Geometry change between 1990 and 2003 at Finsterwalderbreen, a Svalbard surge-type glacier, from GPS profiling.
Surface mass-balance and geometry data are key to quantifying the climate response of glaciers, and confidence in data synthesis and model interpretations and forecasts requires data from as wide a range of locations and glacier types as possible. This paper presents measurements of surface elevatio...
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ftloughboroughun:oai:figshare.com:article/9482435 2023-05-15T16:22:07+02:00 Geometry change between 1990 and 2003 at Finsterwalderbreen, a Svalbard surge-type glacier, from GPS profiling. Richard Hodgkins Adrian Fox Anne-Marie Nuttall 2007-01-01T00:00:00Z https://figshare.com/articles/journal_contribution/Geometry_change_between_1990_and_2003_at_Finsterwalderbreen_a_Svalbard_surge-type_glacier_from_GPS_profiling_/9482435 unknown 2134/3570 https://figshare.com/articles/journal_contribution/Geometry_change_between_1990_and_2003_at_Finsterwalderbreen_a_Svalbard_surge-type_glacier_from_GPS_profiling_/9482435 CC BY-NC-ND 4.0 CC-BY-NC-ND Atmospheric Sciences Geophysics Earth Sciences not elsewhere classified untagged Text Journal contribution 2007 ftloughboroughun 2022-01-01T20:49:43Z Surface mass-balance and geometry data are key to quantifying the climate response of glaciers, and confidence in data synthesis and model interpretations and forecasts requires data from as wide a range of locations and glacier types as possible. This paper presents measurements of surface elevation change at the Svalbard surge-type glacier Finsterwalderbreen, by comparing a 1990 digital elevation model (DEM) with a surface GPS profile from 2003. The pattern of elevation change is consistent with that previously noted between 1970 and 1990, and reflects the continued quiescentphase evolution of the glacier, with mass loss in the down-glacier/receiving area of up to –1.25mw.e. a–1, and mass gain in the up-glacier/reservoir area of up to 0.60mw.e. a–1; the area-weighted, mean change for the whole glacier is 0.19mw.e. a–1. The spatial pattern of elevation increase and decrease is complex, and the boundary between thickening and thinning determined by combining GPS and DEM data does not appear to correspond with the equilibrium-line altitude determined from surface mass-balance measurements. There is no evidence yet of a decrease in the rate of reservoir area build-up driven by mass-balance change resulting from the warmer winter air temperatures, and decreased proportion of snowfall in total precipitation, noted at meteorological stations in Svalbard. Other Non-Article Part of Journal/Newspaper glacier Svalbard Loughborough University: Figshare Finsterwalderbreen ENVELOPE(15.273,15.273,77.489,77.489) Svalbard |
institution |
Open Polar |
collection |
Loughborough University: Figshare |
op_collection_id |
ftloughboroughun |
language |
unknown |
topic |
Atmospheric Sciences Geophysics Earth Sciences not elsewhere classified untagged |
spellingShingle |
Atmospheric Sciences Geophysics Earth Sciences not elsewhere classified untagged Richard Hodgkins Adrian Fox Anne-Marie Nuttall Geometry change between 1990 and 2003 at Finsterwalderbreen, a Svalbard surge-type glacier, from GPS profiling. |
topic_facet |
Atmospheric Sciences Geophysics Earth Sciences not elsewhere classified untagged |
description |
Surface mass-balance and geometry data are key to quantifying the climate response of glaciers, and confidence in data synthesis and model interpretations and forecasts requires data from as wide a range of locations and glacier types as possible. This paper presents measurements of surface elevation change at the Svalbard surge-type glacier Finsterwalderbreen, by comparing a 1990 digital elevation model (DEM) with a surface GPS profile from 2003. The pattern of elevation change is consistent with that previously noted between 1970 and 1990, and reflects the continued quiescentphase evolution of the glacier, with mass loss in the down-glacier/receiving area of up to –1.25mw.e. a–1, and mass gain in the up-glacier/reservoir area of up to 0.60mw.e. a–1; the area-weighted, mean change for the whole glacier is 0.19mw.e. a–1. The spatial pattern of elevation increase and decrease is complex, and the boundary between thickening and thinning determined by combining GPS and DEM data does not appear to correspond with the equilibrium-line altitude determined from surface mass-balance measurements. There is no evidence yet of a decrease in the rate of reservoir area build-up driven by mass-balance change resulting from the warmer winter air temperatures, and decreased proportion of snowfall in total precipitation, noted at meteorological stations in Svalbard. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Richard Hodgkins Adrian Fox Anne-Marie Nuttall |
author_facet |
Richard Hodgkins Adrian Fox Anne-Marie Nuttall |
author_sort |
Richard Hodgkins |
title |
Geometry change between 1990 and 2003 at Finsterwalderbreen, a Svalbard surge-type glacier, from GPS profiling. |
title_short |
Geometry change between 1990 and 2003 at Finsterwalderbreen, a Svalbard surge-type glacier, from GPS profiling. |
title_full |
Geometry change between 1990 and 2003 at Finsterwalderbreen, a Svalbard surge-type glacier, from GPS profiling. |
title_fullStr |
Geometry change between 1990 and 2003 at Finsterwalderbreen, a Svalbard surge-type glacier, from GPS profiling. |
title_full_unstemmed |
Geometry change between 1990 and 2003 at Finsterwalderbreen, a Svalbard surge-type glacier, from GPS profiling. |
title_sort |
geometry change between 1990 and 2003 at finsterwalderbreen, a svalbard surge-type glacier, from gps profiling. |
publishDate |
2007 |
url |
https://figshare.com/articles/journal_contribution/Geometry_change_between_1990_and_2003_at_Finsterwalderbreen_a_Svalbard_surge-type_glacier_from_GPS_profiling_/9482435 |
long_lat |
ENVELOPE(15.273,15.273,77.489,77.489) |
geographic |
Finsterwalderbreen Svalbard |
geographic_facet |
Finsterwalderbreen Svalbard |
genre |
glacier Svalbard |
genre_facet |
glacier Svalbard |
op_relation |
2134/3570 https://figshare.com/articles/journal_contribution/Geometry_change_between_1990_and_2003_at_Finsterwalderbreen_a_Svalbard_surge-type_glacier_from_GPS_profiling_/9482435 |
op_rights |
CC BY-NC-ND 4.0 |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766010094751842304 |