Sensitivity of top-down estimates of CO sources to GCTM transport

Details Sensitivity of top-down estimates of CO sources to GCTM transport Sensitivity of top-down estimates of CO sources to GCTM transport

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3321807a&link_type=abstract

Geophysical Research Letters, Volume 33, Issue 21, CiteID L21807

Physics

Geophysics

14

Atmospheric Composition And Structure: Constituent Sources And Sinks, Atmospheric Composition And Structure: Troposphere: Constituent Transport And Chemistry, Biogeosciences: Restoration, Mathematical Geophysics: Inverse Theory, Atmospheric Processes: Data Assimilation

Scientific paper

Estimates of CO sources derived from inversions using satellite observations still exhibit discrepancies. Here, we conduct controlled inverse analyses to elucidate the influence of model transport on the robustness of regional CO source estimates. We utilized Model of Ozone and Related chemical Tracers global chemical transport models (GCTM) driven by National Centers for Environmental Prediction and European Centre for Medium-Range Weather Forecast reanalyses, and GEOS-Chem GCTM driven by Global Modeling and Assimilation Office assimilated meteorology to generate response functions for prescribed regional CO sources. We find that inter-model differences in CO due to differences in transport are within 10-30% of inter-model mean CO concentration. However, these differences can translate to regionally significant spread in source estimates. While we find that CO source estimates for East Asia and North Africa are reasonably robust, we find inconsistencies and inter-model spread of greater than 40% in our source estimates for Indonesia, South America, Europe and Russia. This indicates the need for rigorous assessment on uncertainties in top-down source estimates through model inter-comparisons and ensemble approaches.

Affiliated with

Also associated with

No associations

Rating

Sensitivity of top-down estimates of CO sources to GCTM transport does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Sensitivity of top-down estimates of CO sources to GCTM transport, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensitivity of top-down estimates of CO sources to GCTM transport will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1315322