Numerical simulations of the spread of floating passive tracer released at the Old Harry prospect

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Video in TIB AV-Portal: Numerical simulations of the spread of floating passive tracer released at the Old Harry prospect

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Numerical simulations of the spread of floating passive tracer released at the Old Harry prospect
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CC Attribution 3.0 Unported:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
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2014
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English

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Abstract
The Gulf of St Lawrence is under immediate pressure for oil and gas exploration, particularly at the Old Harry prospect. A synthesis of the regulatory process that has taken place over the last few years indicates that important societal decisions soon to be made by various ministries and environmental groups are going to be based on numerous disagreements between the private sector and government agencies. The review also shows that the regulatory process has taken place with a complete lack of independent oceanographic research. Yet, the Gulf of St Lawrence is a complex environment that has never been specifically studied for oil and gas exploitation. Motivated by this knowledge gap, preliminary numerical experiments are carried out where the spreading of a passive floating tracer released at Old Harry is examined. Results indicate that the tracer released at Old Harry may follow preferentially two main paths. The first path is northward along the French Shore of Newfoundland, and the second path is along the main axis of the Laurentian Channel. The most probable coastlines to be touched by water flowing through Old Harry are Cape Breton and the southern portion of the French Shore, especially Cape Anguille and the Port au Port Peninsula. The Magdalen Islands are less susceptible to being affected than those regions but the probability is not negligible. These preliminary results provide guidance for future more in-depth and complete multidisciplinary studies from which informed decision-making scenarios could eventually be made regarding the exploration and development of oil and gas at the Old Harry prospect in particular and, more generally, in the Gulf of St Lawrence.
Video Electric power distribution Cardinal direction Water vapor Hitzeschild Climate Mixing (process engineering)
Impact event Prozessleittechnik Channeling Unterseeboot Winter Drill Season Summer (George Winston album) Global warming December Mixing (process engineering) Group delay and phase delay Finger protocol Dashboard Ammeter Temperature Combination gun Saint-Laurent Charmey Antenna diversity Fossil fuel
Überschallstaustrahltriebwerk François, Jean
Prozessleittechnik
Fossil fuel
Impact event Prozessleittechnik Series and parallel circuits Flight simulator Chemical substance Radioactive decay
Patch antenna Calendar date Day Year Observatory Global warming Map Dyeing Domäne <Kristallographie> Pattern (sewing) Theodolite Video Flight simulator Water vapor Model building
Sound Ford Explorer Video Mass Fossil fuel Angeregter Zustand
the Gulf of St. Lawrence's is a semi-enclosed sea located in eastern Canada it is about 3 times smaller than the north sea in 7 times smaller than the Gulf of Mexico the Gulf receives a very large amount of fresh water from the great lakes drainage basin in the canadian shield its deep water is composed of an approximately equal mix of Arctic and tropical waters a climate of the subarctic
see exhibits very large seasonal temperature changes with frigid winters that produce extensive sea ice and warm summers that favor large phytoplankton blooms the singular coastal environment supports a unique and diverse mix of stream marine species characteristics of both tropical and arctic conditions the Gulf of Saint Laurent's potentially holds large amounts of oil and gas the most promising prospect as old hairy located at a depth of about 460 meters and luncheon channel and at less than 100 kilometers from the surrounding coastlines the oil company Korda resources holds the rights to this prospect and plans to undertake exploratory drilling by the end of 2014 according to the Environmental Assessment tabled by court or the risks associated with the exploratory drilling a minimal Corder argues that under conceivable worst-case scenarios of surface village the affected area would be limited to 20 by 40 kilometers beyond which will be sufficiently diluted evaporated and no longer have any noticeable impact on the ecosystem surrounding closed however this study has been severely
criticized during the revision process by various governmental instances environmental groups
concerns were raised regarding the underlying
assumptions made in the credibility of the Oil Spill Risk Assessment presented despite these
criticisms quarter maintained that this well can be safely drilled that we noted that
this regulatory process has taken place without independent motion graphic research
yet the Gulf of Saint Lions has never been specifically studied for oil and gas exploitation assessing the environmental
impact of oil spills in the Gulf of St. Lions is
an outstanding problem because it involves a series of physical and major chemical processes that are not fundamentally well understood here we approach the problem from much simpler perspective rather than attempting to realistically simulate oil dispersion processes in all their complexity the strategy adopted is to examine only the horizontal spreading a passive floating tracer released at all here this means that there is no possible decay from the interaction with biological chemical and physical processes in other words this is equivalent to examining how a floating food color would spread if released at the old Harry site this is a step we feel necessary to accomplish before proceeding with more complex phytochemical simulations of oil and contaminant dispersion
we have carried out a number of simulations for year 2012 using hourly modeled surface currents produced by Fisheries and Oceans Canada and available from the same lines global Observatory portal or the following
animations show a few examples of what the spreading patterns may look like 3 dire releasing areas were performed in the 1st scenario green dies released for only 1 day in the 2nd scenario yellow dyes released for 10 days finally in the 3rd scenario red dyes released for 100 days in each of these scenarios the evolution of the patch of diet is monitored for 30 days after the end of the release statistical maps such as this 1 a provided that synthesize the main results for example this map indicates how many days it would typically take for water transiting over hairy to reach surrounding areas and coastlines these results although preliminary provide guidance for future
more in-depth studies from which informed decision-making scenarios could be made regarding oil and gas exploration in the Gulf state line
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