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....
Published in: | The Cryosphere |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2011
|
Subjects: | |
Online Access: | https://doi.org/10.5194/tc-5-977-2011 https://noa.gwlb.de/receive/cop_mods_00026581 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026536/tc-5-977-2011.pdf https://tc.copernicus.org/articles/5/977/2011/tc-5-977-2011.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00026581 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00026581 2023-05-15T16:37:36+02:00 Temperature variability and offset in steep alpine rock and ice faces Hasler, A. Gruber, S. Haeberli, W. 2011-11 electronic https://doi.org/10.5194/tc-5-977-2011 https://noa.gwlb.de/receive/cop_mods_00026581 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026536/tc-5-977-2011.pdf https://tc.copernicus.org/articles/5/977/2011/tc-5-977-2011.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-5-977-2011 https://noa.gwlb.de/receive/cop_mods_00026581 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026536/tc-5-977-2011.pdf https://tc.copernicus.org/articles/5/977/2011/tc-5-977-2011.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2011 ftnonlinearchiv https://doi.org/10.5194/tc-5-977-2011 2022-02-08T22:49:10Z 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 Niedersächsisches Online-Archiv NOA The Cryosphere 5 4 977 988 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Hasler, A. Gruber, S. Haeberli, W. Temperature variability and offset in steep alpine rock and ice faces |
topic_facet |
article Verlagsveröffentlichung |
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://doi.org/10.5194/tc-5-977-2011 https://noa.gwlb.de/receive/cop_mods_00026581 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026536/tc-5-977-2011.pdf https://tc.copernicus.org/articles/5/977/2011/tc-5-977-2011.pdf |
genre |
Ice permafrost The Cryosphere |
genre_facet |
Ice permafrost The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-5-977-2011 https://noa.gwlb.de/receive/cop_mods_00026581 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026536/tc-5-977-2011.pdf https://tc.copernicus.org/articles/5/977/2011/tc-5-977-2011.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-5-977-2011 |
container_title |
The Cryosphere |
container_volume |
5 |
container_issue |
4 |
container_start_page |
977 |
op_container_end_page |
988 |
_version_ |
1766027903952224256 |