Carbon Monitoring System Flux Net Biosphere Exchange 2020 (CMS-Flux NBE 2020)

J. Liu; J. Liu; L. Baskaran; K. Bowman; D. Schimel; A. A. Bloom; N. C. Parazoo; T. Oda; T. Oda; D. Carroll; D. Menemenlis; J. Joiner; R. Commane; B. Daube; L. V. Gatti; K. McKain; K. McKain; J. Miller; B. B. Stephens; C. Sweeney; S. Wofsy

doi:10.5194/essd-13-299-2021

Earth System Science Data (Feb 2021)

Carbon Monitoring System Flux Net Biosphere Exchange 2020 (CMS-Flux NBE 2020)

J. Liu,
J. Liu,
L. Baskaran,
K. Bowman,
D. Schimel,
A. A. Bloom,
N. C. Parazoo,
T. Oda,
T. Oda,
D. Carroll,
D. Menemenlis,
J. Joiner,
R. Commane,
B. Daube,
L. V. Gatti,
K. McKain,
K. McKain,
J. Miller,
B. B. Stephens,
C. Sweeney,
S. Wofsy

Affiliations

J. Liu: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
J. Liu: California Institute of Technology, Pasadena, CA, USA
L. Baskaran: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
K. Bowman: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
D. Schimel: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
A. A. Bloom: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
N. C. Parazoo: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
T. Oda: Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, USA
T. Oda: Goddard Earth Sciences Technology and Research, Universities Space Research Association, Columbia, MD, USA
D. Carroll: Moss Landing Marine Laboratories, San José State University, Moss Landing, CA, USA
D. Menemenlis: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
J. Joiner: Laboratory for Atmospheric Chemistry and Dynamics, NASA Goddard Space Flight Center, Greenbelt, USA
R. Commane: Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, USA
B. Daube: Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, USA
L. V. Gatti: LaGEE, CCST, INPE – National Institute for Space Research, São José dos Campos, SP, Brazil
K. McKain: NOAA, Global Monitoring Laboratory, Boulder, CO 80305, USA
K. McKain: Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, USA
J. Miller: NOAA, Global Monitoring Laboratory, Boulder, CO 80305, USA
B. B. Stephens: National Center for Atmospheric Research, Boulder, CO 80301, USA
C. Sweeney: NOAA, Global Monitoring Laboratory, Boulder, CO 80305, USA
S. Wofsy: Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, USA

DOI: https://doi.org/10.5194/essd-13-299-2021
Journal volume & issue: Vol. 13
pp. 299 – 330

Abstract

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Here we present a global and regionally resolved terrestrial net biosphere exchange (NBE) dataset with corresponding uncertainties between 2010–2018: Carbon Monitoring System Flux Net Biosphere Exchange 2020 (CMS-Flux NBE 2020). It is estimated using the NASA Carbon Monitoring System Flux (CMS-Flux) top-down flux inversion system that assimilates column CO2 observations from the Greenhouse Gases Observing Satellite (GOSAT) and NASA's Observing Carbon Observatory 2 (OCO-2). The regional monthly fluxes are readily accessible as tabular files, and the gridded fluxes are available in NetCDF format. The fluxes and their uncertainties are evaluated by extensively comparing the posterior CO2 mole fractions with CO2 observations from aircraft and the NOAA marine boundary layer reference sites. We describe the characteristics of the dataset as the global total, regional climatological mean, and regional annual fluxes and seasonal cycles. We find that the global total fluxes of the dataset agree with atmospheric CO2 growth observed by the surface-observation network within uncertainty. Averaged between 2010 and 2018, the tropical regions range from close to neutral in tropical South America to a net source in Africa; these contrast with the extra-tropics, which are a net sink of 2.5±0.3 Gt C/year. The regional satellite-constrained NBE estimates provide a unique perspective for understanding the terrestrial biosphere carbon dynamics and monitoring changes in regional contributions to the changes of atmospheric CO2 growth rate. The gridded and regional aggregated dataset can be accessed at https://doi.org/10.25966/4v02-c391 (Liu et al., 2020).

Published in Earth System Science Data

ISSN: 1866-3508 (Print); 1866-3516 (Online)
Publisher: Copernicus Publications
Country of publisher: Germany
LCC subjects: Geography. Anthropology. Recreation: Environmental sciences; Science: Geology
Website: http://www.earth-system-science-data.net/

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