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Unrestricted SAR Datasets
These data are freely available and may be downloaded by anybody with an Earthdata Login username and password.
Dataset Name | Sensor Platform | Mission Dates | Find Data | Usage Examples | Spatial Coverage | |
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ALOS PALSAR | Satellite | 2006 - 2011 | Vertex Data Search | ASF Search API | Broad applications: glaciers, landslides, volcanoes, earthquakes, oil seeps, wetlands, sea ice, and more. | The Americas, Antarctica, select wordwide sites |
SAR Sensor: L-band Repeat Cycle: 46 days Products: L1.0 raw, L1.1 single look complex (SLC), L1.5 Georeferenced amplitude image, Hi-res RTC image, Low-res RTC image | ||||||
Sentinel-1 | Satellite | 2014 - Present | Vertex Data Search | ASF Search API | Broad applications: volcanoes, earthquakes, glaciers, land subsidence, sea ice, flooding, oceans, and more | Global |
SAR Sensor: C-band Repeat Cycle: 12 days Products: L0 raw, L1 single look complex (SLC), L1 ground-range detected mid-res single-pol (GRD-MS), L1 ground-range detected high-res single-pol (GRD-HS), L1 ground-range detected mid-res dual-pol (GRD-MD), L1 ground-range detected high-res dual-pol (GRD-HD), L2 ocean (OCN) | ||||||
UAVSAR | Aircraft | 2008 - Present | Vertex Data Search | ASF Search API | Select locations: oil spills, earthquakes, volcanoes, oceans, land cover, and more | Targeted worldwide sites |
SAR Sensor: L-band Repeat Cycle: Non-applicable Products: Single look complex (SLC), multi-look complex cross products, compress stokes matrix, ground-projected calibrated cross products, DEM | ||||||
ERS-1 | Satellite | 1991 - 1997 | Vertex Data Search | ASF Search API | Polar regions and processes (sea ice, Arctic, Antarctic) | Primarily polar, within station masks of the ASF and McMurdo ground stations |
SAR Sensor: C-band Repeat Cycle: 35 days Products: L0 raw, L1 amplitude image | ||||||
ERS-2 | Satellite | 1995 - 2011 | Vertex Data Search | ASF Search API | Polar regions and processes (sea ice, Arctic, Antarctic) | Primarily polar, within station masks of the ASF and McMurdo ground stations |
SAR Sensor: C-band Repeat Cycle: 35 days Products: L0 raw, L1 amplitude image | ||||||
AIRSAR | Aircraft | 1990 - 2004 | Vertex Data Search | ASF Search API | Select locations: oceans, coasts, forest ecology, geology, hydrology, earthquakes, archeaology, and more | Selected sites worldwide |
SAR Sensor: L-band, P-band, C-band Repeat Cycle: Non-applicable Products: Along-track interferometry, 3-frequency polarimetry, L-Band compressed stokes matrix, P-Band compressed stokes matrix, C-Band DEM and compressed stokes matrix | ||||||
Seasat | Satellite | 1978 | Vertex Data Search | ASF Search API | Portions of northern oceans and land (the first NASA SAR mission; data processed by ASF in 2013) | Regions of Northern Hemisphere, including oceans and N. America |
SAR Sensor: L-band Repeat Cycle: 3 days at launch; 17 days after mid-August Products: L1 image, GeoTIFF | ||||||
SMAP | Satellite | 2015 (3 months) | Vertex Data Search | ASF Search API | Soil moisture and freeze/thaw state (detailed data from 3 months in 2015). Benchmark data for flood, landslide, and drought monitoring; agricultural planning; and climate forecasting | Global |
SAR Sensor: L-band Repeat Cycle: 3 days Products: L1A_Radar, L1B_S0_LoRes, L1C_S0_HiRes, L1A receive only |
Restricted SAR Datasets
Permission to access and download these data requires that a user meet the following conditions:
- The data will be used for non-commercial, research purposes only
- The user is currently living in the United States
A Restricted Data Use Request form must be submitted.
Dataset Name | Sensor Platform | Mission Dates | Find Data | Usage Examples | Spatial Coverage | |
---|---|---|---|---|---|---|
JERS-1 | Satellite | 1992 - 1988 | Vertex Data Search | ASF Search API | Important forests of the world: Southeast Asia, Africa, Central America, South America (Amazon Basin), and boreal North America. | Global |
SAR Sensor: L-band Repeat Cycle: 44 days Products: L0 raw, L1 amplitude image | ||||||
RADARSAT-1 | Satellite | 1995 - 2008 | Vertex Data Search | ASF Search API | Arctic sea ice and other broad applications: volcanoes, ocean winds, ecology, soil moisture, wetlands, flooding, and more. | Global |
SAR Sensor: C-band Repeat Cycle: 24 days Products: L0 raw, L1 amplitude image |
Derived SAR Datasets
These higher-level datasets were created using ASF SAR data.
Dataset Name | Sensor Platform | Mission Dates | Find Data | Usage Examples | Spatial Coverage |
---|---|---|---|---|---|
RAMP RADARSAT-1 Antarctic Mapping Mission | Satellite | 1997 and 2000 | ASF Website | Historic, high-resolution map of Antarctica: ice-sheet morphology, rock outcrops, research infrastructure, coastline, and more. | Antarctica |
SAR Sensor: C-band Products: Tiles, mosaics | |||||
Post-RAMP Antarctic Mosaics | Satellite | 2004 and 2007 | ASF Website | Antarctic ice sheets (emphasis on velocities): Drygalsky Ice Tongue (David Glacier), Thwaites Glacier, and Pine Island Glacier. | Select Antarctic ice sheets |
SAR Sensor: C-band Products: SAR mosaics, glacier velocity files | |||||
Sea Ice MEaSUREs | Satellite | 1995 - 2012 | ASF Website | Arctic Ocean sea ice motion with three-day radar snapshots as the ice goes through dramatic changes over 11 years. | Arctic Ocean |
SAR Sensor: C-band Products: Lagrangian, 3-day gridded, and Eularian data files | |||||
Terrestrial Ecology | Satellite | 2007 - 2010 | ASF Website | Ecological research. | Select sites in Western Hemisphere |
SAR Sensor: L-band Products: GeoTIFFimetric images | |||||
Wetlands MEaSUREs | Satellite | 1993 - 2009 | ASF Website | Wetlands ecology, including their role in climate, biogeochemistry, hydrology, and biodiversity. | Amazon, Alaska, the Americas, global (coarse resolution) |
SAR Sensor: L-band Products: Fine-resolution, 100-meter maps of wetland extent, vegetation type, and seasonal inundation dynamics for continental-scale areas covering crucial wetland regions; global, 10-day mappings of inundation extent at ~25-km resolution; interactive time-series tool and time-series animation; GeoTIFF |
Optical Datasets
These data are freely available and may be downloaded by anybody with an Earthdata Login username and password.
Dataset Name | Sensor Platform | Mission Dates | Find Data | Usage Examples | Spatial Coverage | |
---|---|---|---|---|---|---|
ALOS AVNIR-2 ORI | Satellite | 2006-2011 | Vertex Data Search | ASF Search API | Spatial coverage maps for land and coastal zones; monitoring regional environments | Global |
Sensor: Visible and Near-Infrared Radiometer Repeat Cycle: 46 days Products: 1B1 Ortho Rectified Image |