MSU Ch 2/3 Daily Lower Troposphere Temps with Limb93 Correction L3 1 day 2.5 degree x 2.5 degree V001 (MSULTT) at GES DISC

The Microwave Sounding Unit (MSU) Lower Troposphere Deep Layer Temperature product (MSULTT) provides gridded lower tropospheric temperatures derived from MSU instruments on several different platforms. The temperatures are derived using a combination of MSU channels 2 and 3 which has an averaging kernel that peaks near 500 hecto Pascals. The algorithm is based on Spencer and Christy (1990) with the LIMB 93 limb correction based on latitude, longitude, month, and scan angle. The MSU instruments measure the thermal emission of radiation by molecular oxygen at four frequencies near 60 GHz. North (south) of 66.7N (S) the footprint data are assigned to grid boxes in a weighted method depending on footprint latitude. Horizontal averaging is used

Data and Resources

Additional Info

Field Value
Maintainer THOMAS HEARTY
Last Updated July 17, 2025, 14:01 (UTC)
Created March 31, 2025, 12:50 (UTC)
accessLevel public
bureauCode {026:00}
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catalog_@id https://data.nasa.gov/data.json
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citation Spencer R., Christy J.R.. 1996-01-01. MSULTT. Version 001. MSU Ch 2/3 Daily Lower Troposphere Temps with Limb93 CorrectionL2 1 day 2.5 degree x 2.5 degree V001. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://disc.gsfc.nasa.gov/datacollection/MSULTT_001.html.
creator Spencer R., Christy J.R.
graphic-preview-file https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/MSULTT_001.png
harvest_object_id eceaba68-0fa0-47e1-a790-7ec1a5f581c1
harvest_source_id 61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title DNG Legacy Data
identifier C1261530310-GES_DISC
issued 1979-01-01
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1261530310-GES_DISC.html
language {en-US}
metadata_type geospatial
modified 1994-12-31
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
release-place Greenbelt, MD, USA
resource-type Dataset
series-name MSULTT
source_datajson_identifier true
source_hash 4bc6fb72d1307b3b944a0b3d9404bd7be1117f21aa25690c9f79be1fe4a82ab1
source_schema_version 1.1
spatial -180.0 -89.0 180.0 89.0
temporal 1979-01-01T00:00:00Z/1994-12-31T23:59:59.999Z
theme {"TOVS Pathfinder",geospatial}