SIR-C_PRECISION_Not provided

Spaceborne Imaging Radar-C Precision

Version Not provided eng
  • Abstract
    Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) is a joint project of the National Aeronautics and Space Administration (NASA), the German Space Agency, Deutsche Agentur fur Raumfahrtangfelegenheiten (DARA), and the Italian Space Agency, Agenzia Spaziale Italiana (ASI). An imaging radar system launched aboard the NASA Space Shuttle twice in 1994, SIR-C/X-SAR's unique contributions to Earth observation and monitoring are its capability to measure, from space, the radar signature of the surface at three different wavelengths and to make measurements for different polarizations at two of those wavelengths. The SIR-C image data help scientists understand the physics behind some of the phenomena seen in radar images at just one wavelength/polarization, such as those produced by SeaSAT. Investigators on the SIR-C/X-SAR Science team use the radar image data to make measurements of vegetation type, extent and deforestation, soil moisture content, ocean dynamics, wave and surface wind speeds and directions, volcanism and tectonic activity, and soil erosion and desertification. The SIR-C provides multi-frequency, multi-polarization radar data.The SIR-C instrument is composed of several subsystems: an antenna array, a transmitter, receivers, a data-handling subsystem, and a ground SAR processor. The data are processed into images with selectable resolution from 10 to 200 meters. The width of the area mapped by the radar varies from 15 to 90 kilometers, depending on how the radar is operated and on the direction in which the antenna beams are pointing. Data from SIR-C/X-SAR are used to develop automatic techniques for extracting information from radar image data.

Data Identification Fields:

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    Processing Level

    Not provided

    Quality
    Collection Progress

    Complete

    Use Constraints
    There is no guarantee of warranty concerning the accuracy of these data. Users should be aware that temporal changes may have occurred since the data was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data set is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data set, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey. Please refer to http://www.usgs.gov/privacy.html for the USGS disclaimer.
    Access Constraints

    None

    Publication References
    • Publication reference title not provided
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Related URLs
    Science Keywords
    • EARTH SCIENCE
    • BIOSPHERE
    • VEGETATION
    • FOREST COMPOSITION/VEGETATION STRUCTURE
    • EARTH SCIENCE
    • BIOSPHERE
    • VEGETATION
    • LEAF CHARACTERISTICS
    • EARTH SCIENCE
    • LAND SURFACE
    • SOILS
    • SOIL MOISTURE/WATER CONTENT
    • EARTH SCIENCE
    • LAND SURFACE
    • TOPOGRAPHY
    • SURFACE ROUGHNESS
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • RADAR
    • RADAR BACKSCATTER
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • RADAR
    • RADAR CROSS-SECTION
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • RADAR
    • RADAR IMAGERY
Other Descriptive Keywords
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Ancillary Keywords
  • NASA/ESIP > NASA Earth Science Information Partners Program
  • DAAC
  • DIELECTRIC CONSTANT
  • USGS/EROS
  • LP DAAC
  • EOSDIS
  • NASA
  • PRECISION
  • SAR
  • SEASAT
  • SIR-C
  • SIR-C/X-SAR
  • SURVEY
  • USGS
ISO Topic Categories
  • BIOTA
  • ELEVATION
  • GEOSCIENTIFIC INFORMATION
  • IMAGERY/BASE MAPS/EARTH COVER
Additional Attributes
  • metadata.uuid
    STRING
    Not provided
    Resolution Range Begin Range End Unit of Measure Accuracy

  • metadata.extraction_date
    STRING
    Not provided
    Resolution Range Begin Range End Unit of Measure Accuracy

  • metadata.keyword_version
    FLOAT
    Not provided
    Resolution Range Begin Range End Unit of Measure Accuracy

Acquisition Information Fields:

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Platforms
  • SPACE SHUTTLES
    Instruments
    • SAR
    • SIR-C
Projects
Project Short Name Campaigns Project Dates
EOSDIS No campaigns listed. No dates provided.

Temporal Information Fields:

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Spatial Information Fields:

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    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL CARTESIAN NO_SPATIAL
Location Keywords
    • GEOGRAPHIC REGION
    • GLOBAL

Data Centers

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  • USGS/EROS
    ORIGINATOR

    This data center does not have any addresses listed.

    This data center does not have any contact mechanisms listed.

  • DOI/USGS/EROS
    Multiple Roles

    ARCHIVER

    DISTRIBUTOR

    Earth Resources Observation and Science Center, U.S. Geological Survey, U.S. Department of the Interior

    This data center does not have any addresses listed.

    This data center does not have any contact mechanisms listed.

Data Contacts

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  • Technical Contact
    EROS CENTER

    LTA Customer Services
    U.S. Geological Survey
    EROS Center
    Sioux Falls, SD 57198-0001

    • Email
    • 605-594-6589
    • 605-594-6151, 800-252-4547
  • Data Center Contact
    EROS CENTER

    DOI/USGS/EROS

    LTA Customer Services
    U.S. Geological Survey
    EROS Center
    Sioux Falls, SD 57198-0001

    • Email
    • 605-594-6589
    • 605-594-6151, 800-252-4547

Collection Citations Fields:

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