Cargando…

Disaster Chain Analysis of Avalanche and Landslide and the River Blocking Dam of the Yarlung Zangbo River in Milin County of Tibet on 17 and 29 October 2018

As a “starting zone” and “amplifier” of global climate change, the Qinghai–Tibet Plateau is very responsive to climate change. The global temperature rise has led directly to an acceleration of glacial melting in the plateau and various glacier avalanche disasters have frequently occurred. The lands...

Descripción completa

Detalles Bibliográficos
Autores principales: Jia, Huicong, Chen, Fang, Pan, Donghua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6926747/
https://www.ncbi.nlm.nih.gov/pubmed/31779190
http://dx.doi.org/10.3390/ijerph16234707
_version_ 1783482162050236416
author Jia, Huicong
Chen, Fang
Pan, Donghua
author_facet Jia, Huicong
Chen, Fang
Pan, Donghua
author_sort Jia, Huicong
collection PubMed
description As a “starting zone” and “amplifier” of global climate change, the Qinghai–Tibet Plateau is very responsive to climate change. The global temperature rise has led directly to an acceleration of glacial melting in the plateau and various glacier avalanche disasters have frequently occurred. The landslide caused by glacier avalanches will damage the surrounding environment, causing secondary disasters and a disaster chain effect. Take the disaster chain of the Yarlung Zangbo River at Milin County in Tibet on 17 and 29 October 2018 as an example; a formation mechanical model was proposed. The evolution mechanism for the chain of events is as follows: glacial melt → loose moraine deposit → migration along the steep erosion groove resulting in glacier clastic deposition then debris flow → formation of the dam plug to block the river → the dammed lake. This sequence of events is of great significance for understanding the developmental trends for future avalanches, landslides, and river blocking dam disasters, and for disaster prevention planning and mitigation in the Qinghai–Tibet Plateau.
format Online
Article
Text
id pubmed-6926747
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-69267472019-12-24 Disaster Chain Analysis of Avalanche and Landslide and the River Blocking Dam of the Yarlung Zangbo River in Milin County of Tibet on 17 and 29 October 2018 Jia, Huicong Chen, Fang Pan, Donghua Int J Environ Res Public Health Article As a “starting zone” and “amplifier” of global climate change, the Qinghai–Tibet Plateau is very responsive to climate change. The global temperature rise has led directly to an acceleration of glacial melting in the plateau and various glacier avalanche disasters have frequently occurred. The landslide caused by glacier avalanches will damage the surrounding environment, causing secondary disasters and a disaster chain effect. Take the disaster chain of the Yarlung Zangbo River at Milin County in Tibet on 17 and 29 October 2018 as an example; a formation mechanical model was proposed. The evolution mechanism for the chain of events is as follows: glacial melt → loose moraine deposit → migration along the steep erosion groove resulting in glacier clastic deposition then debris flow → formation of the dam plug to block the river → the dammed lake. This sequence of events is of great significance for understanding the developmental trends for future avalanches, landslides, and river blocking dam disasters, and for disaster prevention planning and mitigation in the Qinghai–Tibet Plateau. MDPI 2019-11-26 2019-12 /pmc/articles/PMC6926747/ /pubmed/31779190 http://dx.doi.org/10.3390/ijerph16234707 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jia, Huicong
Chen, Fang
Pan, Donghua
Disaster Chain Analysis of Avalanche and Landslide and the River Blocking Dam of the Yarlung Zangbo River in Milin County of Tibet on 17 and 29 October 2018
title Disaster Chain Analysis of Avalanche and Landslide and the River Blocking Dam of the Yarlung Zangbo River in Milin County of Tibet on 17 and 29 October 2018
title_full Disaster Chain Analysis of Avalanche and Landslide and the River Blocking Dam of the Yarlung Zangbo River in Milin County of Tibet on 17 and 29 October 2018
title_fullStr Disaster Chain Analysis of Avalanche and Landslide and the River Blocking Dam of the Yarlung Zangbo River in Milin County of Tibet on 17 and 29 October 2018
title_full_unstemmed Disaster Chain Analysis of Avalanche and Landslide and the River Blocking Dam of the Yarlung Zangbo River in Milin County of Tibet on 17 and 29 October 2018
title_short Disaster Chain Analysis of Avalanche and Landslide and the River Blocking Dam of the Yarlung Zangbo River in Milin County of Tibet on 17 and 29 October 2018
title_sort disaster chain analysis of avalanche and landslide and the river blocking dam of the yarlung zangbo river in milin county of tibet on 17 and 29 october 2018
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6926747/
https://www.ncbi.nlm.nih.gov/pubmed/31779190
http://dx.doi.org/10.3390/ijerph16234707
work_keys_str_mv AT jiahuicong disasterchainanalysisofavalancheandlandslideandtheriverblockingdamoftheyarlungzangboriverinmilincountyoftibeton17and29october2018
AT chenfang disasterchainanalysisofavalancheandlandslideandtheriverblockingdamoftheyarlungzangboriverinmilincountyoftibeton17and29october2018
AT pandonghua disasterchainanalysisofavalancheandlandslideandtheriverblockingdamoftheyarlungzangboriverinmilincountyoftibeton17and29october2018