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Archive for October 12th, 2009

Puy Mary in the Massif Central, France

45.1N 2.6E

October 12th, 2009 Category: Snapshots

France - September 29th, 2009

France - September 29th, 2009

The Massif Central is an elevated region in south-central France, consisting of mountains and plateaus. A flatter area with many cities and towns appears brown, reaching from the center to the top center of the image.

Southwest of this flatter brownish area is a green area with dark brown peaks. The Pas de Peyrol, a mountain pass located in Auvergne, France, is found amidst these mountains on the slopes of Puy Mary (1,787 m). At an elevation of 1,589 meters, it is the highest road pass in the Massif Central.

The Grand Canyon in Arizona, USA – October 12th, 2009

36.1N 113.2W

October 12th, 2009 Category: Image of the day, Lakes

Grand Canyon, USA - August 11th, 2009

Grand Canyon, USA - August 11th, 2009

Eastern half

Eastern half

Western half

Western half

The Grand Canyon is a steep-sided gorge carved by the Colorado River in the United States in the state of Arizona.

The canyon is 277 miles (446 km) long, ranges in width from 4 to 18 miles (6.4 to 29 km) and attains a depth of over a mile (1.83 km) (6000 feet).

It is largely contained within the Grand Canyon National Park, one of the first national parks in the United States. Here, the canyon snakes through the middle of the image, with Lake Mead visible on the left.

Longstanding scientific consensus has been that the canyon was created over a six million year period as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted.

The canyon began in the west, followed by another that formed in the east. Eventually, the two broke through and were merged some six million years ago. The close-ups focus on the eastern and western sections of the canyon.

A Coruña and Santiago de Compostela, Spain

43.3N 8.3W

October 12th, 2009 Category: Snapshots

Spain - September 24th, 2009

Spain - September 24th, 2009

The city of A Coruña, the second largest city in Galicia in northwestern Spain and the capital of A Coruña Province, is visible as a grey area along the coast at the top center. It provides a distribution point for agricultural goods from the region.

A Coruña is a busy port located on a promontory in the entrance of an estuary in a large gulf on the Atlantic Ocean. The isthmus of this promontory was at times formed only by a small strip of sand. Erosion and sea currents caused a progressive accumulation of sand, enlarging it to its present dimensions.

To the south of A Coruña, another grey area is visible amidst the surrounding green landscape. This is the city of Santiago de Compostela, the capital of the autonomous community of Galicia and a UNESCO World Heritage Site.

Lvinaya Past and Other Volcanoes of Southern Iturup Island

44.6N 146.9E

October 12th, 2009 Category: Volcanoes

Japan - August 31st, 2009

Japan - August 31st, 2009

The topography of Iturup, the largest of the southern Kuril Islands, disputed by Russia and Japan, includes a chain of volcanic massifs running northeast to southwest. This image focuses on the volcanoes on the southern part of the island.

The most distinctive is the Lvinaya Past (literally “Lion’s Jaw”) volcano, located on the western shore. The volcano derives its name from a rock resembling a sleeping lion that breaches the surface at the center of the submerged caldera rim.

A shallow 5-km-wide passageway on the northwest side allows access of the Sea of Okhotsk into the caldera basin, whose floor is 550 m below sea level and lies almost 1 km below the caldera rim. From above, the caldera looks like a circular bay on the west coast.

Also visible in this orthorectified image are Berutarube and Atsonupuri, both stratovolcanoes. The former is seen here at the very tip of the island, while the latter is located on a peninsula on the west coast near the top of the image.