Dendrogeomorphic reconstruction of flash floods in the Patagonian Andes
Flash floods represent a significant natural hazard in small mountainous catchments of the Patagonian Andes and have repeatedly caused loss to life and infrastructure. At the same time, however, documentary records of past events remain fairly scarce and highly fragmentary in most cases. In this stu...
| Main Authors: | , , , , , |
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| Format: | Artículo |
| Language: | Inglés |
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Elsevier
2019
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| Online Access: | https://www.sciencedirect.com/science/article/pii/S0169555X14004309 http://hdl.handle.net/20.500.12123/4553 https://doi.org/10.1016/j.geomorph.2014.08.022 |
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| author | Casteller, Alejandro Stoffel, Markus Crespo, Sebastián Andrés Villalba, Ricardo Corona, Christophe Bianchi, Emilio |
| author_browse | Bianchi, Emilio Casteller, Alejandro Corona, Christophe Crespo, Sebastián Andrés Stoffel, Markus Villalba, Ricardo |
| author_facet | Casteller, Alejandro Stoffel, Markus Crespo, Sebastián Andrés Villalba, Ricardo Corona, Christophe Bianchi, Emilio |
| author_sort | Casteller, Alejandro |
| collection | INTA Digital |
| description | Flash floods represent a significant natural hazard in small mountainous catchments of the Patagonian Andes and have repeatedly caused loss to life and infrastructure. At the same time, however, documentary records of past events remain fairly scarce and highly fragmentary in most cases. In this study, we therefore reconstruct the spatiotemporal patterns of past flash flood activity along the Los Cipreses torrent (Neuquén, Argentina) using dendrogeomorphic methods. Based on samples from Austrocedrus chilensis, Pseudotsuga menziesii, and Nothofagus dombeyi, we document 21 flash flood events covering the period A.D. 1890–2009 and reconstruct mean recurrence intervals of events at the level of individual trees being impacted, which varies from 4 to 93 years. Results show that trees tend to be older (younger) in sectors of the torrent with gentler (steeper) slope gradients. Potential triggers of flash floods were analyzed using daily temperature and precipitation data from a nearby weather station. Weather conditions leading to flash floods are abundant precipitations during one to three consecutive days, combined with temperatures above the rain/snow threshold (2 °C) in the whole watershed. |
| format | Artículo |
| id | INTA4553 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA45532019-03-08T11:49:34Z Dendrogeomorphic reconstruction of flash floods in the Patagonian Andes Casteller, Alejandro Stoffel, Markus Crespo, Sebastián Andrés Villalba, Ricardo Corona, Christophe Bianchi, Emilio Arboles Forestales Inundación Nothofagus Austrocedrus Pseudotsuga menziesii Forest Trees Flooding Dendrogeomorfología Andes Patagónicos Región Patagónica Flash floods represent a significant natural hazard in small mountainous catchments of the Patagonian Andes and have repeatedly caused loss to life and infrastructure. At the same time, however, documentary records of past events remain fairly scarce and highly fragmentary in most cases. In this study, we therefore reconstruct the spatiotemporal patterns of past flash flood activity along the Los Cipreses torrent (Neuquén, Argentina) using dendrogeomorphic methods. Based on samples from Austrocedrus chilensis, Pseudotsuga menziesii, and Nothofagus dombeyi, we document 21 flash flood events covering the period A.D. 1890–2009 and reconstruct mean recurrence intervals of events at the level of individual trees being impacted, which varies from 4 to 93 years. Results show that trees tend to be older (younger) in sectors of the torrent with gentler (steeper) slope gradients. Potential triggers of flash floods were analyzed using daily temperature and precipitation data from a nearby weather station. Weather conditions leading to flash floods are abundant precipitations during one to three consecutive days, combined with temperatures above the rain/snow threshold (2 °C) in the whole watershed. EEA Bariloche Fil: Casteller, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Institute for Snow and Avalanche Research; Suiza Fil: Stoffel, Markus. University of Bern. Institute of Geological Sciences; Suiza. University of Geneva. Institute for Environmental Sciences; Suiza Fil: Crespo, Sebastián Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina Fil: Villalba, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina Fil: Corona, Christophe. University of Bern. Institute of Geological Sciences; Suiza Fil: Bianchi, Emilio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. 2019-03-08T11:48:27Z 2019-03-08T11:48:27Z 2015-01-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0169555X14004309 http://hdl.handle.net/20.500.12123/4553 0169-555X https://doi.org/10.1016/j.geomorph.2014.08.022 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Geomorphology 228 : 116-123 (January 2015) |
| spellingShingle | Arboles Forestales Inundación Nothofagus Austrocedrus Pseudotsuga menziesii Forest Trees Flooding Dendrogeomorfología Andes Patagónicos Región Patagónica Casteller, Alejandro Stoffel, Markus Crespo, Sebastián Andrés Villalba, Ricardo Corona, Christophe Bianchi, Emilio Dendrogeomorphic reconstruction of flash floods in the Patagonian Andes |
| title | Dendrogeomorphic reconstruction of flash floods in the Patagonian Andes |
| title_full | Dendrogeomorphic reconstruction of flash floods in the Patagonian Andes |
| title_fullStr | Dendrogeomorphic reconstruction of flash floods in the Patagonian Andes |
| title_full_unstemmed | Dendrogeomorphic reconstruction of flash floods in the Patagonian Andes |
| title_short | Dendrogeomorphic reconstruction of flash floods in the Patagonian Andes |
| title_sort | dendrogeomorphic reconstruction of flash floods in the patagonian andes |
| topic | Arboles Forestales Inundación Nothofagus Austrocedrus Pseudotsuga menziesii Forest Trees Flooding Dendrogeomorfología Andes Patagónicos Región Patagónica |
| url | https://www.sciencedirect.com/science/article/pii/S0169555X14004309 http://hdl.handle.net/20.500.12123/4553 https://doi.org/10.1016/j.geomorph.2014.08.022 |
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