干旱区生态环境知识资源中心(Arid): The March 2015 catastrophic flood event and its impacts in the city of Copiapo (southern Atacama Desert). An integrated analysis to mitigate future mudflow derived damages

Arid

DOI	10.1016/j.jsames.2020.102975
	The March 2015 catastrophic flood event and its impacts in the city of Copiapo (southern Atacama Desert). An integrated analysis to mitigate future mudflow derived damages
	Izquierdo, Tatiana; Abad, Manuel; Gomez, Yolanda; Gallardo, Diego; Rodriguez-Vidal, Joaquin
通讯作者	Izquierdo, T (corresponding author), Univ Atacama IDICTEC UDA, Inst Invest Cient & Tecnol, Ave Copayapu 485, Copiapo, Chile.
来源期刊	JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
ISSN	0895-9811
EISSN	1873-0647
出版年	2021
卷号	105
英文摘要	The March 2015 extraordinary hydrometeomlogical event in the Andes cordillera caused severe floods in the southern Atacama Desert. One of the most affected cities was CopiapO (northern Chile) located downstream of the junction between the CopiapO river and its ephemeral tributary Quebrada Paipote. This work analyses the features of this catastrophic flood and relates them with the identified impacts. A large volume of water mixed with fine sediments overflowed the tributary channel generating a flood that affected 72% of the urban area. The rheological (velocity, density and flow regime) and sedimentary features of the flow reveal the occurrence of massive mudflows that infilled the space available inside the buildings, buried the streets with a sandy mud deposit of more than 30 cm medium thickness and collapsed the sewer network. The post-event survey carried out by the Ministry of Housing and Urban Planning (MINVU) was used for the development of fragility curves that allows modelling the probability of damage. Results indicate that the greatest probability of building damage is generated by the accumulation of sediments instead of by the flow depth. On the other hand, once the very fine grain sediments of the top of the deposit dried up, it increased the concentration of post-event suspension particulate matter, causing a health issue. This work highlights the need to understand mudflow processes and their consequences in arid environments to improve urban planning and mitigate future damages since their impacts strongly affect infrastructures and communities.
英文关键词	Mudflow Urban flood Sediment Rheology Fragility curve Southern Atacama Desert
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000607537200002
WOS关键词	PHYSICAL VULNERABILITY ; DEBRIS FLOW ; RISK ; CHILE ; BASIN ; CLASSIFICATION ; PRECIPITATION ; RECOGNITION ; GENERATION ; BUILDINGS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348039
作者单位	[Izquierdo, Tatiana] Univ Atacama IDICTEC UDA, Inst Invest Cient & Tecnol, Ave Copayapu 485, Copiapo, Chile; [Abad, Manuel] Univ Rey Juan Carlos, ESCET, Dept Biol & Geol Fis & Quim Inorgan, C Tulipan S-N, Mostoles 28933, Spain; [Gomez, Yolanda; Gallardo, Diego] Univ Atacama, Fac Ingn, Dept Matemat, Ave Copayapu 485, Copiapo, Chile; [Rodriguez-Vidal, Joaquin] Univ Huelva, Dept Ciencias Tierra, Avenida 3 Marzo S-N, Huelva 21007, Spain
推荐引用方式 GB/T 7714	Izquierdo, Tatiana,Abad, Manuel,Gomez, Yolanda,et al. The March 2015 catastrophic flood event and its impacts in the city of Copiapo (southern Atacama Desert). An integrated analysis to mitigate future mudflow derived damages[J],2021,105.
APA	Izquierdo, Tatiana,Abad, Manuel,Gomez, Yolanda,Gallardo, Diego,&Rodriguez-Vidal, Joaquin.(2021).The March 2015 catastrophic flood event and its impacts in the city of Copiapo (southern Atacama Desert). An integrated analysis to mitigate future mudflow derived damages.JOURNAL OF SOUTH AMERICAN EARTH SCIENCES,105.
MLA	Izquierdo, Tatiana,et al."The March 2015 catastrophic flood event and its impacts in the city of Copiapo (southern Atacama Desert). An integrated analysis to mitigate future mudflow derived damages".JOURNAL OF SOUTH AMERICAN EARTH SCIENCES 105(2021).