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Keywords: sea ice
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Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, November 5–7, 2018
Paper Number: OTC-29162-MS
... methodology presented in this paper can be expanded to include more hazards as appropriate. Proposals are provided on future enhancements. low air temperature air temperature alaska polar code operation operational window ice chart sea ice ice accretion marine transportation us government...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, November 5–7, 2018
Paper Number: OTC-29167-MS
...OTC-29167-MS Probabilistic Approach to Determine Combined Sea Ice and Wave Actions Mark Fuglem, Jan Thijssen, and Paul Stuckey, C-CORE; Somchat Suwan and Qianran Zhang, Arup Copyright 2018, Offshore Technology Conference This paper was prepared for presentation at the Arctic Technology Conference...
Proceedings Papers

Paper presented at the Arctic Technology Conference, October 24–26, 2016
Paper Number: OTC-27335-MS
... Abstract This paper demonstrates the application of a 3-D random lattice model based on Voronoi tessellation. The model may be applicable in a wide range of sea ice modelling scenarios. Lattice models based on Voronoi tessellation give accurate results in fracture modelling of brittle...
Proceedings Papers

Paper presented at the Arctic Technology Conference, October 24–26, 2016
Paper Number: OTC-27444-MS
... operational risk for ice management operations. In addition, it can help map the areas of thin ice to aid shipping route selection. Despite its fundamental importance, sea ice thickness is one of the most difficult measurements to obtain via remote sensing. Passive remote sensing methods at the near infrared...
Proceedings Papers

Paper presented at the Arctic Technology Conference, October 24–26, 2016
Paper Number: OTC-27441-MS
... could be applied. infrastructure technology challenge operation physical environment norwegian sea ice load sea ice intsok requirement norwegian continental shelf contingency planning mooring system installation personnel barent sea field development technology conference...
Proceedings Papers

Paper presented at the Arctic Technology Conference, October 24–26, 2016
Paper Number: OTC-27443-MS
... Beaufort Sea, predictions are given for the length of the drilling seasons for 2016 and 2017. Since 2005, the below average monthly sea ice extent indicates the continued decline of the Arctic ice extent. The impact of an Open Arctic for the drilling season will be discussed. The drilling season will be...
Proceedings Papers

Paper presented at the Arctic Technology Conference, October 24–26, 2016
Paper Number: OTC-27468-MS
... developments and opportunities for enhancement of technology will be presented. application newfoundland and labrador drilling subsea system artificial intelligence upstream oil & gas sea ice resolution engineering detection iceberg ice management technology conference offshore...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, March 23–25, 2015
Paper Number: OTC-25557-MS
... Abstract Modem ULS instruments provide year-long continuous measurements of sea ice drafts with an unprecedented time resolution of 1-2 seconds and a horizontal resolution of approximately 1 m. In this paper we analyze multi-year moored ULS measurements of sea ice in the Chukchi and Beaufort...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, March 23–25, 2015
Paper Number: OTC-25511-MS
... Summary We have implemented a targeted ground-penetrating radar (GPR) full-waveform inversion algorithm to quantify the physical characteristics of oil spills under and within sea-ice. We can invert for oil thickness, electric permittivity, and conductivity or any subset of these parameters if...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, March 23–25, 2015
Paper Number: OTC-25479-MS
... Abstract Results are presented from a sea ice forecasting experiment combined with a field campaign undertaken in the Barents Sea in March 2014. The simulations were performed with the regional coupled atmosphere-sea ice-ocean model HAMMER, recently developed within the project IRO-2 dealing...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, March 23–25, 2015
Paper Number: OTC-25572-MS
... Abstract The seasonal cycle of sea ice thickness on the North East Greenland shelf as derived from 22 years of direct observations with upward looking sonars is quantified. The seasonal cycle of the mean and modal thickness is presented, both as absolute numbers and as anomalies from the annual...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, March 23–25, 2015
Paper Number: OTC-25522-MS
... Abstract In the nearshore zone of the Alaskan Beaufort Sea, three subsea pipeline bundles have been successfully installed by using conventional onshore construction equipment in the winter season operating from a thickened sea ice platform. Differences in water depth, route length and...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, March 23–25, 2015
Paper Number: OTC-25595-MS
... to shipping and ice management by enhancing numerical ice forecast modelling. Products comprise specific areal characterization, pressure along channels or routes and in the vicinity of critical areas. Predictability of compression in sea ice by numerical modelling encounters considerable challenges...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, February 10–12, 2014
Paper Number: OTC-24557-MS
... ice condition weather observation information fmi ice management operation ice cover sea ice us government arctic condition ice thickness upstream oil & gas ice drift met-ocean service otc 24557 radar radar data forecasting icebreaker offshore technology conference OTC...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, February 10–12, 2014
Paper Number: OTC-24554-MS
... sea ice monitoring versus single channel RADARSAT-1 data (MDA, 2013, DeAbreu et al., 2011; Partington et al., 2010; Flett et al., 2008; Flett and De Abreu, 2008). Analysis of ENVISAT and airborne SAR data also indicated the benefits of dual polarized data for sea ice monitoring (Arkett et al, 2006...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, February 10–12, 2014
Paper Number: OTC-24598-MS
... ice feature satellite imagery ice parameter offshore technology conference resolution concentration detection sar imagery ice concentration information identification iceberg sea ice technology conference imagery iceberg topography upstream oil & gas zakharov extreme ice...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, February 10–12, 2014
Paper Number: OTC-24600-MS
... analytical methods to characterize highly deformed sea ice features including large individual keels, segments of hummocky ice, multi-year ice, and episodes of internal ice stress, which can also serve as validation data for SAR-based analysis. This paper presents an overview of our ongoing work and very...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, February 10–12, 2014
Paper Number: OTC-24658-MS
... Abstract We present a methodology for tactical route optimization in waters covered by sea ice. The ice conditions are time-dependent and uncertain. This paper proposes a methodology for determining the fastest route through ice covered waters based on a stochastic dynamic programming model...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, February 10–12, 2014
Paper Number: OTC-24628-MS
... ice features (for example the number of icebergs per 10,000 km2), and the probability distributions of the size and mass of the features, their added mass, their velocity, eccentricity of the collision, compliance of the structure, and the strength of the ice. The influence of surrounding sea ice on...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, February 10–12, 2014
Paper Number: OTC-24638-MS
... Abstract Time series of sea ice thickness observed by moored sonars in the Transpolar Drift in Fram Strait show significant thinning during the 1990–2011 period. The thickness of old level ice is reduced by 25 %, while the fraction of (ridged) ice thicker than 5 m is reduced by 50 %. The...

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