Shape files a data sheet for observed fluctuations of the Alerce glacier (1953-2020), North Patagonian Andes
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| Autores principales: | , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2024
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| _version_ | 1867169162100473856 |
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| author | Ghilardi Truffa, Juan Cruz Ruiz, Lucas Pitte, Pierre Clavero, Lautaro |
| author_facet | Ghilardi Truffa, Juan Cruz Ruiz, Lucas Pitte, Pierre Clavero, Lautaro |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Glaciers in the northern Patagonian Andes show the highest rate of loss of all the Andean regions for the last decade. Detailed records of long-term variations in glacier extent are crucial to put current climate change into context and quantify its impact on mountain areas. In this study presents a detailed reconstruction of the extent (length and area) of the Alerce Glacier (41.15° S-71.81° W) over the past 70 years (1953-2020). Glacier fluctuations were mapped using historical documents, aerial photography and satellite images from US KH-9 Hexagon, Landsat and Pléiades. Four distinct methodologies were applied to measure glacier front positions: i) central flow line, ii) curvilinear box, iii) multiline, and iv) variable box. Each method was assessed for its ability to capture the magnitude of front position variations accurately. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_971666 |
| institution | PANGAEA |
| language | en |
| publishDate | 2024 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Shape files a data sheet for observed fluctuations of the Alerce glacier (1953-2020), North Patagonian Andes Ghilardi Truffa, Juan Cruz Ruiz, Lucas Pitte, Pierre Clavero, Lautaro Alerce_glacier; Alerce glacier; Climate change; Glacier area changes; Glaciers; North Patagonian Andes; North Patagonian Andes, southern Chile; Satellite imagery; SATI Glaciers in the northern Patagonian Andes show the highest rate of loss of all the Andean regions for the last decade. Detailed records of long-term variations in glacier extent are crucial to put current climate change into context and quantify its impact on mountain areas. In this study presents a detailed reconstruction of the extent (length and area) of the Alerce Glacier (41.15° S-71.81° W) over the past 70 years (1953-2020). Glacier fluctuations were mapped using historical documents, aerial photography and satellite images from US KH-9 Hexagon, Landsat and Pléiades. Four distinct methodologies were applied to measure glacier front positions: i) central flow line, ii) curvilinear box, iii) multiline, and iv) variable box. Each method was assessed for its ability to capture the magnitude of front position variations accurately. |
| title | Shape files a data sheet for observed fluctuations of the Alerce glacier (1953-2020), North Patagonian Andes |
| topic | Alerce_glacier; Alerce glacier; Climate change; Glacier area changes; Glaciers; North Patagonian Andes; North Patagonian Andes, southern Chile; Satellite imagery; SATI |
| url | https://doi.org/10.1594/PANGAEA.971666 |