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Posts tagged Anatolia

Bright White Hypersaline Lake Tuz, Turkey

38.7N 33.3E

December 7th, 2011 Category: Lakes, Salt Flats

Turkey - November 25th, 2011

The saline Lake Tuz appears bright white in this image of central Anatolia, Turkey. To the north is the reservoir created by the Hirfanlı Dam, appearing dark blue in color.

Lake Tuz is the second largest lake in Turkey, with a surface area of 1,665 km2 (643 sq mi), and one of the largest hypersaline lakes in the world. The lake, occupying a tectonic depression in the central plateau of Turkey, is fed by two major streams, groundwater, and surface water, but has no outlet. Brackish marshes have formed where channels and streams enter the lake. Arable fields surround the lake, except in the south and southwest where extensive seasonally flooded salt-steppe occurs.

For most of the year, it is very shallow (approx.0.4 m (1 ft)). During winter part of the salt is dissolved in the fresh water that is introduced to the lake by precipitation and surface runoff (to 32.9% salinity). During the summer the lake dries up exposing an average of 30 cm thick salt layer in August. This mechanism is used as a basis for the process of the salt mines in the lake.

Nemrut Volcano Near Shores of Lake Van, Turkey – September 28th, 2009

37.9N 38.7E

September 28th, 2009 Category: Image of the day, Lakes, Volcanoes

Turkey - September 6th, 2009

Turkey - September 6th, 2009

Mount Nemrut, whose round caldera is easily identified near the center of this orthorectified image, is a dormant volcano in Eastern Turkey. It is near Tatvan, a small town in the eastern Anatolian province of Bitlis. The mountain rises from the southwestern shore of Lake Van (upper right), and enters the district of Ahlat to the north.

The volcano is 3,050 m (10,007 ft) high and its elliptic caldera has a diameter of about 7 km by 8 km (4 mi by 5 mi). The western part of the caldera contains a large coldwater crater lake about 155 m (509 ft) deep. There is also a small warm lake whose temperature reaches 60 °C (140 °F), providing evidence of continuing volcanic activity.

Mount Nemrut is the southernmost and youngest of the chain of volcanoes in eastern Anatolia. It is a stratovolcano that began erupting during the fourth geological era and continued to be active until 1597 A.D.

As a result of the volcanic eruptions of Mount Nemrut, the single Van-Mus River Basin was divided into two separate basins. The eruption of Nemrut volcano also led the formation of Lake Van, the largest lake in Turkey.

Reservoirs in Turkey and Syria

37.5N 38.5E

August 25th, 2009 Category: Lakes

Lakes in Syria and Turkey - July 26th, 2009

Lakes in Syria and Turkey - July 26th, 2009

Several artificial lakes created by dams along the Euphrates River can be seen in this image of parts of southern Turkey (above) and northern Syria (below). These are, from top to bottom, the Karakaya Reservoir, Lake Atatürk Dam and Lake Assad. Heavily populated areas appear as grey patches amidst the tan terrain, while agricultural areas irrigated by water from the lakes appear green.

Lake Atatürk Dam was created by the Atatürk Dam on the Euphrates River in the Southeastern Anatolia Region of Turkey. The dam was built to generate electricity and irrigate the plains in the region.

Lake Assad was created by the construction of the Tabaqah Dam on the Euphrates River, upstream from the town of Ar Raqqah. The reservoir is about 80 kilometers long and averaging eight kilometers in width.

Turkey, between the Black Sea and the Mediterranean

38.2N 34.4E

July 14th, 2009 Category: Snapshots

Turkey - May 13th, 2009

Turkey - May 13th, 2009

Turkey is encircled by seas on three sides: the Aegean Sea to the west, the Black Sea to the north and the Mediterranean Sea to the south. Turkey also contains the Sea of Marmara in the northwest (a small part of which is visible at the left edge).

Here, the island nation of Cyprus is also visible in the Mediterranean, south of Turkey, as is coastal Syria, in the lower right quadrant.

Turkey has a high central plateau with narrow coastal plains, between the Köroğlu and East-Black Sea mountain range to the north and the Taurus Mountains to the south. As a general trend, the inland Anatolian plateau becomes increasingly rugged as it progresses eastward.The uneven northern terrain running along the Black Sea resembles a long, narrow belt.

Eastern Turkey has a more mountainous landscape, and is home to the sources of rivers such as the Euphrates, Tigris and Aras, and contains Lake Van and Mount Ararat, Turkey’s highest point at 5,165 metres (16,946 ft).

The coastal areas of Turkey bordering the Mediterranean Sea have a temperate Mediterranean climate, with hot, dry summers and mild, wet and cold winters.

Conditions can be much harsher in the more arid interior. Mountains close to the coast prevent Mediterranean influences from extending inland, giving the central Anatolian plateau of the interior of Turkey a continental climate with sharply contrasting seasons. Winters on the plateau are especially severe, while summers are hot and dry.

Natural Lakes and Artificial Reservoirs in Turkey

41.0N 43.2E

May 25th, 2009 Category: Lakes

Turkey - May 17th, 2009

Turkey - May 17th, 2009

Lake Çıldır is a large freshwater lake in the Ardahan Province, northeastern part of Turkey, visible here northwest of the center of the image. The lake is close to the borders with Georgia and Armenia.

Lake Çıldır is located at an elevation of about 1,900 m and surrounded by mountains. It has an area of 123.00 km² and maximum depth of about 42 m. Water from the lake is used for irrigation.

A smaller lake, Lake Aktaş, can be seen north of Lake Çıldır. It is located on the border of Georgia and Turkey.

Another smaller lake, Lake Arpi, is visible east of Lakes Çıldır and Aktaş, on the other side of the snow-capped peaks. It can be found at an altitude of 2,023 m in the Shirak Province of Armenia. Fed by thaws and four streams, it is the source of the Akhurian River, known as the Arpaçay River in Turkish.

Moving to the southwest of those three lakes, the dark blue waters of an artificial reservoir are visible. This is the Arpaçay Reservoir, in the Kars Province of Turkey’s the Eastern Anatolia region. The reservoir was created by the dam of the same name, finished in 1983, on the aforementioned Akhurian (or Arpaçay) River.