},
author = {Zhang, Yao and Joiner, Joana and Gentine, Pierre and Zhou, Sha},
abstractNote = {In a recent study, Yang et al. 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.},
doi = {10.1111/gcb.14134},
journal = {Global Change Biology},
number = 6,
volume = 24,
place = {United States},
year = {2018},
month = {3}
}

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Cited by: 18 works
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Works referenced in this record:

Forest productivity and water stress in Amazonia: observations from GOSAT chlorophyll fluorescence
journal, June 2013

  • Lee, Jung-Eun; Frankenberg, Christian; van der Tol, Christiaan
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