Guozha Lake

Kotra Tso (Tibetan: ཀོ་བཀྲ་མཚ, Wylie: ko bkra mtsha, THL: ko tra tsa),[1] or Guozha Lake (Chinese: 郭扎错; pinyin: Guō zhā cuò),[lower-alpha 1] previously called Lake Lighten,[2][lower-alpha 2] is a glacial lake in Rutog County in the Ngari Prefecture in the northwest of the Tibet Autonomous Region of China. It lies in the western Kunlun Mountains to the northwest of Bangda Lake,[4] not far from the regional border with Xinjiang.[5] Located at an altitude of 5080 metres, it covers an area of 244 square kilometres with a maximum depth of 81.9 metres and has a drainage basin containing 62 glaciers.[6]

Guozha Lake
Kotra Tso
Guozha Lake viewed from space
Guozha Lake is located in Tibetan Plateau
Guozha Lake
Guozha Lake
LocationRutog County, Tibet, China
Coordinates35°1′53″N 81°5′11″E
Basin countriesChina
Max. length30.4 km (19 mi)
Max. width11.6 km (7 mi)
Surface area252.6 km2 (100 sq mi)
Max. depth81.9 m (269 ft)
Shore length1104 km (65 mi)
Surface elevation5,080 m (16,667 ft)
1 Shore length is not a well-defined measure.

India's claim line in Aksai Chin runs along the water-parting line of Lake Lighten and the Amtogor Lake to the west.[3] However, China has claimed the whole of Aksai Chin in 1959.

Maps
  • Map including Lake Lighten and surrounding region (AMS, 1950)
    Map including Lake Lighten and surrounding region (AMS, 1950)[lower-alpha 3]
  • Map including LI-T'IEN HU (Lake Lighten)) (DMA, 1973)
    Map including LI-T'IEN HU (Lake Lighten)) (DMA, 1973)

Notes
  1. Alternative spellings include Gozha Co, Gozha Tso or Guozhacuo.
  2. The Indian Government documents spell the name as Lake Leighten.[3]
  3. From map: "THE DELINEATION OF INTERNATIONAL BOUNDARIES ON THIS MAP MUST NOT BE CONSIDERED AUTHORITATIVE."

References
  1. Lake Kotra, kmaps.virginia.edu, retrieved 2021-07-03.
  2. Michael Ward. The Kun Lun Shan: Desert Peaks of Central Asia, The Alpine Journal (1989-90), p. 90.
  3. Lamb, Alastair (1973), The Sino-Indian Border in Ladakh (PDF), Australian National University Press, p. 10
  4. Ehlers, Jürgen; Gibbard, Philip Leonard (15 July 2004). Quaternary Glaciations: South America, Asia, Africa, Australasia, Antarctica. Elsevier. p. 107. ISBN 978-0-444-51593-3. Retrieved 9 April 2012.
  5. Maps (Map). Google Maps.
  6. Chaohai, Liu; Shijie, Li; Yafeng, Shi (2017). "Glacial and lake fluctuations in the area of the west Kunlun mountains during the last 45 000 years" (PDF). Annals of Glaciology. 16. Table 1. doi:10.3189/1992AoG16-1-79-84. ISSN 0260-3055.


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