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Multiple Lakes Around the Sayan Mountains in Asia

49.8N 90.7E

October 26th, 2010 Category: Lakes, Mountains, Rivers

Russia, Mongolia, Kazakhstan and China - October 13th, 2010

The Sayan Mountains, capped in snow, have a central position in this image. Multiple lakes can be observed in the lowlands near the foot of the range.

In the upper right quadrant, in Russia, is the Krasnoyarskoye Reservoir, appearing as a thick dark blue line. The reservoir is located along the Yenisei River.

To the south, across the mountains near the center right, is Lake Uvs Nuur. It is situated on the border between Russia’s Tuva Republic (north) and Mongolia (south). Several other lakes can be seen further south, in Mongolia’s Great Lakes Depression.

In the lower left quadrant, the lake that appears as a long, thick, jagged line is Lake Zaysan, in Kazakhstan. To the east, is the brighter green Lake Ulungur, in China’s Xinjiang Uygur Autonomous Region.

The Sayan Mountains and the Yenisei River, Russia

69.4N 86.1E

June 26th, 2009 Category: Rivers

Krasnoyarsk Krai, Russia - June 23rd, 2009

Krasnoyarsk Krai, Russia - June 23rd, 2009

The Sayan Mountains are a mountain range in southern Siberia, Russia. The Eastern Sayan extends 1000 km from the Yenisei River to the southwest end of Lake Baikal. The Western Sayan forms the eastern continuation of the Altay Mountains, stretching for 500 km to the middle of the Eastern Sayan.

Here, part of the Eastern Sayan in Krasnoyarsk Krai is visible, bordered by the Yenisei River (lower left) and several lakes. The largest lake visible is Khantayskoye Reservoir, situated between the river and the snow-capped mountain peaks.

The Sayan Mountains’ towering peaks and cool lakes southwest of Tuva give rise to the tributaries that merge to become the Yenisei River, one of Siberia’s major rivers, which flows north over 2000 miles to the Arctic Ocean.

While the general elevation is 2000 to 2700 m, some of the individual peaks, consisting largely of granites and metamorphic slates reach altitudes of over 3000 m, with the highest being Munku-Sardyk at 3492 m.

From the Mongolian plateau the ascent is on the whole gentle, but from the plains of Siberia it is much steeper, despite the fact that the range is masked by a broad belt of subsidiary ranges of an Alpine character.

Krasnoyarskoye Reservoir on the Yenisei River, Russia

55.1N 91.5E

August 12th, 2010 Category: Lakes, Rivers

Russia - July 17th, 2010

The long, thick, navy blue curved line through the center of this image is the Krasnoyarskoye Reservoir on the Yenisei River, in Russia. The reservoir is one of the largest man-made lakes of river origin in Siberia.

It is situated in Russia’s Krasnoyarsky District. In this image, taken in summer, the Siberian landscape is free of snow and has varying shades of green. The drainage basin of the reservoir covers three natural zones, forest, forest-steppe and steppe, located in the eastern part of the Sayan Altai mountain range. The forest areas are darker green, while the steppes are brownish in color.

Krasnoyarskoye Reservoir Covered With Winter Ice, Russia

56.0N 92.8E

March 24th, 2010 Category: Lakes, Mountains, Rivers

Russia - March 5th, 2010

Russia - March 5th, 2010

Krasnoyarskoye Reservoir, covered with ice and visible towards the image center, on the Enisei River is one of the largest man-made lakes of river origin in Russian Siberia. It is situated at a distance of 2,502 km from the Enisei mouth. The back- water from the dam extends for a distance of 386 km. The Krasnoyarskoye Reservoir is of the channel type and a long-term storage regulation.

The construction of the reservoir started in 1967 and its live storage was filled in 1970. The drainage basin of the reservoir covers three natural zones, forest, forest-steppe and steppe, located in the eastern part of the Sayan Altai mountain range.

The drainage network of the basin mainly consists of mountain rivers with narrow valleys, of which 35 enter Krasnoyarskoye Reservoir. The recharge water from the rivers is formed by melting snow and precipitation of summer- autumn period. The annual inflow to the reservoir changes from 60 to 120 km3 yr-1.

The water resources of the reservoir are used for electric power generation at the Krasnoyarsk hydro-electric power station (capacity 6x106kWh). Navigation and transportation are carried out on the reservoir and its main tributaries (Enisei, Tuba and Abakan) during the ice free period. Timber rafting, commercial fishing and recreation are also among important uses of the reservoir. Further, its water is used for irrigation in the steppe region of the basin.

The pollution of the reservoir is caused by the wastewater from mining industry and domestic sewage of the cities Abakan and Tchernogorsk. The projects to cope with the problems of lake shore erosion and water pollution are as follows: bank reinforcement, removal of floating and sinking timbers, sewage treatment, and filling shallow parts of the lake for agricultural development.

The Baikal and Barguzin Ranges Around the Northern End of Lake Baikal, Russia – November 3rd, 2009

55.7N 109.5E

November 3rd, 2009 Category: Image of the day, Lakes

Russia - October 5th, 2009

Russia - October 5th, 2009

The northern end of Lake Baikal in southern Siberia, Russia, is surrounded by the Baikal Mountains to the west and north and the Barguzin Range to the east. In this image, taken in early autumn, the mountains are capped with snow although the lake is not yet frozen over.

The Baikal Mountains or Baikal Range rise steeply over the northwestern shore of Lake Baikal. Their highest peak is Chersky Mountain at 2572 m. The Baikal Mountains, along with the Eastern Sayan Mountains, provide the southern boundary of the Central Siberian Plateau.

The Barguzin Range has a length of 280 km, and heights of up to 2,840 m. It is mostly covered by larch taiga. The range bounds the Barguzin Valley from the northwest. A part of the Barguzin Preserve is located on the Western slopes of the range.