First glacier inventory and recent changes in Glacier area in the Monte San Lorenzo Region (47 S), Southern Patagonian Andes, South America
We present the first glacier inventory of the Monte San Lorenzo region (47 35'S, 72 18'W) in the southern Patagonian Andes of Chile and Argentina. This region contains the largest and easternmost glaciers at these latitudes in South America. The inventory was developed using a combination...
Published in: | Arctic, Antarctic, and Alpine Research |
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Language: | English |
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Online Access: | https://doi.org/10.1657/1938-4246-45.1.19 https://repositorio.uchile.cl/handle/2250/155027 |
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ftunivchile:oai:repositorio.uchile.cl:2250/155027 2023-05-15T14:14:00+02:00 First glacier inventory and recent changes in Glacier area in the Monte San Lorenzo Region (47 S), Southern Patagonian Andes, South America Falaschi, Daniel Bravo, Claudio Masiokas, Mariano Villalba, Ricardo Rivera, Andrés 2013 application/pdf https://doi.org/10.1657/1938-4246-45.1.19 https://repositorio.uchile.cl/handle/2250/155027 en eng Arctic, Antarctic, and Alpine Research, Volumen 45, Issue 1, 2018, Pages 19-28 15230430 doi:10.1657/1938-4246-45.1.19 https://repositorio.uchile.cl/handle/2250/155027 Attribution-NonCommercial-NoDerivs 3.0 Chile http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ CC-BY-NC-ND Arctic, Antarctic, and Alpine Research Global and Planetary Change Ecology Evolution Behavior and Systematics Earth-Surface Processes Artículo de revista 2013 ftunivchile https://doi.org/10.1657/1938-4246-45.1.19 2023-01-29T00:54:36Z We present the first glacier inventory of the Monte San Lorenzo region (47 35'S, 72 18'W) in the southern Patagonian Andes of Chile and Argentina. This region contains the largest and easternmost glaciers at these latitudes in South America. The inventory was developed using a combination of ASTER and Landsat ETM+ scenes from 2005 and 2008, respectively, and a semi-automatic band ratio approach to map glacier ice. Manual corrections were applied to include debris-covered ice and ice in cast shadows. We inventoried 213 glaciers that cover a 2005/2008 total area of ca. 207 km2 and lie between 520 m and 3700 m in elevation. Landsat TM images acquired in 1985 and 2000 were subsequently used to assess changes in glacierized area over the 1985-2008 interval. Based on all available information, we determined an 18.6% reduction in the total glacier area since 1985. Glaciers smaller than 1 km2 have shown highly variable (0-100%) relative areal reduction, whereas the formation and growth of prog Article in Journal/Newspaper Antarctic and Alpine Research Arctic Universidad de Chile: Repositorio académico Argentina Arctic, Antarctic, and Alpine Research 45 1 19 28 |
institution |
Open Polar |
collection |
Universidad de Chile: Repositorio académico |
op_collection_id |
ftunivchile |
language |
English |
topic |
Global and Planetary Change Ecology Evolution Behavior and Systematics Earth-Surface Processes |
spellingShingle |
Global and Planetary Change Ecology Evolution Behavior and Systematics Earth-Surface Processes Falaschi, Daniel Bravo, Claudio Masiokas, Mariano Villalba, Ricardo Rivera, Andrés First glacier inventory and recent changes in Glacier area in the Monte San Lorenzo Region (47 S), Southern Patagonian Andes, South America |
topic_facet |
Global and Planetary Change Ecology Evolution Behavior and Systematics Earth-Surface Processes |
description |
We present the first glacier inventory of the Monte San Lorenzo region (47 35'S, 72 18'W) in the southern Patagonian Andes of Chile and Argentina. This region contains the largest and easternmost glaciers at these latitudes in South America. The inventory was developed using a combination of ASTER and Landsat ETM+ scenes from 2005 and 2008, respectively, and a semi-automatic band ratio approach to map glacier ice. Manual corrections were applied to include debris-covered ice and ice in cast shadows. We inventoried 213 glaciers that cover a 2005/2008 total area of ca. 207 km2 and lie between 520 m and 3700 m in elevation. Landsat TM images acquired in 1985 and 2000 were subsequently used to assess changes in glacierized area over the 1985-2008 interval. Based on all available information, we determined an 18.6% reduction in the total glacier area since 1985. Glaciers smaller than 1 km2 have shown highly variable (0-100%) relative areal reduction, whereas the formation and growth of prog |
format |
Article in Journal/Newspaper |
author |
Falaschi, Daniel Bravo, Claudio Masiokas, Mariano Villalba, Ricardo Rivera, Andrés |
author_facet |
Falaschi, Daniel Bravo, Claudio Masiokas, Mariano Villalba, Ricardo Rivera, Andrés |
author_sort |
Falaschi, Daniel |
title |
First glacier inventory and recent changes in Glacier area in the Monte San Lorenzo Region (47 S), Southern Patagonian Andes, South America |
title_short |
First glacier inventory and recent changes in Glacier area in the Monte San Lorenzo Region (47 S), Southern Patagonian Andes, South America |
title_full |
First glacier inventory and recent changes in Glacier area in the Monte San Lorenzo Region (47 S), Southern Patagonian Andes, South America |
title_fullStr |
First glacier inventory and recent changes in Glacier area in the Monte San Lorenzo Region (47 S), Southern Patagonian Andes, South America |
title_full_unstemmed |
First glacier inventory and recent changes in Glacier area in the Monte San Lorenzo Region (47 S), Southern Patagonian Andes, South America |
title_sort |
first glacier inventory and recent changes in glacier area in the monte san lorenzo region (47 s), southern patagonian andes, south america |
publishDate |
2013 |
url |
https://doi.org/10.1657/1938-4246-45.1.19 https://repositorio.uchile.cl/handle/2250/155027 |
geographic |
Argentina |
geographic_facet |
Argentina |
genre |
Antarctic and Alpine Research Arctic |
genre_facet |
Antarctic and Alpine Research Arctic |
op_source |
Arctic, Antarctic, and Alpine Research |
op_relation |
Arctic, Antarctic, and Alpine Research, Volumen 45, Issue 1, 2018, Pages 19-28 15230430 doi:10.1657/1938-4246-45.1.19 https://repositorio.uchile.cl/handle/2250/155027 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Chile http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1657/1938-4246-45.1.19 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
45 |
container_issue |
1 |
container_start_page |
19 |
op_container_end_page |
28 |
_version_ |
1766286520721866752 |