Next Article in Journal
Correction: Xu, C., et al. Effects of Artificial LED Light on the Growth of Three Submerged Macrophyte Species during the Low-Growth Winter Season: Implications for Macrophyte Restoration in Small Eutrophic Lakes. Water 2019, 11, 1512
Previous Article in Journal
Lessons from 10 Years of Experience with Australia’s Risk-Based Guidelines for Managed Aquifer Recharge
Open AccessArticle

Glacial Lake Changes and Identification of Potentially Dangerous Glacial Lakes in the Yi’ong Zangbo River Basin

College of Geography and Environment Sciences, Northwest Normal University, Lanzhou 730070, China
*
Author to whom correspondence should be addressed.
Water 2020, 12(2), 538; https://doi.org/10.3390/w12020538
Received: 1 November 2019 / Revised: 30 January 2020 / Accepted: 10 February 2020 / Published: 14 February 2020
(This article belongs to the Section Hydrology and Hydrogeology)
The southeastern Tibetan Plateau, where monsoonal temperate glaciers are most developed, has a huge number of glacial lakes. Based on Landsat Operational Land Imager (OLI) images, 192 glacial lakes with a total area of 45.73 ± 6.18 km2 in 2016 were delineated in the Yi’ong Zangbo River Basin. Glacial lakes with areas of less than 0.1 km2 accounted for 81.77% of the total number, and glacial lakes located above 4500 m elevation comprised 83.33%. Dramatic glacier melting caused by climate warming has occurred, resulting in the formation and expansion of glacial lakes and the increase of potential glacial lake outburst floods (GLOFs) risk. From 1970 to 2016, the total area of glaciers in the basin has decreased by 35.39%, whereas the number and total area of glacial lakes have, respectively, increased by 86 and 1.59 km2. In that time, 110 new glacial lakes emerged, whereas 24 of the original lakes disappeared. The newly formed lakes have a smaller mean area but higher mean elevation than the lakes that disappeared. Based on five indicators, a first-order method was used to identify glacial lakes that pose potential threats. We identified 10 lakes with very high, 7 with high, 31 with medium, and 19 with low GLOF susceptibility, out of 67 moraine-dammed glacial lakes with areas larger than 0.02 km2. Understanding the behavior of glaciers and glacial lakes is a vital aspect of GLOFs disaster management, and the monitoring of glacial lakes should be strengthened. View Full-Text
Keywords: glacial lake; glacier; glacial lake outburst floods (GLOFs); risk assessment; Yi’ong Zangbo River Basin glacial lake; glacier; glacial lake outburst floods (GLOFs); risk assessment; Yi’ong Zangbo River Basin
Show Figures

Figure 1

MDPI and ACS Style

Duan, H.; Yao, X.; Zhang, D.; Qi, M.; Liu, J. Glacial Lake Changes and Identification of Potentially Dangerous Glacial Lakes in the Yi’ong Zangbo River Basin. Water 2020, 12, 538.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop