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Constraining Sector-specific CO2 Fluxes using Space-based XCO2 Observations over the Los Angeles Basin
  • Dustin Roten,
  • John C. Lin,
  • Eric A. Kort
Dustin Roten
Jet Propulsion Laboratory, California Institute of Technology

Corresponding Author:droten@jpl.nasa.gov

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John C. Lin
University of Utah
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Eric A. Kort
University of Michigan-Ann Arbor
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The concentration of carbon dioxide (CO2) in Earth’s atmosphere is increasing due to human activities and the resulting effects on the global climate system have initiated sev- eral policy-driven approaches to reduce emissions of this greenhouse gas. Quantifying the effectiveness of such policies requires both bottom-up and top-down approaches to estimate CO2 emissions. This work investigates, for the first time, the potential of using SAM observations from NASA’s OCO-3 instrument to disaggregate sector-specific emissions from instrument observations. Optimized sector-specific timeseries were produced using Bayesian inversion techniques and compared to proxy activity data from the transportation, commercial maritime, and industrial sectors. Results demonstrate that dense space-based observations of atmospheric CO2 are capable of disentangling sector-specific CO2 fluxes, paving the way for accurate monitoring of the effects of carbon-reduction policies and operational carbon monitoring systems.
03 May 2023Submitted to ESS Open Archive
04 May 2023Published in ESS Open Archive