Glacier mass balance reconstruction by sublimation induced enrichment of chemical species on Cerro Tapado (Chilean Andes)
International audience A 36 m long ice core down to bedrock from the Cerro Tapado glacier (5536 m a.s.l., 30°08' S, 69°55' W) was analyzed to reconstruct past climatic conditions for Northern Chile. Because of the marked seasonality in the precipitation (short wet winter and extended dry s...
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ftccsdartic:oai:HAL:hal-00298115v1 2024-02-04T10:01:12+01:00 Glacier mass balance reconstruction by sublimation induced enrichment of chemical species on Cerro Tapado (Chilean Andes) Ginot, P. Kull, C. Schotterer, U. Schwikowski, M. Gäggeler, H. W. Department of Chemistry and Biochemistry Universität Bern / University of Bern (UNIBE) Paul Scherrer Institute (PSI) PAGES International Project Office Physikalisches Institut Bern 2005-09-22 https://hal.science/hal-00298115 https://hal.science/hal-00298115/document https://hal.science/hal-00298115/file/cpd-1-169-2005.pdf en eng HAL CCSD European Geosciences Union (EGU) hal-00298115 https://hal.science/hal-00298115 https://hal.science/hal-00298115/document https://hal.science/hal-00298115/file/cpd-1-169-2005.pdf info:eu-repo/semantics/OpenAccess ISSN: 1814-9340 EISSN: 1814-9359 Climate of the Past Discussions https://hal.science/hal-00298115 Climate of the Past Discussions, 2005, 1 (2), pp.169-192 [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2005 ftccsdartic 2024-01-06T23:35:38Z International audience A 36 m long ice core down to bedrock from the Cerro Tapado glacier (5536 m a.s.l., 30°08' S, 69°55' W) was analyzed to reconstruct past climatic conditions for Northern Chile. Because of the marked seasonality in the precipitation (short wet winter and extended dry summer periods) in this region, major snow ablation and related post-depositional processes occur on the glacier surface during summer periods. They include predominantly sublimation and dry deposition. Under certain assumptions the chemical record along the ice core may be applied to reconstruct the history of such secondary processes. For the time period 1962?1999, a mean annual net accumulation of 316 mm water equivalent (weq) and 327 mm weq loss by sublimation was deduced by this method. This corresponds to an initial total annual accumulation of 539 mm weq. The annual variability of the accumulation and sublimation may exhibit a correlation with the Southern Oscillation Index (SOI). The deepest part of the ice record shows a time discontinuity; its age is unknown. Article in Journal/Newspaper ice core Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Soi ENVELOPE(30.704,30.704,66.481,66.481) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Ginot, P. Kull, C. Schotterer, U. Schwikowski, M. Gäggeler, H. W. Glacier mass balance reconstruction by sublimation induced enrichment of chemical species on Cerro Tapado (Chilean Andes) |
topic_facet |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience A 36 m long ice core down to bedrock from the Cerro Tapado glacier (5536 m a.s.l., 30°08' S, 69°55' W) was analyzed to reconstruct past climatic conditions for Northern Chile. Because of the marked seasonality in the precipitation (short wet winter and extended dry summer periods) in this region, major snow ablation and related post-depositional processes occur on the glacier surface during summer periods. They include predominantly sublimation and dry deposition. Under certain assumptions the chemical record along the ice core may be applied to reconstruct the history of such secondary processes. For the time period 1962?1999, a mean annual net accumulation of 316 mm water equivalent (weq) and 327 mm weq loss by sublimation was deduced by this method. This corresponds to an initial total annual accumulation of 539 mm weq. The annual variability of the accumulation and sublimation may exhibit a correlation with the Southern Oscillation Index (SOI). The deepest part of the ice record shows a time discontinuity; its age is unknown. |
author2 |
Department of Chemistry and Biochemistry Universität Bern / University of Bern (UNIBE) Paul Scherrer Institute (PSI) PAGES International Project Office Physikalisches Institut Bern |
format |
Article in Journal/Newspaper |
author |
Ginot, P. Kull, C. Schotterer, U. Schwikowski, M. Gäggeler, H. W. |
author_facet |
Ginot, P. Kull, C. Schotterer, U. Schwikowski, M. Gäggeler, H. W. |
author_sort |
Ginot, P. |
title |
Glacier mass balance reconstruction by sublimation induced enrichment of chemical species on Cerro Tapado (Chilean Andes) |
title_short |
Glacier mass balance reconstruction by sublimation induced enrichment of chemical species on Cerro Tapado (Chilean Andes) |
title_full |
Glacier mass balance reconstruction by sublimation induced enrichment of chemical species on Cerro Tapado (Chilean Andes) |
title_fullStr |
Glacier mass balance reconstruction by sublimation induced enrichment of chemical species on Cerro Tapado (Chilean Andes) |
title_full_unstemmed |
Glacier mass balance reconstruction by sublimation induced enrichment of chemical species on Cerro Tapado (Chilean Andes) |
title_sort |
glacier mass balance reconstruction by sublimation induced enrichment of chemical species on cerro tapado (chilean andes) |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-00298115 https://hal.science/hal-00298115/document https://hal.science/hal-00298115/file/cpd-1-169-2005.pdf |
long_lat |
ENVELOPE(30.704,30.704,66.481,66.481) |
geographic |
Soi |
geographic_facet |
Soi |
genre |
ice core |
genre_facet |
ice core |
op_source |
ISSN: 1814-9340 EISSN: 1814-9359 Climate of the Past Discussions https://hal.science/hal-00298115 Climate of the Past Discussions, 2005, 1 (2), pp.169-192 |
op_relation |
hal-00298115 https://hal.science/hal-00298115 https://hal.science/hal-00298115/document https://hal.science/hal-00298115/file/cpd-1-169-2005.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1789966910070194176 |