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Sept-îles, Gulf of St Lawrence, Quebec, Canada
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Published June 27, 2005
Seven Island Bay (left side of the image) is one of the largest and best-protected harbors on Quebec’s north shore of the Gulf of St. Lawrence. Because this is both a deep-water port and ice-free year round, Sept-Îles is one of Quebec’s busiest ports. Locally produced materials (iron ore, alumina) comprise the bulk of port traffic, but Sept-Îles also acts as a trans-shipment point for goods moving to Europe, the Far East, and South America.
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Port of Rotterdam, Netherlands
Published June 20, 2005
The Port of Rotterdam, also known as Europoort (Eurogate), has been an important trading center since approximately AD 1250. The history of the port reflects the evolution of the world’s economic base. Originally serving the North Sea herring fleets, it rapidly grew into a major mercantile port during the Dutch colonial period. The 19th century witnessed the Industrial Revolution, and steel and coal became major commodities passing through the port. Following the development of petroleum as a primary energy resource in the early 20th century, the port expanded westward to accommodate storage facilities and large oil tankers.
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Fire Scars in Australia’s Simpson Desert
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Published June 13, 2005
Bright orange fire scars show up the underlying dune sand in the Simpson Desert, 300 kilometers east of Alice Springs, in this astronaut photograph taken from the International Space Station in November, 2003. The fire scars were produced in a recent fire, probably during the same year. The image suggests a time sequence of events. Fires first advanced into the view from the lower left—parallel with the major dune trend and dominant wind direction. Then the wind shifted direction by about 90 degrees so that fires advanced across the dunes in a series of frond-like tendrils.
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Ural River Delta, Kazakhstan
Published June 6, 2005
The Ural River is one of the two major rivers (the other is the Volga) that empty into the northern coast of the Caspian Sea, creating extensive wetlands. This image shows details of the Ural’s tree-like (or “digitate”) delta. This type of delta forms naturally when wave action is low, and sediment content in the river is high. New distributary channels form in the delta when the river breaches natural levees created by sediment deposition. The long main channel of the river in this image and several of the distibutary channels are too regular to be entirely natural, however. Like the famous Mississippi River delta in the United States, the Ural River delta has been significantly modified to reduce flooding and divert water.
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Tarbela Dam, Pakistan
Published May 30, 2005
The Indus River basin extends from the Himalaya Mountains that form the northeastern boundary of Pakistan to the alluvial plains of Sindh near the Arabian Sea coastline. Tarbela Dam is part of the Indus Basin Project, which resulted from a water treaty signed in 1960 between India and Pakistan. This treaty guaranteed Pakistan water supplies independent of upstream control by India. Designed primarily for water storage rather than power generation, the dam was completed in 1977. Turquoise waters of the Indus River (to the south of the dam) reflect the high proportion of silt and clay suspended in waters released by the spillways.
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Khartoum, Sudan
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Published May 23, 2005
Sudan’s capital city, Khartoum, translates as “Elephant’s Trunk.” The name describes the shape of the Nile where the Blue and the White Nile Rivers unite to form the single Nile River that flows northward into Egypt. This image shows the rivers near the end of the dry season. The White Nile (western branch) runs through Sudan from Uganda. It originates in equatorial regions, where rainfall occurs throughout the year, and as a result it runs at a nearly constant rate throughout the year. The Blue Nile, nearly dry this time of year, flows out of the Ethiopian highlands, where rainfall is more seasonal. It swells in the late summer and early fall with rains from the summer monsoons. The flow at these times can be so great that the volume is too much for the river’s channel, causing the Nile to flow backward at the junction.
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Baitoushan Volcano, China and North Korea
Published May 16, 2005
One of the largest known eruptions of the modern geologic period (the Holocene) occurred at Baitoushan Volcano about 1000 A.D. The eruption created the 4.5-kilometer diameter, 850-meter deep summit caldera of the volcano, which is now filled with the waters of Lake Tianchi.
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London, United Kingdom
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Published May 9, 2005
Numerous well-known landmarks appear in this detailed view of London taken from the International Space Station.
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Jericho, West Bank
Published May 2, 2005
Commonly known as “the oldest city in the world,” Jericho is an important historical, cultural, and political center located northwest of the Dead Sea. This astronaut photograph illustrates the city center, and the original settlement mound of Tell es-Sultan. Total distance across the image is approximately 8 kilometers (5 miles). Two large refugee camps are located to the northwest and south of the city center. The high building density of the refugee camps contrasts sharply with the more open city center and irrigated fields (green polygonal patches) of Jericho, and illustrates one of the physical consequences of the ongoing Israeli-Palestinian conflict in the region.
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Spring Thaw, Straits of Mackinac
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Published April 25, 2005
he Mackinac Bridge spans a stretch of water five miles wide between Michigan’s lower and upper peninsulas. The strait connects Lakes Michigan (left) and Huron (right). The bridge is a combination of pier-supported spans with a high, central suspension sector that allows passage of lake steamers.
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Lima Metropolitan Area, Peru
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Published April 18, 2005
Located on the broad alluvial fan of the Rimac River, Lima is the capital of Peru and the only megacity (7.7 million inhabitants in 2002) located on the western coastline of South America.
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