Decadal changes in glacier parameters in the Cordillera Blanca, Peru, derived from remote sensing
International audience We present spatial patterns of glacier fluctuations from the Cordillera Blanca, Peru, (glacier area, terminus elevations, median elevations and hypsography) at decadal timescales derived from 1970 aerial photography, 2003 SPOT5 satellite data, Geographic Information Systems (G...
Published in: | Journal of Glaciology |
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Main Authors: | , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2008
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Online Access: | https://insu.hal.science/insu-00381050 https://insu.hal.science/insu-00381050/document https://insu.hal.science/insu-00381050/file/decadal-changes-in-glacier-parameters-in-the-cordillera-blanca-peru-derived-from-remote-sensing.pdf https://doi.org/10.3189/002214308785836922 |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
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ftinsu |
language |
English |
topic |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
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[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Racoviteanu, Adina Arnaud, Yves Williams, Mark W. Ordonez, Julio Decadal changes in glacier parameters in the Cordillera Blanca, Peru, derived from remote sensing |
topic_facet |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience We present spatial patterns of glacier fluctuations from the Cordillera Blanca, Peru, (glacier area, terminus elevations, median elevations and hypsography) at decadal timescales derived from 1970 aerial photography, 2003 SPOT5 satellite data, Geographic Information Systems (GIS) and statistical analyses. We derived new glacier outlines from the 2003 SPOT images, and ingested them in the Global Land and Ice Measurements from Space (GLIMS) glacier database. We examined changes in glacier area on the eastern and western side of the Cordillera in relation to topographic and climate variables (temperature and precipitation). Results include (1) an estimated glacierized area of 569.6±21 km2 in 2003, (2) an overall loss in glacierized area of 22.4% from 1970 to 2003, (3) an average rise in glacier terminus elevations by 113 m and an average rise in the median elevation of glaciers by 66 m, showing a shift of ice to higher elevations, especially on the eastern side of the Cordillera, and (4) an increase in the number of glaciers, which indicates disintegration of ice bodies. Annual air temperature showed a significant upward trend in the last 30 years, with larger temperature increases at lower elevations. There was a slight but not significant decrease in precipitation. Our results are consistent with glacier retreat and warming trends noted in the last three decades in the tropics. |
author2 |
Institute of Arctic Alpine Research University of Colorado Boulder (INSTAAR) University of Colorado Boulder Department of Geography National Snow and Ice Data Center (NSIDC) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Direcion de Hidrologia y Recursos Hidricos Servicio Nacional de Meteorologia e Hidrologia Jiron Cahuide |
format |
Article in Journal/Newspaper |
author |
Racoviteanu, Adina Arnaud, Yves Williams, Mark W. Ordonez, Julio |
author_facet |
Racoviteanu, Adina Arnaud, Yves Williams, Mark W. Ordonez, Julio |
author_sort |
Racoviteanu, Adina |
title |
Decadal changes in glacier parameters in the Cordillera Blanca, Peru, derived from remote sensing |
title_short |
Decadal changes in glacier parameters in the Cordillera Blanca, Peru, derived from remote sensing |
title_full |
Decadal changes in glacier parameters in the Cordillera Blanca, Peru, derived from remote sensing |
title_fullStr |
Decadal changes in glacier parameters in the Cordillera Blanca, Peru, derived from remote sensing |
title_full_unstemmed |
Decadal changes in glacier parameters in the Cordillera Blanca, Peru, derived from remote sensing |
title_sort |
decadal changes in glacier parameters in the cordillera blanca, peru, derived from remote sensing |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://insu.hal.science/insu-00381050 https://insu.hal.science/insu-00381050/document https://insu.hal.science/insu-00381050/file/decadal-changes-in-glacier-parameters-in-the-cordillera-blanca-peru-derived-from-remote-sensing.pdf https://doi.org/10.3189/002214308785836922 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
ISSN: 0022-1430 EISSN: 1727-5652 Journal of Glaciology https://insu.hal.science/insu-00381050 Journal of Glaciology, 2008, 54 (186), pp.499 à 510. ⟨10.3189/002214308785836922⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3189/002214308785836922 insu-00381050 https://insu.hal.science/insu-00381050 https://insu.hal.science/insu-00381050/document https://insu.hal.science/insu-00381050/file/decadal-changes-in-glacier-parameters-in-the-cordillera-blanca-peru-derived-from-remote-sensing.pdf doi:10.3189/002214308785836922 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3189/002214308785836922 |
container_title |
Journal of Glaciology |
container_volume |
54 |
container_issue |
186 |
container_start_page |
499 |
op_container_end_page |
510 |
_version_ |
1797586054933381120 |
spelling |
ftinsu:oai:HAL:insu-00381050v1 2024-04-28T08:26:50+00:00 Decadal changes in glacier parameters in the Cordillera Blanca, Peru, derived from remote sensing Racoviteanu, Adina Arnaud, Yves Williams, Mark W. Ordonez, Julio Institute of Arctic Alpine Research University of Colorado Boulder (INSTAAR) University of Colorado Boulder Department of Geography National Snow and Ice Data Center (NSIDC) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Direcion de Hidrologia y Recursos Hidricos Servicio Nacional de Meteorologia e Hidrologia Jiron Cahuide 2008 https://insu.hal.science/insu-00381050 https://insu.hal.science/insu-00381050/document https://insu.hal.science/insu-00381050/file/decadal-changes-in-glacier-parameters-in-the-cordillera-blanca-peru-derived-from-remote-sensing.pdf https://doi.org/10.3189/002214308785836922 en eng HAL CCSD International Glaciological Society info:eu-repo/semantics/altIdentifier/doi/10.3189/002214308785836922 insu-00381050 https://insu.hal.science/insu-00381050 https://insu.hal.science/insu-00381050/document https://insu.hal.science/insu-00381050/file/decadal-changes-in-glacier-parameters-in-the-cordillera-blanca-peru-derived-from-remote-sensing.pdf doi:10.3189/002214308785836922 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0022-1430 EISSN: 1727-5652 Journal of Glaciology https://insu.hal.science/insu-00381050 Journal of Glaciology, 2008, 54 (186), pp.499 à 510. ⟨10.3189/002214308785836922⟩ [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2008 ftinsu https://doi.org/10.3189/002214308785836922 2024-04-05T00:35:45Z International audience We present spatial patterns of glacier fluctuations from the Cordillera Blanca, Peru, (glacier area, terminus elevations, median elevations and hypsography) at decadal timescales derived from 1970 aerial photography, 2003 SPOT5 satellite data, Geographic Information Systems (GIS) and statistical analyses. We derived new glacier outlines from the 2003 SPOT images, and ingested them in the Global Land and Ice Measurements from Space (GLIMS) glacier database. We examined changes in glacier area on the eastern and western side of the Cordillera in relation to topographic and climate variables (temperature and precipitation). Results include (1) an estimated glacierized area of 569.6±21 km2 in 2003, (2) an overall loss in glacierized area of 22.4% from 1970 to 2003, (3) an average rise in glacier terminus elevations by 113 m and an average rise in the median elevation of glaciers by 66 m, showing a shift of ice to higher elevations, especially on the eastern side of the Cordillera, and (4) an increase in the number of glaciers, which indicates disintegration of ice bodies. Annual air temperature showed a significant upward trend in the last 30 years, with larger temperature increases at lower elevations. There was a slight but not significant decrease in precipitation. Our results are consistent with glacier retreat and warming trends noted in the last three decades in the tropics. Article in Journal/Newspaper Journal of Glaciology Institut national des sciences de l'Univers: HAL-INSU Journal of Glaciology 54 186 499 510 |