Types of Synthetic Aperture Radar (SAR) Products at ASF

ASF product types and processing levels

The following table displays all product types and their processing levels available at the Alaska Satellite Facility DAAC.

Processing TypeProcessing LevelImage TypeProduct DescriptionOpen-source softwareCommercial software
Raw DataL0, L1.0, RAWUnfocusedUnprocessed signal data. Requires a SAR processor to be visualized.ISCEENVI SARscape
GAMMA
Single Look Complex (SLC)L1.1, SLCFocused (single look); has speckleContains amplitude and phase values. Retains slant-range geometry.ASF HyP3
Sentinel-1 Toolbox
PolSARpro
ENVI SARscape
GAMMA
AmplitudeL1, L1.5, GRD (Ground Range Detected)Focused (multilooked); reduced speckleCan be visualized. Contains amplitude values only. Retains slant-range geometry. Projected to ground range coordinates.ASF HyP3
Sentinel-1 Toolbox
ASF MapReady
ENVI SARscape
GAMMA
Corrected amplitudeGeoTIFFGIS-compatibleImage has had georeferencing applied.QGISArcGIS
Corrected amplitudeRadiometric Terrain Correction (RTC)GIS-compatibleImage has had radiometric and terrain correction applied.QGISArcGIS

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