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Archive for October 15th, 2009

Snow in the Andes West of Mar Chiquita, Argentina

30.6S 62.5W

October 15th, 2009 Category: Lakes

Argentina - September 30th, 2009

Argentina - September 30th, 2009

The Andes Mountains, though veiled by clouds in some places, appear capped by bright white snow as they run horizontally along the western border of Argentina. In a large depression to the right of this long mountain chain lies the Mar Chiquita, the country’s largest naturally occurring salt lake.

Here, much of the shallow lake appears greenish, with white salt flats visible on its northwestern shores. Due to its shallow depth and evaporation, its surface area and salinity vary greatly. This surface area tends to vacilate between averages of 2,000 and 4,500 km².

Agriculture and Hills in Mexico Near Gulf of California

28.6N 111.5W

October 15th, 2009 Category: Snapshots

Mexico - September 6th, 2009

Mexico - September 6th, 2009

This orthorectified image focuses on an area of the Mexican state of Sonora, near the Gulf of California. Offshore, a small island called Isla San Pedro Nolasco can be seen admist the swirling currents of the gulf.

Inland, flat agricultural areas can be seen on the left side of the image, while the right side contains some hills and plateaus reaching heights of up to 600 meters. These are part of the foothills of the Sierra Madre Occidental.

Piedmont Region Surrounded by the Alps, Italy

45.0N 7.6E

October 15th, 2009 Category: Rivers

Italy - September 29th, 2009

Italy - September 29th, 2009

The region of Piedmont in Italy is surrounded on three sides by the Alps, including Monviso (Mont Vis), where the River Po rises, and Monte Rosa.

The geography of Piedmont is 43.3% mountainous, along with extensive areas of hills (30.3%) and plains (26.4%). From the highest peaks the land generally slopes down to hilly areas, then to the upper great Padan Plain, and finally to the lower great Padan Plain.

Piedmont is the second largest of Italy’s 20 administrative regions, after Sicily. It has an area of 25,399 km2 and a population of about 4.4 million. The capital is Turin, appears as a brownish area above the image center.

Lake Ulungur Below the Altai Mountains, China – October 15th, 2009

47.2N 87.3E

October 15th, 2009 Category: Image of the day, Lakes, Rivers

China - September 4th, 2009

China - September 4th, 2009

Freshwater Lake Ulungur is located in Fuhai, Xinjiang, China. Its total surface area is 1,035 square kilometers, although it is divided into two sections: the larger Buluntuo Lake and the smaller Jili Lake.

The lake is fed by the Ulungur River. Further water is diverted into it by a canal built through the watershed between the Ulungur and Irtysh rivers.

North of the lake arise the snow-capped Altai Mountains, the source of the Irtysh and Ob Rivers. The mountain range runs through central Asia, where Russia, China, Mongolia and Kazakhstan come together. As they extend southeast, the peaks gradually become lower and merge into the high plateau of the Gobi Desert.