Aksuat (lake)

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Aksuat
Ақсуат / Аксуат
Aksuat Lake 2022-06-22 Sentinel-2 L2A True color.jpg
Sentinel-2 image of the lake in 2022.
Relief Map of Kazakhstan.png
Red pog.svg
Aksuat
Location Turgay Basin
Coordinates 51°27′N64°29′E / 51.450°N 64.483°E / 51.450; 64.483
Type endorheic
Primary inflows Karasu
Primary outflows none
Basin  countries Kazakhstan
Max. length18.1 kilometers (11.2 mi)
Max. width4.2 kilometers (2.6 mi)
Surface area50 square kilometers (19 sq mi)
Max. depth3 meters (9.8 ft)
Shore length157 kilometers (35 mi)
Surface elevation119 meters (390 ft)
1 Shore length is not a well-defined measure.

Aksuat (Kazakh : Ақсуат; Russian : Аксуат) is a brackish lake in the Kostanay Region, Kazakhstan. [1]

Contents

Aksuat is a steppe lake of the central sector of the Turgay Basin in Nauyrzym District, Kostanay Region. Now uninhabited Naurzum village is located near the lake and the Naurzum Nature Reserve protected area is named after it. [2] Karamendy, the administrative center of the district, is located about 30 kilometers (19 mi) to the northwest and Shili village 15 kilometers (9.3 mi) to the northeast of the northern end of the lake. [3] [4] [1]

Geography

Aksuat is an endorheic lake lying in the Ishim river valley, between Zharman lake to the north and Sarykopa farther to the south. It is a shallow and elongated lake system, stretching roughly from SSW to NNE and consisting of two main lakes, the Small Aksuat and the Big Aksuat which are connected by a 700 meters (2,300 ft) long channel. The Karasu river flows into the lake from the southwest. In years of heavy snowfall the lake may reach a surface area of 220 square kilometers (85 sq mi) in the spring, but during the dry season in the summer the lake usually splits into a number of smaller, very shallow lakes. In years of drought Aksuat may dry completely up.

The lake freezes in November and its ice begins to melt in April. [5] The banks are indented and the bottom of the lake is muddy. The water has a high concentration of minerals. [6] [3]

Fauna

Aksuat is part of the Naurzum Nature Reserve. It can support large concentrations of waterbirds such as the white-tailed lapwing, common goldeneye and squacco heron. [4] There have been sightings of the critically endangered siberian crane, but few. [5] Among the fish species found in the lake, perch, common roach and carp deserve mention. [4]

See also

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References

  1. 1 2 "M-41 Topographic Chart (in Russian)" . Retrieved 24 July 2022.
  2. Naurzum State Nature Reserve - BirdLife Data Zone
  3. 1 2 Google Earth
  4. 1 2 3 Aksuat Lake - BirdLife Data Zone
  5. 1 2 Sites with great importance for the Siberian Crane
  6. Аксуат; Great Soviet Encyclopedia in 30 vols. — Ch. ed. A.M. Prokhorov. - 3rd ed. - M. Soviet Encyclopedia, 1969-1978. (in Russian)