... may 20 ship hull measurement area shoulder panel panel force level ice mid-bow panel frequency canada government ice condition pack ice ice force force panel impact force hull structure polarstern st-laurent ice impact force may 17 ABSTRACT The R.V. POLARSTERN carried...

... canada government grand bank cell 110 basin study area reservoir characterization grid cell pack ice concentration gas exploration wave height overview upstream oil & gas labrador offshore newfoundland sedimentary basin air temperature surface temperature metocean study...

... ABSTRACT This paper examines the interaction of pack ice with a Floating Production Storage and Offloading unit (FPSO). The vessel maintains position using a thruster-assisted turret mooring. An ice dynamics model is used to conduct numerical simulations of the interaction of the ice cover...

... peak force ice coverage operation ice force sway direction pack ice canada vessel station-keeping operation subsea system simulation peak ice force ice condition thickness numerical simulation floe size surge direction acceptable ice condition ice thickness An Illustration...

... ABSTRACT While operating on the Arctic route, ships may face various issues. The ice environment, such as level ice, pre-sawn, pack ice, ice ridge and brash ice, is one of the sources of those issues. Prediction of ship resistance in brash ice is very important for safe operation...

... ABSTRACT Ice drift measurements are needed to support ice management and navigation in arctic and sub-arctic regions where pack ice and/or icebergs are present. A method is described which can provide real time measurement of ice drift during operations, or can be used to analyze historical...

... Abstract Arctic ice condition is a challenge for Dynamic Positioning (DP) systems, as it is different from that in open water. This paper demonstrated a numerical model of DP vessel operating in a pack ice field. A series of simulation was conducted in a broken ice field. The pack ice forces...

... Ice Property Variability of the Pack Ice off the Labrador Coast, Canada Prinsenberg1, S.J., I.K. Peterson1, J.S. Holladay2 and L. Lalumiere3 1 Fisheries and Oceans Canada, Bedford Institute of Oceanography, Dartmouth, N.S. 2 Geosensors Inc. Toronto, Ontario 3 Sensors by Design Ltd. Newmarket...

..., currents, etc AUVs can aid in producing models of local ecosystems including those within the Arctic environment. This research focuses on enabling Autonomous Underwater Vehicles (AUVs) with the ability to sample near sheets of pack ice (see Fig. 1) that can move, grow, and change shape. Motivating...

... ABSTRACT During the summer of 2009, ice observations were made using Electromagnetic, Video and Laser sensors mounted on an helicopter that was stationed on the CCGS Amundsen while she traversed the Canadian Beaufort Sea pack ice from August 28 to September 12. The Arctic pack ice encountered...

... conditions in which tests were conducted included thin level intact ice and broken pack ice. As the tests were done in spring, the first year ice was in the process of melting and was not as hard as might be expected in mid winter. Additional tests were done in heavy broken pack and rubble that was partly...

.... The instruments were deployed in part to support measurements of ice forces on bridge piers being collected by the National Research Council. Current and wind forcing move the mobile pack ice at the bridge. Tidal currents moved the ice back and forth past the bridge piers while a mean ice drift of 10–15cm/s...

... ABSTRACT Wind profiles collected by satellite-tracked ice beacons deployed on smooth and rough pack ice of the Gulf of St. Lawrence (Canada) are used to study variation in air-ice drag coefficient due to ice surface roughness. Data to investigate the other potential influence of atmospheric...

... production system to operate in an iceberg region, a major focus of the model test program was to study the interaction of pack ice and icebergs with the FPSO system. Introduction The Terra Nova FPSO will be located in approximately 95 meters water depth on the Grand Banks off the East Coast...

... Ice growth and melt play a major role in the length of time the yearly offshore pack ice impact on shipping, fishing and offshore petroleum development. This paper describes an automated acoustic system that will monitor the growth and melt of ice and transmit its data via satellite. System...

... dimensional dynamic interaction between a moving pack ice and a stationary structure. The discrete element procedure accounts for the generation of fragmentation within the initially intact ice floes. The problems examined take into consideration brittle fragmentation in tension and viscoplastic flow...

... environmental driving forces and the capability" of the pack ice to transmit them (typically termed the limitforce), the momentum of the ice, and the force necessary, to split floes contacting the structure. This paper summarizes analyses made by Comfort, Dinovitzer. and Gong. 1994: and Comfort and Singh, 1996...

... ABSTRACT A thermodynamic formulation for pack ice is presented that includes a means of relating stresses in floes to thermally-induced strain rates. The formulation combines some basic thermodynamics as well as a mechanics component which includes viscous creep and mechanically induced strain...

... ABSTRACT A recently proposed Distributed Mass / Discrete Floe model is a new model for practical computations of mesoscale pack ice rheology. The floes are divided into bunches, in which they are assumed to be distributed uniformly. As a result, larger number of floes can be treated...

... ice zone, a region of moving, disconnected ice floes is found, caused by wave action or large-scale pack ice movements. This "shear zone" is the scene of extensive ice action and ridge formation. These ridges may scour the seabed and may become fast through grounding, thus stabilis- ing the pack ice...