Comparison of Aura TES Methane Profiles to Model Estimates Constrained by SCIAMACHY Total Column Measurements
Abstract
Recent increases in tropospheric methane between 2004 to the present have yet to be robustly explained by either increases in tropical emissions, high latitude wetlands, anthropogenic emissions, or changes in the global methane sink. New TES methane profiles, with spatial coverage over the whole globe, and with vertical profiling capability from 800 hPa to 200 hPa have the capability to place constraints on the temporal variability of methane emissions from these different sources and their subsequent transport. Here we present a comparison between these new TES data to model estimates that have been constrained by total column measurements of methane from the SCIAMACHY instrument for the year 2005. A subsequent analysis will relate observed differences to uncertainties in the emission strengths or transport.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2011
- Bibcode:
- 2011AGUFM.A33C0223W
- Keywords:
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- 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE;
- 0365 ATMOSPHERIC COMPOSITION AND STRUCTURE / Troposphere: composition and chemistry;
- 0368 ATMOSPHERIC COMPOSITION AND STRUCTURE / Troposphere: constituent transport and chemistry;
- 0428 BIOGEOSCIENCES / Carbon cycling