Data Products

MOPITT retrievals of carbon monoxide vertical profiles and total column are available for the period starting March 3, 2000 and continuing to the present. There is no operational MOPITT product for methane, due to a variety of problems with the methane-channel radiances. Some of these issues are documented in the 2005 paper "Effects of a spectral surface reflectance on measurements of backscattered solar radiation: Application to the MOPITT methane retrieval" by Pfister et al. (see Publications).

Errata

MOPITT Product Versions

ProductVariantsOperational PeriodCO State VectorCO A PrioriMet. FieldsN Retrieval Levels
V3*TIR 2002-2009 VMR Global (fixed)NCEP  7
V4*TIR 2009-2012 log(VMR) MOZARTNCEP  10
V5*TIR,NIR,TIR-NIR 2011-2016 log(VMR) MOZARTNCEP 10
V6TIR,NIR,TIR-NIR 2013-pres. log(VMR) CAM-chemMERRA  10
V7TIR,NIR,TIR-NIR 2016-pres. log(VMR) CAM-chemMERRA2 10

* no longer available

 
  • Version 6 (V6) Level 2 and Level 3 products are now available for the entire MOPITT mission.  Generally, V6 Level 2 and Level 3 products should become available between three weeks and two months after the actual observations; this data latency is the result of the dependency on the MERRA reanalysis. The same three retrieval variants are offered for V6 that were introduced for V5 (i.e., TIR-only, NIR-only, and TIR/NIR products). V6 products are provided in the HDF-EOS5 format, which can not be opened and read with software tools developed for HDF4 files (e.g., MOPITT V4 and V5 products). See the V6 User's Guide (updated Sept. 6, 2013) for more information.  V6 products are now validated; new V6 product features and validation results are reported in "The MOPITT Version 6 product: algorithm enhancements and validation," 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., and Wofsy, S. C.,  Atmos. Meas. Tech., 7, 3623-3632, doi:10.5194/amt-7-3623-2014, 2014. See the data product errata page for announcements of issues found in the V6 product.
 
  • Version 5 (V5) Level 2 and Level 3 products for CO vertical profiles and total column are available for the entire MOPITT mission (March, 2000 - present). Three Level 2 retrieval variants are offered for V5: A thermal infrared-only (TIR-only) product, similar to the V4 product; a new near infrared-only (NIR-only) product; and a new joint or multispectral TIR/NIR product. The V5 product is considered validated.  V5 validation results are reported in a recent 2013 JGR paper by Deeter et al.  V5 products are no longer available.
 
  • Version 4 (V4) products for CO vertical profiles and total column were produced for observations between March, 2000 through December, 2012.  The V4 product is considered 'validated.'  V4 products are no longer available.
 
  • Version 3 (V3) products for CO vertical profiles and total column were produced for observations between March, 2000 and July, 2009.  V3 products are no longer publicly available.
 
  • Version 2 (V2) products were produced only immediately after launch and are no longer publicly available.
 

Data Access

MOPITT products are publicly available from NASA through the following links:

 

V7 Product Documentation

V7 User's Guide (updated July 18, 2017)

A description of the V7 retrieval algorithm, Level 2 and Level 3 products
V7 L2 Data Quality SummaryCondensed discussion of the properties and limitations of the Version 7 Level 2 product.
V7 L3 Data Quality SummaryCondensed discussion of the properties and limitations of the Version 7 Level 3 product.

 

V6 Product Documentation 

V6 User's Guide (updated Sept. 6, 2013)

A description of the V6 retrieval algorithm, Level 2 and Level 3 products; users of the V6 product may also need to consult the V4 and V5 User's Guides.
V6 L2 Data Quality SummaryCondensed discussion of the properties and limitations of the Version 6 Level 2 product.
V6 L3 Data Quality SummaryCondensed discussion of the properties and limitations of the Version 6 Level 3 product.

 

V5 Product Documentation

V5 User's GuideA detailed description of the V5 retrieval algorithm and Level 2 product.
V5 L2 Data Quality Summary Condensed discussion of the properties and limitations of the Version 5 Level 2 product.

 

V4 Product Documentation

V4 User's GuideA detailed description of the V4 retrieval algorithm, Level 2 and Level 3 products.
V4 L2 Data Quality Summary Discussion of limitations of the Version 4 Level 2 product.
V4 L3 Data Quality Summary Discussion of limitations of the Version 4 Level 3 product.

 

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ACOM | Atmospheric Chemistry Observations & Modeling