Economic Evaluation of Subsea Development Options for the Future of the North Sea

1991 ◽  
Author(s):  
G.P. Jenner ◽  
J.A. Tweedie ◽  
J.T. Ford
2013 ◽  
Vol 10 (5) ◽  
pp. 1525-1557
Author(s):  
K. O'Driscoll ◽  
B. Mayer ◽  
J. Su ◽  
M. Mathis

Abstract. The fate and cycling of two selected legacy persistent organic pollutants (POPs), PCB 153 and γ-HCH, in the North Sea in the 21st century have been modelled with combined hydrodynamic and fate and transport ocean models. To investigate the impact of climate variability on POPs in the North Sea in the 21st century, future scenario model runs for three 10 yr periods to the year 2100 using plausible levels of both in situ concentrations and atmospheric, river and open boundary inputs are performed. Since estimates of future concentration levels of POPs in the atmosphere, oceans and rivers are not available, our approach was to reutilise 2005 values in the atmosphere, rivers and at the open ocean boundaries for every year of the simulations. In this way, we attribute differences between the three 10 yr simulations to climate change only. For the HAMSOM and atmospheric forcing, results of the IPCC A1B (SRES) 21st century scenario are utilised, where surface forcing is provided by the REMO downscaling of the ECHAM5 global atmospheric model, and open boundary conditions are provided by the MPIOM global ocean model. Dry gas deposition and volatilisation of γ-HCH increase in the future relative to the present. In the water column, total mass of γ-HCH and PCB 153 remain fairly steady in all three runs. In sediment, γ-HCH increases in the future runs, relative to the present, while PCB 153 in sediment decreases exponentially in all three runs, but even faster in the future, both of which are the result of climate change. Annual net sinks exceed sources at the ends of all periods.


1998 ◽  
Author(s):  
S. DeFranco ◽  
J. Gebara ◽  
P. O'Connor ◽  
W. Hamilton ◽  
F. Puskar ◽  
...  

2020 ◽  
Author(s):  
Jens Möller ◽  
Ina Teutsch ◽  
Ralf Weisse

<p>Rogue waves are a potential threat for both shipping and offshore structures like wind power stations or oil platforms. While individual Rogue waves are short-lived and almost unpredictable, there is a chance to predict the probability of the occurrence of freak waves in conjunction with different weather types. The German Ministry of Transport and digital Infrastructure has tasked its Network of Experts to investigate the possible evolutions of extreme threats for shipping and offshore wind energy plants in the German Bight, the south-eastern part of the North Sea near the German coast.</p><p>In this study, we present an analysis from the co-occurrence of freak waves with different weather types in the German Bight in the past (from observations). In addition, we investigate potential changes of the occurrence of freak waves in the future due to a changing climate and changing appearance of the relevant weather types (by use of a coupled Regional Ocean-Atmosphere Climate Model, MPI-OM).</p><p>The investigation indicates a connection between the probability of the occurrence of freak waves at different stations and certain weather types. Potentially, this relationship could be used for warning crews of ships or offshore constructions. In a coupled Regional Ocean-Atmosphere Climate Model (MPI-OM) under scenario RCP8.5 we detect an increase of just such weather types, which are correlated with high waves, for the future.</p>


Ocean Science ◽  
2014 ◽  
Vol 10 (3) ◽  
pp. 397-409 ◽  
Author(s):  
K. O'Driscoll ◽  
B. Mayer ◽  
J. Su ◽  
M. Mathis

Abstract. The fate and cycling of two selected legacy persistent organic pollutants (POPs), PCB 153 and γ-HCH, in the North Sea in the 21st century have been modelled with combined hydrodynamic and fate and transport ocean models (HAMSOM and FANTOM, respectively). To investigate the impact of climate variability on POPs in the North Sea in the 21st century, future scenario model runs for three 10-year periods to the year 2100 using plausible levels of both in situ concentrations and atmospheric, river and open boundary inputs are performed. This slice mode under a moderate scenario (A1B) is sufficient to provide a basis for further analysis. For the HAMSOM and atmospheric forcing, results of the IPCC A1B (SRES) 21st century scenario are utilized, where surface forcing is provided by the REMO downscaling of the ECHAM5 global atmospheric model, and open boundary conditions are provided by the MPIOM global ocean model. Dry gas deposition and volatilization of γ-HCH increase in the future relative to the present by up to 20% (in the spring and summer months for deposition and in summer for volatilization). In the water column, total mass of γ-HCH and PCB 153 remain fairly steady in all three runs. In sediment, γ-HCH increases in the future runs, relative to the present, while PCB 153 in sediment decreases exponentially in all three runs, but even faster in the future, due to the increased number of storms, increased duration of gale wind conditions and increased water and air temperatures, all of which are the result of climate change. Annual net sinks exceed sources at the ends of all periods. Overall, the model results indicate that the climate change scenarios considered here generally have a negligible influence on the simulated fate and transport of the two POPs in the North Sea, although the increased number and magnitude of storms in the 21st century will result in POP resuspension and ensuing revolatilization events. Trends in emissions from primary and secondary sources will remain the key driver of levels of these contaminants over time.


1991 ◽  
Vol 43 (12) ◽  
pp. 1484-1489 ◽  
Author(s):  
G.P. Jenner ◽  
J.T. Ford ◽  
J.A. Tweedle

It is more than ten years since the Royal Society last hosted a discussion to focus on the Shelf Seas. The intervening period has been a time of both exciting scientific developments and an emerging awareness of the practical and economic importance of our shallow coastal seas. Concern about the welfare of the environment in these waters, on which we place an increasingly heavy burden, has added to the intellectual challenge of understanding the processes that control that environment and lent impetus to the development of improved models of the shelf sea system which will be needed for informed management in the future as pressures from our agriculture and industry increase.


Author(s):  
Catherine Ann Somerville Venart ◽  

The North Sea: Transitional Landscapes of Coexistence’ was a joint interdisciplinary graduate design studio (Dalhousie + TUDelft), that focused on the future of urbanization in the transitional territory of the Rhine–Meuse–Scheldt Delta adjacent to the North Sea. In this studio students were encouraged to redefine the role of the territory linking architecture and infrastructure through concepts for ‘the commons’ or the collective. They developed visions for new ‘urban’ linkages and adapted existing infrastructures that are critical to securing urbanity in this low-lying Delta landscape, where the expected consequences of change, such as the extremes of climate, altered natures, shifting land/water borders, automation, immigration and clean energies are predicted to morphologically transform the megalopolis of tomorrow.


Humanities ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 78
Author(s):  
Per Thomas Andersen

The article is a literary analysis of the poem “Solaris Corrected” by the Norwegian poet Øyvind Rimbereid. The work is a poetical science fiction where the oil industry in the North Sea is seen from a retrospective point of view, conveyed in a future language. As a part of the modernist tradition in Scandinavian literature, Rimbereid’s work can be read as a significant renewal of the poetic heritage from among others Rolf Jacobsen and Harry Martinson.


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