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 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.
- Authors:
-
- Carnegie Inst. of Science, Stanford, CA (United States); Stanford Univ., CA (United States)
- Carnegie Inst. of Science, Stanford, CA (United States)
- California Inst. of Technology (CalTech), La Canada Flintridge, CA (United States). Jet Propulsion Lab.
- 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.
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.
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.
@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}
}
Web of Science
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