Ocean Bottom Seismometer Experiment on the Beaufort shelf and slope region conducted during Expedition ARA04C on the IBRV Araon
Expedition ARA04C (conducted from September 10 - September 26, 2013 in Canadian waters) on the Korean icebreaker IBRV Araon was laid out to investigate the Beaufort Sea shelf and slope region and collect geo-scientific data for various aspects relevant to the GSC's mandated regional geo-hazard...
Main Authors: | , , , , , , , , |
---|---|
Format: | Report |
Language: | English |
Published: |
2014
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/29916/ https://oceanrep.geomar.de/id/eprint/29916/2/of_7621.pdf https://doi.org/10.4095/295550 |
id |
ftoceanrep:oai:oceanrep.geomar.de:29916 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:29916 2023-05-15T15:40:36+02:00 Ocean Bottom Seismometer Experiment on the Beaufort shelf and slope region conducted during Expedition ARA04C on the IBRV Araon Riedel, Michael Ulmi, M. Conway, K. W. Standen, G. Rosenberger, A. Hong, J. K. Jin, Y. K. Kim, H. S. Dallimore, S. R. 2014 text https://oceanrep.geomar.de/id/eprint/29916/ https://oceanrep.geomar.de/id/eprint/29916/2/of_7621.pdf https://doi.org/10.4095/295550 en eng https://oceanrep.geomar.de/id/eprint/29916/2/of_7621.pdf Riedel, M. , Ulmi, M., Conway, K. W., Standen, G., Rosenberger, A., Hong, J. K., Jin, Y. K., Kim, H. S. and Dallimore, S. R. (2014) Ocean Bottom Seismometer Experiment on the Beaufort shelf and slope region conducted during Expedition ARA04C on the IBRV Araon. . Geological Survey of Canada, Open File , 7621 . UNSPECIFIED, 55 pp. DOI 10.4095/295550 <https://doi.org/10.4095/295550>. doi:10.4095/295550 cc_by_3.0 Report NonPeerReviewed 2014 ftoceanrep https://doi.org/10.4095/295550 2023-04-07T15:21:05Z Expedition ARA04C (conducted from September 10 - September 26, 2013 in Canadian waters) on the Korean icebreaker IBRV Araon was laid out to investigate the Beaufort Sea shelf and slope region and collect geo-scientific data for various aspects relevant to the GSC's mandated regional geo-hazard assessment of the offshore Beaufort region. A critical element of the geohazards is the distribution of permafrost across the submerged shelf. To address this question a set of six Ocean Bottom Seismometers (OBS) were deployed in a grid pattern across the near shelf-edge zone, and a set of three OBS was used in a second deployment along a central shelfcrossing north-east to south-west oriented line. Initial data processing was carried out, which is required for any follow-up detailed velocity analysis. The processing included definition of exact shot times, geometry calculation, OBS position re-location, and OBS orientation analysis. A preliminary analysis of the hydrophone and vertical-component data from the OBS stations reveals a P-wave-velocity structure with values ranging from 1800 m/s to over 4000 m/s indicative of wide-spread ice-bearing sediments. This open-file report also contains the digital OBS data for all stations in standard SEGY format, together with the required raw and processed geometry information. Report Beaufort Sea Ice permafrost OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Beaufort Shelf ENVELOPE(-142.500,-142.500,70.000,70.000) |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Expedition ARA04C (conducted from September 10 - September 26, 2013 in Canadian waters) on the Korean icebreaker IBRV Araon was laid out to investigate the Beaufort Sea shelf and slope region and collect geo-scientific data for various aspects relevant to the GSC's mandated regional geo-hazard assessment of the offshore Beaufort region. A critical element of the geohazards is the distribution of permafrost across the submerged shelf. To address this question a set of six Ocean Bottom Seismometers (OBS) were deployed in a grid pattern across the near shelf-edge zone, and a set of three OBS was used in a second deployment along a central shelfcrossing north-east to south-west oriented line. Initial data processing was carried out, which is required for any follow-up detailed velocity analysis. The processing included definition of exact shot times, geometry calculation, OBS position re-location, and OBS orientation analysis. A preliminary analysis of the hydrophone and vertical-component data from the OBS stations reveals a P-wave-velocity structure with values ranging from 1800 m/s to over 4000 m/s indicative of wide-spread ice-bearing sediments. This open-file report also contains the digital OBS data for all stations in standard SEGY format, together with the required raw and processed geometry information. |
format |
Report |
author |
Riedel, Michael Ulmi, M. Conway, K. W. Standen, G. Rosenberger, A. Hong, J. K. Jin, Y. K. Kim, H. S. Dallimore, S. R. |
spellingShingle |
Riedel, Michael Ulmi, M. Conway, K. W. Standen, G. Rosenberger, A. Hong, J. K. Jin, Y. K. Kim, H. S. Dallimore, S. R. Ocean Bottom Seismometer Experiment on the Beaufort shelf and slope region conducted during Expedition ARA04C on the IBRV Araon |
author_facet |
Riedel, Michael Ulmi, M. Conway, K. W. Standen, G. Rosenberger, A. Hong, J. K. Jin, Y. K. Kim, H. S. Dallimore, S. R. |
author_sort |
Riedel, Michael |
title |
Ocean Bottom Seismometer Experiment on the Beaufort shelf and slope region conducted during Expedition ARA04C on the IBRV Araon |
title_short |
Ocean Bottom Seismometer Experiment on the Beaufort shelf and slope region conducted during Expedition ARA04C on the IBRV Araon |
title_full |
Ocean Bottom Seismometer Experiment on the Beaufort shelf and slope region conducted during Expedition ARA04C on the IBRV Araon |
title_fullStr |
Ocean Bottom Seismometer Experiment on the Beaufort shelf and slope region conducted during Expedition ARA04C on the IBRV Araon |
title_full_unstemmed |
Ocean Bottom Seismometer Experiment on the Beaufort shelf and slope region conducted during Expedition ARA04C on the IBRV Araon |
title_sort |
ocean bottom seismometer experiment on the beaufort shelf and slope region conducted during expedition ara04c on the ibrv araon |
publishDate |
2014 |
url |
https://oceanrep.geomar.de/id/eprint/29916/ https://oceanrep.geomar.de/id/eprint/29916/2/of_7621.pdf https://doi.org/10.4095/295550 |
long_lat |
ENVELOPE(-142.500,-142.500,70.000,70.000) |
geographic |
Beaufort Shelf |
geographic_facet |
Beaufort Shelf |
genre |
Beaufort Sea Ice permafrost |
genre_facet |
Beaufort Sea Ice permafrost |
op_relation |
https://oceanrep.geomar.de/id/eprint/29916/2/of_7621.pdf Riedel, M. , Ulmi, M., Conway, K. W., Standen, G., Rosenberger, A., Hong, J. K., Jin, Y. K., Kim, H. S. and Dallimore, S. R. (2014) Ocean Bottom Seismometer Experiment on the Beaufort shelf and slope region conducted during Expedition ARA04C on the IBRV Araon. . Geological Survey of Canada, Open File , 7621 . UNSPECIFIED, 55 pp. DOI 10.4095/295550 <https://doi.org/10.4095/295550>. doi:10.4095/295550 |
op_rights |
cc_by_3.0 |
op_doi |
https://doi.org/10.4095/295550 |
_version_ |
1766373164870270976 |