Forecasting temperate alpine glacier survival from accumulation zone observations
Temperate alpine glacier survival is dependent on the consistent presence of an accumulation zone. Frequent low accumulation area ratio values, below 30%, indicate the lack of a consistent accumulation zone, which leads to substantial thinning of the glacier in the accumulation zone. This thinning i...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00029339 2023-05-15T18:32:32+02:00 Forecasting temperate alpine glacier survival from accumulation zone observations Pelto, M. S. 2010-01 electronic https://doi.org/10.5194/tc-4-67-2010 https://noa.gwlb.de/receive/cop_mods_00029339 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029294/tc-4-67-2010.pdf https://tc.copernicus.org/articles/4/67/2010/tc-4-67-2010.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-4-67-2010 https://noa.gwlb.de/receive/cop_mods_00029339 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029294/tc-4-67-2010.pdf https://tc.copernicus.org/articles/4/67/2010/tc-4-67-2010.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2010 ftnonlinearchiv https://doi.org/10.5194/tc-4-67-2010 2022-02-08T22:47:46Z Temperate alpine glacier survival is dependent on the consistent presence of an accumulation zone. Frequent low accumulation area ratio values, below 30%, indicate the lack of a consistent accumulation zone, which leads to substantial thinning of the glacier in the accumulation zone. This thinning is often evident from substantial marginal recession, emergence of new rock outcrops and surface elevation decline in the accumulation zone. In the North Cascades 9 of the 12 examined glaciers exhibit characteristics of substantial accumulation zone thinning; marginal recession or emergent bedrock areas in the accumulation zone. The longitudinal profile thinning factor, f, which is a measure of the ratio of thinning in the accumulation zone to that at the terminus, is above 0.6 for all glaciers exhibiting accumulation zone thinning characteristics. The ratio of accumulation zone thinning to cumulative mass balance is above 0.5 for glacier experiencing substantial accumulation zone thinning. Without a consistent accumulation zone these glaciers are forecast not to survive the current climate or future additional warming. The results vary considerably with adjacent glaciers having a different survival forecast. This emphasizes the danger of extrapolating survival from one glacier to the next. Article in Journal/Newspaper The Cryosphere New Rock Niedersächsisches Online-Archiv NOA New Rock ENVELOPE(-60.734,-60.734,-63.007,-63.007) The Cryosphere 4 1 67 75 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Pelto, M. S. Forecasting temperate alpine glacier survival from accumulation zone observations |
topic_facet |
article Verlagsveröffentlichung |
description |
Temperate alpine glacier survival is dependent on the consistent presence of an accumulation zone. Frequent low accumulation area ratio values, below 30%, indicate the lack of a consistent accumulation zone, which leads to substantial thinning of the glacier in the accumulation zone. This thinning is often evident from substantial marginal recession, emergence of new rock outcrops and surface elevation decline in the accumulation zone. In the North Cascades 9 of the 12 examined glaciers exhibit characteristics of substantial accumulation zone thinning; marginal recession or emergent bedrock areas in the accumulation zone. The longitudinal profile thinning factor, f, which is a measure of the ratio of thinning in the accumulation zone to that at the terminus, is above 0.6 for all glaciers exhibiting accumulation zone thinning characteristics. The ratio of accumulation zone thinning to cumulative mass balance is above 0.5 for glacier experiencing substantial accumulation zone thinning. Without a consistent accumulation zone these glaciers are forecast not to survive the current climate or future additional warming. The results vary considerably with adjacent glaciers having a different survival forecast. This emphasizes the danger of extrapolating survival from one glacier to the next. |
format |
Article in Journal/Newspaper |
author |
Pelto, M. S. |
author_facet |
Pelto, M. S. |
author_sort |
Pelto, M. S. |
title |
Forecasting temperate alpine glacier survival from accumulation zone observations |
title_short |
Forecasting temperate alpine glacier survival from accumulation zone observations |
title_full |
Forecasting temperate alpine glacier survival from accumulation zone observations |
title_fullStr |
Forecasting temperate alpine glacier survival from accumulation zone observations |
title_full_unstemmed |
Forecasting temperate alpine glacier survival from accumulation zone observations |
title_sort |
forecasting temperate alpine glacier survival from accumulation zone observations |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/tc-4-67-2010 https://noa.gwlb.de/receive/cop_mods_00029339 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029294/tc-4-67-2010.pdf https://tc.copernicus.org/articles/4/67/2010/tc-4-67-2010.pdf |
long_lat |
ENVELOPE(-60.734,-60.734,-63.007,-63.007) |
geographic |
New Rock |
geographic_facet |
New Rock |
genre |
The Cryosphere New Rock |
genre_facet |
The Cryosphere New Rock |
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-4-67-2010 https://noa.gwlb.de/receive/cop_mods_00029339 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029294/tc-4-67-2010.pdf https://tc.copernicus.org/articles/4/67/2010/tc-4-67-2010.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-4-67-2010 |
container_title |
The Cryosphere |
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4 |
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1 |
container_start_page |
67 |
op_container_end_page |
75 |
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