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Statements

Subject Item
n2:RIV%2F67985891%3A_____%2F14%3A00429277%21RIV15-GA0-67985891
rdf:type
skos:Concept n14:Vysledek
dcterms:description
Cordillera Blanca is the heaviest glacierized tropical range in the world. Due to the global climate change, most of glaciers are retreating and thinning. Glacier retreat leads to the formation and development of all types of potentially hazardous glacial lakes (bedrock-dammed, moraine-dammed, and ice-dammed). Potential hazardousness of glacial lakes is strongly interconnected with dynamic slope movements: (1) sudden release of water from glacial lakes (also known as glacial lake outburst floods-GLOF) is mainly caused by dynamic slope movement into the lake (about 80 % in the Cordillera Blanca); (2) released water may easily transform into debris-flow or mud-flow, thanks to its high erosion and transport potential. Based on field study and remotely sensed images, this contribution documents glacier retreat in the Cordillera Blanca with regards to formation and development of new potentially hazardous glacial lakes, which evolve mainly in elevations of about 4,600-5,000 m a.s.l. We introduce and describe three hazardous events associated with glacier retreat in the last decade: (a) sudden release of water from moraine-dammed Lake Palcacocha in 2003; (b) sudden release of water from bedrock-dammed lake No. 513 in 2010; and (c) sudden release of water from bedrock-dammed Lake Artizon Alto and subsequent moraine dam failure of downstream situated Lake Artizon Bajo in 2012. The first and third events were caused by landslides of lateral moraines (which are often nonconsolidated and nearly vertical) into the lakes. The second event was caused by ice- and rockfall into the lake. These events illustrate that various natural hazards (dynamic slope movements, floods) associated with glacier retreat in the Cordillera Blanca are closely linked and represent actual threats to urbanization and safety of lives and property. Cordillera Blanca is the heaviest glacierized tropical range in the world. Due to the global climate change, most of glaciers are retreating and thinning. Glacier retreat leads to the formation and development of all types of potentially hazardous glacial lakes (bedrock-dammed, moraine-dammed, and ice-dammed). Potential hazardousness of glacial lakes is strongly interconnected with dynamic slope movements: (1) sudden release of water from glacial lakes (also known as glacial lake outburst floods-GLOF) is mainly caused by dynamic slope movement into the lake (about 80 % in the Cordillera Blanca); (2) released water may easily transform into debris-flow or mud-flow, thanks to its high erosion and transport potential. Based on field study and remotely sensed images, this contribution documents glacier retreat in the Cordillera Blanca with regards to formation and development of new potentially hazardous glacial lakes, which evolve mainly in elevations of about 4,600-5,000 m a.s.l. We introduce and describe three hazardous events associated with glacier retreat in the last decade: (a) sudden release of water from moraine-dammed Lake Palcacocha in 2003; (b) sudden release of water from bedrock-dammed lake No. 513 in 2010; and (c) sudden release of water from bedrock-dammed Lake Artizon Alto and subsequent moraine dam failure of downstream situated Lake Artizon Bajo in 2012. The first and third events were caused by landslides of lateral moraines (which are often nonconsolidated and nearly vertical) into the lakes. The second event was caused by ice- and rockfall into the lake. These events illustrate that various natural hazards (dynamic slope movements, floods) associated with glacier retreat in the Cordillera Blanca are closely linked and represent actual threats to urbanization and safety of lives and property.
dcterms:title
Glacier Retreat, Lakes Development and Associated Natural Hazards in Cordilera Blanca, Peru Glacier Retreat, Lakes Development and Associated Natural Hazards in Cordilera Blanca, Peru
skos:prefLabel
Glacier Retreat, Lakes Development and Associated Natural Hazards in Cordilera Blanca, Peru Glacier Retreat, Lakes Development and Associated Natural Hazards in Cordilera Blanca, Peru
skos:notation
RIV/67985891:_____/14:00429277!RIV15-GA0-67985891
n3:aktivita
n15:P n15:I
n3:aktivity
I, P(GAP209/11/1000)
n3:dodaniDat
n7:2015
n3:domaciTvurceVysledku
n4:7489706
n3:druhVysledku
n11:C
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
18374
n3:idVysledku
RIV/67985891:_____/14:00429277
n3:jazykVysledku
n10:eng
n3:klicovaSlova
natural hazards; glacier retreat; dynamic slope movements; GLOFs
n3:klicoveSlovo
n6:natural%20hazards n6:dynamic%20slope%20movements n6:GLOFs n6:glacier%20retreat
n3:kontrolniKodProRIV
[A4DEDCB4D7A7]
n3:mistoVydani
New York
n3:nazevEdiceCisloSvazku
Environmental Science and Engineering: Environmental Engineering
n3:nazevZdroje
Landslides in Cold Regions in the Context of Climate Change
n3:obor
n20:DE
n3:pocetDomacichTvurcuVysledku
1
n3:pocetStranKnihy
300
n3:pocetTvurcuVysledku
4
n3:projekt
n8:GAP209%2F11%2F1000
n3:rokUplatneniVysledku
n7:2014
n3:tvurceVysledku
Vilímek, V. Emmer, A. Cochachin, A. Klimeš, Jan
s:numberOfPages
22
n16:doi
10.1007/978-3-319-00867-7_17
n18:hasPublisher
Springer-Verlag
n13:isbn
978-3-319-00866-0