The use of GPR to detect active layers in young periglacial terrain of Livingston Island, Maritime Antarctica
ABSTRACT The South Shetland Islands offer ice‐free margins with periglacial surfaces that are only a few decades old after the recent glacier retreat. Ground‐penetrating radar (GPR) profiling was used to acquire information on young permafrost occurrence as deduced from active layer advance. Local G...
Published in: | Near Surface Geophysics |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2008
|
Subjects: | |
Online Access: | http://dx.doi.org/10.3997/1873-0604.2008008 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3997%2F1873-0604.2008008 https://onlinelibrary.wiley.com/doi/pdf/10.3997/1873-0604.2008008 |
id |
crwiley:10.3997/1873-0604.2008008 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.3997/1873-0604.2008008 2024-06-23T07:46:31+00:00 The use of GPR to detect active layers in young periglacial terrain of Livingston Island, Maritime Antarctica Schwamborn, Georg Wagner, Dirk Hubberten, Hans‐W. 2008 http://dx.doi.org/10.3997/1873-0604.2008008 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3997%2F1873-0604.2008008 https://onlinelibrary.wiley.com/doi/pdf/10.3997/1873-0604.2008008 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Near Surface Geophysics volume 6, issue 5, page 331-336 ISSN 1569-4445 1873-0604 journal-article 2008 crwiley https://doi.org/10.3997/1873-0604.2008008 2024-06-06T04:22:19Z ABSTRACT The South Shetland Islands offer ice‐free margins with periglacial surfaces that are only a few decades old after the recent glacier retreat. Ground‐penetrating radar (GPR) profiling was used to acquire information on young permafrost occurrence as deduced from active layer advance. Local GPR measurements included grids of parallel single‐offset 2D reflection profiles and multi‐offset measurements to determine wave velocity in the ground. Excavations served to determine the sedimentary composition and to backup GPR profile interpretation. GPR results show that the active layer could easily be traced at a site 140 m above sea level (asl), which is placed in volcanic soil. In contrast, GPR data were ambiguous at a site low in altitude (35 m asl), where frozen and unfrozen ground was imaged next to each other and GPR interpretation relied on ground verification. Article in Journal/Newspaper Antarc* Antarctica Ice Livingston Island permafrost South Shetland Islands Wiley Online Library Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) South Shetland Islands Near Surface Geophysics 6 5 331 336 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT The South Shetland Islands offer ice‐free margins with periglacial surfaces that are only a few decades old after the recent glacier retreat. Ground‐penetrating radar (GPR) profiling was used to acquire information on young permafrost occurrence as deduced from active layer advance. Local GPR measurements included grids of parallel single‐offset 2D reflection profiles and multi‐offset measurements to determine wave velocity in the ground. Excavations served to determine the sedimentary composition and to backup GPR profile interpretation. GPR results show that the active layer could easily be traced at a site 140 m above sea level (asl), which is placed in volcanic soil. In contrast, GPR data were ambiguous at a site low in altitude (35 m asl), where frozen and unfrozen ground was imaged next to each other and GPR interpretation relied on ground verification. |
format |
Article in Journal/Newspaper |
author |
Schwamborn, Georg Wagner, Dirk Hubberten, Hans‐W. |
spellingShingle |
Schwamborn, Georg Wagner, Dirk Hubberten, Hans‐W. The use of GPR to detect active layers in young periglacial terrain of Livingston Island, Maritime Antarctica |
author_facet |
Schwamborn, Georg Wagner, Dirk Hubberten, Hans‐W. |
author_sort |
Schwamborn, Georg |
title |
The use of GPR to detect active layers in young periglacial terrain of Livingston Island, Maritime Antarctica |
title_short |
The use of GPR to detect active layers in young periglacial terrain of Livingston Island, Maritime Antarctica |
title_full |
The use of GPR to detect active layers in young periglacial terrain of Livingston Island, Maritime Antarctica |
title_fullStr |
The use of GPR to detect active layers in young periglacial terrain of Livingston Island, Maritime Antarctica |
title_full_unstemmed |
The use of GPR to detect active layers in young periglacial terrain of Livingston Island, Maritime Antarctica |
title_sort |
use of gpr to detect active layers in young periglacial terrain of livingston island, maritime antarctica |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.3997/1873-0604.2008008 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3997%2F1873-0604.2008008 https://onlinelibrary.wiley.com/doi/pdf/10.3997/1873-0604.2008008 |
long_lat |
ENVELOPE(-60.500,-60.500,-62.600,-62.600) |
geographic |
Livingston Island South Shetland Islands |
geographic_facet |
Livingston Island South Shetland Islands |
genre |
Antarc* Antarctica Ice Livingston Island permafrost South Shetland Islands |
genre_facet |
Antarc* Antarctica Ice Livingston Island permafrost South Shetland Islands |
op_source |
Near Surface Geophysics volume 6, issue 5, page 331-336 ISSN 1569-4445 1873-0604 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.3997/1873-0604.2008008 |
container_title |
Near Surface Geophysics |
container_volume |
6 |
container_issue |
5 |
container_start_page |
331 |
op_container_end_page |
336 |
_version_ |
1802646493921804288 |