Aura MLS

EOS MLS Derived Meteorological Products

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Original (version 1, v1) derived meteorological products (DMPs) for the Microwave Limb Sounder (MLS) for MLS v2.2 data are calculated from NASA GMAO's GEOS-5 and the UK Met Office (MetO) stratosphere/troposphere assimilated meteorological datasets. These gridded meteorological data and derived products (such as equivalent latitude (EqL) and vortex edge criteria) are interpolated to the locations of the MLS measurements. Version 2 (v2) DMPs, also known as “EDMPs”, are calculated from newer versions of GEOS5 and from the GEOS5-based MERRA and MERRA-2 reanalyses, and are provided for v3 and v4 MLS data (v2 DMPs for v2.x MLS data may be added if there is a demand for them). Other differences between v1 and v2 DMPs are described in their respective file specification notes on the file access page{s}.

The E/DMPs are a research product, and we need to be able to document their value to continue to get support for providing them. Therefore, we ask that you register and let us know what research project(s) you intend to use these in, as well as letting us know and giving an acknowledgment when you publish a paper using them. This will also allow us to notify you of any problems, updates, or usage issues that may arise. Upon approval of your registration, you'll set up a login and password that you can then use to download the files; information on file format and availability is given on the file access page.

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Steps for access to EOS MLS DMP files:

Access to MLS DMPs is restricted. To request access, please fill out the form. To be granted access, you must agree to NOT re-distribute any MLS DMP data obtained from this website.

This information will not be released to any outside party. For additional information, please see the NASA Privacy Statement