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Mount Kilimanjaro Closeup
Published August 2, 2004
Most scientists agree that the glaciers of Mt. Kilimanjaro will be gone by the year 2020, but there is less agreement as to why they are now receding.
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Ebro River Delta, Northeastern Spain
Published July 26, 2004
The Ebro River Delta, located along the eastern coast of Spain, is one of the largest wetland areas in the western Mediterranean region.
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Tucson, Arizona
Published July 19, 2004
Tucson lies between the forested Catalina Mountains and the Tucson Mountains (dark reddish brown at the left image margin).The typical western North American cityscape is a pattern of regular north-south aligned rectangles outlined by major streets set one mile apart.
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Pearl Harbor, Hawaii
Published July 12, 2004
Located on the highly populated Hawaiian island of Oahu just west of Honolulu, Pearl Harbor is the historic center of events on “the day that will live in infamy”—December 7, 1941—when the Japanese fleet launched a surprise air attack on Pearl Harbor and other strategic military targets on Oahu. The ISS-6 Space Station crew obtained this high-resolution image of Pearl Harbor in March 2003, enabling detailed observations of the harbor and its multiple uses.
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Barcelona, Spain
Published July 5, 2004
The roofs of Barcelona’s buildings appear as a widespread pink swath on the Mediterranean coastal plain, between forested hills (dark green, top) and the sea. The Llobregat River enters the view top center, cuts through a canyon in the hills and historically constructed a broad, convex delta south of the forested hills. Channelization of the Llobregat River to control flooding has encouraged development of the delta for a variety of urban and agricultural land uses. Barcelona’s airport is located in the central portion of the delta, while the western portion is used for intensive agriculture (light green areas).
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Colorado River Delta, Baja California
Published June 28, 2004
The Colorado River is the largest watershed in the southwestern US, emptying into the Salton Trough before reaching the Sea of Cortez. Over the past 2-3 million years, river sediments built a delta that extends from the US-Mexico border for a distance of 87 miles (140 kilometers). However, today the Colorado River delta is undergoing significant erosion and diminishing in size due to the lack of sediment replenishment from upstream sources.
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Solitons, Strait of Gibraltar
Published June 21, 2004
Surf’s up! This image is a mosaic of two photographs taken by astronauts aboard the International Space Station viewing large internal waves in the Strait of Gibraltar. These subsurface internal waves occur at depths of about 100 m, but appear in the sunglint as giant swells flowing eastward into the Mediterranean Sea. The narrow Strait of Gibraltar is the gatekeeper for water exchange between the Atlantic Ocean and Mediterranean Sea. A top layer of warm, relatively fresh water from the Atlantic Ocean flows eastward into the Mediterranean Sea. In return, a lower, colder, saltier layer of water flows westward into the North Atlantic ocean. A density boundary separates the layers at about 100 m depth.
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Mount Baker, Washington—a Hazardous Beauty
Published June 14, 2004
The Cascade Range is an arc of volcanoes that extends from southwestern British Columbia to northern California. One of the six major composite volcanoes (formed by alternating layers of extruded lava and compacted ash) is Mount Baker in northern Washington.
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Pinacates Biosphere Reserve
Published June 8, 2004
The Pinacates region of Mexico’s Sonoran Desert is one of the most unique and striking landscapes in North America. Located just a few miles south of the Mexico-Arizona border, this volcanic field originated with the rifting of the Gulf of California millions of years ago, but the features seen today (volcanic peaks, lava flows, cinder cones and collapsed craters) formed in the late Pleistocene period (2 million to 11,000 years ago). The volcanic range is surrounded by one of North America’s largest dune fields, Gran Desierto. Early in May 2004, the new Space Station crew (ISS-9) obtained high-resolution images of the Pinacates, allowing for detailed observations of the surface features. One example is a large volcanic crater (see box, and detail below) called Crater Elegante which is one of the most prominent and interesting features of the Pinacates.
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Alexandria, Egypt
Published May 31, 2004
Founded by Alexander the Great in 331 BC on the Mediterranean coast of Egypt, Alexandria became a center of trade and learning in the ancient world. he Eastern Harbor was the main port in the Middle Ages. This detailed image taken by Space Station crew members using an 800-mm lens provides a view of the modern port facilities in the Western Harbor, where wharves and many moored ships can be detected.
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Greenhouses of the Campo de Dalías, Almería Province, Spain
Published May 24, 2004
The sunny south of Spain offers more to the national economy than simply tourism. Over the past 50 years, the small coastal plain (campo), some 30 kilometers southwest of the city of Almería, has been intensively developed for agriculture. An estimated 20,000 hecatres of extra-early market produce is grown in greenhouses in the Campo de Dalías.
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Mount St. Helens, Washington
Published May 17, 2004
On May 18, 1980, Mount Saint Helens volcano erupted. Because the eruption occurred in an easily accessible region of the U.S., Mount St. Helens has provided unprecedented opportunities for U.S. researchers to collect scientific observations of the geology of an active volcano and document the regional ecological impact and recovery from an eruption.
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