Ice interaction with Adams Island, Winter 1984-85

A small island can be taken as being representative of a man- made offshore structure. A comprehensive study of ice interaction with such an island and response of the ice sheet to environmental driving forces was carried out over the winter 1984/85. Measurements included meteorological and oceanogr...

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Main Authors: Frederking, R. M. W., Wessels, E., Maxwell, J. B., Prinsenberg, S., Sayed, M.
Format: Article in Journal/Newspaper
Language:English
Published: 1986
Subjects:
Online Access:https://nrc-publications.canada.ca/eng/view/ft/?id=aefdbce6-0628-4808-8f2c-9bd6a7c1aa70
https://nrc-publications.canada.ca/eng/view/object/?id=aefdbce6-0628-4808-8f2c-9bd6a7c1aa70
https://nrc-publications.canada.ca/fra/voir/objet/?id=aefdbce6-0628-4808-8f2c-9bd6a7c1aa70
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spelling ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:20331489 2024-09-15T17:34:58+00:00 Ice interaction with Adams Island, Winter 1984-85 Frederking, R. M. W. Wessels, E. Maxwell, J. B. Prinsenberg, S. Sayed, M. 1986-08-18 text https://nrc-publications.canada.ca/eng/view/ft/?id=aefdbce6-0628-4808-8f2c-9bd6a7c1aa70 https://nrc-publications.canada.ca/eng/view/object/?id=aefdbce6-0628-4808-8f2c-9bd6a7c1aa70 https://nrc-publications.canada.ca/fra/voir/objet/?id=aefdbce6-0628-4808-8f2c-9bd6a7c1aa70 eng eng 8th International IAHR Symposium on Ice: 18 August 1986, Iowa City, Iowa, United States, Publication date: 1986-08-18 report_number:IRC-P-1504 ice loads charge de glace islands île small islands ice sheet response environmental driving forces ice cover movements meteorological factors oceanographic factors in situ stresses tidal variation cyclical variations current wind air temperature maximum total load article 1986 ftnrccanada 2024-08-05T14:05:07Z A small island can be taken as being representative of a man- made offshore structure. A comprehensive study of ice interaction with such an island and response of the ice sheet to environmental driving forces was carried out over the winter 1984/85. Measurements included meteorological and oceanographic factors as well as ice-cover movements and in-situ stresses. Tidal variations, both semi-diurnal and fortnightly, appear to be responsible for variable horizontal ice-cover movement rates and hence cyclical variations in measured ice stresses. Maximum total load generated on the island was approximately 60 MN, equivalent to an average stress of 300 kPa over the top 1 m of the ice thickness and 200 m width. Local pressures over an area of 0.5 m2 reached a maximum of 500 kPa. Un îlot peut être considéré comme étant représentatif d'un ouvrage construit en mer. Une vaste étude concernant l'interaction des glaces avec un îlot et la réponse du manteau glaciel aux éléments naturels a été menée au cours de l'hiver 1984-1985. Les mesures effectuées ont porté sur les facteurs météorologiques et océanographiques, ainsi que sur les mouvements du manteau de glace et les contraintes in situ. Les variations des marées, tant semi-diurnes que semi-mensuelles, semblent être responsables de la vitesse variable de déplacement horizontal du manteau de glace et, par conséquent, des fluctuations cycliques des contraintes mesurées dans la glace. Le courant, le vent et la température de l'air ont également un effet sur les mouvements et les contraintes. La charge totale maximale exercée sur l'î lot était d'environ 60 MN, soit l'équivalent d'une contrainte moyenne de 300 kPa sur le premier mètre d'épaisseur de glace, sur une largeur de 200 m. Les pressions locales sur une surface de 0,5 m2 ont atteint un maximum de 500 kPa. Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper Adams Island Ice Sheet National Research Council Canada: NRC Publications Archive
institution Open Polar
collection National Research Council Canada: NRC Publications Archive
op_collection_id ftnrccanada
language English
topic ice loads
charge de glace
islands
île
small islands
ice sheet response
environmental driving forces
ice cover movements
meteorological factors
oceanographic factors
in situ stresses
tidal variation
cyclical variations
current
wind
air temperature
maximum total load
spellingShingle ice loads
charge de glace
islands
île
small islands
ice sheet response
environmental driving forces
ice cover movements
meteorological factors
oceanographic factors
in situ stresses
tidal variation
cyclical variations
current
wind
air temperature
maximum total load
Frederking, R. M. W.
Wessels, E.
Maxwell, J. B.
Prinsenberg, S.
Sayed, M.
Ice interaction with Adams Island, Winter 1984-85
topic_facet ice loads
charge de glace
islands
île
small islands
ice sheet response
environmental driving forces
ice cover movements
meteorological factors
oceanographic factors
in situ stresses
tidal variation
cyclical variations
current
wind
air temperature
maximum total load
description A small island can be taken as being representative of a man- made offshore structure. A comprehensive study of ice interaction with such an island and response of the ice sheet to environmental driving forces was carried out over the winter 1984/85. Measurements included meteorological and oceanographic factors as well as ice-cover movements and in-situ stresses. Tidal variations, both semi-diurnal and fortnightly, appear to be responsible for variable horizontal ice-cover movement rates and hence cyclical variations in measured ice stresses. Maximum total load generated on the island was approximately 60 MN, equivalent to an average stress of 300 kPa over the top 1 m of the ice thickness and 200 m width. Local pressures over an area of 0.5 m2 reached a maximum of 500 kPa. Un îlot peut être considéré comme étant représentatif d'un ouvrage construit en mer. Une vaste étude concernant l'interaction des glaces avec un îlot et la réponse du manteau glaciel aux éléments naturels a été menée au cours de l'hiver 1984-1985. Les mesures effectuées ont porté sur les facteurs météorologiques et océanographiques, ainsi que sur les mouvements du manteau de glace et les contraintes in situ. Les variations des marées, tant semi-diurnes que semi-mensuelles, semblent être responsables de la vitesse variable de déplacement horizontal du manteau de glace et, par conséquent, des fluctuations cycliques des contraintes mesurées dans la glace. Le courant, le vent et la température de l'air ont également un effet sur les mouvements et les contraintes. La charge totale maximale exercée sur l'î lot était d'environ 60 MN, soit l'équivalent d'une contrainte moyenne de 300 kPa sur le premier mètre d'épaisseur de glace, sur une largeur de 200 m. Les pressions locales sur une surface de 0,5 m2 ont atteint un maximum de 500 kPa. Peer reviewed: Yes NRC publication: Yes
format Article in Journal/Newspaper
author Frederking, R. M. W.
Wessels, E.
Maxwell, J. B.
Prinsenberg, S.
Sayed, M.
author_facet Frederking, R. M. W.
Wessels, E.
Maxwell, J. B.
Prinsenberg, S.
Sayed, M.
author_sort Frederking, R. M. W.
title Ice interaction with Adams Island, Winter 1984-85
title_short Ice interaction with Adams Island, Winter 1984-85
title_full Ice interaction with Adams Island, Winter 1984-85
title_fullStr Ice interaction with Adams Island, Winter 1984-85
title_full_unstemmed Ice interaction with Adams Island, Winter 1984-85
title_sort ice interaction with adams island, winter 1984-85
publishDate 1986
url https://nrc-publications.canada.ca/eng/view/ft/?id=aefdbce6-0628-4808-8f2c-9bd6a7c1aa70
https://nrc-publications.canada.ca/eng/view/object/?id=aefdbce6-0628-4808-8f2c-9bd6a7c1aa70
https://nrc-publications.canada.ca/fra/voir/objet/?id=aefdbce6-0628-4808-8f2c-9bd6a7c1aa70
genre Adams Island
Ice Sheet
genre_facet Adams Island
Ice Sheet
op_relation 8th International IAHR Symposium on Ice: 18 August 1986, Iowa City, Iowa, United States, Publication date: 1986-08-18
report_number:IRC-P-1504
_version_ 1810435213979811840