Glacier inventory and recent glacier variations in the Andes of Chile, South America
ABSTRACT The first satellite-derived inventory of glaciers and rock glaciers in Chile, created from Landsat TM/ETM+ images spanning between 2000 and 2003 using a semi-automated procedure, is presented in a single standardized format. Large glacierized areas in the Altiplano, Palena Province and the...
Published in: | Annals of Glaciology |
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Language: | English |
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Cambridge University Press (CUP)
2017
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Online Access: | http://dx.doi.org/10.1017/aog.2017.28 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305517000283 |
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crcambridgeupr:10.1017/aog.2017.28 2024-09-30T14:22:45+00:00 Glacier inventory and recent glacier variations in the Andes of Chile, South America Barcaza, Gonzalo Nussbaumer, Samuel U. Tapia, Guillermo Valdés, Javier García, Juan-Luis Videla, Yohan Albornoz, Amapola Arias, Víctor 2017 http://dx.doi.org/10.1017/aog.2017.28 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305517000283 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by-nc-nd/4.0/ Annals of Glaciology volume 58, issue 75pt2, page 166-180 ISSN 0260-3055 1727-5644 journal-article 2017 crcambridgeupr https://doi.org/10.1017/aog.2017.28 2024-09-18T04:03:42Z ABSTRACT The first satellite-derived inventory of glaciers and rock glaciers in Chile, created from Landsat TM/ETM+ images spanning between 2000 and 2003 using a semi-automated procedure, is presented in a single standardized format. Large glacierized areas in the Altiplano, Palena Province and the periphery of the Patagonian icefields are inventoried. The Chilean glacierized area is 23 708 ± 1185 km 2 , including ~3200 km 2 of both debris-covered glaciers and rock glaciers. Glacier distribution varies as a result of climatic gradients with latitude and elevation, with 0.8% occurring in the Desert Andes (17°30′–32° S); 3.6% in the Central Andes (32–36° S), 6.2% in the Lakes District and Palena Province (36–46° S), and 89.3% in Patagonia and Tierra del Fuego (46–56° S). Glacier outlines, across all glacierized regions and size classes, updated to 2015 using Landsat 8 images for 98 complexes indicate a decline in areal extent affecting mostly clean-ice glaciers (−92.3 ± 4.6 km 2 ), whereas debris-covered glaciers and rock glaciers in the Desert and Central Andes appear nearly unchanged in their extent. Glacier attributes estimated from this new inventory provide valuable insights into spatial patterns of glacier shrinkage for assessing future glacier changes in response to climate change. Article in Journal/Newspaper Annals of Glaciology Tierra del Fuego Cambridge University Press Patagonia The Altiplano ENVELOPE(163.917,163.917,-78.133,-78.133) Annals of Glaciology 58 75pt2 166 180 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
ABSTRACT The first satellite-derived inventory of glaciers and rock glaciers in Chile, created from Landsat TM/ETM+ images spanning between 2000 and 2003 using a semi-automated procedure, is presented in a single standardized format. Large glacierized areas in the Altiplano, Palena Province and the periphery of the Patagonian icefields are inventoried. The Chilean glacierized area is 23 708 ± 1185 km 2 , including ~3200 km 2 of both debris-covered glaciers and rock glaciers. Glacier distribution varies as a result of climatic gradients with latitude and elevation, with 0.8% occurring in the Desert Andes (17°30′–32° S); 3.6% in the Central Andes (32–36° S), 6.2% in the Lakes District and Palena Province (36–46° S), and 89.3% in Patagonia and Tierra del Fuego (46–56° S). Glacier outlines, across all glacierized regions and size classes, updated to 2015 using Landsat 8 images for 98 complexes indicate a decline in areal extent affecting mostly clean-ice glaciers (−92.3 ± 4.6 km 2 ), whereas debris-covered glaciers and rock glaciers in the Desert and Central Andes appear nearly unchanged in their extent. Glacier attributes estimated from this new inventory provide valuable insights into spatial patterns of glacier shrinkage for assessing future glacier changes in response to climate change. |
format |
Article in Journal/Newspaper |
author |
Barcaza, Gonzalo Nussbaumer, Samuel U. Tapia, Guillermo Valdés, Javier García, Juan-Luis Videla, Yohan Albornoz, Amapola Arias, Víctor |
spellingShingle |
Barcaza, Gonzalo Nussbaumer, Samuel U. Tapia, Guillermo Valdés, Javier García, Juan-Luis Videla, Yohan Albornoz, Amapola Arias, Víctor Glacier inventory and recent glacier variations in the Andes of Chile, South America |
author_facet |
Barcaza, Gonzalo Nussbaumer, Samuel U. Tapia, Guillermo Valdés, Javier García, Juan-Luis Videla, Yohan Albornoz, Amapola Arias, Víctor |
author_sort |
Barcaza, Gonzalo |
title |
Glacier inventory and recent glacier variations in the Andes of Chile, South America |
title_short |
Glacier inventory and recent glacier variations in the Andes of Chile, South America |
title_full |
Glacier inventory and recent glacier variations in the Andes of Chile, South America |
title_fullStr |
Glacier inventory and recent glacier variations in the Andes of Chile, South America |
title_full_unstemmed |
Glacier inventory and recent glacier variations in the Andes of Chile, South America |
title_sort |
glacier inventory and recent glacier variations in the andes of chile, south america |
publisher |
Cambridge University Press (CUP) |
publishDate |
2017 |
url |
http://dx.doi.org/10.1017/aog.2017.28 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305517000283 |
long_lat |
ENVELOPE(163.917,163.917,-78.133,-78.133) |
geographic |
Patagonia The Altiplano |
geographic_facet |
Patagonia The Altiplano |
genre |
Annals of Glaciology Tierra del Fuego |
genre_facet |
Annals of Glaciology Tierra del Fuego |
op_source |
Annals of Glaciology volume 58, issue 75pt2, page 166-180 ISSN 0260-3055 1727-5644 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1017/aog.2017.28 |
container_title |
Annals of Glaciology |
container_volume |
58 |
container_issue |
75pt2 |
container_start_page |
166 |
op_container_end_page |
180 |
_version_ |
1811635383387029504 |