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THIR/Nimbus-5 Level 1 Meteorological Radiation Data at 6.7 microns V001 (THIRN5L1CH67) at GES DISC

Published by NASA/GSFC/SED/ESD/GCDC/GESDISC | National Aeronautics and Space Administration | Catalog Last Checked: May 18, 2026 at 04:49 PM | Dataset Last Updated: March 31, 2025
THIRN5L1CH67 is the Nimbus-5 Temperature-Humidity Infrared Radiometer (THIR) Level 1 Meteorological Radiation Data at 6.7 microns product and contains radiances expressed in units of equivalent brightness temperature measured in the 6.7 micron channel. The data, originally written on IBM 360 machines, were recovered from magnetic tapes, also referred to as Nimbus Meteorological Radiation Tapes (NMRT-THIR). The data are archived in their original IBM 36-bit word proprietary format, also referred to as a binary TAP file. The Nimbus-5 satellite was successfully launched on December 11, 1972. The THIR experiment on Nimbus-5 continued the measurements made by its predecessor flown on Nimbus-4. The THIR instrument is a two channel high resolution scanning radiometer designed to perform two major functions:* 11.5 micron channel provides both day and night cloud top or surface temperatures. The ground resolution at the sub-point is 8 km and operates day and night.* 6.7 micron channel gives information on the moisture content of the upper troposphere and stratosphere and the location of jet streams and frontal systems. The water vapor channel has a resolution of the sub-point is 22 km and operates mostly at night. The THIR Principal Investigator was Andrew W. McCulloch from NASA Goddard Space Flight Center. The Nimbus-5 THIR data are available from December 19, 1972 (day of year 354) through August 26, 1974 (day of year 238). The THIRN5L1CH115 product contains the 11.5 micron channel data. This product was previously available from the NSSDC with the identifier ESAD-00167 (old ID 72-097A-08D).

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "026:00"
]
contactPoint 
{
  "fn": "JAMES JOHNSON",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:James.Johnson@nasa.gov"
}
description THIRN5L1CH67 is the Nimbus-5 Temperature-Humidity Infrared Radiometer (THIR) Level 1 Meteorological Radiation Data at 6.7 microns product and contains radiances expressed in units of equivalent brightness temperature measured in the 6.7 micron channel. The data, originally written on IBM 360 machines, were recovered from magnetic tapes, also referred to as Nimbus Meteorological Radiation Tapes (NMRT-THIR). The data are archived in their original IBM 36-bit word proprietary format, also referred to as a binary TAP file. The Nimbus-5 satellite was successfully launched on December 11, 1972. The THIR experiment on Nimbus-5 continued the measurements made by its predecessor flown on Nimbus-4. The THIR instrument is a two channel high resolution scanning radiometer designed to perform two major functions:* 11.5 micron channel provides both day and night cloud top or surface temperatures. The ground resolution at the sub-point is 8 km and operates day and night.* 6.7 micron channel gives information on the moisture content of the upper troposphere and stratosphere and the location of jet streams and frontal systems. The water vapor channel has a resolution of the sub-point is 22 km and operates mostly at night. The THIR Principal Investigator was Andrew W. McCulloch from NASA Goddard Space Flight Center. The Nimbus-5 THIR data are available from December 19, 1972 (day of year 354) through August 26, 1974 (day of year 238). The THIRN5L1CH115 product contains the 11.5 micron channel data. This product was previously available from the NSSDC with the identifier ESAD-00167 (old ID 72-097A-08D).
distribution 
[
  {
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    "title": "Download this dataset through a directory map",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "Access the data via HTTPS.",
    "downloadURL": "https://acdisc.gesdisc.eosdis.nasa.gov/data/Nimbus5_THIR_Level1/THIRN5L1CH67.001/"
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  {
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    "description": "Additional Nimbus data and images can be found at NSIDC",
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    "@type": "dcat:Distribution",
    "title": "View documentation related to this dataset",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "N5 THIR Ch 6.7 Inventory",
    "downloadURL": "https://docserver.gesdisc.eosdis.nasa.gov/public/project/Nimbus/N5_THIR_Ch67_Inventory.xlsx"
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    "title": "View documentation related to this dataset",
    "format": "GZ",
    "mediaType": "application/gzip",
    "description": "Nimbus 5 Data Catalog",
    "downloadURL": "https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/Nimbus/3.3_Product_Documentation/3.3.5_Product_Quality/DataCatalogNimbus5.tar.gz"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View this dataset's user's guide",
    "format": "PDF",
    "mediaType": "application/pdf",
    "description": "Nimbus 5 User's Guide",
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  {
    "@type": "dcat:Distribution",
    "title": "View this dataset's read me document",
    "format": "PDF",
    "mediaType": "application/pdf",
    "description": "README Document",
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  },
  {
    "@type": "dcat:Distribution",
    "title": "Download this dataset through Earthdata Search",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "Use the Earthdata Search to find and retrieve data sets across multiple data centers.",
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  },
  {
    "@type": "dcat:Distribution",
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    "format": "PNG",
    "mediaType": "image/png",
    "downloadURL": "https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/THIRN5L1CH67_001.png"
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]
identifier C1273652169-GES_DISC
issued 2013-12-27
keyword 
[
  "earth-science",
  "infrared-wavelengths",
  "spectral-engineering"
]
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1273652169-GES_DISC.html
language 
[
  "en-US"
]
modified 2025-03-31
programCode 
[
  "026:001"
]
publisher 
{
  "name": "NASA/GSFC/SED/ESD/GCDC/GESDISC",
  "@type": "org:Organization"
}
spatial -180.0 -90.0 180.0 90.0
temporal 1972-12-19T00:00:00Z/1974-08-26T23:59:59.999Z
theme 
[
  "Nimbus",
  "geospatial"
]
title THIR/Nimbus-5 Level 1 Meteorological Radiation Data at 6.7 microns V001 (THIRN5L1CH67) at GES DISC

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