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Mouth of Don River and Kerch Strait Connected to Sea of Azov

46.0N 36.0E

October 17th, 2011 Category: Rivers

Sea of Azov - October 5th, 2011

This orthorectified image shows the Sea of Azov, a sea in the southern part of Eastern Europe. It is linked by the narrow (about 4 km-wide) Strait of Kerch to the Black Sea to the south, and is bounded on the north by mainland Ukraine, on the east by Russia, and on the west by the Ukraine’s Crimean Peninsula.

The sea is largely affected by the inflow of numerous rivers, which bring sand, silt, and shells, forming numerous bays, limans, and narrow sandbanks called spits. Because of these deposits, the sea bottom is relatively smooth and flat with the depth gradually increasing toward the sea centre. The Don and Kuban are the major rivers that flow into it. In this image, the mouth and lower portions of the Don River appear bright white.

Don River Entering Taganrog Bay, Russia and Ukraine – June 2nd, 2010

47.0N 38.8E

June 2nd, 2010 Category: Image of the day, Rivers, Sediments

Ukraine and Russia - April 28th, 2010

Ukraine and Russia - April 28th, 2010

Taganrog Bay or Taganrog Gulf is the northeastern arm of the Sea of Azov. At its northeast end is the mouth of the Don River. It has a length of about 140 km, is 31km wide at the mouth, and has a median depth of about 5 m.

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.

Its mouth is marked by the Dolgaya Spit on the south and the Belosaray Spit (Belosarayskaya Spit) on the north. It abounds in sandy spits that partly enclose shallow bays. The Rivers Don, Kalmius, Mius and Yeya fall into the Taganrog Bay.

Don River Crossing Rostov Oblast, Russia

47.2N 39.7E

April 30th, 2010 Category: Rivers

Russia - February 18th, 2010

Russia - February 18th, 2010

Rostov Oblast is a federal subject of Russia (an oblast), located in the Southern Federal District. Rostov Oblast lies in the south of the country with an area of 100,800 km² and a population of 4,404,013 (2002 Census) making it the fifth most populous federal subject in Russia.

Its administrative center is the city of Rostov-on-Don (center left edge), which also became the administrative center of the Southern Federal District in 2002. The city is located on the banks of the Don River, one of Europe’s largest. In this orthorectified image, the river can be seen flowing across the oblast. Many fields are visible north and south of the river.

Don River Spilling Sediments into Sea of Azov

47.0N 39.4E

July 12th, 2009 Category: Lakes, Rivers

Russia - June 21st, 2009

Russia - June 21st, 2009

The Sea of Azov is the shallowest sea in the world with an average depth of 13 metres (43 ft) and maximum depth of 15.3 metres (50 ft).

In places where silt has built up, such as Taganrog Bay (above, center), the average depth is less than 1 metre (3 ft). Here, sediments from the Don River (top right quadrant) can be seen spilling into the bay, coloring its waters green, and gradually swirling downwards into the rest of the sea.

The prevailing current in the sea is a counter-clockwise swirl. Salinity varies from 1 to 15 parts per thousand (compared to 30 to 40 for the oceans) across the sea and with season.

The Strait of Kerch links the Sea of Azov to the Black Sea (below).

Environmental Issues for Volga River, Russia – June 16th, 2013

46.0N 49.2E

June 16th, 2013 Category: Image of the day, Rivers MODISAqua

Russia – June 16th, 2013

Draining most of western Russian, the Volga is the largest river in Europe. From its source in the Valdai Hills north east of Moscow the river flows east and south east to the Caspian Sea. This thumbnail images focuses on its delta at the shores of the Caspian Sea, while a larger portion of the river’s meanderings can be seen to the north upon opening the full image.

A large number of tributaries make up the Volga river system the delta where the river enters the Caspian is composed of hundreds of channels and lies 28 m below sea level. For three months of the year the river is frozen for most of its length, the presence of a large number of dams has improved navigation but has reduced the river’s flow.

Consequently the river is suffering from pollution compounded by the fact that it flows through some of the most populated area of the country and includes an important agricultural area. Half of all river freight in Russia uses the Volga, which is connected to the Black sea via the Don river and canals (click here for more information).

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