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Predicting the consequences of nutrient reduction on the eutrophication status of the North Sea ArchiMer
Lenhart, Hermann-j.; Mills, David K.; Baretta-bekker, Hanneke; Van Leeuwen, Sonja M.; Van Der Molen, Johan; Baretta, Job W.; Blaas, Meinte; Desmit, Xavier; Kuehn, Wilfried; Lacroix, Genevieve; Los, Hans J.; Menesguen, Alain; Neves, Ramiro; Proctor, Roger; Ruardij, Piet; Skogen, Morten D.; Vanhoutte Brunier, Alice; Villars, Monique T.; Wakelin, Sarah L..
In this paper the results from a workshop of the OSPAR Intersessional Correspondence Group on Eutrophication Modelling (ICG-EMO) held in Lowestoft in 2007 are presented. The aim of the workshop was to compare the results of a number of North Sea ecosystem models under different reduction scenarios. In order to achieve comparability of model results the participants were requested to use a minimum spin-up time, common boundary conditions which were derived from a wider-domain model, and a set of common forcing data, with special emphasis on a complete coverage of river nutrient loads. Based on the OSPAR requirements river loads were derived, taking into account the reductions already achieved between 1985 and 2002 for each country. First, for the year 2002,...
Tipo: Text Palavras-chave: Eutrophication; Ecosystem modeling; OSPAR Comprehensive Procedure; Eutrophication assessment; North Sea; River nutrient loads; Reduction scenarios.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00003/11391/8054.pdf
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Variation that can be expected when using particle tracking models in connectivity studies ArchiMer
Hufnagl, Marc; Payne, Mark; Lacroix, Genevieve; Bolle, Loes J.; Daewele, Ute; Dickey-collas, Mark; Gerkema, Theo; Huret, Martin; Janssen, Frank; Kreus, Markus; Paetsch, Johannes; Pohlmann, Thomas; Ruardij, Piet; Schrum, Corinna; Skogen, Morten D.; Tiessen, Meinard C. H.; Petitgas, Pierre; Van Beek, Jan K. L.; Van Der Veer, Henk W.; Callies, Ulrich.
Hydrodynamic Ocean Circulation Models and Lagrangian particle tracking models are valuable tools e.g. in coastal ecology to identify the connectivity between offshore spawning and coastal nursery areas of commercially important fish, for risk assessment and more for defining or evaluating marine protected areas. Most studies are based on only one model and do not provide levels of uncertainty. Here this uncertainty was addressed by applying a suite of 11 North Sea models to test what variability can be expected concerning connectivity. Different notional test cases were calculated related to three important and well-studied North Sea fish species: herring (Clupea harengus), and the flatfishes sole (Solea solea) and plaice (Pleuronectes platessa). For sole...
Tipo: Text Palavras-chave: Ocean circulation; Lagrangian approach; Variability; Marine protected areas; Renewable energy; Wind park; Model intercomparison; Ensemble.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00385/49660/50198.pdf
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