SCR/Nimbus-4 Level 1 Calibrated Radiances V001 (SCRN4L1RAD) at GES DISC

SCRN4L1RAD is the Nimbus-4 Selective Chopper Radiometer (SCR) Level 1 Calibrated Radiances data product. The calibrated radiances are measured at 6 channels from 2.3 to 15 micrometers with a ground resolution of 25 km, and are "declouded" (interpolated and smoothed across regions of cloud). The radiances were used to obtain the temperatures of six successive 10-km layers of the atmosphere from earth or cloudtop level to 60-km height. The data were recovered from the original 9-track tapes, and are now stored online as daily files in their original proprietary binary format with about 14 orbits per day.

Spatial coverage is near global from latitude -80 to +80 degrees. The data are available from 27 July 1970 (day of year 208) to 20 February 1973 (day of year 51). The channel 1 temperature monitoring system failed on June 15, 1970, thereby reducing the accuracy of the SCR data. Channels 3 and 4 became noisy and unusable on April 18, 1972. The principal investigator for the SCR experiment was Dr. John T. Houghton from Oxford University.

This product was previously available from the NSSDC with the identifier ESAD-00096 (old ID 78-098A-10E).

Data and Resources

Additional Info

Field Value
Maintainer JAMES JOHNSON
Last Updated February 19, 2025, 00:43 (UTC)
Created February 19, 2025, 00:43 (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 NASA/GSFC. 2018-01-31. SCRN4L1RAD. Version 001. SCR/Nimbus-4 Level 1 Calibrated Radiances 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/SCRN4L1RAD_001.html. Digital Science Data.
creator NASA/GSFC
data-presentation-form Digital Science Data
graphic-preview-description Typical data coverage of a Nimbus 4 SCR Level 1 daily data file.
graphic-preview-file https://docserver.gesdisc.eosdis.nasa.gov/public/project/Nimbus/images/SCRN4L1RAD_Sample.png
harvest_object_id 3ee315b4-a74f-41aa-aa32-c0c09dd8686b
harvest_source_id b37e5849-07d2-41cd-8bb6-c6e83fc98f2d
harvest_source_title DNG Legacy Data
identifier C1459756630-GES_DISC
issued 1998-02-24
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1459756630-GES_DISC.html
language {en-US}
metadata_type geospatial
modified 1998-02-24
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
references {https://doi.org/10.1098/rspa.1970.0196}
release-place Greenbelt, MD, USA
resource-type Dataset
series-name SCRN4L1RAD
source_datajson_identifier true
source_hash 6e2567e2de6f915f0e419b12ac0e00820e7d6ea88679c405a550aa102176f2e2
source_schema_version 1.1
spatial -180.0 -80.0 180.0 80.0
temporal 1970-07-27T00:00:00Z/1973-02-20T23:59:59.999Z
theme {Nimbus,geospatial}