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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ftdoajarticles:oai:doaj.org/article:b78df672ae0341c4b9d26197dc044512 2023-05-15T16:22:11+02:00 Topography, ice thickness and ice volume of the glacier Pedersenbreen in Svalbard, using GPR and GPS Songtao Ai Zemin Wang Dongchen E Kim Holmén Zhi Tan Chunxia Zhou Weijun Sun 2014-02-01T00:00:00Z https://doi.org/10.3402/polar.v33.18533 https://doaj.org/article/b78df672ae0341c4b9d26197dc044512 EN eng Norwegian Polar Institute http://www.polarresearch.net/index.php/polar/article/download/18533/pdf_1 https://doaj.org/toc/0800-0395 https://doaj.org/toc/1751-8369 0800-0395 1751-8369 doi:10.3402/polar.v33.18533 https://doaj.org/article/b78df672ae0341c4b9d26197dc044512 Polar Research, Vol 33, Iss 0, Pp 1-8 (2014) GPR GPS glacier topography ice volume ice thickness Pedersenbreen Environmental sciences GE1-350 Oceanography GC1-1581 article 2014 ftdoajarticles https://doi.org/10.3402/polar.v33.18533 2023-01-08T01:30:59Z 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. Article in Journal/Newspaper glacier Polar Research Svalbard Spitsbergen Directory of Open Access Journals: DOAJ Articles Pedersenbreen ENVELOPE(12.316,12.316,78.857,78.857) Svalbard Polar Research 33 1 18533 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
GPR GPS glacier topography ice volume ice thickness Pedersenbreen Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
GPR GPS glacier topography ice volume ice thickness Pedersenbreen Environmental sciences GE1-350 Oceanography GC1-1581 Songtao Ai Zemin Wang Dongchen E Kim Holmén Zhi Tan Chunxia Zhou Weijun Sun 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 Environmental sciences GE1-350 Oceanography GC1-1581 |
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. |
format |
Article in Journal/Newspaper |
author |
Songtao Ai Zemin Wang Dongchen E Kim Holmén Zhi Tan Chunxia Zhou Weijun Sun |
author_facet |
Songtao Ai Zemin Wang Dongchen E Kim Holmén Zhi Tan Chunxia Zhou Weijun Sun |
author_sort |
Songtao Ai |
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://doi.org/10.3402/polar.v33.18533 https://doaj.org/article/b78df672ae0341c4b9d26197dc044512 |
long_lat |
ENVELOPE(12.316,12.316,78.857,78.857) |
geographic |
Pedersenbreen Svalbard |
geographic_facet |
Pedersenbreen Svalbard |
genre |
glacier Polar Research Svalbard Spitsbergen |
genre_facet |
glacier Polar Research Svalbard Spitsbergen |
op_source |
Polar Research, Vol 33, Iss 0, Pp 1-8 (2014) |
op_relation |
http://www.polarresearch.net/index.php/polar/article/download/18533/pdf_1 https://doaj.org/toc/0800-0395 https://doaj.org/toc/1751-8369 0800-0395 1751-8369 doi:10.3402/polar.v33.18533 https://doaj.org/article/b78df672ae0341c4b9d26197dc044512 |
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_ |
1766010163963101184 |