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TitleNearshore waves in the southern Beaufort Sea during severe arctic storms
AuthorHoque, M A; Solomon, S M; Perrie, W
SourceProceedings of the 20th International conference on port and ocean engineering under arctic conditions; 2009, 10 pages
LinksInternational Conference on Port and Ocean Engineering under Arctic Conditions
Alt SeriesEarth Sciences Sector, Contribution Series 20080492
Meeting20th International Conference on Port and Ocean Engineering under Arctic Conditions 2009; Lulea; SE; June 9-12, 2009
ProvinceNorthern offshore region; Northwest Territories
NTS107B/09; 107B/10; 107B/11; 107B/12; 107B/13; 107B/14; 107B/15; 107B/16; 107C; 117A/09; 117A/10; 117A/11; 117A/12; 117A/13; 117A/14; 117A/15; 117A/16; 117D
AreaBeaufort Sea; Mackenzie Delta; Mackenzie Bay
Lat/Long WENS-140.0000 -132.0000 70.0000 68.5000
Subjectsmarine geology; environmental geology; coastal environment; coastal studies; coastal erosion; storms; storm deposits; ice conditions; models; modelling
Illustrationslocation maps; plots; tables
ProgramGeoscience for Oceans Management
Released2009 01 01
AbstractFour major storms (in 1985, 1993, 1999 and 2000) associated with significant coastal impacts and representing a range of ice conditions are simulated to study wave generation in the nearshore region around the Mackenzie Delta of the southern Beaufort Sea. Simulations are performed using SWAN40.51 under its non-stationary and two-dimensional mode in a fine resolution domain nested within a coarse resolution domain. Wind forcing in the form of an hourly hindcast over the southern Beaufort Sea is provided from the Meteorological Service of Canada Beaufort (MSCB) 21-year wind reanalysis. Bathymetry for the coarse domain is from ETOPO2. A fine resolution bathymetry for the nested domain was generated based primarily on data from Canadian Hydrographic Service charts and NRCan field measurements. Moving boundaries of the ice edges are considered in the simulations. Wave attenuation along several transects are examined. Severe waves are found to be predominantly from the northwest direction. Fully developed seas in the northwest quadrant of the nested region reached maximum wave heights of 4.5 m, 4.6 m and 5.9 m during the storm cases in 1985, 1993 and 1999 respectively. The fetch during the 2000 storm was limited by the existence of ice cover and the maximum wave height was 3.1 m.

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