학술논문

Seasat—A 25-year legacy of success
Document Type
Article
Source
Remote Sensing of Environment. Feb2005, Vol. 94 Issue 3, p384-404. 21p.
Subject
*TELECOMMUNICATION satellites
*WIND speed
*EARTH sciences
*ENVIRONMENTAL sciences
Language
ISSN
0034-4257
Abstract
Abstract: Thousands of scientific publications and dozens of textbooks include data from instruments derived from NASA''s Seasat. The Seasat mission was launched on June 26, 1978, on an Atlas-Agena rocket from Vandenberg Air Force Base. It was the first Earth-orbiting satellite to carry four complementary microwave experiments—the Radar Altimeter (ALT) to measure ocean surface topography by measuring spacecraft altitude above the ocean surface; the Seasat-A Satellite Scatterometer (SASS), to measure wind speed and direction over the ocean; the Scanning Multichannel Microwave Radiometer (SMMR) to measure surface wind speed, ocean surface temperature, atmospheric water vapor content, rain rate, and ice coverage; and the Synthetic Aperture Radar (SAR), to image the ocean surface, polar ice caps, and coastal regions. While originally designed for remote sensing of the Earth''s oceans, the legacy of Seasat has had a profound impact in many other areas including solid earth science, hydrology, ecology and planetary science. [Copyright &y& Elsevier]