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Remotely Sensed Carbonyl Sulfide Constrains Model Estimates of Amazon Primary Productivity

Journal Article · · Geophysical Research Letters
DOI:https://doi.org/10.1029/2021gl096802· OSTI ID:1896351
 [1];  [2];  [3];  [4];  [4];  [5];  [6];  [3];  [3];  [7];  [3];  [8]
  1. University of California, Merced, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  2. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  3. California Institute of Technology (CalTech), Pasadena, CA (United States). Jet Propulsion Lab. (JPL)
  4. Karlsruhe Institute of Technology (KIT) (Germany)
  5. Colorado State University, Fort Collins, CO (United States)
  6. University of Hamburg (Germany)
  7. Johns Hopkins University, Baltimore, MD (United States)
  8. University of California, Santa Cruz, CA (United States)
+ Show Author Affiliations
We report understanding the magnitude of tropical gross primary production (GPP) is critical for carbon cycle modeling and climate projections, but this quantity is poorly constrained at regional scales. Biospheric uptake of carbonyl sulfide (OCS) provides a promising approach to estimating regional GPP. Here, we simulate OCS concentrations driven by surface flux scenarios encompassing a wide range of GPP estimates for the Amazon basin. We compare the model output to satellite retrievals and find a regional GPP estimate of 2375 ± 914 g(C) m–2 yr–1, consistent with previous estimates, including the TRENDY model ensemble range of 1431–3812 g(C) m–2 yr–1.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
National Aeronautics and Space Administration (NASA); USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
AC02-05CH11231; AC52-07NA27344; SC0011999
OSTI ID:
1896351
Report Number(s):
LLNL-JRNL-817829; 1028133
Journal Information:
Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 9 Vol. 49; ISSN 0094-8276
Publisher:
American Geophysical Union (AGU)Copyright Statement
Country of Publication:
United States
Language:
English

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Figures / Tables (16)

Figure 1(p. 16)figure Figure 1
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Table S1(p. 35)table Table S1
Table S2(p. 36)table Table S2
Movie S1(p. 37)figure Movie S1
Movie S2(p. 37)figure Movie S2

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54 ENVIRONMENTAL SCIENCES