MOPITT Version 4 Products for CO: Content, Format, and Validation
Abstract
Observations from the Measurements of Pollution in the Troposphere (MOPITT) satellite instrument form a nearly continuous nine-year global record of tropospheric carbon monoxide. MOPITT radiance data are now being reprocessed into a new retrieval product. Following numerous analyses and developments in instrument modeling, radiative transfer modeling and retrieval algorithm design, the new Version 4 MOPITT product offers users (1) improved retrieval performance in both clean and heavily polluted atmospheres, (2) geographically- and seasonally-variable a priori, and (3) significantly reduced long-term drift. The diagnostic content of the MOPITT Level 2 product has also been enhanced for users' convenience. For example, the retrieval averaging kernels, which quantify the retrievals' vertical sensitivity, are now a standard diagnostic within the Level 2 product. We will highlight the major differences between the new Version 4 and previous Version 3 MOPITT products, in both content and format, and present validation results in the form of comparisons to CO in-situ profiles. Preliminary plans for the MOPITT Version 5 product will also be outlined.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2008
- Bibcode:
- 2008AGUFM.A21B0136D
- Keywords:
-
- 0345 Pollution: urban and regional (0305;
- 0478;
- 4251);
- 0365 Troposphere: composition and chemistry;
- 1640 Remote sensing (1855)