A5030289986- Arctic and Antarctic ice dynamics
- Cryospheric studies and observations
- Climate change and permafrost
- Landslides and related hazards
- Methane Hydrates and Related Phenomena
- Offshore Engineering and Technologies
- Traffic and Road Safety
- Winter Sports Injuries and Performance
- Oceanographic and Atmospheric Processes
- Smart Materials for Construction
- Transportation Safety and Impact Analysis
- Icing and De-icing Technologies
- Safety Warnings and Signage
- Data-Driven Disease Surveillance
- Ocean Acidification Effects and Responses
- Advanced Statistical Methods and Models
- Geology and Paleoclimatology Research
- Data Quality and Management
- Engineering and Information Technology
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Autonomous Vehicle Technology and Safety
- Hydrology and Drought Analysis
- Ultrasonics and Acoustic Wave Propagation
- Arctic and Russian Policy Studies
Centre For Cold Ocean Resources Engineering
2016-2023
California Department of Transportation
2012-2021
Arctic Research Centre
2016
Center for Asbestos Related Disease
2015
Newfoundland and Labrador Centre for Applied Health Research
2015
Canatec (Canada)
2012-2014
University of Chicago
2010
Abstract Variability in sea ice conditions, combined with strong couplings to the atmosphere and ocean, lead a broad range of complex dynamics. More in-situ measurements are needed better identify phenomena mechanisms that govern growth, drift, breakup. To this end, we have gathered dataset observations drift waves ice. A total 15 deployments were performed over period 5 years both Arctic Antarctic, involving 72 instruments. These provide GPS tracks, The data can, turn, be used for tuning...
Icy pavements can impair the ability of drivers to operate their vehicles safely. The California Department Transportation has deployed an icy curve warning system (ICWS) on a five‐mile segment SR 36 in Lassen County. This section roadway history as high‐crash location with fatal crashes, vast majority which occurred during pavement. objective this study was evaluate operational effects ICWS, specifically speeds various conditions. results statistical analysis found that mean were...
The California Department of Transportation (Caltrans) deployed an icy-curve warning system (ICWS) on a 5-mi section SR-36 in Lassen County, California, over Fredonyer Pass. This roadway had history as high-crash location, with multiple fatal crashes. vast majority these accidents occurred when the pavement was icy, despite static signage that Caltrans installed to increase motorist awareness. study presents results research investigated safety effects ICWS. An observational before–after...
Abstract Understanding the relative influences of metocean forcings on drift sea ice floes is a crucial component to overall characterization an environment and developing understanding factors controlling dynamics. In addition, estimating magnitude internal stress gradients drifting generated by surrounding cover important for modeling operations, informing design offshore structures vessels in environments, proper calibration Discrete Element Models (DEM) fields floes. spring 2015 2016,...
Ice flexural strength is an important parameter in the assessment of ice loads on hulls ice-class ships, sloped offshore structures, and bridge piers. While scale effects compressive are well known, there has been debate as to extent strength. To investigate during failure both freshwater saline ice, a comprehensive up-to-date database beam measurements compiled. The includes 2073 tests with volumes between 0.00016 2.197 m3, 2843 sea 0.00048 59.87 m3. data show considerable decrease specimen...
Abstract On 29 April 2015, four beacons were deployed onto an ice island in the Strait of Belle Isle to record positional data. The later broke up into many fragments, which tracked by beacons. relative influences wind drag, current Coriolis force, sea surface height gradient and sea-ice force on drift fragments analyzed. Using atmospheric oceanic model outputs, was calculated as residual fragments' net forces sum all other forces. This compared against obtained through...
Abstract While ocean current and winds certainly play a major role in guiding the trajectories of free-floating icebergs, direct effect atmospheric surface pressure gradients can also have an important influence on large icebergs whose horizontal dimensions are sufficiently great to span synoptic systems. This is examined as way understanding why B15A, B15J, B15K, C16 became “trapped” limited region immediately north Ross Island for period several years, without being grounded. otherwise...
Abstract During July 2018, an expedition was carried out offshore northern Newfoundland to central Labrador profile, track, and forecast the drift of icebergs. One goals modelling work test potential improvements in iceberg accuracy up 24 hours when measured profiles are used as opposed estimated draft mass. expedition, 14 icebergs were profiled using a rapid profiling system which uses multibeam for underwater portion LiDAR freeboard. The tracked on vessel marine radar, their physical model...
Abstract. An offshore operations thermodynamic-dynamic prediction model of sea ice break-up and drift is presented for central coastal Labrador in Atlantic Canada, demonstrated portions the 2015 spring land-fast ice. The validation performed using data from tracking buoys deployed on ice, which began drifting after uses a one-dimensional thermodynamic parameterization melt growth, includes snow accumulation melt, melt-pond lead growth contraction. dynamic Smoothed Particle Hydrodynamics...
Ice flexural strength is an important parameter in the assessment of ice loads on hulls ice-class ships, sloped offshore structures or bridge piers. While scale effects are well known for compressive strength, there has been debate as to whether not exist. To investigate during failure freshwater ice, a comprehensive up-to-date database beam measurements compiled. The data show considerable decrease specimen size increases, when examined over large range scales. An empirical model function...
Abstract As part of the SIIBED program, a subsea risk model for Grand Banks was updated to reflect observed changes in iceberg regime on since 1980s. This is used calculate interaction rates between free-floating and scouring icebergs infrastructure. The are described, along with updates previously calculated proposed facility. A methodology integrating output from other tasks into analysis outlined. Components source-to-sink understanding past regime, as well future anticipated changes, discussed.
The temperature of sea ice and snow cover on the surface is a critical component thermodynamic models ice. Ice also an important factor in strength therefore potential loads can exert ships, ports, bridges, offshore structures. layer, while remaining distinct from its physical properties, become compacted contribute to effective thickness strength. governed by atmospheric energy flux balance at ocean base. In addition, acts as insulator ice, buffering it against changes due meteorological...
Abstract The move to reduce greenhouse gas emissions in the offshore hydrocarbons production industry has resulted a growing interest possibility of using wind on-platform power generation. While some areas are progressing towards or planning for use electrify hydrocarbon producing platforms, they do not have challenges associated with Newfoundland & Labrador's environment.This region is prone incursions by icebergs and pack ice, which would present risk turbines. Analysis approachesto...
Abstract This paper is focused on new field data collected for drift behaviour of first-year sea ice, a multi-year ice floe and two icebergs offshore Newfoundland Labrador. Offshore operations in environments require detailed knowledge conditions. Moreover, reliable forecasts extreme features such as thick (MY) are essential supporting management activities effective operational decision-making. Central to the development improved forecasting models collection that can be used improve...
Shipping operations along the coasts of Newfoundland and Labrador associated with Grand Banks oil gas production, as well mining in Labrador, may be exposed to potentially hazardous ice conditions. Possible future development reserves offshore will also risk iceberg pack Improved understanding characteristics dynamics metocean forcing mechanisms behind them lead more efficient operational planning safer operations. Accordingly, CARD has initiated a long-term project collect analyze data on...
Pack ice pressure events and heavily deformed shear zone land-fast conditions can cause serious disruption to vessel navigation through ice-infested waters, resulting in operational delays increased costs due downtime. Understanding the causes behind ice-related is critical efforts build predictive models for such events. These will help offshore operators prepare avoid events, thus decreasing downtime, lowering costs, improving safety. This paper examines a three-day period during which...
Abstract The eastern Canadian Arctic is an ice-prone environment that a vital part of shipping lanes. A better understanding the ice and characteristics in this region essential for supporting safe economical marine activities. This study presents first analysis drift islands originated from Petermann Glacier calving events northwest Greenland between 2008 2012. These massive generated numerous smaller icebergs through subsequent deterioration break-up events. Surviving features drifted...