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Surface CO2 flux estimation and validation for 2010 and 2011 from CMS-Flux
Junjie
Liu, JPL, junjie.liu@jpl.nasa.gov
(Presenter)
Kevin
W
Bowman, JPL, kevin.w.bowman@jpl.nasa.gov
Michelle
Gierach, Jet Propulsion Laboratory, mgierach@jpl.nasa.gov
George
James
Collatz, NASA GSFC, jim.collatz@nasa.gov
Meemong
Lee, JPL, meemong.lee@jpl.nasa.gov
Kevin
Robert
Gurney, Arizona State University, kevin.gurney@asu.edu
John
Miller, NOAA Earth System Research Laboratory, john.b.miller@noaa.gov
Dimitris
Menemenlis, JPL, dimitris.menemenlis@jpl.nasa.gov
Nicolas
Bousserez, University of Colorado, nicolas.bousserez@colorado.edu
NASA Carbon Monitoring System Flux (CMS-Flux) attributes observed atmosphere CO2 changes to spatiotemporally resolved surface fluxes using atmospheric flux inversion. Because of the possible biases in the satellite observations, the errors in the transport and the assumptions of the prior flux error statistics, validation of the flux inversion results becomes important to understand the assumptions made in the flux inversion process and to interpret posterior fluxes scientifically. In this paper, we show surface CO2 flux estimation for 2010 and 2011 from assimilating ACOS-GOSAT b3.5 observations into CMS-Flux inversion system. We further show the attribution of the total CO2 fluxes to biomass burning and non-biomass burning emission by assimilating CO observations in the same inversion system. The results show the tropics have become stronger source and the sink strength over Europe become stronger in 2011 compared to 2010. The changes of biomass burning play a major role in the tropics. We will show the validation of the flux inversion results by comparing to the posterior fluxes from MACC III and CarbonTraker. We will further show the validation of posterior CO2 concentration against independent CO2 observations, such as aircraft observations, TCCON, and surface CO2 observations. At last, we discuss the usefulness and limitations of these validation strategies.
Presentation Type: Poster
Session: Carbon Monitoring System (CMS) Posters
(Mon 1:30 PM)
Associated Project(s):
- Bowman, Kevin: Continuation of the Carbon Monitoring System Flux Pilot Project ...details
- Bowman, Kevin: Continuation of the CMS-Flux Pilot Project ...details
Poster Location ID: 167
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