Multi-temporal analysis between 1975 and 2015 on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru
Descripción del Articulo
The objective of the study was the multi-temporal analysis between 1975 and 2015, on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru. The area covered by glaciers was estimated using the supervised classification method for Landsat 2 image and the normalized difference sn...
| Autores: | , , , |
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| Formato: | artículo |
| Fecha de Publicación: | 2017 |
| Institución: | Universidad Nacional del Altiplano |
| Repositorio: | Revistas Universidad Nacional del Altiplano |
| Lenguaje: | español |
| OAI Identifier: | oai:huajsapata.unap.edu.pe:article/151 |
| Enlace del recurso: | https://huajsapata.unap.edu.pe/index.php/ria/article/view/151 |
| Nivel de acceso: | acceso abierto |
| Materia: | Climate change cordillera of Carabaya NDSI glacier retreat Cambio climático cordillera del Carabaya retroceso glaciar |
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Revistas Universidad Nacional del Altiplano |
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Multi-temporal analysis between 1975 and 2015 on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, PeruAnálisis multi-temporal entre 1975 y 2015 sobre cambios de la cobertura glaciar en los nevados Allin Capac y Chichi Capac, PerúDíaz Aguilar, Renny Daniel Sanchez Larico, Samantha Vanessa Lujano Laura, Efrain Lujano Laura, ApolinarioClimate changecordillera of CarabayaNDSIglacier retreatCambio climáticocordillera del CarabayaNDSIretroceso glaciarThe objective of the study was the multi-temporal analysis between 1975 and 2015, on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru. The area covered by glaciers was estimated using the supervised classification method for Landsat 2 image and the normalized difference snow index for Landsat 5 and Landsat 8 images. The results of the analysis show a drastic decrease of the glacier cover in the snowy Allin Capac and Chichi Capac. Thus, in 1975 the area of glacier coverage was 52.3 km2 and by 2015 was reduced to 16.9 km2, losing a total of 35.6 km2. In 1975, the 35% of the glacier coverage was below the 5000 m.a.s.l. and by the 2015 it represents only 9% of the total glacier area. The greatest setback is evident in the last three decades of the 20th century, with a smaller decline during the first two decades of the 21th century. It is concluded that in the last 40 years, the glacier cover of the snowy Allin Capac and Chichi Capac shows a reduction of 67%, equivalent to a decrease of 17% per decade and an average rate of 0.89 km2 / year. El objetivo del estudio fue el análisis multi-temporal entre 1975 y 2015, sobre cambios de la cobertura glaciar en los nevados Allin Capac y Chichi Capac, Perú. Se estimó el área cubierta por glaciares utilizando el método de clasificación supervisada para imagen Landsat 2 e índice de diferencia normalizada de nieve para imágenes Landsat 5 y Landsat 8. Los resultados del análisis, muestra una disminución drástica de la cobertura glaciar en los nevados Allin Capac y Chichi Capac. Es así que, en 1975 el área de cobertura glaciar fue de 52.3 km2 y para el año 2015 se redujo a 16.9 km2, perdiendo en total 35.6 km2. En 1975 el 35% de la cobertura glaciar se encontraba debajo de la cota 5000 m.s.n.m., para el año 2015 solo representa el 9% del total de área glaciar. El mayor retroceso, se evidencia entre las tres últimas décadas del siglo XX, con una menor disminución durante las dos primeras décadas del siglo XXI. Se concluye que, en los últimos 40 años, la cobertura glaciar de los nevados Allin Capac y Chichi Capac presenta una reducción del 67%, equivalente a una disminución de 17% por década y una tasa promedio de 0.89 km2/año. Universidad Nacional del Altiplano de Puno2017-09-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://huajsapata.unap.edu.pe/index.php/ria/article/view/151Revista de Investigaciones Altoandinas; Vol. 19 No. 3 (2017); 264-274Revista de Investigaciones Altoandinas; Vol. 19 Núm. 3 (2017); 264-2742313-29572306-8582reponame:Revistas Universidad Nacional del Altiplanoinstname:Universidad Nacional del Altiplanoinstacron:UNAPspahttps://huajsapata.unap.edu.pe/index.php/ria/article/view/151/131Copyright (c) 2020 Revista de Investigaciones Altoandinasinfo:eu-repo/semantics/openAccess2021-10-07T15:14:27Zmail@mail.com - |
| dc.title.none.fl_str_mv |
Multi-temporal analysis between 1975 and 2015 on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru Análisis multi-temporal entre 1975 y 2015 sobre cambios de la cobertura glaciar en los nevados Allin Capac y Chichi Capac, Perú |
| title |
Multi-temporal analysis between 1975 and 2015 on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru |
| spellingShingle |
Multi-temporal analysis between 1975 and 2015 on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru Díaz Aguilar, Renny Daniel Climate change cordillera of Carabaya NDSI glacier retreat Cambio climático cordillera del Carabaya NDSI retroceso glaciar |
| title_short |
Multi-temporal analysis between 1975 and 2015 on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru |
| title_full |
Multi-temporal analysis between 1975 and 2015 on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru |
| title_fullStr |
Multi-temporal analysis between 1975 and 2015 on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru |
| title_full_unstemmed |
Multi-temporal analysis between 1975 and 2015 on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru |
| title_sort |
Multi-temporal analysis between 1975 and 2015 on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru |
| dc.creator.none.fl_str_mv |
Díaz Aguilar, Renny Daniel Sanchez Larico, Samantha Vanessa Lujano Laura, Efrain Lujano Laura, Apolinario |
| author |
Díaz Aguilar, Renny Daniel |
| author_facet |
Díaz Aguilar, Renny Daniel Sanchez Larico, Samantha Vanessa Lujano Laura, Efrain Lujano Laura, Apolinario |
| author_role |
author |
| author2 |
Sanchez Larico, Samantha Vanessa Lujano Laura, Efrain Lujano Laura, Apolinario |
| author2_role |
author author author |
| dc.subject.none.fl_str_mv |
Climate change cordillera of Carabaya NDSI glacier retreat Cambio climático cordillera del Carabaya NDSI retroceso glaciar |
| topic |
Climate change cordillera of Carabaya NDSI glacier retreat Cambio climático cordillera del Carabaya NDSI retroceso glaciar |
| dc.description.none.fl_txt_mv |
The objective of the study was the multi-temporal analysis between 1975 and 2015, on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru. The area covered by glaciers was estimated using the supervised classification method for Landsat 2 image and the normalized difference snow index for Landsat 5 and Landsat 8 images. The results of the analysis show a drastic decrease of the glacier cover in the snowy Allin Capac and Chichi Capac. Thus, in 1975 the area of glacier coverage was 52.3 km2 and by 2015 was reduced to 16.9 km2, losing a total of 35.6 km2. In 1975, the 35% of the glacier coverage was below the 5000 m.a.s.l. and by the 2015 it represents only 9% of the total glacier area. The greatest setback is evident in the last three decades of the 20th century, with a smaller decline during the first two decades of the 21th century. It is concluded that in the last 40 years, the glacier cover of the snowy Allin Capac and Chichi Capac shows a reduction of 67%, equivalent to a decrease of 17% per decade and an average rate of 0.89 km2 / year. El objetivo del estudio fue el análisis multi-temporal entre 1975 y 2015, sobre cambios de la cobertura glaciar en los nevados Allin Capac y Chichi Capac, Perú. Se estimó el área cubierta por glaciares utilizando el método de clasificación supervisada para imagen Landsat 2 e índice de diferencia normalizada de nieve para imágenes Landsat 5 y Landsat 8. Los resultados del análisis, muestra una disminución drástica de la cobertura glaciar en los nevados Allin Capac y Chichi Capac. Es así que, en 1975 el área de cobertura glaciar fue de 52.3 km2 y para el año 2015 se redujo a 16.9 km2, perdiendo en total 35.6 km2. En 1975 el 35% de la cobertura glaciar se encontraba debajo de la cota 5000 m.s.n.m., para el año 2015 solo representa el 9% del total de área glaciar. El mayor retroceso, se evidencia entre las tres últimas décadas del siglo XX, con una menor disminución durante las dos primeras décadas del siglo XXI. Se concluye que, en los últimos 40 años, la cobertura glaciar de los nevados Allin Capac y Chichi Capac presenta una reducción del 67%, equivalente a una disminución de 17% por década y una tasa promedio de 0.89 km2/año. |
| description |
The objective of the study was the multi-temporal analysis between 1975 and 2015, on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru. The area covered by glaciers was estimated using the supervised classification method for Landsat 2 image and the normalized difference snow index for Landsat 5 and Landsat 8 images. The results of the analysis show a drastic decrease of the glacier cover in the snowy Allin Capac and Chichi Capac. Thus, in 1975 the area of glacier coverage was 52.3 km2 and by 2015 was reduced to 16.9 km2, losing a total of 35.6 km2. In 1975, the 35% of the glacier coverage was below the 5000 m.a.s.l. and by the 2015 it represents only 9% of the total glacier area. The greatest setback is evident in the last three decades of the 20th century, with a smaller decline during the first two decades of the 21th century. It is concluded that in the last 40 years, the glacier cover of the snowy Allin Capac and Chichi Capac shows a reduction of 67%, equivalent to a decrease of 17% per decade and an average rate of 0.89 km2 / year. |
| publishDate |
2017 |
| dc.date.none.fl_str_mv |
2017-09-27 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://huajsapata.unap.edu.pe/index.php/ria/article/view/151 |
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https://huajsapata.unap.edu.pe/index.php/ria/article/view/151 |
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spa |
| language |
spa |
| dc.relation.none.fl_str_mv |
https://huajsapata.unap.edu.pe/index.php/ria/article/view/151/131 |
| dc.rights.none.fl_str_mv |
Copyright (c) 2020 Revista de Investigaciones Altoandinas info:eu-repo/semantics/openAccess |
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Copyright (c) 2020 Revista de Investigaciones Altoandinas |
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openAccess |
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application/pdf |
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Universidad Nacional del Altiplano de Puno |
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Universidad Nacional del Altiplano de Puno |
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Revista de Investigaciones Altoandinas; Vol. 19 No. 3 (2017); 264-274 Revista de Investigaciones Altoandinas; Vol. 19 Núm. 3 (2017); 264-274 2313-2957 2306-8582 reponame:Revistas Universidad Nacional del Altiplano instname:Universidad Nacional del Altiplano instacron:UNAP |
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La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).