The MOPITT Version 6 product: Algorithm enhancements and validation

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.

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Copyright Author(s) 2014. This work is distributed under the Creative Commons Attribution 3.0 License.
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Author Deeter, Merritt
Martinez-Alonso, Sara
Edwards, David
Emmons, Louisa
Gille, John
Worden, Helen
Sweeney, C.
Pittman, J.
Daube, B.
Wofsy, S.
Publisher UCAR/NCAR - Library
Publication Date 2014-11-05T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2023-08-18T18:43:30.597746
Metadata Record Identifier edu.ucar.opensky::articles:14405
Metadata Language eng; USA
Suggested Citation Deeter, Merritt, Martinez-Alonso, Sara, Edwards, David, Emmons, Louisa, Gille, John, Worden, Helen, Sweeney, C., Pittman, J., Daube, B., Wofsy, S.. (2014). The MOPITT Version 6 product: Algorithm enhancements and validation. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d7sj1mmp. Accessed 25 June 2025.

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