Imaging · dataset · 2025
SIRS/Nimbus-4 Level 1 Radiance Data V001 (SIRSN4L1) at GES DISC
Listed in NASA Data Portal
SIRSN4L1 is the Nimbus-4 Satellite Infrared Spectrometer (SIRS) Level 1 Radiance Data product.
Description
SIRS measured infrared radiation (11 to 36 micrometers) emitted from the earth and its atmosphere in 13 selected spectral intervals in the carbon dioxide and water vapor bands plus one channel in the 11-micrometer atmospheric window. The radiances were used to determine the vertical temperature and water vapor profiles of the atmosphere.
The data were recovered from the original 6250 tapes, and are now stored online as daily files in their original proprietary binary format each with about 14 orbits per day. The Nimbus-4 SIRS used a scan mirror to observe 12.5 deg to either side of the subsatellite track. Spatial coverage is near global from latitude -85 to +85 degrees.
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The data are available from 08 April 1970 (day of year 98) to 08 April 1971. The principal investigator for the SIRS experiment was Dr. David Q. Wark from the NOAA National Environmental Satellite Data and Information Service.
This product was previously available from the NSSDC with the identifier ESAD-00130 (old ID 70-025A-04A).
Links
Get the data
- Download this dataset through a directory map acdisc.gesdisc.eosdis.nasa.gov/data/Nimbus4_SIRS_Level1/SIRSN4L1.001 ↗
download · from data nasa gov
- Download this dataset through Earthdata Search search.earthdata.nasa.gov/search?q=SIRSN4L1 ↗
download · from data nasa gov
- View this dataset's read me document acdisc.gesdisc.eosdis.nasa.gov/data/Nimbus4_SIRS_Level1/SIRSN4L1.001/doc/README.SIRSN4L1.001.… ↗
download · from data nasa gov
- View this dataset's user's guide docserver.gesdisc.eosdis.nasa.gov/repository/Mission/NIMBUS/3.3_Product_Documentation/3.3.5_Prod… ↗
download · from data nasa gov
- View documentation related to this dataset docserver.gesdisc.eosdis.nasa.gov/repository/Mission/NIMBUS/3.3_Product_Documentation/3.3.5_Prod… ↗
download · from data nasa gov
- Get a related visualization docserver.gesdisc.eosdis.nasa.gov/public/project/Nimbus/images/SIRSN4L1_Sample.png ↗
download · from data nasa gov
- View documentation related to this dataset docserver.gesdisc.eosdis.nasa.gov/public/project/Nimbus/N4_SIRS_Inventory.xlsx ↗
download · from data nasa gov
- This dataset's landing page disc.gsfc.nasa.gov/datacollection/SIRSN4L1_001.html ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/sirs-nimbus-4-level-1-radiance-data-v001-sirsn4l1-at-g… ↗
landing page · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=6e63299d-33fc-4f1c-a8e0-fefab56ac… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Earth & Environmental Science · Engineering
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | 6e63299d-33fc-4f1c-a8e0-fefab56accc6 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | vocabulary-mapper@1.0.0 | keywords['earth-science'] |
| concepts[field].local:field:engineering | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /notes |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| title | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /title |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 |