Datasets Available from ASF DAAC

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    Table 1: Unrestricted SAR Datasets

    These data are freely available and may be downloaded by anybody with an Earthdata Login username and password.

    Dataset NameSensor PlatformMission DatesFind DataUsage ExamplesSpatial Coverage
    ALOS PALSARSatellite2006 - 2011Vertex Data SearchASF Search APIBroad 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-1Satellite2014 - PresentVertex Data SearchASF Search APIBroad applications: volcanoes, earthquakes, glaciers, land subsidence, sea ice, flooding, oceans, and moreGlobal
    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)
    UAVSARAircraft2008 - PresentVertex Data SearchASF Search APISelect locations: oil spills, earthquakes, volcanoes, oceans, land cover, and moreTargeted 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-1Satellite1991 - 1997Vertex Data SearchASF Search APIPolar 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-2Satellite1995 - 2011Vertex Data SearchASF Search APIPolar 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
    AIRSARAircraft1990 - 2004Vertex Data SearchASF Search APISelect locations: oceans, coasts, forest ecology, geology, hydrology, earthquakes, archeaology, and moreSelected 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
    SeasatSatellite1978Vertex Data SearchASF Search APIPortions 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
    SMAPSatellite2015 (3 months)Vertex Data SearchASF Search APISoil moisture and freeze/thaw state (detailed data from 3 months in 2015). Benchmark data for flood, landslide, and drought monitoring; agricultural planning; and climate forecastingGlobal
    SAR Sensor: L-band
    Repeat Cycle: 3 days
    Products: L1A_Radar, L1B_S0_LoRes, L1C_S0_HiRes, L1A receive only

    Table 2: Restricted SAR Datasets

    Permission to access and download these data requires that a user must 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 NameSensor PlatformMission DatesFind DataUsage ExamplesSpatial Coverage
    JERS-1Satellite1992 - 1988Vertex Data SearchASF Search APIImportant 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-1Satellite1995 - 2008Vertex Data SearchASF Search APIArctic 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

    Table 3: Derived SAR Datasets

    These higher-level datasets were created using ASF SAR data.

    Dataset NameSensor PlatformMission DatesFind DataUsage ExamplesSpatial Coverage
    RAMP
    RADARSAT-1 Antarctic Mapping Mission
    Satellite1997 and 2000ASF WebsiteHistoric, 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 MosaicsSatellite2004 and 2007ASF WebsiteAntarctic 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 MEaSUREsSatellite1995 - 2012ASF WebsiteArctic 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 EcologySatellite2007 - 2010ASF WebsiteEcological research.Select sites in Western Hemisphere
    SAR Sensor: L-band
    Products: GeoTIFFimetric images
    Wetlands MEaSUREsSatellite1993 - 2009ASF WebsiteWetlands 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

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