Home  About Us   Staff Directory   Supported Satellites   Receiving Grnd Statn  About SAR   Data Calibration   Overview   Corner Reflectors   Internships   Data Anomalies   Data Quality Docs   Contact Us   SAR FAQ  SAR Data Products   Get Data   Unrestricted Data   Standard Data   RGPS Data   RGPS Products   RAMP Data  SAR Software Tools   Download Tools   Convert   Open Source   Restricted   Sarview   XID   Release Updates   Tutorials  Special Projects  User Services   New User Info   Proposal Guidelines   Science Questions   Data Policy   Products & Prices   Request Forms   Unrestricted Data   Test/Sample Data   Data Credits   Citation Rules  Education/Outreach   ASF Seminars   Glacier Power     Ends of the Earth  Job Opportunities  SAR Bibliography   Bibliographic Data   ASF Reference Docs  ASF Publications   ASF Newsletter   User Bulletin   AADN / ALOS   UPASS About SAR Home > About SAR     Alaska Satellite Facility, Geophysical Institute, University of Alaska Fairbanks         SAR is the only satellite imagery that can be acquired at any time of the day or night and during adverse weather conditions. Available SAR products include: full-resolution (25 m) images; low-resolution (240 m) images; complex-format SAR data products which retain amplitude and phase information; geocoded images; and uncorrelated (raw signal) SAR data, representing the original backscattered radar signals.     SAR FAQ     Getting started with SAR? Start here to get a handle on the basics.   InSAR - Interferometric Synthetic Aperture Radar   One of the fastest growing fields in the Earth science and remote sensing arenas.   AIRSAR - Airborne Synthetic Aperture Radar   All weather SAR imaging system operated from a DC-8 jet. Capable of collecting fully polarimetric imagery at three separate frequency bands   RADARSAT-1 Coverage Reports   RADARSAT-1 regularly images the Arctic Basin using ScanSAR Wide B. Most of these acquisitions are available in the ASF archive. If you are interested in this data and other acquisitions for the Arctic Ocean, please search the ASF archive at EDG.   Scientific SAR User's Guide   This document is intended to provide an introduction and background to scientists wishing to interpret SAR image data. The coverage is necessarily brief but thorough references and citations are provided for the user who wishes to pursue the subject in greater depth.   Station Masks   As a satellite's SAR instrument images the earth, the data can be down-linked to a receiving ground station or recorded on an on-board recorder. The area of reception for a ground station is called the "mask". The station masks supported by ASF for Radarsat-1 are graphically depicted below.   ASF station mask McMURDO station mask RADARSAT-1 station masks available to ASF users POLAR station masks ASIA station masks EUROPEAN station masks North American & Caribbean station masks Tromsø station mask West Freugh station mask Miami station mask Gatineau station mask Prince Albert station mask     Data Calibration   ASF’s Quality Assurance Group can help you will find information about the data calibration efforts we have completed, are working on now, and plan to begin in the future.