Imaging · collection · 2026
Seasat Level 1 Synthetic Aperture Radar Products
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/lz2d3z6bw3gh
Launched by NASA in 1978, the Seasat satellite’s primary mission was to observe oceans using NASA’s first synthetic aperture radar (SAR) sensor.
Description
Seasat was not equipped with an onboard recorder, so in order to collect data during the mission, three U.S. and two international ground stations downlinked data from the satellite in real time: Fairbanks, Alaska; Goldstone, California; Merritt Island, Florida; Shoe Cove, Newfoundland; and Oakhanger, United Kingdom.
Originally, Seasat SAR data were optically processed into survey data products available on 70 mm film. Approximately 10 percent of the total Seasat SAR dataset was digitally processed by the Jet Propulsion Laboratory (JPL) from 1978 to 1982. In 2013, the Alaska Satellite Facility DAAC processed and created a digital archive of focused SAR products from data collected by Seasat.
Read the rest (1 more)
Starting with raw signal data on tapes, the Seasat data were successively (1) captured to disk, (2) validated and byte-aligned, (3) decoded, (4) cleaned of bit errors and discontinuities, (5) focused into single look complex imagery, (6) processed into georeferenced ground range products. The products created are available in this collection in both HDF-5 and GeoTiff format.
Links
Get the data
- PDF webdocs.asf.alaska.edu/Seasat/Seasat-User-Guide-History-and-Technical-Challenges.pdf ↗
This document serves as product guide for users of Seasat products processed by the Alaska Satellite Facility.
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3576379529-ASF.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C3576379529-ASF ↗
Search and download data granules using NASA Earthdata Search interface.
download · from NASA CMR
- JPEG cumulus.asf.earthdatacloud.nasa.gov/BROWSE/SEASAT/SS_01494_STD_F2423/SS_01494_STD_F2423.jpg ↗
download · preview image · from data nasa gov, NASA CMR
- search.asf.alaska.edu ↗
Search and download data granules using the ASF Data Search graphical search interface Vertex.
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/seasat-level-1-synthetic-aperture-radar-products ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/lz2d3z6bw3gh ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3576379529-ASF.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=63340d4e-9c1f-4c69-b3c3-9056c7125… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3576379529-ASF.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Forests · Geomorphic Landforms/Processes · Ocean Dynamics Satellite · Ocean Waves · Ocean Winds · Sea Ice · Sea Surface Topography · Synthetic Aperture Radar
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Provenance · 2 source records, 21 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3576379529-ASF | 8 d ago | JSON v1 |
| NASA Data Portal | 63340d4e-9c1f-4c69-b3c3-9056c71254ee | 5 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:sar | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/ecosystems/terrestrial-ecosystems/forests | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/geomorphic-landforms-processes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-waves | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-winds | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/sea-ice | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/sea-surface-topography | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:seasat-1 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| 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 | |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |