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The Bosphorus, Istanbul and Mountainous Terrain of Turkey – February 21st, 2012

41.0N 28.9E

February 21st, 2012 Category: Mountains

Turkey - February 9th, 2012

This orthorectified wide-swath ASAR image shows the city of Istanbul, Turkey, straddling the Bosphorus. The world’s narrowest strait used for international navigation, it connects the Black Sea (top right) with the Sea of Marmara (top center).

Istanbul is the largest city of Turkey. The Istanbul metropolitan province (municipality) had 13.26 million people living in it as of December, 2010, which is 18% of Turkey’s population and the 3rd largest metropolitan area in Europe (including the Asian side of the city), after London and Moscow. The city is located in northwestern Turkey within the Marmara Region on a total area of 5,343 square kilometers (2,063 sq mi).

Turkey is divided into seven census regions: Marmara, Aegean, Black Sea, Central Anatolia, Eastern Anatolia, Southeastern Anatolia and the Mediterranean. The uneven north Anatolian terrain running along the Black Sea resembles a long, narrow belt. This region comprises approximately one-sixth of Turkey’s total land area. As a general trend, the inland Anatolian plateau becomes increasingly rugged as it progresses eastward. Turkey’s varied landscapes are the product of complex earth movements that have shaped the region over thousands of years and still manifest themselves in fairly frequent earthquakes and occasional volcanic eruptions. The Bosphorus and the Dardanelles owe their existence to the fault lines running through Turkey that led to the creation of the Black Sea.

Important Rivers of the World – July 27th, 2011 – EOSnap Celebrates its 4000th Post!

46.2N 49.4E

July 27th, 2011 Category: Image of the day, Rivers

Russia - July 24th, 2011

Egypt - July 23rd, 2011

Argentina - July 23rd, 2011

Brazil - July 23rd, 2011

Eosnap celebrates its 4000th post with a look at recent images of the mouths of a few of the world’s most important rivers: the Volga, the Nile, the Rio de la Plata and the Amazon.

The main image shows the delta of the Volga River where it empties into the Caspian Sea. The Volga, which flows through central Russia, is the largest river in Europe in terms of length, discharge, and watershed. It rises in the Valdai Hills 225 meters (738 ft) above sea level north-west of Moscow.

The Nile is a major north-flowing river in North Africa, generally regarded as the longest river in the world. It is 6,650 km (4,130 miles) long and runs through eleven countries. The northern section of the river flows almost entirely through desert, from Sudan into Egypt. North of Cairo, the Nile splits into two branches (or distributaries) that feed the Mediterranean: the Rosetta Branch to the west and the Damietta to the east, forming the Nile Delta.

The Río de la Plata is the river and estuary formed by the confluence of the Uruguay River and the Paraná River on the border between Argentina and Uruguay. It is a funnel-shaped indentation on the southeastern coastline of South America, about 290 kilometres (180 mi) long. The Río de la Plata widens from about 2 kilometres (1.2 mi) at the inner part to about 220 kilometres (140 mi) at its mouth. The major ports and capital cities of Buenos Aires and Montevideo on its western and northern shores, respectively.

The Amazon River, also in South America, is the second longest river in the world and by far the largest by waterflow with an average discharge greater than the next seven largest rivers combined. The Amazon, also has the largest drainage basin in the world, about 7,050,000 square kilometres (2,720,000 sq mi), and accounts for approximately one-fifth of the world’s total river flow. The width of the Amazon varies between 1.6 and 10 kilometres (0.99 and 6.2 mi) at low stage, but expands during the wet season to 48 kilometres (30 mi) or more. The river enters the Atlantic Ocean in a broad estuary about 240 kilometres (150 mi) wide. The mouth of the main stem is 80 kilometres (50 mi).


Clouds of Smoke by Ural Mountains from Wildfires in Russia

60.0N 60.0E

May 27th, 2011 Category: Fires

Russia - May 21st, 2011

The smoke hanging in the air over Siberia is caused by wildfires in central Russia (click here for previous articles).

The fires have been mainly confined to remote parts of Siberia and the Urals, with no blazes reported near Moscow and other central Russian cities.

White Sea and Hazy Skies Over Lakes Onega and Ladoga, Russia

61.6N 35.5E

August 18th, 2010 Category: Lakes

Russia - August 4th, 2010

Despite its dark blue color, the body of water in the upper left quadrant is known as the White Sea. It is an inlet of the Barents Sea on the northwest coast of Russia. It is surrounded by Karelia to the west, the Kola peninsula to the north, and the Kanin Peninsula to the northeast.

Two other bodies of water can also be observed to the south: Lake Onega and Lake Ladoga (lower left corner). The skies over these lakes appear slightly hazy due to smoke from wildfires in other parts of Russia (click here for previous articles).

Wildfire Northeast of Dnieper River and Black Sea, Russia

50.3N 35.7E

August 16th, 2010 Category: Fires, Lakes, Rivers

Russia - August 4th, 2010

The lower parts of this image are occupied by the Black Sea (furthest south) and the Sea of Azov (connected to the former, slightly north of it). The Sea of Azov appears more greenish in color.

The surrounding land belongs to Ukraine (upper left quadrant) and Russia (remainder of image). The bay generally freezes from December to May; however in this image taken in late April, it is completely clear of ice and its waters appear tinged green with sediments.

The river flowing across the image and into the Black Sea to the west of the Crimean Peninsula is the Dnieper. It flows from Russia, through Belarus and Ukraine, to the Black Sea, for a total length of 2,285 kilometres (1,420 mi).

Black Sea (larger, below) and the Sea of Azov (smaller, above). The land belongs to Turkey (below), Georgia (center right), Russia (upper right quadrant) and Ukraine (upper left quadrant).

Moving northeastward into Russian territory, a fire can be seen in the upper right quadrant. It appears to be situated in a forested area about halfway between Moscow and the Ukrainian border. Russia has been plagued by such wildfires this summer (click here for previous articles).