... Supply vessels for the Grand Banks oil and gas industry have faced 25 ice blockage events entering St. John’s Harbour, Newfoundland from 1979-2005. We propose an empirical approach to forecasting the occurrence of 8-10/10ths total ice concentration at the harbour, and tables for alerting...

... transportation ship concentration thickness icetech12-130-rf kubat page number ice condition incident critical value ridge thickness convergence ice pressure ccg amundsen anticosti island ice thickness march 2005 coastline alida gorthon ice cover strain rate Quantifying Ice Pressure...

... analytical, numerical and scale model tests. The work is part of a large research project at Memorial University called STePS2 (Sustainable Technology for Polar Ships and Structures). marine transportation labrador concentration resistance estimate simulation floe ice force sequence pack ice...

... The sea ice concentrations and areal extent in Baffin Bay have undergone major reductions over the past 31 years (1981-2011). Of particular interest is the Northeastern Baffin Bay area off West Greenland, which is a promising frontier area for oil and gas exploration. The break-up dates, along...

... icebreaking requirements and IM efficiency. reservoir simulation upstream oil & gas force corresponding concentration thickness floe effectiveness ice force im operation pressure distribution ice pressure operation im system icetech12-106-rf vachon page number floe size ice thickness...

... with a prediction of mooring loads, based on the force for a given deflection. The results of the simulations show the same trends as the experiments. subsea system mooring system upstream oil & gas pre-sawn ice concentration simulation ice load drift speed page number hull experiment model...

... ships, such as two bulk carriers, an LNG carrier and a crude oil tanker, are selected for Northern Sea Route transit simulation. Ice and environmental information such as sea ice thickness and concentration, wind direction and wave height are gathered and their probabilistic distribution are used...

... characterization marine transportation ice type ship concentration nwp heavy lift vessel ice condition multiyear ice module northwest passage ice numeral transit icebreaker shipping safety control zone herschel island deadweight capacity arrival date The Transportation of Large Modules through...

... concentration mixtures of the deformed, thick first-year and multiyear ice. The period for ship transits through the Passage is determined from the computer-based analysis of digital Canadian Ice Service weekly ice charts which are available from the late 1960s to the present. Automated computer-based...

... to new areas that traditionally have been ice free. This also relate to the ice of the polar pack that might move more than in the past. There is therefore a strong encouragement to implement the learning of the Arctic pioneers. upstream oil & gas concentration icetech10-153-rf alme page...

... reasonable trends of ice forces and moment acting on the structures and the predicted ice flow patterns around the structure are realistic. strategic planning and management subsea system drilling equipment upstream oil & gas concentration simulation discrete element ice force page number...

... Guard vessel, CCGS Louis S. St- Laurent, is used in the tests. The results give the evolution of the distributions of ice concentration, thickness and pressures. The ice force-time records are also produced. The predicted forces are compared to recently reported field measurements of ice forces...

... for predicting the ice force have been employed for the head-on ice-ship interaction scenario with low ice concentration. One model is that the ice load is estimated as the average rate of momentum transfer between ice floes and ship hull. Another model is that the ice load is estimated based on the calculation...

..., it is shown that effective use of ice management can drastically reduce the ice induced mooring loads. subsea system fpso floating production storage & offloading upstream oil & gas floating production system floating production storage and offloading alert procedure concentration oil...

... are presented and comparisons made to the 1994 LSSL voyage and several other ships. area 0 concentration thickness measurement area programme ice condition lssl ice pressure maximum bow single cell pressure mpa strain gage ice thickness gulf single cell pressure return period voyage...

... In the early spring of 2006, a research team, lead by BMT Fleet Technology, undertook a set of performance trials of a TEMPSC in ice covered water. The trials were performed in the bays of New World Island, Newfoundland and Labrador. The TEMPSC was operated in ice conditions of concentrations up...

... concentration research council simulation resistance floe national research council icetech08-158-r0 lau page number proceedings ridge keel implementation pack ice algorithm maneuvering decice interaction Discrete Element Analysis of Ice Loads on Ships and Structures Michael Lau Institute...

... by experimentally investigating the hull’s ice transiting resistance and its motions, and to validate a numerical model of lifeboat sail away. This paper reports on the physical model experiments and their comparison with numerical modeling. model test concentration thickness 10th concentration simulation...

... was different for the three hull forms, performance in ice was broadly similar. Ice concentrations of about 6/10ths to 7/10ths were found to be limiting conditions for all three. Larger floes were found to hinder performance more than smaller floes. Increasing power did not significantly improve performance...

... hull form and propulsion system combination are discussed and the most appropriate voyage profile for each design is presented. freight & logistics services marine transportation ship concentration knot resistance hull ice condition experiment tanker torque operation pack ice...