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Glacial and glacially conditioned lake types in the Cordillera Blanca, Peru
| dc.contributor.author | Iturrizaga, Lasafam | |
| dc.coverage.spatial | Cordillera Blanca | |
| dc.date.accessioned | 2019-01-03T21:47:39Z | |
| dc.date.available | 2019-01-03T21:47:39Z | |
| dc.date.issued | 2014-10 | |
| dc.identifier.citation | Iturrizaga, L. (2014) Glacial and glacially conditioned lake types in the Cordillera Blanca, Peru. Progress in Physical Geography, 38(5), 602-636. doi: https://doi.org/10.1177/0309133314546344 | es_PE |
| dc.identifier.issn | ISSN: 0309-1333, ESSN: 1477-0296 | es_PE |
| dc.identifier.uri | https://hdl.handle.net/20.500.12543/3195 | |
| dc.description | Original abstract: The article presents a conceptual approach for the spatiotemporal distribution pattern of principal lake types in the context of the glaciation history in the Cordillera Blanca. The tropical mountain range hosts one of the main concentrations of proglacial lakes in high-mountain settings worldwide, which have formed as a result of the dominant trend of modern glacier retreat. In the 20th century, glacial lake outbursts have severely affected large settlement areas in the Rio Santa Basin. Additionally to the striking newly emerged lakes, geomorphological evidence of paleolakes is found throughout the middle and lower valley sections. Based on empirical data from field research in over 20 valleys and the analysis of air and satellite images, the study provides a genetic classification of major lake types and a generalized model for the distribution of the present lakes and paleolakes. The origin of the lakes and their recurrent distribution pattern are associated with the individual stages of the Pleistocene to modern glaciation and their corresponding geomorphological landforms. Apart from the individual lake, the focus is put on the spatial arrangement of the lakes to each other based on a holistic landscape assessment. Implications are drawn for the hazard potential, in particular in terms of outburst cascades involving two or more lakes. On a supraregional scale, a clustering of certain lake types occurs in different mountain ranges of the Andes according to their specific topographical and glaciological settings. Even though the glaciated areas have all been subject to major ice losses, only some mountain regions are prone to form moraine-dammed lakes such as in the Cordillera Blanca. The key controlling factors for their formation are highlighted from a glacial-geomorphological point of view. The distribution of principal types of glacial lakes is outlined in a N–S profile along the Andes. | es_PE |
| dc.description | Artículo en período de embargo | es_PE |
| dc.description.abstract | Presenta un enfoque conceptual para el patrón de distribución espacio temporal de los principales tipos de lagos en el contexto de la historia de la glaciación en la Cordillera Blanca. La cordillera tropical alberga una de las principales concentraciones de lagos proglaciales en entornos de alta montaña en todo el mundo, que se han formado como resultado de la tendencia dominante del retiro moderno de glaciares. Basado en datos empíricos de investigaciones de campo en más de 20 valles y en el análisis de imágenes aéreas y satelitales, el estudio proporciona una clasificación genética de los principales tipos de lagos y un modelo generalizado para la distribución de los lagos. | es_PE |
| dc.format | application/pdf | es_PE |
| dc.language.iso | eng | es_PE |
| dc.publisher | Sage | es_PE |
| dc.relation.ispartofseries | Progress in Physical Geography, October 2014, Volume 38, Issue 5 pp 602-636 | es_PE |
| dc.relation.uri | https://journals.sagepub.com/doi/abs/10.1177/0309133314546344 | |
| dc.rights | info:eu-repo/semantics/closedAccess | es_PE |
| dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
| dc.source | Autoridad Nacional del Agua | es_PE |
| dc.source | Repositorio institucional - ANA | es_PE |
| dc.subject | Inventarios y evaluación de ecosistemas proveedores de agua | es_PE |
| dc.subject | Monitoreo de lagunas y glaciares | es_PE |
| dc.title | Glacial and glacially conditioned lake types in the Cordillera Blanca, Peru | es_PE |
| dc.type | info:eu-repo/semantics/article | es_PE |
| dc.identifier.doi | https://doi.org/10.1177/0309133314546344 | es_PE |
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