Gravity Measurements in the Beaufort Sea Area

ARCTIC ◽  
1964 ◽  
Vol 17 (3) ◽  
Author(s):  
Donald Plouff
Keyword(s):  
Beaufort Sea ◽  
Gravity Measurements ◽  
Sea Area

scholarly journals A Study of Several Pressure Ridges and Ice Islands in the Canadian Beaufort Sea

1977 ◽  
Vol 19 (81) ◽  
pp. 666-667
Author(s):  
J. Hnatiuk ◽  
A. Kovacs ◽  
M. Mellor
Keyword(s):  
Physical And Mechanical Properties ◽  
Open Water ◽  
Beaufort Sea ◽  
Drill Hole ◽  
First Year ◽  
Future Issue ◽  
Design Studies ◽  
Geometric Configurations ◽  
Sea Bed ◽  
Sea Area

AbstractThe environment conditions in the southern Beaufort Sea are described with special emphasis on pressure ridges and ice islands. Techniques for determining the geometric configurations and the physical and mechanical properties of sea-ice structures and ice islands are described. Profiles of pressure ridges were determined by surface surveys, drill-hole probes and side-looking sonar scanning. Multi-year pressure ridges with thicknesses up to 18 m and widths up to 110 m were examined in detail. The first-year ridge of 22 m thickness and 100 m width was studied. Results are given for several multi-year ridges and the first-year ridge. Information obtained from dives under the ice is also given. Corresponding data are given for grounded ice islands with particular attention being given to contact between the ice and sea bed. A 19 m thick ice-island fragment grounded in 13 m of water was one of several investigated. Measurements of temperature, salinity, tensile strength and compressive strength are given for ice taken from old pressure ridges and factors influencing the interpretation of test data are discussed. The data obtained in this study will be used in engineering design studies for off-shore structures for drilling and production of hydrocarbons from the Beaufort Sea area. Exploratory drilling in shallow water has already been carried out and off-shore drilling from drill ships is scheduled to commence in the study area during the open-water season of 1976.This paper will be published in full in a future issue of Journal of Glaciology.

scholarly journals A Study of Several Pressure Ridges and Ice Islands in the Canadian Beaufort Sea

1978 ◽  
Vol 20 (84) ◽  
pp. 519-532 ◽  
Author(s):  
J. Hnatiuk ◽  
A. Kovacs ◽  
M. Mellor
Keyword(s):  
Physical And Mechanical Properties ◽  
Open Water ◽  
Beaufort Sea ◽  
Drill Hole ◽  
Offshore Structures ◽  
First Year ◽  
Offshore Drilling ◽  
Geometric Configurations ◽  
Sea Bed ◽  
Sea Area

Abstract The environmental conditions in the southern Beaufort Sea are described with special emphasis on pressure ridges and ice islands. Techniques for determining the geometric configurations and the physical and mechanical properties of sea-ice structures and ice islands are described. Profiles of pressure ridges were determined by surface surveys, drill-hole probes and side-looking sonar scanning. Multi-year pressure ridges with thicknesses up to 20 m and widths up to 120 m were examined in detail. The first-year ridge of 22 m thickness and 100 m width was studied. Results are given for several multi-year and the first-year ridges. Information obtained from dives under the ice is also given. Corresponding data are given for grounded ice islands with particular attention being given to contact between the ice and sea bed. A 20 m thick ice-island fragment grounded in 15 m of water was one of several investigated. Measurements of temperature, salinity, tensile strength, and compressive strength are given for ice taken from old pressure ridges and factors influencing the interpretation of test data were discussed. The data obtained in this study will be used in engineering design studies for offshore structures for drilling and production of hydrocarbons from the Beaufort Sea area. Exploratory drilling in shallow water has already been carried out and offshore drilling from drillships is scheduled to commence in the study area during the open water season of 1976.

scholarly journals Aeromagnetic anomalies in the Beaufort Sea area

1996 ◽  
Author(s):  
D A Forsyth ◽  
L S Lane ◽  
W Miles
Keyword(s):  
Beaufort Sea ◽  
Aeromagnetic Anomalies ◽  
Sea Area

scholarly journals Characterization of epibenthic community structure in the Beaufort Sea area

2018 ◽  
Author(s):  
Laure de Montety ◽  
Philippe Archambault ◽  
Andrew R Majewski ◽  
Cindy Grant ◽  
James D Reist
Keyword(s):  
Community Structure ◽  
Fish Habitat ◽  
Organic Matter Content ◽  
Beaufort Sea ◽  
Matter Content ◽  
Ecological Indicator ◽  
Sediment Grain Size ◽  
Marine Traffic ◽  
Amundsen Gulf ◽  
Sea Area

The Canadian Arctic is facing new issues with increased marine traffic, exploration and exploitation of resources. Knowledge of the environment is needed to address these issues. Fisheries and Oceans Canada conducted a survey during summers 2012 to 2014 in the Canadian Beaufort Sea and the Amundsen Gulf. The “BREA-MFP” Beaufort Regional Environmental Assessment-Marine Fish Project” objective was to improve knowledge of the composition of fish communities and their habitats in offshore waters of the Beaufort Sea and the Amundsen Gulf. As an important part of the fish habitat and diet, the epibenthos was sampled to characterize and improve the knowledge of epibenthic community structure (diversity and abundance) in these areas. The benthos is ideal as an ecological indicator index because organisms are sessile, highly diverse, and long-lived. Moreover, environmental factors such as organic matter content, benthic Chla, and sediment grain size are known to influence the benthic community composition. Collected data are used to establish baselines for epibenthic diversity, abundances, and community compositions, and for comparisons among regions (Beaufort Sea, Amundsen Gulf) and gradients (nearshore-offshore depth, East-West). Furthermore, the study highlighted new occurrences of species for the area indicating additional studies are needed to assess benthic biodiversity in this area.

scholarly journals Characterization of epibenthic community structure in the Beaufort Sea area

2018 ◽  
Author(s):  
Laure de Montety ◽  
Philippe Archambault ◽  
Andrew R Majewski ◽  
Cindy Grant ◽  
James D Reist
Keyword(s):  
Community Structure ◽  
Fish Habitat ◽  
Organic Matter Content ◽  
Beaufort Sea ◽  
Matter Content ◽  
Ecological Indicator ◽  
Sediment Grain Size ◽  
Marine Traffic ◽  
Amundsen Gulf ◽  
Sea Area

The Canadian Arctic is facing new issues with increased marine traffic, exploration and exploitation of resources. Knowledge of the environment is needed to address these issues. Fisheries and Oceans Canada conducted a survey during summers 2012 to 2014 in the Canadian Beaufort Sea and the Amundsen Gulf. The “BREA-MFP” Beaufort Regional Environmental Assessment-Marine Fish Project” objective was to improve knowledge of the composition of fish communities and their habitats in offshore waters of the Beaufort Sea and the Amundsen Gulf. As an important part of the fish habitat and diet, the epibenthos was sampled to characterize and improve the knowledge of epibenthic community structure (diversity and abundance) in these areas. The benthos is ideal as an ecological indicator index because organisms are sessile, highly diverse, and long-lived. Moreover, environmental factors such as organic matter content, benthic Chla, and sediment grain size are known to influence the benthic community composition. Collected data are used to establish baselines for epibenthic diversity, abundances, and community compositions, and for comparisons among regions (Beaufort Sea, Amundsen Gulf) and gradients (nearshore-offshore depth, East-West). Furthermore, the study highlighted new occurrences of species for the area indicating additional studies are needed to assess benthic biodiversity in this area.

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