Local topography increasingly influences the mass balance of a retreating cirque glacier
Local topographically driven processes – such as wind drifting, avalanching, and shading – are known to alter the relationship between the mass balance of small cirque glaciers and regional climate. Yet partitioning such local effects from regional climate influence has proven difficult, creating un...
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Language: | English |
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Copernicus Publications
2018
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00005478 2023-05-15T18:32:32+02:00 Local topography increasingly influences the mass balance of a retreating cirque glacier Florentine, Caitlyn Harper, Joel Fagre, Daniel Moore, Johnnie Peitzsch, Erich 2018-06 electronic https://doi.org/10.5194/tc-12-2109-2018 https://noa.gwlb.de/receive/cop_mods_00005478 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005435/tc-12-2109-2018.pdf https://tc.copernicus.org/articles/12/2109/2018/tc-12-2109-2018.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-12-2109-2018 https://noa.gwlb.de/receive/cop_mods_00005478 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005435/tc-12-2109-2018.pdf https://tc.copernicus.org/articles/12/2109/2018/tc-12-2109-2018.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2018 ftnonlinearchiv https://doi.org/10.5194/tc-12-2109-2018 2022-02-08T22:59:33Z Local topographically driven processes – such as wind drifting, avalanching, and shading – are known to alter the relationship between the mass balance of small cirque glaciers and regional climate. Yet partitioning such local effects from regional climate influence has proven difficult, creating uncertainty in the climate representativeness of some glaciers. We address this problem for Sperry Glacier in Glacier National Park, USA, using field-measured surface mass balance, geodetic constraints on mass balance, and regional climate data recorded at a network of meteorological and snow stations. Geodetically derived mass changes during 1950–1960, 1960–2005, and 2005–2014 document average mass change rates during each period at −0.22 ± 0.12, −0.18 ± 0.05, and −0.10 ± 0.03 m w.e. yr−1, respectively. A correlation of field-measured mass balance and regional climate variables closely (i.e., within 0.08 m w.e. yr−1) predicts the geodetically measured mass loss from 2005 to 2014. However, this correlation overestimates glacier mass balance for 1950–1960 by +1.20 ± 0.95 m w.e. yr−1. Our analysis suggests that local effects, not represented in regional climate variables, have become a more dominant driver of the net mass balance as the glacier lost 0.50 km2 and retreated further into its cirque. Article in Journal/Newspaper The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 12 6 2109 2122 |
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English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Florentine, Caitlyn Harper, Joel Fagre, Daniel Moore, Johnnie Peitzsch, Erich Local topography increasingly influences the mass balance of a retreating cirque glacier |
topic_facet |
article Verlagsveröffentlichung |
description |
Local topographically driven processes – such as wind drifting, avalanching, and shading – are known to alter the relationship between the mass balance of small cirque glaciers and regional climate. Yet partitioning such local effects from regional climate influence has proven difficult, creating uncertainty in the climate representativeness of some glaciers. We address this problem for Sperry Glacier in Glacier National Park, USA, using field-measured surface mass balance, geodetic constraints on mass balance, and regional climate data recorded at a network of meteorological and snow stations. Geodetically derived mass changes during 1950–1960, 1960–2005, and 2005–2014 document average mass change rates during each period at −0.22 ± 0.12, −0.18 ± 0.05, and −0.10 ± 0.03 m w.e. yr−1, respectively. A correlation of field-measured mass balance and regional climate variables closely (i.e., within 0.08 m w.e. yr−1) predicts the geodetically measured mass loss from 2005 to 2014. However, this correlation overestimates glacier mass balance for 1950–1960 by +1.20 ± 0.95 m w.e. yr−1. Our analysis suggests that local effects, not represented in regional climate variables, have become a more dominant driver of the net mass balance as the glacier lost 0.50 km2 and retreated further into its cirque. |
format |
Article in Journal/Newspaper |
author |
Florentine, Caitlyn Harper, Joel Fagre, Daniel Moore, Johnnie Peitzsch, Erich |
author_facet |
Florentine, Caitlyn Harper, Joel Fagre, Daniel Moore, Johnnie Peitzsch, Erich |
author_sort |
Florentine, Caitlyn |
title |
Local topography increasingly influences the mass balance of a retreating cirque glacier |
title_short |
Local topography increasingly influences the mass balance of a retreating cirque glacier |
title_full |
Local topography increasingly influences the mass balance of a retreating cirque glacier |
title_fullStr |
Local topography increasingly influences the mass balance of a retreating cirque glacier |
title_full_unstemmed |
Local topography increasingly influences the mass balance of a retreating cirque glacier |
title_sort |
local topography increasingly influences the mass balance of a retreating cirque glacier |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/tc-12-2109-2018 https://noa.gwlb.de/receive/cop_mods_00005478 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005435/tc-12-2109-2018.pdf https://tc.copernicus.org/articles/12/2109/2018/tc-12-2109-2018.pdf |
genre |
The Cryosphere |
genre_facet |
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-12-2109-2018 https://noa.gwlb.de/receive/cop_mods_00005478 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005435/tc-12-2109-2018.pdf https://tc.copernicus.org/articles/12/2109/2018/tc-12-2109-2018.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-12-2109-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
6 |
container_start_page |
2109 |
op_container_end_page |
2122 |
_version_ |
1766216659596476416 |