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Ongoing Development of Regional Ice Prediction System (RIPS) 区域冰量预报系统(RIPS)的持续发展
Day 4 Thu, September 20, 2012 Pub Date : 2012-09-17 DOI: 10.5957/icetech-2012-163
L. Pogson, T. Carrieres, M. Buehner, A. Caya, P. Pestieau, Yi Luo, Andrea Scott, Michael Ross
{"title":"Ongoing Development of Regional Ice Prediction System (RIPS)","authors":"L. Pogson, T. Carrieres, M. Buehner, A. Caya, P. Pestieau, Yi Luo, Andrea Scott, Michael Ross","doi":"10.5957/icetech-2012-163","DOIUrl":"https://doi.org/10.5957/icetech-2012-163","url":null,"abstract":"Version 1 of the Regional Ice Prediction System was implemented this past year at Environment Canada. Data assimilation techniques integrate a variety of observations into one automated product, using Canadian Ice Service charts and lake ice analyses, and ice concentration retrieved from SSM/I and AMSR satellite data. This system shows an improvement over the current Canadian Meteorological Centre (CMC) operational sea ice analysis, and development is underway on future versions.","PeriodicalId":177475,"journal":{"name":"Day 4 Thu, September 20, 2012","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123436920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modelling Risks to Offshore Facilities Associated with Ice Islands off Canada’s East Coast 与加拿大东海岸冰岛相关的海上设施风险建模
Day 4 Thu, September 20, 2012 Pub Date : 2012-09-17 DOI: 10.5957/icetech-2012-137
Mark Fuglem, M. Richard, A. Kennedy, T. King, Neil Cater
{"title":"Modelling Risks to Offshore Facilities Associated with Ice Islands off Canada’s East Coast","authors":"Mark Fuglem, M. Richard, A. Kennedy, T. King, Neil Cater","doi":"10.5957/icetech-2012-137","DOIUrl":"https://doi.org/10.5957/icetech-2012-137","url":null,"abstract":"Two models are being developed to assist operators quantify risks to facilities off the east coast of Canada, given initial locations and characteristics of an ice island or set of ice island fragments. The first is an ensemble model in which a specified number of possible trajectories and fates will be simulated and plotted. Different realizations will be simulated by varying the environmental hindcast data and random parameters used. The second is a finite-element advection-diffusion model that determines maps of the probability of occurrence of an ice island fragment at different locations. This paper discusses the overall approach and progress to date.","PeriodicalId":177475,"journal":{"name":"Day 4 Thu, September 20, 2012","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126802508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Disruption Risk Management in Arctic Offshore Support Operations 北极海上支持作业的中断风险管理
Day 4 Thu, September 20, 2012 Pub Date : 2012-09-17 DOI: 10.5957/icetech-2012-127
B. Batalden
{"title":"Disruption Risk Management in Arctic Offshore Support Operations","authors":"B. Batalden","doi":"10.5957/icetech-2012-127","DOIUrl":"https://doi.org/10.5957/icetech-2012-127","url":null,"abstract":"This paper presents some findings of disruption risk management applied in Arctic offshore support operations. Some elements of disruption risk management are used during Arctic operations. Still the industry may have more to gain in applying and focusing on the principles of risk management in supply chain management in Arctic operations.","PeriodicalId":177475,"journal":{"name":"Day 4 Thu, September 20, 2012","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134113903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Modeling and Optimization of Docking Stations and AUVs for Ice Floe Measurement 浮冰测量对接站和auv的建模与优化
Day 4 Thu, September 20, 2012 Pub Date : 2012-09-17 DOI: 10.5957/icetech-2012-108
Fang Lu, Zhichao Shu, J. Hasenbein, D. Morton, D. Berta, Khalid Sooft
{"title":"Modeling and Optimization of Docking Stations and AUVs for Ice Floe Measurement","authors":"Fang Lu, Zhichao Shu, J. Hasenbein, D. Morton, D. Berta, Khalid Sooft","doi":"10.5957/icetech-2012-108","DOIUrl":"https://doi.org/10.5957/icetech-2012-108","url":null,"abstract":"We consider an Arctic drilling platform, which must withstand seasonal ice floes and be protected against extreme ice features. Adequate ice floe thickness estimates are not discernible from satellite images, so autonomous underwater vehicles (AUVs) equipped with sonar scan the thickness of the floes. We approximate this system by an M/G/k+G queue and develop a high fidelity simulation model. We develop and solve a stochastic facility location model, which addresses the design and operational decisions related to the system. Finally, we create a visualization tool to graphically represent the docking station configurations, ice floe arrivals, and the AUV scanning process. These simulations were part of a desktop study and have not been validated through field trials, which we hope to accomplish in the next phase of this study.","PeriodicalId":177475,"journal":{"name":"Day 4 Thu, September 20, 2012","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114246234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Using Ice to Build Shell Structures 用冰建造壳结构
Day 4 Thu, September 20, 2012 Pub Date : 2012-09-17 DOI: 10.5957/icetech-2012-173
B. Kromoser, J. Kollegger
{"title":"Using Ice to Build Shell Structures","authors":"B. Kromoser, J. Kollegger","doi":"10.5957/icetech-2012-173","DOIUrl":"https://doi.org/10.5957/icetech-2012-173","url":null,"abstract":"Over the last few years different methods for building shells by using a combination of pneumatic formwork and post-tensioning technologies have been investigated at Vienna University of Technology. The idea behind all these construction methods is to build ice shells with double curvature originating from an initial plane plate. The various construction methods will be presented and the experiments on spherical shells with base diameters of approximately 10m will be described.","PeriodicalId":177475,"journal":{"name":"Day 4 Thu, September 20, 2012","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128680415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Arctic Offshore Structure EER Risk Based Standards and Methods of Risk Analysis 北极近海结构物EER风险分析标准与方法
Day 4 Thu, September 20, 2012 Pub Date : 2012-09-17 DOI: 10.5957/icetech-2012-144
James P. Poplin, F. Bercha
{"title":"Arctic Offshore Structure EER Risk Based Standards and Methods of Risk Analysis","authors":"James P. Poplin, F. Bercha","doi":"10.5957/icetech-2012-144","DOIUrl":"https://doi.org/10.5957/icetech-2012-144","url":null,"abstract":"The Canadian Offshore Structure Performance Based EER Standards 2006 and International Standard ISO 19906 Arctic Offshore Structures 2010 were developed to help ensure that offshore structures deployed where arctic conditions prevail, provide the appropriate level of reliability with respect to personnel safety, environmental protection and asset value. Both standards address escape, evacuation and rescue (EER). The Canadian standard provides reliability targets for key elements and the totality of the EER process whereas the ISO standard addresses design, construction, transportation, installation and decommissioning phases of the structure. EER is a system that mitigates the effects of major accident hazards to personnel. A suite of risk analyses methodologies are typically employed to assess the EER philosophy and to confirm the provisions of the overall EER system design. The objectives of such analyses are to assess the design adequacy (from an EER perspective) at key stages in the design, to assess the impact of changes to the design that are proposed and to demonstrate that risks to personnel in the overall design are as low as reasonably practicable (ALARP). Following a general description of the Canadian and ISO standard’s EER risk and reliability based provisions, this paper provides an overview of some of the applicable risk methodologies including the EER analysis.","PeriodicalId":177475,"journal":{"name":"Day 4 Thu, September 20, 2012","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125869124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Beaufort Sea Ice Drift Forecasting On-Board the CCGS Amundsen CCGS阿蒙森号上的波弗特海冰漂移预报
Day 4 Thu, September 20, 2012 Pub Date : 2012-09-17 DOI: 10.5957/icetech-2012-111
I. Turnbull, R. Pilkington
{"title":"Beaufort Sea Ice Drift Forecasting On-Board the CCGS Amundsen","authors":"I. Turnbull, R. Pilkington","doi":"10.5957/icetech-2012-111","DOIUrl":"https://doi.org/10.5957/icetech-2012-111","url":null,"abstract":"In August 2011, five ice drift forecast models developed in-house were tested on-board the CCGS Amundsen in the southeastern Beaufort Sea west of Banks Island, Northwest Territories. A discussion of the model methodologies and the data inputs to the models are presented. Sample model drift plots from August 15-19, using one of the models, are presented, using both forecast and measured winds. Comparison of forecast versus measured winds for August 16-24 is given. Tables of model result errors compared with measured drift for August 16-24 are shown, using both measured and forecast winds.","PeriodicalId":177475,"journal":{"name":"Day 4 Thu, September 20, 2012","volume":"251 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124154047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Ice Loads on a Moored Floating Production Unit 系泊浮式生产装置的冰负荷
Day 4 Thu, September 20, 2012 Pub Date : 2012-09-17 DOI: 10.5957/icetech-2012-138
D. Molyneux, Lei Liu, D. Zhan, G. Reid
{"title":"Ice Loads on a Moored Floating Production Unit","authors":"D. Molyneux, Lei Liu, D. Zhan, G. Reid","doi":"10.5957/icetech-2012-138","DOIUrl":"https://doi.org/10.5957/icetech-2012-138","url":null,"abstract":"This paper presents the predictions of ice loads on a moored hull, based on model experiments and numerical simulations. Three levels of mooring stiffness were considered, which varied from an almost infinitely stiff system (used for ship resistance) to a mooring stiffness typical of those used in offshore installations. Ice conditions presented are for managed pack ice and large ice floes. The results show the effect of varying stiffness in the mooring system on the mean and peak loads. The numerical simulations were carried out using a discrete element code for ice interaction forces combined 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.","PeriodicalId":177475,"journal":{"name":"Day 4 Thu, September 20, 2012","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133318137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Detecting Icebergs in Sea Ice Using Dual Polarized Satellite Radar Imagery 利用双极化卫星雷达图像探测海冰中的冰山
Day 4 Thu, September 20, 2012 Pub Date : 2012-09-17 DOI: 10.5957/icetech-2012-171
C. Howell, P. Bobby, D. Power, C. Randell, Lance Parsons
{"title":"Detecting Icebergs in Sea Ice Using Dual Polarized Satellite Radar Imagery","authors":"C. Howell, P. Bobby, D. Power, C. Randell, Lance Parsons","doi":"10.5957/icetech-2012-171","DOIUrl":"https://doi.org/10.5957/icetech-2012-171","url":null,"abstract":"Two synthetic aperture radar (SAR) datasets with validated icebergs in sea ice were analyzed. A qualitative assessment of the data using false colour visualization methods for dual polarization SAR was conducted indicating that icebergs had an improved visually discernable signature from the background over single polarization SAR.A quantitative analysis was completed to exploit these observations. The algorithm development was focused on detection, false alarm removal and false alarm prioritization. The prototype software package developed around these algorithms presently supports RADARSAT-2 Wide and TerraSAR-X Stripmap imagery.","PeriodicalId":177475,"journal":{"name":"Day 4 Thu, September 20, 2012","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133714323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Ice Measurements in Cook Inlet, Alaska with an Acoustic Doppler Profiler 用声学多普勒分析器测量阿拉斯加库克湾的冰
Day 4 Thu, September 20, 2012 Pub Date : 2012-09-17 DOI: 10.5957/icetech-2012-158
Alexander V. Khokhlov, Nels J. Sultan, John W. Pickering, J. Wood
{"title":"Ice Measurements in Cook Inlet, Alaska with an Acoustic Doppler Profiler","authors":"Alexander V. Khokhlov, Nels J. Sultan, John W. Pickering, J. Wood","doi":"10.5957/icetech-2012-158","DOIUrl":"https://doi.org/10.5957/icetech-2012-158","url":null,"abstract":"Ice conditions were measured in Lower Cook Inlet, Alaska using Acoustic Doppler Profilers with an innovative data analysis method. PND Engineers, Inc., deployed three bottom-mounted upward-looking Nortek Acoustic Wave and Current (AWAC) profilers near Iniskin Bay. The instruments were configured to collect current profiles and wave data alternating with experimental “diagnostic” water-ice interface profiles. Analyzing these measurements together with the surface current velocity time series and assumed ice block shape allows estimation of the ice block size, mass, and velocity. Descriptions of the instrumentation and data processing are presented in this paper. This mission was the first application of this recently developed technique for ice measurements in Cook Inlet’s harsh environment.","PeriodicalId":177475,"journal":{"name":"Day 4 Thu, September 20, 2012","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132704508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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