THIR/Nimbus-7 Images of Daytime and Nighttime Brightness Temperature on 70 mm Film V001 (THIRN7IM) at GES DISC

THIRN7IM is the Nimbus-7 Temperature-Humidity Infrared Radiometer (THIR) data product consisting of daily montages of brightness temperatures measured at 6.7 and 11.5 microns. Each montage contains either a daytime or nighttime assembly of up to 14 individual swaths. Each swath corresponds to a distance approximately from pole to pole and a width from horizon to horizon. The ground resolution is 22.6 km for 6.7 microns and 8.2 km for 11.5 microns at nadir and decreases as the horizontal distance from the subsatellite track increases. Below each swath is information describing the orbit number, and the equator crossing longitude and time.

The THIR instrument was designed to detect emitted thermal radiation in both the 10.5 to 12.5 micron region (IR window) and the 6.5 to 7.0 micron region (water vapor). The window channel measured cloudtop temperatures day and night. The other channel operated primarily at night to map the water vapor distribution in the upper troposphere and stratosphere. The THIR experiment made measurements from Oct. 30, 1978 to May 9, 1985 when the instrument was turned off to conserve power. Additional information can be found in section 9 of "The Nimbus 7 User's Guide," and the "Nimbus 7 Temperature-Humidity Infrared Radiometer (THIR) Data User's Guide."

This product was previously available from the NSSDC as two products with the identifiers ESAD-00174 and ESAD-00239 (old ID 78-098A-10A and 78-098A-10B).

Data and Resources

Additional Info

Field Value
Maintainer JAMES JOHNSON
Last Updated February 19, 2025, 08:13 (UTC)
Created February 19, 2025, 08:13 (UTC)
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
citation Goddard Space Flight Center (GSFC). 2011-06-27. THIRN7IM. Version 001. THIR/Nimbus-7 Images of Daytime and Nighttime Brightness Temperature on 70 mm Film 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/THIRN7IM_001.html. Digital Science Data.
creator Goddard Space Flight Center (GSFC)
data-presentation-form Digital Science Data
graphic-preview-file https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/THIRN7IM_001.png
harvest_object_id 9e9d5689-c43a-4902-8701-b6eca327c3fe
harvest_source_id b37e5849-07d2-41cd-8bb6-c6e83fc98f2d
harvest_source_title DNG Legacy Data
identifier C1273652171-GES_DISC
issued 2011-06-27
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1273652171-GES_DISC.html
language {en-US}
metadata_type geospatial
modified 2019-05-21
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
release-place Greenbelt, MD, USA
resource-type Dataset
series-name THIRN7IM
source_datajson_identifier true
source_hash 0e18d91a80af0b0f7852f74610f44ee28a6d34f812a8d5438e1c04434ed71caa
source_schema_version 1.1
spatial -180.0 -90.0 180.0 90.0
temporal 1978-10-29T00:00:00Z/1985-05-10T23:59:59.999Z
theme {Nimbus,geospatial}