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Title: Atmospheric CO 2 Observations Reveal Strong Correlation Between Regional Net Biospheric Carbon Uptake and Solar-Induced Chlorophyll Fluorescence

Abstract

Recent studies have shown the promise of remotely sensed solar-induced chlorophyll fluorescence (SIF) in informing terrestrial carbon exchange, but analyses have been limited to either plot level (~1 km 2) or hemispheric/global (~108 km 2) scales due to the lack of a direct measure of carbon exchange at intermediate scales. Here we use a network of atmospheric CO 2 observations over North America to explore the value of SIF for informing net ecosystem exchange (NEE) at regional scales. We find that SIF explains space-time NEE patterns at regional (~100 km 2) scales better than a variety of other vegetation and climate indicators. We further show that incorporating SIF into an atmospheric inversion leads to a spatial redistribution of NEE estimates over North America, with more uptake attributed to agricultural regions and less to needleleaf forests. Our results highlight the synergy of ground-based and spaceborne carbon cycle observations.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [2]; ORCiD logo [3]; ORCiD logo [4];  [2]; ORCiD logo [2]
+ Show Author Affiliations
  1. Carnegie Inst. of Science, Stanford, CA (United States); Stanford Univ., CA (United States)
  2. Carnegie Inst. of Science, Stanford, CA (United States)
  3. California Inst. of Technology (CalTech), La Canada Flintridge, CA (United States). Jet Propulsion Lab.
  4. National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). Earth System Research Lab.
Publication Date:
Research Org.:
Pennsylvania State Univ., University Park, PA (United States); Univ. of California, Oakland, CA (United States); Savannah River Nuclear Solutions, Aiken, SC (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1537311
Grant/Contract Number:  
FG02-06ER64315; AC02-05CH11231; AC09-08SR22470
Resource Type:
Accepted Manuscript
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Volume: 45; Journal Issue: 2; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; Geology

Citation Formats

Shiga, Yoichi P., Tadić, Jovan M., Qiu, Xuemei, Yadav, Vineet, Andrews, Arlyn E., Berry, Joseph A., and Michalak, Anna M. Atmospheric CO 2 Observations Reveal Strong Correlation Between Regional Net Biospheric Carbon Uptake and Solar-Induced Chlorophyll Fluorescence. United States: N. p., 2017. Web. doi:10.1002/2017gl076630.
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Shiga, Yoichi P., Tadić, Jovan M., Qiu, Xuemei, Yadav, Vineet, Andrews, Arlyn E., Berry, Joseph A., & Michalak, Anna M. Atmospheric CO 2 Observations Reveal Strong Correlation Between Regional Net Biospheric Carbon Uptake and Solar-Induced Chlorophyll Fluorescence. United States. doi:10.1002/2017gl076630.
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Shiga, Yoichi P., Tadić, Jovan M., Qiu, Xuemei, Yadav, Vineet, Andrews, Arlyn E., Berry, Joseph A., and Michalak, Anna M. Tue . "Atmospheric CO 2 Observations Reveal Strong Correlation Between Regional Net Biospheric Carbon Uptake and Solar-Induced Chlorophyll Fluorescence". United States. doi:10.1002/2017gl076630. https://www.osti.gov/servlets/purl/1537311.
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@article{osti_1537311,
title = {Atmospheric CO 2 Observations Reveal Strong Correlation Between Regional Net Biospheric Carbon Uptake and Solar-Induced Chlorophyll Fluorescence},
author = {Shiga, Yoichi P. and Tadić, Jovan M. and Qiu, Xuemei and Yadav, Vineet and Andrews, Arlyn E. and Berry, Joseph A. and Michalak, Anna M.},
abstractNote = {Recent studies have shown the promise of remotely sensed solar-induced chlorophyll fluorescence (SIF) in informing terrestrial carbon exchange, but analyses have been limited to either plot level (~1 km2) or hemispheric/global (~108 km2) scales due to the lack of a direct measure of carbon exchange at intermediate scales. Here we use a network of atmospheric CO2 observations over North America to explore the value of SIF for informing net ecosystem exchange (NEE) at regional scales. We find that SIF explains space-time NEE patterns at regional (~100 km2) scales better than a variety of other vegetation and climate indicators. We further show that incorporating SIF into an atmospheric inversion leads to a spatial redistribution of NEE estimates over North America, with more uptake attributed to agricultural regions and less to needleleaf forests. Our results highlight the synergy of ground-based and spaceborne carbon cycle observations.},
doi = {10.1002/2017gl076630},
journal = {Geophysical Research Letters},
number = 2,
volume = 45,
place = {United States},
year = {2017},
month = {12}
}
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Journal Article:
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Publisher's Version of Record
DOI:  10.1002/2017gl076630
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Works referenced in this record:

A geostatistical approach to surface flux estimation of atmospheric trace gases
journal, January 2004

  • Michalak, Anna M.; Bruhwiler, Lori; Tans, Pieter P.
  • Journal of Geophysical Research, Vol. 109, Issue D14
  • DOI: 10.1029/2003JD004422
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