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Sediments in Gulf of Ob and Khalmyer Bay, Russia – August 13th, 2009

72.3N 75.2E

August 13th, 2009 Category: Image of the day, Rivers

Russia - July 27th, 2009

Russia - July 27th, 2009

The long, narrow Gydan Peninsula in Russian Siberia separates the Gulf of Ob (left) from the Khalmyer Bay (right). Both bodies of water are loaded with sediments, although the former is dark brown in color while the latter appears yellow and green.

The Gulf of Ob is an immense bay of the Arctic Ocean in Northern Russia, at the head of which is the mouth of the Ob River. This Gulf flows into the Kara Sea between the Yamal Peninsula (lower left quadrant) and the Gydan Peninsula.

The Gulf is about 1,000 km (600 mi) long and varies from about 50 km (30 mi) to 80 km (50 mi) in width, running generally north and south. It is relatively shallow, with an average depth from ten to twelve metres which restricts heavy sea transport.

Khalmyer Bay, on the other hand, is roughly 185 km long and 47 km wide at its widest point. This deep bay lies in the Kara Sea between the estuaries of the Ob and the Yenisei River. Khalmyer Bay is surrounded by tundra coast and there are numerous river mouths on its shores.

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