2004 EARTH SCIENCE VIDEOTAPES |
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Tape Title | Record ID | Date Produced | TRT: |
Synopsis |
| SLEUTH INVESTIGATES DC AREA LAND USE | G04-015 | 3/25/04 | 4:12 | Under current policy and growth trends, developed land in the Baltimore-Washington DC area could increase by 80% by 2030, say NASA-funded researchers who used a computer model loaded with NASA and commercial satellite images to simulate three possible policies affecting land use around the nation's capitol. The USGS model, called SLEUTH, was applied to the Baltimore-DC area, with the aim of simulating impacts of future policy scenarios on the local area and Chesapeake Bay watershed. Such research may help mitigate potentially damaging effects of urban growth and runoff on the Chesapeake Bay estuary system.
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TAPE CONTENTS: |
| ITEM (1): Urban Growth in Baltimore-Washington DC, 1986-2000 - Between 1986 and 2000, developed land in the Baltimore-DC area increased by 39%, from 628,573 acres in 1986 to 1,029,629 acres in 2000. The following visualization shows Landsat data of impervious surfaces in the region highlighted in yellow, orange and red. The first item shows the total change from 1986 to 2000. The second item shows images from 1986, 1990, 1996, and 2000. The SLEUTH model was calibrated using a time series of maps like these that were derived from Landsat 7 ETM+, Landsat 5 TM, and IKONOS satellite imagery.
Courtesy: NASA/USGS
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| ITEM (2): Urban Growth in Baltimore, 1986-2000 - The following visualization shows Landsat data of impervious surfaces in the Baltimore area highlighted in yellow, orange and red. The first item shows the total change from 1986 to 2000. The second item shows images from 1986, 1990, 1996, and 2000. Courtesy: NASA/USGS
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| ITEM (3): Urban Growth in Washington DC, 1986-2000 - The following visualization shows Landsat data of impervious surfaces in the Washington DC area highlighted in yellow, orange and red. The first item shows the total change from 1986 to 2000. The second item shows images from 1986, 1990, 1996, and 2000.
Courtesy: NASA/USGS
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| ITEM (4): Flyover of the Chesapeake Bay Watershed - The following visualization is a flying tour of the Chesapeake Bay region. The visualization was created using data from Landsat and the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on NASA's Terra and Aqua satellites.
Courtesy: NASA/USGS
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