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Description

This data set consists of daily, global grayscale TIFF images derived from radiative temperatures measured in the 11.5 µm window (10.5 µm - 12.5 µm). These data were detected by the Temperature-Humidity Infrared Radiometer (THIR) on board the Nimbus 4, Nimbus 5, and Nimbus 6 satellites, respectively, during 1970-1971, 1973-1975 and 1975. The Nimbus satellites used the THIR 11.5 µm window to measure cloud top or surface temperatures. Note: This data set is not georeferenced and contains some gaps in temporal coverage because of missing data.

Version Description

Initial data release

Product Summary

Platforms
Nimbus-4 ,
Nimbus-5 ,
Nimbus-6
Instruments
THIR
Projects
Nimbus Data Rescue
Spatial Extent

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

Spatial Resolution
5 Kilometers x 5 Kilometers
Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1975-06-13 to 1975-11-11
Temporal Resolution
40 Minute
Concept ID
C3442605382-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
78099
Processing Level
1
Published
Science Keywords
Infrared Imagery

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

Gallaher, D., & Campbell, G. G. (2020). Nimbus Temperature-Humidity Infrared Radiometer 11.5 ??m Grayscale Swath Data L1, TIFF, Version 1 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/CHQTHBBT42QL Date Accessed: 2026-09-11

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