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Presentation on Lake Baikal

Toponymy the origin of the name lake is not definitely established. There are several versions.

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Place names Bigal (Yakut) – very deep water; Bai-Kul (Turk) – rich lake; Bay-hi (kit) – North sea; Baigaal-Dalai (Mong) – rich fire

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Toponymy the First Russian explorers of Siberia used the Evenki name “Lamu” (sea). Since the second half of the 17th century Russians are switching to the name adopted by the Buryats – Baghal. However, they have adapted it to their language, replacing the letter “g” in the usual “K”. After that the lake acquired its modern meaning.

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The geographical position of the lake Baikal is located in Central Asia on the territory of Russia, on the border of Irkutsk oblast and Buryat Republic. The lake stretches from North to South-West for 636 km in the form of a giant Crescent. The width of Baikal varies from 25 to 80 km.

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The geographical position of the water surface Area is 31722 sq km (excluding Islands), which is equal to the area of such States as Denmark, Belgium or the Netherlands. By area, Baikal ranks 6th in the world. The coastline is 2100 km.

Lake Baikal is located in Central Asia on the border of Irkutsk oblast and Buryat Republic in Russian Federation . The lake stretches from North-East to South-West 620 km in the form of a giant Crescent. Width of Baikal varies from 24 to 79 km of the Baikal Bottom in 1167 metres below the ocean level, and the mirror of its water — 455,5 [ meters above.

The water surface area of lake Baikal — 31 722 km2 (excluding Islands ), which is approximately equal to the area of such countries as Belgium or the Netherlands . By area, Baikal ranks seventh among the largest lakes in the world .

The length of the coastline — 2100 km.

The lake is situated in a kettle . surrounded on all sides by mountain ranges and hills [6] . While the West coast is rocky and steep, the terrain of the East coast is more sloping (in some places the mountains recede from the shore for tens of kilometers).

Depth

The depth of lake Baikal in comparison with the depths of the Caspian sea and lake Tanganyika

Baikal — the deepest lake on Earth . The modern value of the maximum depth of the lake — 1642 m [2] — was established in 1983, L. G. I. A. Kolotylo and Sulimov during execution of hydrographic works by the expedition at Russia the USSR Ministry of defense [5] at coordinates 53°14’59” with. sh. 108°05’11” e / 53.24972° n 108.08639° e / 53.24972; 108.08639 (G) (O) .

Maximum depth was mapped in 1992 [7] and confirmed in 2002 as a result of the joint Belgian-Spanish-Russian project to create a new bathymetric map of lake Baikal, when they were digitized depth 1 312 788 points lake waters (depth values were obtained by recalculation of the data of acoustic sounding, combined