MOPITT Data

MOPITT data are available from the Atmospheric Science Data Center.

Level 1 

The MOPITT Level 1 product is a single-instrument product, containing calibrated radiances and associated uncertainties for 12 CO-sensitive channels and 4 methane sensitive channels in “swath” format, along with geolocation information. Version 4 of this product was released in 2009. A new Version 5 Level 1 product, including improved radiance noise values, is planned for delivery during the first quarter of 2011. The primary user of this product is the MOPITT Science Investigator-led Processing System (SIPS) which exploits it for MOPITT Level 2 processing.  

Level 2 TIR

This product contains retrieved profiles of CO concentration on a ten-level grid and CO total column based on observations in the 4.7µ band. Product also includes (1) retrieval uncertainties, (2) retrieval geolocation information, (3) diagnostics including “averaging kernels” for each retrieval, and (4) retrieval byproducts including surface temperature and emissivity. All datasets are in “swath” format. MODIS cloudmask data are also used to produce this product. Version 4 of this product was released in 2009 and is fully validated. Visit MOPITT website for the latest information on this product. 

Level 2 NIR

This product contains retrieved profiles of CO concentration on a ten-level grid and CO total column based on observations in the 2.3 µ band. Product also includes (1) retrieval uncertainties, (2) retrieval geolocation information, (3) diagnostics including “averaging kernels” for each retrieval, and (4) various retrieval byproducts. All datasets are in “swath” format.  MODIS cloudmask data are also used to produce this product. The first (“beta”) version of this product will be included as part of the full MOPITT Version 5 product set which will be delivered starting in the first quarter of 2011.  

Level 2 Combined TIR/NIR

The combined TIR/NIR product contains retrieved profiles of CO concentration on a ten-level grid and CO total column based on observations in both the 4.7 µ and 2.3 µ bands. Compared to the TIR-only and NIR-only products, this product offers improved sensitivity to CO concentrations in the boundary layer. Product also includes (1) retrieval uncertainties, (2) retrieval geolocation information, (3) diagnostics including “averaging kernels” for each retrieval, and (4) retrieval byproducts including surface temperature and emissivity. All datasets are in “swath” format. MODIS cloudmask data are also used to produce this product. The first (“beta”) version of this product will be included as part of the full MOPITT Version 5 product set which will be delivered starting in the first quarter of 2011.

Level 3 TIR

This product includes daily and monthly-mean averages of MOPITT Level 2 TIR product data, averaged on a 1° x 1° latitude/longitude grid. Various diagnostics, such as grid cell-averaged averaging kernels, are also included. MODIS cloudmask data are required to produce the MOPITT Level 2 product which the Level 3 product requires. Version 4 of this product was released in 2009 and is fully validated. A new Version 5 product, including improved retrieval uncertainties and other refinements, has been provisionally validated and will be delivered in 2011. 

Level 3 NIR

This product includes daily and monthly-mean averages of MOPITT Level 2 NIR product data, averaged on a 1° x 1° latitude/longitude grid. Various diagnostics, such as grid cell-averaged averaging kernels, are also included. MODIS cloudmask data are required to produce the MOPITT Level 2 product which this Level 3 product requires. The first (“beta”) version of this product will be included in the MOPITT Version 5 product set and will be delivered in 2011. 

Level 3 Combined TIR/NIR

The combined TIR/NIR product includes daily and monthly-mean averages of MOPITT Level 2 data, averaged on a 1°x 1° latitude/longitude grid. Compared to the TIR-only and NIR-only products. This product offers improved sensitivity to CO such as grid cell-averaged averaging kernels, which are also included.  MODIS cloudmask data are required to produce the MOPITT Level 2 product which this Level 3 product requires. Product will be based on both NIR and TIR radiances only. The first (“beta”) version of this product will be included in the MOPITT Version 5 product set and will be delivered in 2011.