Spaceborne Imaging Radar

Spaceborne radar image of UnzenTaken from Space Shuttle, April 15, 1994

The Spaceborne Imaging Radar (SIR) - full name 'Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR)', is a Synthetic Aperture Radar which was launched from the Space Shuttle Endeavour in April (STS-59) and October (STS-68) of 1994. The radar was run by NASA's Space Radar Laboratory. SIR utilizes 3 radar frequencies: L band (24 cm wavelength), C band (6 cm) and X band (3 cm), allowing for study of geology, hydrology, ecology and oceanography. Comparing radar images to data collected by teams of people on the ground as well as aircraft and ships using simultaneous measurements of vegetation, soil moisture, sea state, snow and weather conditions during each flight.

单词	Spaceborne Imaging Radar
释义	Spaceborne Imaging Radar 英语百科 Spaceborne Imaging Radar The Spaceborne Imaging Radar (SIR) - full name 'Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR)', is a Synthetic Aperture Radar which was launched from the Space Shuttle Endeavour in April (STS-59) and October (STS-68) of 1994. The radar was run by NASA's Space Radar Laboratory. SIR utilizes 3 radar frequencies: L band (24 cm wavelength), C band (6 cm) and X band (3 cm), allowing for study of geology, hydrology, ecology and oceanography. Comparing radar images to data collected by teams of people on the ground as well as aircraft and ships using simultaneous measurements of vegetation, soil moisture, sea state, snow and weather conditions during each flight.
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