High-resolution seismic and ground penetrating radar – geophysical profiling of a thermokarst lake
High-resolution seismic and ground-penetrating-radar (GPR) data have been acquired over Lake Nikolay in the western Lena Delta in order to study the uppermost basin fill and the bordering frozen margins. GPR (100 MHz antenna pair) measurements were completed on the frozen lake and its permafrost mar...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.558.7321 2023-05-15T17:07:31+02:00 High-resolution seismic and ground penetrating radar – geophysical profiling of a thermokarst lake G. J. Schwamborn J. K. Dix J. M. Bull V. Rachold The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.7321 http://eprints.soton.ac.uk/40817/1/permafrost_and_periglacial_processes.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.7321 http://eprints.soton.ac.uk/40817/1/permafrost_and_periglacial_processes.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://eprints.soton.ac.uk/40817/1/permafrost_and_periglacial_processes.pdf text ftciteseerx 2016-01-08T11:54:10Z High-resolution seismic and ground-penetrating-radar (GPR) data have been acquired over Lake Nikolay in the western Lena Delta in order to study the uppermost basin fill and the bordering frozen margins. GPR (100 MHz antenna pair) measurements were completed on the frozen lake and its permafrost margins, while high-resolution seismic data were acquired from the lake during open-water conditions in summer using a 1.5–11.5 kHz Chirp profiler. The combined use of the two profiling systems allows stratigraphic profiling in both frozen and unfrozen parts of the lake. Shallow seismic reflection images of the uppermost 4 to 5 m of sediments are compared to GPR sections, which have approximately the same horizontal and vertical resolution. Short sediment cores aid calibrate the geophysical data. Copyright 2002 John Wiley & Sons, Ltd. KEY WORDS: permafrost geophysics; seismic and GPR; thermokarst lake; Siberia Text lena delta permafrost Thermokarst Siberia Unknown Frozen Lake ENVELOPE(76.108,76.108,-69.415,-69.415) Nikolay ENVELOPE(140.000,140.000,71.617,71.617) |
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Open Polar |
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Unknown |
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ftciteseerx |
language |
English |
description |
High-resolution seismic and ground-penetrating-radar (GPR) data have been acquired over Lake Nikolay in the western Lena Delta in order to study the uppermost basin fill and the bordering frozen margins. GPR (100 MHz antenna pair) measurements were completed on the frozen lake and its permafrost margins, while high-resolution seismic data were acquired from the lake during open-water conditions in summer using a 1.5–11.5 kHz Chirp profiler. The combined use of the two profiling systems allows stratigraphic profiling in both frozen and unfrozen parts of the lake. Shallow seismic reflection images of the uppermost 4 to 5 m of sediments are compared to GPR sections, which have approximately the same horizontal and vertical resolution. Short sediment cores aid calibrate the geophysical data. Copyright 2002 John Wiley & Sons, Ltd. KEY WORDS: permafrost geophysics; seismic and GPR; thermokarst lake; Siberia |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
G. J. Schwamborn J. K. Dix J. M. Bull V. Rachold |
spellingShingle |
G. J. Schwamborn J. K. Dix J. M. Bull V. Rachold High-resolution seismic and ground penetrating radar – geophysical profiling of a thermokarst lake |
author_facet |
G. J. Schwamborn J. K. Dix J. M. Bull V. Rachold |
author_sort |
G. J. Schwamborn |
title |
High-resolution seismic and ground penetrating radar – geophysical profiling of a thermokarst lake |
title_short |
High-resolution seismic and ground penetrating radar – geophysical profiling of a thermokarst lake |
title_full |
High-resolution seismic and ground penetrating radar – geophysical profiling of a thermokarst lake |
title_fullStr |
High-resolution seismic and ground penetrating radar – geophysical profiling of a thermokarst lake |
title_full_unstemmed |
High-resolution seismic and ground penetrating radar – geophysical profiling of a thermokarst lake |
title_sort |
high-resolution seismic and ground penetrating radar – geophysical profiling of a thermokarst lake |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.7321 http://eprints.soton.ac.uk/40817/1/permafrost_and_periglacial_processes.pdf |
long_lat |
ENVELOPE(76.108,76.108,-69.415,-69.415) ENVELOPE(140.000,140.000,71.617,71.617) |
geographic |
Frozen Lake Nikolay |
geographic_facet |
Frozen Lake Nikolay |
genre |
lena delta permafrost Thermokarst Siberia |
genre_facet |
lena delta permafrost Thermokarst Siberia |
op_source |
http://eprints.soton.ac.uk/40817/1/permafrost_and_periglacial_processes.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.7321 http://eprints.soton.ac.uk/40817/1/permafrost_and_periglacial_processes.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766062971525529600 |