GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impacts

Autores
Quesada, Agustín; Colavitto, Bruno
Año de publicación
2022
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The Turbio river valley can be described as a paraglacial landscape with wide floodplainsand glaciers relicts in its headwaters. High-energy events, frequent but not cyclic, haveeffects on the geomorphological and biological evolution of the basin. Our study focuseson a glacial lake outburst flood (GLOF) that occurred in June 2017 in one of the upperbasin tributaries. Based on satellite images and local stakeholder’s information, the outburstoccurred between June 25th-26th. During those days, a rockslide from the southern slopeof the valley reached the lake (42,28°S; 72,13ºW), emptying it completely. The resultinghigh-energy flow eroded the lateral banks of the Turbio river valley and left a large debriscorridor extending more than 7 km. The torrent flood overbanks the lower fluvial plain andreached the fan delta of Puelo lake. Wood debris accumulations (Fitzroya cupressoides)were found along the Lake. A rural house was destroyed and trouts (Onchorynchus mykiss)were found dead. A few days before the event, a 3-day cumulative rainfall >80 mm wasdetected, associated with a cut-off low structure developed over the southeastern Pacific.Subsequently, on June 25th, a Mw 4.9 earthquake occurred 12 km from the lake, with adepth <13 km. In this case, the rockslide induced by weather (rainfall) or seismic conditions,or both combined, may have been sufficient to trigger a GLOF. An example is the Valdiviamega-earthquake of May 1960, in which outburst flood and avulsion processes werereported in the same lower basin. We suggest that continuous monitoring of glacial lakesand related hazards in this region is important, despite being sparsely populated. In addition,we recognize that the low anthropization degree of the Turbio river provides an excellentopportunity to study GLOFs and their geomorphic effects in the north Patagonian Andes.
Fil: Quesada, Agustín. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Patagonia Norte. Instituto de Investigaciones En Recursos Naturales, Agroecologia y Desarrollo Rural. - Universidad Nacional de Rio Negro. Instituto de Investigaciones En Recursos Naturales, Agroecologia y Desarrollo Rural.; Argentina
Fil: Colavitto, Bruno. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina. University Of Geneva (ug);
International Association of Limnogeology and International Paleolimnology Association: Lakes, Memories of the Landscape
San Carlos de Bariloche
Argentina
International Paleolimnology Association
International Association of Limnogeology
Materia
GLACIAL LAKE OUTBURST FLOOD
PARAGLACIAL
CHUBUT
ANDEAN RANGE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/235623
Acceder
id CONICETDig_fc9865b3ba677aa3d2820613f8f1b0dd
oai_identifier_str oai:ri.conicet.gov.ar:11336/235623
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impactsQuesada, AgustínColavitto, BrunoGLACIAL LAKE OUTBURST FLOODPARAGLACIALCHUBUTANDEAN RANGEhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Turbio river valley can be described as a paraglacial landscape with wide floodplainsand glaciers relicts in its headwaters. High-energy events, frequent but not cyclic, haveeffects on the geomorphological and biological evolution of the basin. Our study focuseson a glacial lake outburst flood (GLOF) that occurred in June 2017 in one of the upperbasin tributaries. Based on satellite images and local stakeholder’s information, the outburstoccurred between June 25th-26th. During those days, a rockslide from the southern slopeof the valley reached the lake (42,28°S; 72,13ºW), emptying it completely. The resultinghigh-energy flow eroded the lateral banks of the Turbio river valley and left a large debriscorridor extending more than 7 km. The torrent flood overbanks the lower fluvial plain andreached the fan delta of Puelo lake. Wood debris accumulations (Fitzroya cupressoides)were found along the Lake. A rural house was destroyed and trouts (Onchorynchus mykiss)were found dead. A few days before the event, a 3-day cumulative rainfall >80 mm wasdetected, associated with a cut-off low structure developed over the southeastern Pacific.Subsequently, on June 25th, a Mw 4.9 earthquake occurred 12 km from the lake, with adepth <13 km. In this case, the rockslide induced by weather (rainfall) or seismic conditions,or both combined, may have been sufficient to trigger a GLOF. An example is the Valdiviamega-earthquake of May 1960, in which outburst flood and avulsion processes werereported in the same lower basin. We suggest that continuous monitoring of glacial lakesand related hazards in this region is important, despite being sparsely populated. In addition,we recognize that the low anthropization degree of the Turbio river provides an excellentopportunity to study GLOFs and their geomorphic effects in the north Patagonian Andes.Fil: Quesada, Agustín. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Patagonia Norte. Instituto de Investigaciones En Recursos Naturales, Agroecologia y Desarrollo Rural. - Universidad Nacional de Rio Negro. Instituto de Investigaciones En Recursos Naturales, Agroecologia y Desarrollo Rural.; ArgentinaFil: Colavitto, Bruno. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina. University Of Geneva (ug);International Association of Limnogeology and International Paleolimnology Association: Lakes, Memories of the LandscapeSan Carlos de BarilocheArgentinaInternational Paleolimnology AssociationInternational Association of LimnogeologyInternational Association of Limnogeology; International Paleolimnology Association2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectConferenciaBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/235623GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impacts; International Association of Limnogeology and International Paleolimnology Association: Lakes, Memories of the Landscape ; San Carlos de Bariloche; Argentina; 2022; 16-16CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://zenodo.org/records/7305148info:eu-repo/semantics/altIdentifier/doi/10.5281/zenodo.7305148Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:42:30Zoai:ri.conicet.gov.ar:11336/235623instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:42:31.158CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impacts
title GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impacts
spellingShingle GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impacts
Quesada, Agustín
GLACIAL LAKE OUTBURST FLOOD
PARAGLACIAL
CHUBUT
ANDEAN RANGE
title_short GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impacts
title_full GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impacts
title_fullStr GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impacts
title_full_unstemmed GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impacts
title_sort GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impacts
dc.creator.none.fl_str_mv Quesada, Agustín
Colavitto, Bruno
author Quesada, Agustín
author_facet Quesada, Agustín
Colavitto, Bruno
author_role author
author2 Colavitto, Bruno
author2_role author
dc.subject.none.fl_str_mv GLACIAL LAKE OUTBURST FLOOD
PARAGLACIAL
CHUBUT
ANDEAN RANGE
topic GLACIAL LAKE OUTBURST FLOOD
PARAGLACIAL
CHUBUT
ANDEAN RANGE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Turbio river valley can be described as a paraglacial landscape with wide floodplainsand glaciers relicts in its headwaters. High-energy events, frequent but not cyclic, haveeffects on the geomorphological and biological evolution of the basin. Our study focuseson a glacial lake outburst flood (GLOF) that occurred in June 2017 in one of the upperbasin tributaries. Based on satellite images and local stakeholder’s information, the outburstoccurred between June 25th-26th. During those days, a rockslide from the southern slopeof the valley reached the lake (42,28°S; 72,13ºW), emptying it completely. The resultinghigh-energy flow eroded the lateral banks of the Turbio river valley and left a large debriscorridor extending more than 7 km. The torrent flood overbanks the lower fluvial plain andreached the fan delta of Puelo lake. Wood debris accumulations (Fitzroya cupressoides)were found along the Lake. A rural house was destroyed and trouts (Onchorynchus mykiss)were found dead. A few days before the event, a 3-day cumulative rainfall >80 mm wasdetected, associated with a cut-off low structure developed over the southeastern Pacific.Subsequently, on June 25th, a Mw 4.9 earthquake occurred 12 km from the lake, with adepth <13 km. In this case, the rockslide induced by weather (rainfall) or seismic conditions,or both combined, may have been sufficient to trigger a GLOF. An example is the Valdiviamega-earthquake of May 1960, in which outburst flood and avulsion processes werereported in the same lower basin. We suggest that continuous monitoring of glacial lakesand related hazards in this region is important, despite being sparsely populated. In addition,we recognize that the low anthropization degree of the Turbio river provides an excellentopportunity to study GLOFs and their geomorphic effects in the north Patagonian Andes.
Fil: Quesada, Agustín. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Patagonia Norte. Instituto de Investigaciones En Recursos Naturales, Agroecologia y Desarrollo Rural. - Universidad Nacional de Rio Negro. Instituto de Investigaciones En Recursos Naturales, Agroecologia y Desarrollo Rural.; Argentina
Fil: Colavitto, Bruno. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina. University Of Geneva (ug);
International Association of Limnogeology and International Paleolimnology Association: Lakes, Memories of the Landscape
San Carlos de Bariloche
Argentina
International Paleolimnology Association
International Association of Limnogeology
description The Turbio river valley can be described as a paraglacial landscape with wide floodplainsand glaciers relicts in its headwaters. High-energy events, frequent but not cyclic, haveeffects on the geomorphological and biological evolution of the basin. Our study focuseson a glacial lake outburst flood (GLOF) that occurred in June 2017 in one of the upperbasin tributaries. Based on satellite images and local stakeholder’s information, the outburstoccurred between June 25th-26th. During those days, a rockslide from the southern slopeof the valley reached the lake (42,28°S; 72,13ºW), emptying it completely. The resultinghigh-energy flow eroded the lateral banks of the Turbio river valley and left a large debriscorridor extending more than 7 km. The torrent flood overbanks the lower fluvial plain andreached the fan delta of Puelo lake. Wood debris accumulations (Fitzroya cupressoides)were found along the Lake. A rural house was destroyed and trouts (Onchorynchus mykiss)were found dead. A few days before the event, a 3-day cumulative rainfall >80 mm wasdetected, associated with a cut-off low structure developed over the southeastern Pacific.Subsequently, on June 25th, a Mw 4.9 earthquake occurred 12 km from the lake, with adepth <13 km. In this case, the rockslide induced by weather (rainfall) or seismic conditions,or both combined, may have been sufficient to trigger a GLOF. An example is the Valdiviamega-earthquake of May 1960, in which outburst flood and avulsion processes werereported in the same lower basin. We suggest that continuous monitoring of glacial lakesand related hazards in this region is important, despite being sparsely populated. In addition,we recognize that the low anthropization degree of the Turbio river provides an excellentopportunity to study GLOFs and their geomorphic effects in the north Patagonian Andes.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Conferencia
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/235623
GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impacts; International Association of Limnogeology and International Paleolimnology Association: Lakes, Memories of the Landscape ; San Carlos de Bariloche; Argentina; 2022; 16-16
CONICET Digital
CONICET
url http://hdl.handle.net/11336/235623
identifier_str_mv GLOF event in the Turbio river basin in June 2017 (North Patagonian Andean Range, NW Chubut, Argentina): triggers and impacts; International Association of Limnogeology and International Paleolimnology Association: Lakes, Memories of the Landscape ; San Carlos de Bariloche; Argentina; 2022; 16-16
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://zenodo.org/records/7305148
info:eu-repo/semantics/altIdentifier/doi/10.5281/zenodo.7305148
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv International Association of Limnogeology; International Paleolimnology Association
publisher.none.fl_str_mv International Association of Limnogeology; International Paleolimnology Association
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613339356856320
score 13.070432

Publicaciones similares