Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) Imagary from NASA/JPL

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: NASA/JPL
Publication_Date: Unknown
Title: Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) Imagary from NASA/JPL
Edition:
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Series_Information:
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Online_Linkage: http://southport.jpl.nasa.gov/
Description:
Abstract:
The Space Radar Laboratory-1 (SRL-1) was a payload launched with the Space Shuttle &Endeavor& (STS-59) on April 9, 1994. The SRL-1 comprises two elements: a suite of radar instruments called the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR), and the Measurement of Air Pollution from Satellite (MAPS) instrument. The SIR-C/X-SAR radar was jointly developed by NASA with DARA of Germany and ASI of Italy. The SIR-C/X-SAR instrument consists of 3 bands: C-Band (0.235 m), L-Band (0.058 m), and X-Band (0.031 m). Typical resoultion was 30 x 30 meters. The Space Radar Laboratory-2 (SRL-2) was launched with the Space Shuttle &Endeavor& (STS-68) on September 30, 1994. As with SRL-1, SRL-2 consists of the SIR-C/X-SAR radar instruments and the MAPS instrument. Images obtained from the SIR-C/X-SAR are available from the NASA JPL Imaging Radar Page: http://www.jpl.nasa.gov/radar/sircxsar/ and http://southport.jpl.nasa.gov/ The objectives of the SIR-C/X-SAR were to provide information about the Earth's land surfaces including vegetation coverage, snow pack extent, wetlands, geologic features, volcanic processes, ocean wave heights and wind speeds over the oceans. The most useful feature of imaging radar is its ability to make measurements over any region at any time regardless of weather or sunlight. The SIR-C/X-SAR is a synthetic aperture radar that transmits pulses of microwave energy from the Shuttle toward Earth and measures the strength and time delay of the energy scattered back to the SIR-C/X-SAR antenna. The motion of the Shuttle between the transmission of the beam and the reception of the backscattered radiation is used to &synthesize& or create an antenna (aperture) much longer than the actual antenna. This results in finer resolution images. The SIR-C/X-SAR scientific team has identified more than 400 sites where data was taken. Nineteen of the sites are designated &supersites&, making them priority targets for scientific investigations. There are an additional 15 backup supersites. The supersites were chosen to represent different environments within each scientific discipline. The following are areas of investigation and supersites for the SRL mission: * Ecology: Manaus, Brazil; Raco Mich.; Duke Forest, N.C.; Central Europe. Radar images will be used to study land use, vegetation extent, effects of fires, floods, and clear-cutting, soil moisture, forest dynamics. * Hydrology: Chickasha, OK; Otztal, Austria; Bebedouro, Brazil; Montespertoli, Italy Radar images will be used to study snow cover, wetlands, and soil moisture patterns. * Oceanography: Gulf Stream, Northeast Atlantic Ocean; Southern Ocean Radar images to study surface and internal waves, oceanic wind speed, and currents. * Geology: Galapagos Islands; Sahara Desert; Death Valley, CA; Andes Mountains, Chile; Mount Pinatubo Radar imagery to map geologic structures, areas of erosion and volcanic activity, paleoclimatic sites in arid regions, geologic evidence of past climate changes, surface roughness.
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19940409
Ending_Date: 19940420
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19940920
Ending_Date: 19941011
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -180.0
East_Bounding_Coordinate: 180.0
North_Bounding_Coordinate: 70.0
South_Bounding_Coordinate: -70.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > RADAR > RADAR IMAGERY
Theme_Keyword: SPACE SHUTTLES
Theme_Keyword: SRL-1 > SPACE RADAR LABORATORY-1
Theme_Keyword: SRL-2 > SPACE RADAR LABORATORY-2
Theme_Keyword: STS-59 > SPACE TRANSPORT SYSTEM STS-59
Theme_Keyword: STS-68 > SPACE TRANSPORT SYSTEM STS-68
Theme_Keyword: SAR > SYNTHETIC APERTURE RADAR
Theme_Keyword: SIR-C > SPACEBORNE IMAGING RADAR-C
Theme_Keyword: X-SAR > X-BAND SYNTHETIC APERTURE RADAR
Theme_Keyword: Biomass
Theme_Keyword: Images
Theme_Keyword: Land Cover
Theme_Keyword: Radar
Theme_Keyword: Vegetation
Theme_Keyword: IMAGERY/BASE MAPS/EARTH COVER
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: GEOGRAPHIC REGION > GLOBAL
Access_Constraints: Not Available
Use_Constraints:
Not Available
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NASA/JPL/RDC > Radar Data and Outreach Center, Jet Propulsion Laboratory, NASA
Contact_Person: ANNIE H. RICHARDSON
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Jet Propulsion Laboratory
Address: Radar Data and Outreach Center
Address: MS 300-233
Address: 4800 Oak Grove Drive
City: Pasadena
State_or_Province: CA
Postal_Code: 91109
Country: USA
Contact_Voice_Telephone: 818-354-2386
Contact_Facsimile_Telephone: 818-393-2640
Contact_Electronic_Mail_Address: Annie.H.Richardson@jpl.nasa.gov
Resource_Description: SIRC_XSAR
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://southport.jpl.nasa.gov/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://southport.jpl.nasa.gov/
Access_Instructions:
SIR-C radar data sets
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date:
Metadata_Review_Date: 20080602
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GENE R. MAJOR
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Contact_Electronic_Mail_Address: gsfc-gcmduso@mail.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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