Topography, ice thickness and ice volume of the glacier Pedersenbreen in Svalbard, using GPR and GPS
Pedersenbreen is a small valley glacier (ca. 6 km2 in 2009), ending on land, located in north-western Spitsbergen, Svalbard. Ground-based radio-echo sounding in April 2009, using a 100-MHz commercial radar and a self-made low-frequency radar, revealed a polythermal structure. The radar was coupled w...
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ftjpolarres:oai:journals.openacademia.net:article/3197 2024-09-09T19:41:37+00:00 Topography, ice thickness and ice volume of the glacier Pedersenbreen in Svalbard, using GPR and GPS Ai, Songtao Wang, Zemin E, Dongchen Holmén, Kim Tan, Zhi Zhou, Chunxia Sun, Weijun 2014-02-20 application/pdf text/html application/epub+zip text/plain https://polarresearch.net/index.php/polar/article/view/3197 https://doi.org/10.3402/polar.v33.18533 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/3197/pdf_1 https://polarresearch.net/index.php/polar/article/view/3197/html https://polarresearch.net/index.php/polar/article/view/3197/8023 https://polarresearch.net/index.php/polar/article/view/3197/8024 https://polarresearch.net/index.php/polar/article/view/3197 doi:10.3402/polar.v33.18533 Polar Research; Vol 33 (2014) 1751-8369 GPR GPS glacier topography ice volume ice thickness Pedersenbreen info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2014 ftjpolarres https://doi.org/10.3402/polar.v33.18533 2024-06-20T23:33:17Z Pedersenbreen is a small valley glacier (ca. 6 km2 in 2009), ending on land, located in north-western Spitsbergen, Svalbard. Ground-based radio-echo sounding in April 2009, using a 100-MHz commercial radar and a self-made low-frequency radar, revealed a polythermal structure. The radar was coupled with a global positioning system device to geo-reference the traces. Each radar profile was manually edited to pick the reflection arrival time from the interface between ice and bedrock. Travel times were converted to ice thickness using a velocity of 0.165 m/ns, which was estimated from common mid-point measurement. Then the surface topography, bedrock topography, ice thickness contours and ice volume were derived using interpolation methods. Because it was difficult to distinguish the reflection wave from the background with the 100-MHz radar in some of the thickest areas of Pedersenbreen, we used a 5-MHz radar of our own design to fill in this gap. The maximum thickness of Pedersenbreen reaches 183±9 m, and the ice volume is 0.393±0.047 km3 in 2009. Comparing these data with the surface topographical data available for 1936 indicates a mass loss of nearly 12% during the past 73 years.Keywords: GPR; GPS; glacier topography; ice volume; ice thickness; Pedersenbreen(Published: 20 February 2014)Citation: Polar Research 2014, 33, 18533, http://dx.doi.org/10.3402/polar.v33.18533 Article in Journal/Newspaper glacier Polar Research Svalbard Spitsbergen Polar Research Svalbard Pedersenbreen ENVELOPE(12.316,12.316,78.857,78.857) Polar Research 33 1 18533 |
institution |
Open Polar |
collection |
Polar Research |
op_collection_id |
ftjpolarres |
language |
English |
topic |
GPR GPS glacier topography ice volume ice thickness Pedersenbreen |
spellingShingle |
GPR GPS glacier topography ice volume ice thickness Pedersenbreen Ai, Songtao Wang, Zemin E, Dongchen Holmén, Kim Tan, Zhi Zhou, Chunxia Sun, Weijun Topography, ice thickness and ice volume of the glacier Pedersenbreen in Svalbard, using GPR and GPS |
topic_facet |
GPR GPS glacier topography ice volume ice thickness Pedersenbreen |
description |
Pedersenbreen is a small valley glacier (ca. 6 km2 in 2009), ending on land, located in north-western Spitsbergen, Svalbard. Ground-based radio-echo sounding in April 2009, using a 100-MHz commercial radar and a self-made low-frequency radar, revealed a polythermal structure. The radar was coupled with a global positioning system device to geo-reference the traces. Each radar profile was manually edited to pick the reflection arrival time from the interface between ice and bedrock. Travel times were converted to ice thickness using a velocity of 0.165 m/ns, which was estimated from common mid-point measurement. Then the surface topography, bedrock topography, ice thickness contours and ice volume were derived using interpolation methods. Because it was difficult to distinguish the reflection wave from the background with the 100-MHz radar in some of the thickest areas of Pedersenbreen, we used a 5-MHz radar of our own design to fill in this gap. The maximum thickness of Pedersenbreen reaches 183±9 m, and the ice volume is 0.393±0.047 km3 in 2009. Comparing these data with the surface topographical data available for 1936 indicates a mass loss of nearly 12% during the past 73 years.Keywords: GPR; GPS; glacier topography; ice volume; ice thickness; Pedersenbreen(Published: 20 February 2014)Citation: Polar Research 2014, 33, 18533, http://dx.doi.org/10.3402/polar.v33.18533 |
format |
Article in Journal/Newspaper |
author |
Ai, Songtao Wang, Zemin E, Dongchen Holmén, Kim Tan, Zhi Zhou, Chunxia Sun, Weijun |
author_facet |
Ai, Songtao Wang, Zemin E, Dongchen Holmén, Kim Tan, Zhi Zhou, Chunxia Sun, Weijun |
author_sort |
Ai, Songtao |
title |
Topography, ice thickness and ice volume of the glacier Pedersenbreen in Svalbard, using GPR and GPS |
title_short |
Topography, ice thickness and ice volume of the glacier Pedersenbreen in Svalbard, using GPR and GPS |
title_full |
Topography, ice thickness and ice volume of the glacier Pedersenbreen in Svalbard, using GPR and GPS |
title_fullStr |
Topography, ice thickness and ice volume of the glacier Pedersenbreen in Svalbard, using GPR and GPS |
title_full_unstemmed |
Topography, ice thickness and ice volume of the glacier Pedersenbreen in Svalbard, using GPR and GPS |
title_sort |
topography, ice thickness and ice volume of the glacier pedersenbreen in svalbard, using gpr and gps |
publisher |
Norwegian Polar Institute |
publishDate |
2014 |
url |
https://polarresearch.net/index.php/polar/article/view/3197 https://doi.org/10.3402/polar.v33.18533 |
long_lat |
ENVELOPE(12.316,12.316,78.857,78.857) |
geographic |
Svalbard Pedersenbreen |
geographic_facet |
Svalbard Pedersenbreen |
genre |
glacier Polar Research Svalbard Spitsbergen |
genre_facet |
glacier Polar Research Svalbard Spitsbergen |
op_source |
Polar Research; Vol 33 (2014) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/3197/pdf_1 https://polarresearch.net/index.php/polar/article/view/3197/html https://polarresearch.net/index.php/polar/article/view/3197/8023 https://polarresearch.net/index.php/polar/article/view/3197/8024 https://polarresearch.net/index.php/polar/article/view/3197 doi:10.3402/polar.v33.18533 |
op_doi |
https://doi.org/10.3402/polar.v33.18533 |
container_title |
Polar Research |
container_volume |
33 |
container_issue |
1 |
container_start_page |
18533 |
_version_ |
1809910962800558080 |