Temperature variability and offset in steep alpine rock and ice faces
The thermal condition of high-alpine mountain flanks can be an important determinant of climate change impact on slope stability and correspondingly down-slope hazard regimes. In this study we analyze time-series from 17 shallow temperature-depth profiles at two field sites in steep bedrock and ice....
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2011
|
Subjects: | |
Online Access: | https://www.zora.uzh.ch/id/eprint/58030/ https://www.zora.uzh.ch/id/eprint/58030/1/2011_Hasler_Gruber_Haeberli.pdf https://doi.org/10.5167/uzh-58030 https://doi.org/10.5194/tc-5-977-2011 |
id |
ftunivzuerich:oai:www.zora.uzh.ch:58030 |
---|---|
record_format |
openpolar |
spelling |
ftunivzuerich:oai:www.zora.uzh.ch:58030 2024-09-15T18:11:38+00:00 Temperature variability and offset in steep alpine rock and ice faces Hasler, A Gruber, S Haeberli, W 2011-11-10 application/pdf https://www.zora.uzh.ch/id/eprint/58030/ https://www.zora.uzh.ch/id/eprint/58030/1/2011_Hasler_Gruber_Haeberli.pdf https://doi.org/10.5167/uzh-58030 https://doi.org/10.5194/tc-5-977-2011 eng eng Copernicus Publications https://www.zora.uzh.ch/id/eprint/58030/1/2011_Hasler_Gruber_Haeberli.pdf doi:10.5167/uzh-58030 doi:10.5194/tc-5-977-2011 urn:issn:1994-0424 info:eu-repo/semantics/openAccess Creative Commons: Attribution 3.0 Unported (CC BY 3.0) http://creativecommons.org/licenses/by/3.0/ Hasler, A; Gruber, S; Haeberli, W (2011). Temperature variability and offset in steep alpine rock and ice faces. The Cryosphere, 5(4):977-988. Institute of Geography 910 Geography & travel Earth-Surface Processes Water Science and Technology Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2011 ftunivzuerich https://doi.org/10.5167/uzh-5803010.5194/tc-5-977-2011 2024-08-14T00:23:55Z The thermal condition of high-alpine mountain flanks can be an important determinant of climate change impact on slope stability and correspondingly down-slope hazard regimes. In this study we analyze time-series from 17 shallow temperature-depth profiles at two field sites in steep bedrock and ice. Extending earlier studies that revealed the topographic variations in temperatures, we demonstrate considerable differences of annual mean temperatures for variable surface characteristics and depths within the measured profiles. This implies that measurements and model related to compact and near-vertical bedrock temperatures may deviate considerably from conditions in the majority of bedrock slopes in mountain ranges that are usually non-vertical and fractured. For radiation-exposed faces mean annual temperatures at depth are up to 3 °C lower and permafrost is likely to exist at lower elevations than reflected by estimates based on near-vertical homogeneous cases. Retention of a thin snow cover and ventilation effects in open clefts are most likely responsible for this cooling. The measurements presented or similar data could be used in the future to support the development and testing of models related to the thermal effect of snow-cover and fractures in steep bedrock. Article in Journal/Newspaper Ice permafrost The Cryosphere University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
institution |
Open Polar |
collection |
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
Institute of Geography 910 Geography & travel Earth-Surface Processes Water Science and Technology |
spellingShingle |
Institute of Geography 910 Geography & travel Earth-Surface Processes Water Science and Technology Hasler, A Gruber, S Haeberli, W Temperature variability and offset in steep alpine rock and ice faces |
topic_facet |
Institute of Geography 910 Geography & travel Earth-Surface Processes Water Science and Technology |
description |
The thermal condition of high-alpine mountain flanks can be an important determinant of climate change impact on slope stability and correspondingly down-slope hazard regimes. In this study we analyze time-series from 17 shallow temperature-depth profiles at two field sites in steep bedrock and ice. Extending earlier studies that revealed the topographic variations in temperatures, we demonstrate considerable differences of annual mean temperatures for variable surface characteristics and depths within the measured profiles. This implies that measurements and model related to compact and near-vertical bedrock temperatures may deviate considerably from conditions in the majority of bedrock slopes in mountain ranges that are usually non-vertical and fractured. For radiation-exposed faces mean annual temperatures at depth are up to 3 °C lower and permafrost is likely to exist at lower elevations than reflected by estimates based on near-vertical homogeneous cases. Retention of a thin snow cover and ventilation effects in open clefts are most likely responsible for this cooling. The measurements presented or similar data could be used in the future to support the development and testing of models related to the thermal effect of snow-cover and fractures in steep bedrock. |
format |
Article in Journal/Newspaper |
author |
Hasler, A Gruber, S Haeberli, W |
author_facet |
Hasler, A Gruber, S Haeberli, W |
author_sort |
Hasler, A |
title |
Temperature variability and offset in steep alpine rock and ice faces |
title_short |
Temperature variability and offset in steep alpine rock and ice faces |
title_full |
Temperature variability and offset in steep alpine rock and ice faces |
title_fullStr |
Temperature variability and offset in steep alpine rock and ice faces |
title_full_unstemmed |
Temperature variability and offset in steep alpine rock and ice faces |
title_sort |
temperature variability and offset in steep alpine rock and ice faces |
publisher |
Copernicus Publications |
publishDate |
2011 |
url |
https://www.zora.uzh.ch/id/eprint/58030/ https://www.zora.uzh.ch/id/eprint/58030/1/2011_Hasler_Gruber_Haeberli.pdf https://doi.org/10.5167/uzh-58030 https://doi.org/10.5194/tc-5-977-2011 |
genre |
Ice permafrost The Cryosphere |
genre_facet |
Ice permafrost The Cryosphere |
op_source |
Hasler, A; Gruber, S; Haeberli, W (2011). Temperature variability and offset in steep alpine rock and ice faces. The Cryosphere, 5(4):977-988. |
op_relation |
https://www.zora.uzh.ch/id/eprint/58030/1/2011_Hasler_Gruber_Haeberli.pdf doi:10.5167/uzh-58030 doi:10.5194/tc-5-977-2011 urn:issn:1994-0424 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons: Attribution 3.0 Unported (CC BY 3.0) http://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.5167/uzh-5803010.5194/tc-5-977-2011 |
_version_ |
1810449225559834624 |