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Nile River Fluctuations Near Khartoum, Sudan
Throughout history, the rising and falling waters of the mighty NileRiver have directly impacted the lives of the people who live along itsbanks. These images of the area around Sudan’s capital city of Khartoumcapture the river’s dynamic nature. Acquired by…
Vanishing Marshes of Mesopotamia
Landsat satellite imagery reveals that in the last 10 years, wetlandsthat once covered as much as 20,000 square km (7,725 square miles) inparts of Iraq and Iran have been reduced to about 15 percent of theiroriginal size. Through the damming…
Life on the Brink
Data demonstrate that populations cluster–in increasingly greater numbers–near active volcanoes. Scientists theorize that while attractions offset perceived risks, such willingness to chance eruptions increases the potential for disaster.
New Fires in Montana, Wyoming, and Idaho
Clear skies over a large portion of the North American West reveal smoke from forest fires burning in the region. This true-color Moderate-resolution Imaging Spectroradiometer (MODIS) image centered on Montana and Wyoming shows active fires burning in several states.In Montana,…
Summer in the Arctic National Wildlife Refuge
This colorful image of the Arctic National Wildlife Refuge and theBeaufort Sea was acquired by the Multi-angle Imaging SpectroRadiometer’snadir (vertical-viewing) camera on August 16, 2000. The swirling patterns apparent on the Beaufort Sea are small icefloes driven by turbulent water…
Elephant damage to vegetation in Botswana
At the junction of the Chobe and Zambezi Rivers, Botswana, increasing elephant populations are having large impacts on local vegetation. Scientists working in the region used spectral analysis of an astronaut photograph digitized from film to identify areas where woodland…
“Rebirth” Island Joins the Mainland
The images above, collected by the Moderate-resolution Imaging Spectroradiometer (MODIS) flying aboard NASA’s Terra satellite, show how the Aral Sea has changed over the last year (from June 9, 2000, to June 3, 2001).
Deforestation and fires in Para, Brazil
This true-color MODIS image highlights the increasing environmentalpressures on South America’s Amazon River basin. The area shown is partof the Brazilian state of Pará. In the far upper right corner is thereservoir created by the Tucuruí Dam on the Tocantins…
Significant Event Report for Week Ending 8/24/2001
Cassini Significant Event Report For Week Ending 08/24/01 The most recent spacecraft telemetry was acquired from the Goldstone tracking station on Wednesday, August 22. The Cassini spacecraft is in an excellent state of health and is operating normally. Information on…
Typhoon Pabuk
With sustained winds of 108 km per hour (67 mph) and gusts of up to 182 km per hour (113 mph), Typhoon Pabuk slammed into Japan yesterday (August 21, 2001) leaving at least two people dead and forcing thousands to…
Cloud Height and Wind Speed
Scientists for the first time ever can simultaneously measure the heightand motion of clouds over Earth from pole to pole, which may improveweather forecasts. Never before have researchers directly measured cloud heights from asingle satellite, simultaneously measured cloud heights and…
Widespread Fires in the Pacific Northwest
The U.S. Forest Service and National Interagency Fire Center used a new tool to help monitor active wildfires across the entire United States and decide how to best combat them.
Nasca Lines, Peru
This Advanced Spaceborne Thermal Emission and Reflection Radiometer(ASTER) image, cropped from a full scene, covers an area of 14 x 18 km.ASTER, an instrument aboard NASA’s Terra satellite, acquired the image on December 22, 2000. Visible andinfrared spectral bands were…
Klamath Basin, California-Oregon
The Klamath Basin, on the California-Oregon border, had been in the news because of water shortages due to the drought in the United States’ Pacific Northwest. Diverse interest groups have come into conflict over the limited availability of Klamath Project…
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