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Description

The Microwave Sounding Unit (MSU) Lower Stratosphere Deep Layer Mean Temperature product (MSULST) provides gridded lower stratospheric temperatures for each day derived from MSU instruments on several different platforms. The temperatures are derived from MSU channel 4 using the method of 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
to fill some of the empty grid boxes.

Product Summary

Platforms
TIROS-N ,
NOAA-12 ,
NOAA-11 ,
NOAA-10 ,
NOAA-9 ,
NOAA-7 ,
NOAA-6
Instruments
MSU
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Location
GLOBAL ,
STRATOSPHERE
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1979-01-01 to 1994-12-31
Data Partner
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/GESDI
Concept ID
C1261530244-GES_DISC
Data State
COMPLETE
Number of Files/Granules
16
Processing Level
3
Published
Updated
Science Keywords
Air Temperature ,
Temperature Anomalies ,
Brightness Temperature

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Spencer R., C. J. R. (2026). MSU Ch 4 Daily Lower Stratosphere Temps with Limb93 Correction L3 1 day 2.5 degree x 2.5 degree V001 [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/TG43OHFX3HPU Date Accessed: 2026-02-02

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