1999 EARTH SCIENCE VIDEOTAPES |
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Tape Title | Record ID | Date Produced | TRT: |
Synopsis |
| LANDSAT: AN EARTH SCIENCE SUCCESS STORY | G99-101 | 12/10/99 | 00:16:28 | The final in a unique series of Earth observing satellites is hard at work cataloguing and analyzing the land surface of the planet it orbits. From an altitude of 438 miles, Landsat 7 is able to see features as small as 15 meters, providing worldwide land resource information for a diverse range of uses. The satellite is part of a global research effort called the Earth Science Enterprise, which seeks to acquire a long term understanding of the changes to our planet.
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TAPE CONTENTS: |
| ITEM (1): CITIES FROM SPACE - In the following collection of cities seen from space, notice how clearly Landsat 7's highly sensitive Extended Thematic Mapper Plus is able to resolve features like roads, buildings and natural features. The cities shown are San Francisco, Rome, Paris, and New York. Prior to the San Francisco fly-over, we show you how Landsat's sensors break down light into various bands of sensitivity, and how those bands might be assembled to provide different views of a given area.
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| ITEM (2): SEDIMENTATION ALONG THE COAST: LANDSAT - The devastating floods in North Carolina caused by Hurricanes Floyd, Irene, and a series of heavy rain storms highlight Landsat 7's ability to resolve subtle gradations in surface features. Here the satellite captures the massive flow of sedimentation and waste runoff in areas most affected by flooding. Notice the dark coloration in the engorged waterways, indicating heavy concentrations of organic material that's been washed into the water system.
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| ITEM (3): BOLIVIAN DEFORESTATION -This time lapse series of images comes from Landsat 7's predecessor, Landsat 5. Over a period of ten years, the satellite's sensors measured the growing patterns of regional clear cutting across wide tracts of South American forest.
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| ITEM (4): LANDSAT 7 NATIONAL TOUR OF GRAND SPACES - Recent visualizations generated from Landsat 7 data depict a number of U.S. national parks and other prominent locations in spectacular detail. The images displayed here are overlaid on terrain maps, showing peaks, valleys, water, and human made structures as viewed from space.
A.) Death Valley
B.) Mt. St. Helens (two views)
C.) Yellowstone
D.) Yosemite
E.) The Everglades
F.) Pacific Peaks (A virtual tour of the Pacific Northwest mountains, ending in Seattle)
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| ITEM (5): SPACECRAFT ASSEMBLY, LAUNCH, AND ANIMATIONS - Landsat 7 is the final in a series of satellites. It roared into orbit aboard a Boeing Delta II rocket, launched on April 15, 1999 from Vandenberg Air Force Base in California. Managed and developed by NASA's Goddard Space Flight Center, Lockheed Martin constructed Landsat 7 at their facility in Valley Forge, Pennsylvania. Data is available to researchers through a browsable internet interface, and can be delivered at a relatively low cost to users.
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