Methane
Product Description
methane
AIRS Standard Methane Product
A product of the IR stage of the combined IR/MW retrieval. Reported is the retrieved volume mixing ratio (ratio of number of methane molecules to the number of molecules of air in a unit volume) for a layer which is defined by the faces of a methane trapezoidal retrieval function. The boundaries of these layers are specified in terms of a 100-level AIRS support pressure array. In V5, there are 7 such layerscorresponding to the 7 trapezoidal retrieval functions utilized for methane. Also reported are the methane effective pressure, and retrieved total column methane. Sensitivity is mainly in the mid tropopsphere which makes it best suited for global daily observations.
Data Source
Available in L2 and L3 data product sets.
Image Examples
Methane Multimedia web page
More Information
For more detail about AIRS geophysical products, refer to the AIRS Version 5 Release Level 2 Standard Product QuickStart Guide.
Additional information is also found on the AIRS Documentation Page on the data distribution web site at the Goddard DAAC.
