Small outbursts into big disasters: Earthquakes exacerbate climate-driven cascade processes of the glacial lakes failure in the Himalayas

Primer Autor
Chen, Ningsheng
Co-autores
Liu, Mei
Allen, Simon
Deng, Mingfeng
Khanal, Narendra Raj
Peng, Taixin
Tian, Shufeng
Huggel, Christian
Wu, Kanglin
Rahman, Mahfuzur
Somos-Valenzuela, Marcelo
Título
Small outbursts into big disasters: Earthquakes exacerbate climate-driven cascade processes of the glacial lakes failure in the Himalayas
Editorial
ELSEVIER
Revista
GEOMORPHOLOGY
Lenguaje
en
Resumen
Risk assessments for potential glacial lake outburst floods (GLOFs) are primarily focused on large, rapidly expanding lakes. However, the mechanism of cascading hazards that cause small outbursts to transition into big disasters is poorly understood. We investigated the Gongbatongshaco GLOF in the Himalayas, to reveal a novel disaster model and mechanism, considering increasing regional temperature, glacial lake area, and glacial retreat. Global warming drives glacial retreat, and uncover loose sediment that can be mobilized as debris flows, triggering small glacial lake outbursts in high mountain regions. Sediment generated from earthquake-induced landslides exacerbates the flow magnitude in a valley to increase the disaster risk. Concentrations of in-habitants located in these areas are subject to socioeconomic vulnerability, leading to post-disaster poverty within these communities. A reasonable GLOFs resilient mitigation framework is proposed. The results offer new insights into risk assessment, especially for small glacial lakes in tectonically-active high mountain environments influenced by climate change and earthquake activity.
Fecha Publicación
2023
Tipo de Recurso
artículo original
doi
10.1016/j.geomorph.2022.108539
Formato Recurso
PDF
Palabras Claves
GLOFs
Cascade Processes
Big disasters
Resilient
Numerical modeling
Ubicación del archivo
http://dx.doi.org/10.1016/j.geomorph.2022.108539
Categoría OCDE
Geografía Física
Geología
Materias
GLOF
Procesos en Cascada
Grandes desastres
Resiliente
Modelado numérico
Identificador del recurso (Mandatado-único)
artículo original
Versión del recurso (Recomendado-único)
versión publicada
Derechos de acceso
metadata
Access Rights
metadata
Id de Web of Science
WOS:000899388600001
ISSN
0169-555X
Tipo de ruta
hibrida
Categoría WOS
Geografía Física
Geología
Colecciones
Colección Publicaciones Científicas
Colección ANID
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