Comparison of Aura TES Methane Profiles to Model Estimates Constrained by SCIAMACHY Total Column Measurements

Author: J.R. Worden and Vivienne H. Payne
Date: 
December 7, 2011
Type: 
Poster presentation
Venue: 
AGU Fall Meeting 2011
Citation: 

J. Worden, S. Kulawik, C. Frankenberg, P.M. Bergamaschi, K.W. Bowman, Vivienne Payne (2011) Comparison of Aura TES Methane Profiles to Model Estimates Constrained by SCIAMACHY Total Column Measurements. AGU Fall Meeting 2011.

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.