ASF DAAC Data
About ASF DAAC Data
The ASF DAAC has a large archive of synthetic aperture radar (SAR) data from a variety of sensors, available at no cost. Some of the SAR datasets in the ASF DAAC archive require a short NASA proposal for access. In accordance with the memoranda of understanding (MOU) between the relevant flight agencies (CSA, ESA, JAXA) and the U.S. State Department, the ASF DAAC does not distribute SAR data for commercial use.
Sentinel-1, ALOS PALSAR and other SAR data are open access and immediately downloadable from ASF's Vertex interface, or from the ASF website. ERS-1, ERS-2, JERS and RADARSAT-1 datasets have been acquired in partnership with other nations' space programs. Those datasets require data proposals or preconditions. In addition, some datasets have residency requirements. For more information see the Get Started guide.