Publication: Landsystem analysis of a tropical moraine-dammed supraglacial lake, Llaca Lake, Cordillera Blanca, Perú
| dc.date.accessioned | 2024-09-08T08:13:02Z | |
| dc.date.available | 2024-09-08T08:13:02Z | |
| dc.date.issued | 2023-04-01 | |
| dc.description.abstract | Tropical glaciers of the Cordillera Blanca, Perú are rapidly thinning and retreating as a result of climate warming. The retreat of these glaciers along narrow linear bedrock valleys has increased the number and size of moraine-dammed glacial lakes formed in the valleys. This study aims to identify the geomorphological and sedimentological characteristics of an enlarging moraine-dammed supraglacial lake (Llaca Lake) in the Cordillera Blanca. Field-based sedimentological observations and geomorphological mapping were combined with remotely sensed data and a photogrammetric model derived from aerial surveys by an uncrewed aerial vehicle to identify landform-sediment assemblages. The geomorphological and sedimentological characteristics of Llaca Lake are synthesized into three landsystem zones: Zone 1: distal portions of Llaca Lake and the latero-frontal moraine; Zone 2: the central zone of ice-cored hummocks; and Zone 3: the active glacier margin. These zones are differentiated based on the spatial distribution of landforms, sediments, and active geomorphological processes. This is the first study to describe the landform-sediment assemblages in a tropical moraine-dammed supraglacial lake system and provides a framework for further landsystem element analysis of these growing supraglacial lakes in rapidly deglaciating high-altitude environments. | |
| dc.identifier.doi | 10.1111/bor.12611 | |
| dc.identifier.scopus | 2-s2.0-85147207073 | |
| dc.identifier.uri | https://dev.cris.inaigem.gob.pe/handle/123456789/439 | |
| dc.relation.issn | 03009483 | |
| dc.title | Landsystem analysis of a tropical moraine-dammed supraglacial lake, Llaca Lake, Cordillera Blanca, Perú | |
| dc.type | Journal | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 293 | |
| oaire.citation.issue | 2 | |
| oaire.citation.startPage | 272 | |
| oaire.citation.volume | 52 |
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