Kaushik, Saurabh und Rafiq, Mohammd und Dharpure, Jaydeo und Howat, Ian und Moortgat, Joachim und Joshi, P und Singh, Tejpal und Dietz, Andreas (2024) Increasing risk of glacial lake outburst flood in Sikkim, Eastern Himalaya under climate warming. Remote Sensing Applications: Society and Environment, 36 (10128), Seiten 1-13. Elsevier. doi: 10.1016/j.rsase.2024.101286. ISSN 2352-9385.
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Offizielle URL: https://www.sciencedirect.com/science/article/pii/S2352938524001502?ref=pdf_download&fr=RR-2&rr=8a40f4d8084fbb35
Kurzfassung
The increasing risk of Glacial Lake Outburst Floods (GLOFs) in the Eastern Himalaya is exacerbated by climate change-driven glacial ice mass loss, slowdown, and increasing infrastructure projects in the high-altitude regions. To quantify the current risk of potential future disasters we update the inventory of glacial lakes in Sikkim Himalaya, identify the most potentially dangerous glacial lakes (PDGL) and model their peak discharge in different scenarios. The updated glacial lake inventory includes 232 glacial lakes (of >0.01 km2) covering a cumulative area of 22.23 ± 0.10 km2. Our GLOF susceptibility mapping of all moraine-dammed glacial lakes using an Analytic Hierarchy Process (AHP) reveals one lake as very high risk, eight as high risk, 22 as medium risk, 56 as low risk, and 18 as very low risk. Further, we apply dam break flood simulations for the seven most dangerous lakes. Results reveal highest peak discharges of 9504 m3 s−1 and 8421 m3 s−1 in extreme case scenarios from the Khanchung and South Lhonak lakes, respectively. The lowest peak discharge of 622 m3 s−1 is estimated in a normal outburst event for Yongdi lake, with every scenario at least 447 m3 s−1 discharge is reaching to Chungthang town. We find that more than 10,000 people face direct threat of GLOF with potential large-scale infrastructure damage (∼1900 settlement, 5 bridges and 2 hydropower plants). The updated glacial lake dataset, GLOF susceptibility mapping, and modeling results demonstrate the urgent need to install an early warning system and control breaching of highly dangerous lakes.
elib-URL des Eintrags: | https://elib.dlr.de/205345/ | ||||||||||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||||||||||
Titel: | Increasing risk of glacial lake outburst flood in Sikkim, Eastern Himalaya under climate warming | ||||||||||||||||||||||||||||||||||||
Autoren: |
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Datum: | Juli 2024 | ||||||||||||||||||||||||||||||||||||
Erschienen in: | Remote Sensing Applications: Society and Environment | ||||||||||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||||||||||
Band: | 36 | ||||||||||||||||||||||||||||||||||||
DOI: | 10.1016/j.rsase.2024.101286 | ||||||||||||||||||||||||||||||||||||
Seitenbereich: | Seiten 1-13 | ||||||||||||||||||||||||||||||||||||
Verlag: | Elsevier | ||||||||||||||||||||||||||||||||||||
ISSN: | 2352-9385 | ||||||||||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||||||||||
Stichwörter: | Adjusted dunn test, Friedman test, Glacier temporal changes, Chandra-Bhaga Basin, Suru-Zanskar Basin | ||||||||||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Fernerkundung u. Geoforschung | ||||||||||||||||||||||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||||||||||||||
Institute & Einrichtungen: | Deutsches Fernerkundungsdatenzentrum > Dynamik der Landoberfläche | ||||||||||||||||||||||||||||||||||||
Hinterlegt von: | Dietz, Andreas | ||||||||||||||||||||||||||||||||||||
Hinterlegt am: | 14 Aug 2024 10:04 | ||||||||||||||||||||||||||||||||||||
Letzte Änderung: | 12 Sep 2024 14:02 |
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