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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Copernicus Publications
2018
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Online Access: | https://doi.org/10.5194/tc-12-2109-2018 https://www.the-cryosphere.net/12/2109/2018/tc-12-2109-2018.pdf https://doaj.org/article/236d64c6785940d7a47db7e7e00bbd6f |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:236d64c6785940d7a47db7e7e00bbd6f 2023-05-15T18:32:17+02:00 Local topography increasingly influences the mass balance of a retreating cirque glacier C. Florentine J. Harper D. Fagre J. Moore E. Peitzsch 2018-06-01 https://doi.org/10.5194/tc-12-2109-2018 https://www.the-cryosphere.net/12/2109/2018/tc-12-2109-2018.pdf https://doaj.org/article/236d64c6785940d7a47db7e7e00bbd6f en eng Copernicus Publications doi:10.5194/tc-12-2109-2018 1994-0416 1994-0424 https://www.the-cryosphere.net/12/2109/2018/tc-12-2109-2018.pdf https://doaj.org/article/236d64c6785940d7a47db7e7e00bbd6f undefined The Cryosphere, Vol 12, Pp 2109-2122 (2018) envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.5194/tc-12-2109-2018 2023-01-22T17:20:58Z 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 Unknown The Cryosphere 12 6 2109 2122 |
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English |
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envir geo |
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envir geo C. Florentine J. Harper D. Fagre J. Moore E. Peitzsch Local topography increasingly influences the mass balance of a retreating cirque glacier |
topic_facet |
envir geo |
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 |
C. Florentine J. Harper D. Fagre J. Moore E. Peitzsch |
author_facet |
C. Florentine J. Harper D. Fagre J. Moore E. Peitzsch |
author_sort |
C. Florentine |
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://www.the-cryosphere.net/12/2109/2018/tc-12-2109-2018.pdf https://doaj.org/article/236d64c6785940d7a47db7e7e00bbd6f |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
The Cryosphere, Vol 12, Pp 2109-2122 (2018) |
op_relation |
doi:10.5194/tc-12-2109-2018 1994-0416 1994-0424 https://www.the-cryosphere.net/12/2109/2018/tc-12-2109-2018.pdf https://doaj.org/article/236d64c6785940d7a47db7e7e00bbd6f |
op_rights |
undefined |
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 |
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1766216392081670144 |