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Copyright Copernicus GmbH 2014

Abstract

The Measurements of Pollution in the Troposphere (MOPITT) Version 6 (V6) product for carbon monoxide (CO) incorporates several enhancements which will benefit many users of MOPITT data. V6 algorithm improvements are described in detail, and V6 validation results are presented. First, a geolocation bias related to the orientation of the MOPITT instrument relative to the TERRA platform was characterized and eliminated. Second, the variable a priori for CO concentrations for V6 is based on simulations performed with the chemical transport model Community Atmosphere Model with Chemistry (CAM-chem) for the years 2000-2009 instead of the model-derived climatology for 1997-2004 used for V5. Third, meteorological fields required for V6 retrieval processing are extracted from the MERRA (Modern-Era Retrospective Analysis For Research And Applications) reanalysis. Finally, a significant latitude-dependent retrieval bias in the upper troposphere in Version 5 products has been substantially reduced.

Details

Title
The MOPITT Version 6 product: algorithm enhancements and validation
Author
Deeter, M N; Martínez-Alonso, S; Edwards, D P; Emmons, L K; Gille, J C; Worden, H M; Sweeney, C; Pittman, J V; Daube, B C; Wofsy, S C
First page
3623
Publication year
2014
Publication date
2014
Publisher
Copernicus GmbH
ISSN
18671381
e-ISSN
18678548
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1621309550
Copyright
Copyright Copernicus GmbH 2014