Preprints
https://doi.org/10.5194/egusphere-2022-586
https://doi.org/10.5194/egusphere-2022-586
19 Sep 2022
 | 19 Sep 2022
Status: this preprint has been withdrawn by the authors.

Spatio-temporal evolution of glacial lakes in the Tibetan Plateau over the past 30 years

Xiangyang Dou, Xuanmei Fan, Ali P. Yunus, Junlin Xiong, Ran Tang, Xin Wang, and Qiang Xu

Abstract. As the Third Pole of the Earth and the Water Tower of Asia, Tibetan Plateau (TP) nurtures large numbers of glacial lakes, which are sensitive to global climate change. These lakes modulate the freshwater ecosystem in the region, but concurrently pose severe threats to the valley population by means of sudden glacial lake outbursts and consequent floods (GLOFs). Lack of high-resolution multi-temporal inventory of glacial lakes in TP hampers a better understanding and prediction of the future trend and risk of glacial lakes. Here, we created a multi-temporal inventory of glacial lakes in TP using 30 years record of 42833 satellite images (1990–2019), and discussed their characteristics and spatio-temporal evolution over the years. Results showed that their number and area had increased by 3285 and 258.82 km2 in the last 3 decades, respectively. We noticed that different regions of TP exhibited varying change rates in glacial lake size, most regions show a trend of expansion and increase in glacial lakes, while some regions show a trend of decreasing such as the western Pamir and the eastern Hindu Kush. The mapping uncertainty is about 17.5 %, lower than other available datasets, thus making our inventory reliable for the spatio-temporal evolution analysis of glacial lakes in TP. Our lake inventory data are freely available at https://doi.org/10.5281/zenodo.5574289 (Dou et al., 2021), it can help to study climate change-glacier-glacial lake-GLOF interactions in the Third Pole and serve input to various hydro-climatic studies.

This preprint has been withdrawn.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Xiangyang Dou, Xuanmei Fan, Ali P. Yunus, Junlin Xiong, Ran Tang, Xin Wang, and Qiang Xu

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-586', Anonymous Referee #1, 16 Oct 2022
  • RC2: 'Comment on egusphere-2022-586', Anonymous Referee #2, 17 Oct 2022
  • RC3: 'Comment on egusphere-2022-586', Anonymous Referee #3, 19 Oct 2022

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-586', Anonymous Referee #1, 16 Oct 2022
  • RC2: 'Comment on egusphere-2022-586', Anonymous Referee #2, 17 Oct 2022
  • RC3: 'Comment on egusphere-2022-586', Anonymous Referee #3, 19 Oct 2022
Xiangyang Dou, Xuanmei Fan, Ali P. Yunus, Junlin Xiong, Ran Tang, Xin Wang, and Qiang Xu
Xiangyang Dou, Xuanmei Fan, Ali P. Yunus, Junlin Xiong, Ran Tang, Xin Wang, and Qiang Xu

Viewed

Total article views: 678 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
409 244 25 678 81 15 18
  • HTML: 409
  • PDF: 244
  • XML: 25
  • Total: 678
  • Supplement: 81
  • BibTeX: 15
  • EndNote: 18
Views and downloads (calculated since 19 Sep 2022)
Cumulative views and downloads (calculated since 19 Sep 2022)

Viewed (geographical distribution)

Total article views: 674 (including HTML, PDF, and XML) Thereof 674 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 20 Jun 2024
Download

This preprint has been withdrawn.

Short summary
This study created a multi-temporal inventory of glacial lake from 1990 to 2019 throughout the Tibetan Plateau . In here, we demonstrated the quantity and size of glacier lakes have grown by 3285 and 258.82 sq km, respectively. The distribution of glacial lakes across the 17 mountains of TP is uneven, and the pace of area change varies per subregion. Most glacial lakes are distributed in the elevation range of 4400–5400 m above sea level, with an obvious expansion tendency in recent decades.