Start Date: End Date: Published Date Data Date
Canadas Maritime Provinces
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Published March 21, 2001
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Hardangerfjord, Norway
Published March 20, 2001
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A Multi-spectral Look at El Reno, Oklahoma
Published March 19, 2001
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Estevan Coalfield and Power Plants, Saskatchewan
Published March 18, 2001
Snow and ice serve to accent human activities in this photograph taken by the Space Shuttle mission STS-98 crewmembers on February 17, 2001. The Souris River stretches across the photograph from left to right, with the upstream Rafferty Dam Reservoir frozen over on the far left. Two power plants, the Boundary Dam Power Station and the Shand Power Station, can be identified by the smoke plumes and shadows of those plumes. The river is frozen over upstream of the Boundary Dam Power Station, but thermal loading from the plants has warmed the water in the Boundary Dam Reservoir so that it remains nearly ice free. Downstream of the reservoirs, thermal loading is sufficient to maintain open flow in the Souris River.
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NASA Satellite Tracks Hazardous Smoke and Smog Partnership
Published March 17, 2001
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Mississippi River Sediment Plume
Published March 16, 2001
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Swirls of Lace
Published March 15, 2001
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Fringing Reef, Mayotte
Published March 14, 2001
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Africa’s Disappearing Lake Chad
Published March 13, 2001
Lake Chad as seen from Apollo-7 in 1968
Published March 12, 2001
The top photograph was taken by Apollo-7 crew in October 1968 during a mission to test control of a spacecraft moving into different orbits. Based on photographs from Gemini and Apollo, the estimated open water area of Lake Chad was over 22,000 km² (Mohler et al. 1989, Lullaet et al. 1991). Although not known at the time, Lake Chad would not be observed this full again from orbit—it had significantly decreased in area when it was observed by Landsat in 1972. Space Shuttle crews have continued to photograph dramatic fluctuations in Lake Chad. A sampling of this time series from 1982-2000 is shown below the Apollo image.
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Flooded Zambeze River
Published March 11, 2001
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Cyclone Dera in the Mozambique Channel
Published March 10, 2001
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