Mass changes of alpine glaciers at the eastern margin of the Northern and Southern Patagonian Icefields between 2000 and 2012
Despite renewed efforts to better understand glacier change and recognize glacier change trends in the Andes, relatively large areas in the Andes of Argentina and Chile are still not investigated. In this study, we report on glacier elevation and mass changes in the outer region of the Northern and...
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Cambridge University Press
2017-04-01
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| Series: | Journal of Glaciology |
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| Online Access: | https://www.cambridge.org/core/product/identifier/S0022143016001362/type/journal_article |
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| author | DANIEL FALASCHI TOBIAS BOLCH PHILIPP RASTNER MARÍA GABRIELA LENZANO LUIS LENZANO ANDRÉS LO VECCHIO SILVANA MORAGUES |
| author_facet | DANIEL FALASCHI TOBIAS BOLCH PHILIPP RASTNER MARÍA GABRIELA LENZANO LUIS LENZANO ANDRÉS LO VECCHIO SILVANA MORAGUES |
| author_sort | DANIEL FALASCHI |
| collection | DOAJ |
| description | Despite renewed efforts to better understand glacier change and recognize glacier change trends in the Andes, relatively large areas in the Andes of Argentina and Chile are still not investigated. In this study, we report on glacier elevation and mass changes in the outer region of the Northern and Southern Patagonian Icefields in the Southern Patagonian Andes. A newly-compiled Landsat ETM+ derived glacier inventory (consisting of 2253 glaciers and ~1314 ± 66 km2 of ice area) and differencing of the SRTM and SPOT5 DEMs were used to derive glacier-specific elevation changes over the 2000–12 period. The investigated glaciers showed a volume change of −0.71 ± 0.55 km3 a−1, yielding a surface lowering of 0.52 ± 0.35 m a−1 on average and an overall mass loss of 0.46 ± 0.37 m w.e. a−1. Highly variable individual glacier responses were observed and interestingly, they were less negative than previously reported for the neighboring Patagonian Icefields. |
| first_indexed | 2024-04-10T04:41:43Z |
| format | Article |
| id | doaj.art-570e15ebee1143d0aa1c2944e3843b98 |
| institution | Directory Open Access Journal |
| issn | 0022-1430 1727-5652 |
| language | English |
| last_indexed | 2024-04-10T04:41:43Z |
| publishDate | 2017-04-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Journal of Glaciology |
| spelling | doaj.art-570e15ebee1143d0aa1c2944e3843b982023-03-09T12:40:20ZengCambridge University PressJournal of Glaciology0022-14301727-56522017-04-016325827210.1017/jog.2016.136Mass changes of alpine glaciers at the eastern margin of the Northern and Southern Patagonian Icefields between 2000 and 2012DANIEL FALASCHI0TOBIAS BOLCH1PHILIPP RASTNER2MARÍA GABRIELA LENZANO3LUIS LENZANO4ANDRÉS LO VECCHIO5SILVANA MORAGUES6Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CCT-Mendoza, C. C. 330 Mendoza, ArgentinaDepartment of Geography, University of Zurich, Winterthurerstrasse 190, SwitzerlandDepartment of Geography, University of Zurich, Winterthurerstrasse 190, SwitzerlandInstituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CCT-Mendoza, C. C. 330 Mendoza, ArgentinaInstituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CCT-Mendoza, C. C. 330 Mendoza, ArgentinaInstituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CCT-Mendoza, C. C. 330 Mendoza, ArgentinaInstituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CCT-Mendoza, C. C. 330 Mendoza, ArgentinaDespite renewed efforts to better understand glacier change and recognize glacier change trends in the Andes, relatively large areas in the Andes of Argentina and Chile are still not investigated. In this study, we report on glacier elevation and mass changes in the outer region of the Northern and Southern Patagonian Icefields in the Southern Patagonian Andes. A newly-compiled Landsat ETM+ derived glacier inventory (consisting of 2253 glaciers and ~1314 ± 66 km2 of ice area) and differencing of the SRTM and SPOT5 DEMs were used to derive glacier-specific elevation changes over the 2000–12 period. The investigated glaciers showed a volume change of −0.71 ± 0.55 km3 a−1, yielding a surface lowering of 0.52 ± 0.35 m a−1 on average and an overall mass loss of 0.46 ± 0.37 m w.e. a−1. Highly variable individual glacier responses were observed and interestingly, they were less negative than previously reported for the neighboring Patagonian Icefields.https://www.cambridge.org/core/product/identifier/S0022143016001362/type/journal_articleglacier mass balanceglacier volumemountain glaciers |
| spellingShingle | DANIEL FALASCHI TOBIAS BOLCH PHILIPP RASTNER MARÍA GABRIELA LENZANO LUIS LENZANO ANDRÉS LO VECCHIO SILVANA MORAGUES Mass changes of alpine glaciers at the eastern margin of the Northern and Southern Patagonian Icefields between 2000 and 2012 Journal of Glaciology glacier mass balance glacier volume mountain glaciers |
| title | Mass changes of alpine glaciers at the eastern margin of the Northern and Southern Patagonian Icefields between 2000 and 2012 |
| title_full | Mass changes of alpine glaciers at the eastern margin of the Northern and Southern Patagonian Icefields between 2000 and 2012 |
| title_fullStr | Mass changes of alpine glaciers at the eastern margin of the Northern and Southern Patagonian Icefields between 2000 and 2012 |
| title_full_unstemmed | Mass changes of alpine glaciers at the eastern margin of the Northern and Southern Patagonian Icefields between 2000 and 2012 |
| title_short | Mass changes of alpine glaciers at the eastern margin of the Northern and Southern Patagonian Icefields between 2000 and 2012 |
| title_sort | mass changes of alpine glaciers at the eastern margin of the northern and southern patagonian icefields between 2000 and 2012 |
| topic | glacier mass balance glacier volume mountain glaciers |
| url | https://www.cambridge.org/core/product/identifier/S0022143016001362/type/journal_article |
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