2-meter temperatures in MERRA-2 derivation

[fivedolphins]

I am using the 2-meter temperatures in MERRA-2, and I am wondering where I can find documentation on how these are calculated in the model. I am wondering if they are interpolated between the skin temperature and the lowest model level, or if they are calculated in some other way? Thank you.

[mgreene]

Hello,

Our MERRA-2 data and subject matter experts will examine your question and formulate a reply shortly.

Note:
To subscribe to our monthly announcements mailing list, send a message with “Subscribe” in the Subject line to gsfc-gesdisc-announcements-join@lists.nasa.gov . You may also subscribe to the list on this page: https://lists.nasa.gov/mailman3/lists/gsfc-gesdisc-announcements.lists.nasa.gov/

[mbosilov]

The 2m data is computed from a Monin-Obukov type surface layer parameterization. See Molod et al. (2015) for some description and references to the derivations, linked from the MERRA-2 documentation pages.
https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/docs/