Assessment of rock glaciers and their water storage in Guokalariju, Tibetan Plateau

Abstract ∼ 404.69  km2. Rock glaciers are unevenly distributed within the three sub-regions from west to east, with 80 % of them concentrated in the central region, where climatic and topographic conditions are most favorable. Under the same ground temperature conditions, increases in precipitation are conducive to rock glaciers forming at lower altitudes. Indeed, the lower limit of rock glaciers' mean altitude decreased eastward with increasing precipitation. Estimates of the water storage capacity of rock glaciers obtained by applying different methods varied considerably, but all showed the potential hydrological value of rock glaciers. The possible water storage in the subsurface ice of rock glacier permafrost was 1.32–3.60 km3. The ratio between the amount of subsurface ice stored in rock glaciers and surface ice stored in local glaciers falls within the range of 1: 2.32 to 1: 1.26, with an average ratio of 1: 1.69. In the west region, where the climate is the driest, the water storage capacity of rock glaciers was estimated to be up to twice as large as that of the sub-region's glaciers. Changes in water resources and permafrost stability in the area where rock glaciers occur will have implications for regional water resource management, disaster prevention, and sustainable development strategies.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Assessment of rock glaciers and their water storage in Guokalariju, Tibetan Plateau ; volume:18 ; number:1 ; year:2024 ; pages:1-16 ; extent:16
The Cryosphere ; 18, Heft 1 (2024), 1-16 (gesamt 16)

Urheber
Li, Mengzhen
Yang, Yanmin
Peng, Zhaoyu
Liu, Gengnian

DOI
10.5194/tc-18-1-2024
URN
urn:nbn:de:101:1-2024010403160634157137
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:29 MESZ

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Beteiligte

  • Li, Mengzhen
  • Yang, Yanmin
  • Peng, Zhaoyu
  • Liu, Gengnian

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