Multi-temporal analysis between 1975 and 2015 on changes in glacier coverage in the snowy Allin Capac and Chichi Capac, Peru

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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...

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Autores: Díaz Aguilar, Renny Daniel, Sanchez Larico, Samantha Vanessa, Lujano Laura, Efrain, Lujano Laura, Apolinario
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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spelling 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
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://huajsapata.unap.edu.pe/index.php/ria/article/view/151
url https://huajsapata.unap.edu.pe/index.php/ria/article/view/151
dc.language.none.fl_str_mv 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
rights_invalid_str_mv Copyright (c) 2020 Revista de Investigaciones Altoandinas
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional del Altiplano de Puno
publisher.none.fl_str_mv Universidad Nacional del Altiplano de Puno
dc.source.none.fl_str_mv 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
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collection Revistas Universidad Nacional del Altiplano
instname_str Universidad Nacional del Altiplano
instacron_str UNAP
institution UNAP
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repository.mail.fl_str_mv mail@mail.com
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