The data set consists of all ERS-1 SAR data acquired by the Alaska Satellite Facility (ASF) operated by the Geophysical Institute of the University of Alaska in Fairbanks. Only data within the station mask of ASF, approximated by a 3000 km radius circle centered on Fairbanks, is acquired.
Available products include:
Full-res images are 4-look SAR images with 30 m resolution and 12.5 m
pixel spacing over a 100 km x 100 km area. These are 8192 pixel x
8192 pixel x 8 bit (64MB) images. The data is corrected to the
GEM06 geoid model.
Lo-res images are produced by 8 x 8 averaging the full-res data. The
resulting image is 1024 pixels x 1024 pixels x 8 bits (1 MB).
Complex images, are 1-look data with approximately 10 m resolution covering an area of 30km x 50 km. Data is formatted as 12,888 pixel x 2048 pixel x 32 bit complex integers (16I, 16Q-about 100MB). The data contains backscatter amplitude and phase useful for interferometry studies of topography and feature motion.
Approval by NASA or ESA is required to obtain the data. Please contact ASF user services to become a NASA approved investigator.
Theme_Keyword: ERS-1 > EUROPEAN REMOTE SENSING SATELLITE-1
Theme_Keyword: SAR > SYNTHETIC APERTURE RADAR
Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM
Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
Theme_Keyword: Asf Daac
Theme_Keyword: Daac
Theme_Keyword: Eosdis
Theme_Keyword: Global Change
Theme_Keyword: Idn_node Gsfc/asf
Theme_Keyword: Sar Daac
Theme_Keyword: Sar Data
Theme_Keyword: BIOTA
Theme_Keyword: ELEVATION
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: IMAGERY/BASE MAPS/EARTH COVER
Theme_Keyword: INLAND WATERS
Theme_Keyword: OCEANS
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: OCEAN > ARCTIC OCEAN
Place_Keyword: OCEAN > PACIFIC OCEAN
Place_Keyword: CONTINENT > NORTH AMERICA
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints:
ERS-1 SAR data access is restricted to investigators approved by NASA or ESA. To become an approved user, please submit a short proposal to NASA. Guidelines for the proposal and submission instructions can be found at http://www.asf.alaska.edu/.
