Iceberg risk to seabed installations on the Grand Banks
The design of seabed installations and pipelines on the Grand Banks is influenced by the presence of icebergs. Particularly for those installations placed below the mudline, scouring icebergs are of concern. In the present study, data from the Grand Banks Scour Catalogue (GBSC) including a recent up...
Main Authors: | , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2001
|
Subjects: | |
Online Access: | https://nrc-publications.canada.ca/eng/view/accepted/?id=9babcf35-63d4-4372-ad1e-49d926b6392b https://nrc-publications.canada.ca/eng/view/object/?id=9babcf35-63d4-4372-ad1e-49d926b6392b https://nrc-publications.canada.ca/fra/voir/objet/?id=9babcf35-63d4-4372-ad1e-49d926b6392b |
id |
ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:12328596 |
---|---|
record_format |
openpolar |
spelling |
ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:12328596 2023-05-15T14:22:10+02:00 Iceberg risk to seabed installations on the Grand Banks Croasdale, Ken Brown, Rob Campbell, Patrick Crocker, Greg Jordaan, Ian King, Tony McKenna, Richard Myers, Robert 2001-08-12 text https://nrc-publications.canada.ca/eng/view/accepted/?id=9babcf35-63d4-4372-ad1e-49d926b6392b https://nrc-publications.canada.ca/eng/view/object/?id=9babcf35-63d4-4372-ad1e-49d926b6392b https://nrc-publications.canada.ca/fra/voir/objet/?id=9babcf35-63d4-4372-ad1e-49d926b6392b eng eng Proceedings of the 16th International Conference on Port and Ocean Engineering under Arctic Conditions POAC舗01, 16th International Conference on Port and Ocean Engineering under Arctic Conditions (POAC'01), August 12-17, 2001, Ottawa, Ontario, Canada, Volume: 2, Publication date: 2001-08-12, Pages: 1019–1028 article 2001 ftnrccanada 2021-09-01T06:20:19Z The design of seabed installations and pipelines on the Grand Banks is influenced by the presence of icebergs. Particularly for those installations placed below the mudline, scouring icebergs are of concern. In the present study, data from the Grand Banks Scour Catalogue (GBSC) including a recent update from wellsite surveys were summarized for the northeastern portion of the Grand Banks. Scour frequency was determined from the historical presence of icebergs, drift speeds and iceberg draft data, and was compared with frequency estimates derived from the observed density of scour marks on the seabed and the likely maximum age of these marks (2500 years). The probability of iceberg contact with installations below the mud-line was determined from the dimensions of the scour marks (from the GBSC) and their frequency. In addition, iceberg scour mechanisms were investigated through a comprehensive probabilistic model of the process, incorporating iceberg hydrostatic characteristics and seabed reaction forces. NRC publication: Yes Article in Journal/Newspaper Arctic National Research Council Canada: NRC Publications Archive |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
description |
The design of seabed installations and pipelines on the Grand Banks is influenced by the presence of icebergs. Particularly for those installations placed below the mudline, scouring icebergs are of concern. In the present study, data from the Grand Banks Scour Catalogue (GBSC) including a recent update from wellsite surveys were summarized for the northeastern portion of the Grand Banks. Scour frequency was determined from the historical presence of icebergs, drift speeds and iceberg draft data, and was compared with frequency estimates derived from the observed density of scour marks on the seabed and the likely maximum age of these marks (2500 years). The probability of iceberg contact with installations below the mud-line was determined from the dimensions of the scour marks (from the GBSC) and their frequency. In addition, iceberg scour mechanisms were investigated through a comprehensive probabilistic model of the process, incorporating iceberg hydrostatic characteristics and seabed reaction forces. NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Croasdale, Ken Brown, Rob Campbell, Patrick Crocker, Greg Jordaan, Ian King, Tony McKenna, Richard Myers, Robert |
spellingShingle |
Croasdale, Ken Brown, Rob Campbell, Patrick Crocker, Greg Jordaan, Ian King, Tony McKenna, Richard Myers, Robert Iceberg risk to seabed installations on the Grand Banks |
author_facet |
Croasdale, Ken Brown, Rob Campbell, Patrick Crocker, Greg Jordaan, Ian King, Tony McKenna, Richard Myers, Robert |
author_sort |
Croasdale, Ken |
title |
Iceberg risk to seabed installations on the Grand Banks |
title_short |
Iceberg risk to seabed installations on the Grand Banks |
title_full |
Iceberg risk to seabed installations on the Grand Banks |
title_fullStr |
Iceberg risk to seabed installations on the Grand Banks |
title_full_unstemmed |
Iceberg risk to seabed installations on the Grand Banks |
title_sort |
iceberg risk to seabed installations on the grand banks |
publishDate |
2001 |
url |
https://nrc-publications.canada.ca/eng/view/accepted/?id=9babcf35-63d4-4372-ad1e-49d926b6392b https://nrc-publications.canada.ca/eng/view/object/?id=9babcf35-63d4-4372-ad1e-49d926b6392b https://nrc-publications.canada.ca/fra/voir/objet/?id=9babcf35-63d4-4372-ad1e-49d926b6392b |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Proceedings of the 16th International Conference on Port and Ocean Engineering under Arctic Conditions POAC舗01, 16th International Conference on Port and Ocean Engineering under Arctic Conditions (POAC'01), August 12-17, 2001, Ottawa, Ontario, Canada, Volume: 2, Publication date: 2001-08-12, Pages: 1019–1028 |
_version_ |
1766294817636089856 |