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 geolocatio...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2014-11-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://www.atmos-meas-tech.net/7/3623/2014/amt-7-3623-2014.pdf |
| Summary: | 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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| ISSN: | 1867-1381 1867-8548 |