On-ice vibroseis and snowstreamer systems for geoscientific research
We present implementations of vibroseis system configurations with a snowstreamer for over-ice long-distance seismic traverses (>100 km). The configurations have been evaluated in Antarctica on ice sheet and ice shelf areas in the period 2010–2014. We discuss results of two different vibroseis so...
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Online Access: | https://epic.awi.de/id/eprint/37588/ https://epic.awi.de/id/eprint/37588/1/Eisen_etal_2015_PolarScience-vibroseis-streamer.pdf http://www.sciencedirect.com/science/article/pii/S1873965214000711# https://hdl.handle.net/10013/epic.45202 https://hdl.handle.net/10013/epic.45202.d001 |
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ftawi:oai:epic.awi.de:37588 2024-09-15T17:47:05+00:00 On-ice vibroseis and snowstreamer systems for geoscientific research Eisen, Olaf Hofstede, Coen Diez, Anja Kristoffersen, Yngve Lambrecht, Astrid Mayer, Christoph Blenkner, Rick HILMARSSON, Sverrir Æ. 2015-11-07 application/pdf https://epic.awi.de/id/eprint/37588/ https://epic.awi.de/id/eprint/37588/1/Eisen_etal_2015_PolarScience-vibroseis-streamer.pdf http://www.sciencedirect.com/science/article/pii/S1873965214000711# https://hdl.handle.net/10013/epic.45202 https://hdl.handle.net/10013/epic.45202.d001 unknown Elsevier https://epic.awi.de/id/eprint/37588/1/Eisen_etal_2015_PolarScience-vibroseis-streamer.pdf https://hdl.handle.net/10013/epic.45202.d001 Eisen, O. orcid:0000-0002-6380-962X , Hofstede, C. orcid:0000-0002-6015-6918 , Diez, A. , Kristoffersen, Y. , Lambrecht, A. , Mayer, C. , Blenkner, R. and HILMARSSON, S. Æ. (2015) On-ice vibroseis and snowstreamer systems for geoscientific research , Polar Science, 9 , pp. 51-65 . doi:10.1016/j.polar.2014.10.003 <https://doi.org/10.1016/j.polar.2014.10.003> , hdl:10013/epic.45202 EPIC3Polar Science, Elsevier, 9, pp. 51-65 Article isiRev 2015 ftawi https://doi.org/10.1016/j.polar.2014.10.003 2024-06-24T04:11:05Z We present implementations of vibroseis system configurations with a snowstreamer for over-ice long-distance seismic traverses (>100 km). The configurations have been evaluated in Antarctica on ice sheet and ice shelf areas in the period 2010–2014. We discuss results of two different vibroseis sources: Failing Y-1100 on skis with a peak force of 120 kN in the frequency range 10–110 Hz; IVI EnviroVibe with a nominal peak force of 66 kN in the nominal frequency range 10–300 Hz. All measurements used a well-established 60 channel 1.5 km snowstreamer for the recording. Employed forces during sweeps were limited to less than 80% of the peak force. Maximum sweep frequencies, with a typical duration of 10 s, were 100 and 250 Hz for the Failing and EnviroVibe, respectively. Three different concepts for source movement were employed: the Failing vibrator was mounted with wheels on skis and pulled by a Pistenbully snow tractor. The EnviroVibe was operated self-propelled on Mattracks on the Antarctic plateau. This lead to difficulties in soft snow. For later implementations the EnviroVibe with tracks was put on a polyethylene (PE) sled. The sled had a hole in the center to lower the vibrator baseplate directly onto the snow surface. With the latter setup, data production varied between 20 km/day for 6-fold and 40 km/day for single fold for 9 h/day of measurements. The combination of tracks with the PE-sled was especially advantageous on hard and rough surfaces because of the flexibility of each component and the relatively lose mounting. The systems presented here are suitable to obtain data of subglacial and sub-seabed sediment layers and englacial layering in comparable quality as obtained from marine geophysics and land-based explosive surveys. The large offset aperture of the streamer overcomes limitations of radar systems for imaging of steep along-track subglacial topography. With joint international scientific and logistic efforts, large-scale mapping of Antarctica's and Greenland's subglacial geology, ice-shelf ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Polar Science Polar Science Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Polar Science 9 1 51 65 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
We present implementations of vibroseis system configurations with a snowstreamer for over-ice long-distance seismic traverses (>100 km). The configurations have been evaluated in Antarctica on ice sheet and ice shelf areas in the period 2010–2014. We discuss results of two different vibroseis sources: Failing Y-1100 on skis with a peak force of 120 kN in the frequency range 10–110 Hz; IVI EnviroVibe with a nominal peak force of 66 kN in the nominal frequency range 10–300 Hz. All measurements used a well-established 60 channel 1.5 km snowstreamer for the recording. Employed forces during sweeps were limited to less than 80% of the peak force. Maximum sweep frequencies, with a typical duration of 10 s, were 100 and 250 Hz for the Failing and EnviroVibe, respectively. Three different concepts for source movement were employed: the Failing vibrator was mounted with wheels on skis and pulled by a Pistenbully snow tractor. The EnviroVibe was operated self-propelled on Mattracks on the Antarctic plateau. This lead to difficulties in soft snow. For later implementations the EnviroVibe with tracks was put on a polyethylene (PE) sled. The sled had a hole in the center to lower the vibrator baseplate directly onto the snow surface. With the latter setup, data production varied between 20 km/day for 6-fold and 40 km/day for single fold for 9 h/day of measurements. The combination of tracks with the PE-sled was especially advantageous on hard and rough surfaces because of the flexibility of each component and the relatively lose mounting. The systems presented here are suitable to obtain data of subglacial and sub-seabed sediment layers and englacial layering in comparable quality as obtained from marine geophysics and land-based explosive surveys. The large offset aperture of the streamer overcomes limitations of radar systems for imaging of steep along-track subglacial topography. With joint international scientific and logistic efforts, large-scale mapping of Antarctica's and Greenland's subglacial geology, ice-shelf ... |
format |
Article in Journal/Newspaper |
author |
Eisen, Olaf Hofstede, Coen Diez, Anja Kristoffersen, Yngve Lambrecht, Astrid Mayer, Christoph Blenkner, Rick HILMARSSON, Sverrir Æ. |
spellingShingle |
Eisen, Olaf Hofstede, Coen Diez, Anja Kristoffersen, Yngve Lambrecht, Astrid Mayer, Christoph Blenkner, Rick HILMARSSON, Sverrir Æ. On-ice vibroseis and snowstreamer systems for geoscientific research |
author_facet |
Eisen, Olaf Hofstede, Coen Diez, Anja Kristoffersen, Yngve Lambrecht, Astrid Mayer, Christoph Blenkner, Rick HILMARSSON, Sverrir Æ. |
author_sort |
Eisen, Olaf |
title |
On-ice vibroseis and snowstreamer systems for geoscientific research |
title_short |
On-ice vibroseis and snowstreamer systems for geoscientific research |
title_full |
On-ice vibroseis and snowstreamer systems for geoscientific research |
title_fullStr |
On-ice vibroseis and snowstreamer systems for geoscientific research |
title_full_unstemmed |
On-ice vibroseis and snowstreamer systems for geoscientific research |
title_sort |
on-ice vibroseis and snowstreamer systems for geoscientific research |
publisher |
Elsevier |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/37588/ https://epic.awi.de/id/eprint/37588/1/Eisen_etal_2015_PolarScience-vibroseis-streamer.pdf http://www.sciencedirect.com/science/article/pii/S1873965214000711# https://hdl.handle.net/10013/epic.45202 https://hdl.handle.net/10013/epic.45202.d001 |
genre |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Polar Science Polar Science |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Polar Science Polar Science |
op_source |
EPIC3Polar Science, Elsevier, 9, pp. 51-65 |
op_relation |
https://epic.awi.de/id/eprint/37588/1/Eisen_etal_2015_PolarScience-vibroseis-streamer.pdf https://hdl.handle.net/10013/epic.45202.d001 Eisen, O. orcid:0000-0002-6380-962X , Hofstede, C. orcid:0000-0002-6015-6918 , Diez, A. , Kristoffersen, Y. , Lambrecht, A. , Mayer, C. , Blenkner, R. and HILMARSSON, S. Æ. (2015) On-ice vibroseis and snowstreamer systems for geoscientific research , Polar Science, 9 , pp. 51-65 . doi:10.1016/j.polar.2014.10.003 <https://doi.org/10.1016/j.polar.2014.10.003> , hdl:10013/epic.45202 |
op_doi |
https://doi.org/10.1016/j.polar.2014.10.003 |
container_title |
Polar Science |
container_volume |
9 |
container_issue |
1 |
container_start_page |
51 |
op_container_end_page |
65 |
_version_ |
1810495671258578944 |