Search Results - "Simonsen, Knud"

Analysis of the energy potential of tidal streams on the Faroe Shelf by Simonsen, Knud, Niclasen, Bárður A.

“…A first estimate of the energy potential in the tidal streams on the Faroe Shelf is derived from a barotropic numerical model with 100 m resolution. A total of…”
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Flow through fish farming sea cages: Comparing computational fluid dynamics simulations with scaled and full-scale experimental data by Winthereig-Rasmussen, Heini, Simonsen, Knud, Patursson, Øystein

“…Computational fluid dynamics (CFD) simulations were performed on the flow through and around full-scale sea cages. The Reynolds average Navier–Stokes equations…”
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Optimal salmon lice treatment threshold and tragedy of the commons in salmon farm networks by Kragesteen, Tróndur J., Simonsen, Knud, Visser, André W., Andersen, Ken H.

“…The ectoparasite Lepeophtheirus salmonis has for decades plagued salmon aquaculture by decreasing profits and impacting wild salmon stocks. To protect…”
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Limitations to growth: Social-ecological challenges to aquaculture development in five wealthy nations by Young, Nathan, Brattland, Camilla, Digiovanni, Celeste, Hersoug, Bjorn, Johnsen, Jahn Petter, Karlsen, Kine Mari, Kvalvik, Ingrid, Olofsson, Erik, Simonsen, Knud, Solås, Ann-Magnhild, Thorarensen, Helgi

“…Aquaculture is a major contributor to global food production, but has attracted considerable controversy. Disagreements over the social and ecological impacts…”
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Optimizing volume estimation in aquaculture sea cages: A comparative study of calculation methods and sensor placement by Abrahamsen, Heðin I., Johannesen, Tróndur T., Patursson, Øystein, Simonsen, Knud

“…Due to intensified environmental challenges and industry growth, salmon aquaculture is expanding into regions with stronger currents and higher waves. This can…”
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Development of a porous media model with application to flow through and around a net panel by Patursson, Øystein, Swift, M. Robinson, Tsukrov, Igor, Simonsen, Knud, Baldwin, Kenneth, Fredriksson, David W., Celikkol, Barbaros

“…The flow characteristics through and around a net panel have been investigated through computational fluid dynamics (CFD) and measurements. A finite volume…”
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Deposition and benthic mineralization of organic carbon: A seasonal study from Faroe Islands by á Norði, Gunnvør, Glud, Ronnie N., Simonsen, Knud, Gaard, Eilif

“…Seasonal variations in sedimentation and benthic mineralization of organic carbon (OC) were investigated in a Faroese fjord. Deposited particulate organic…”
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Visualisation of the wake behind fish farming sea cages by Rasmussen, Heini Winthereig, Patursson, Øystein, Simonsen, Knud

“…•Current measurements using boat-mounted ADCP.•Measured velocities are non-dimensionalised by a reference velocity.•Collected measurements are interpolated to…”
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A step towards high resolution modeling of the central Faroe shelf circulation by FarCoast800 by Erenbjerg, Sissal V., Albretsen, Jon, Simonsen, Knud, Sandvik, Anne D., Kaas, Eigil

“…This paper describes the FarCoast800 model setup for the Faroe shelf and the validation towards observations. We found that the circulation was in accordance…”
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A tidally driven fjord-like strait close to an amphidromic region by Erenbjerg, Sissal Vágsheyg, Albretsen, Jon, Simonsen, Knud, Olsen, Erna Lava, Kaas, Eigil, Hansen, Bogi

“…The strait studied in this paper, “Sundalagið Norður”, is the northern part of a narrow body of seawater separating the two largest islands in the Faroe…”
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Identifying salmon lice transmission characteristics between Faroese salmon farms by Kragesteen, Tróndur J., Simonsen, Knud, Visser, André W., Andersen, Ken H.

“…Sea lice infestations are an increasing challenge in the ever-growing salmon aquaculture sector and cause large economic losses. The high salmon production in…”
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Estimation of external infection pressure and salmon-louse population growth rate in Faroese salmon farms by Kragesteen, TJ, Simonsen, K, Visser, AW, Andersen, KH

“…Managing salmon louse Lepeophtheirus salmonis outbreaks is a crucial part of salmon aquaculture in sea cages. Treatment management strategies can be optimized…”
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A method of estimating in situ salmon louse nauplii production at fish farms by Norði, Gunnvør á, Simonsen, Knud, Patursson, Øystein

“…Abundance and depth distribution of planktonic sea lice were investigated in relation to hydrodynamics and diurnal solar insolation at a salmon farm in…”
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Environmental impacts of coastal fish farming: carbon and nitrogen budgets for trout farming in Kaldbaksfjør\l=eth\ur (Faroe Islands) by Nor\l=eth\i, Gunnvør á, Glud, Ronnie N., Gaard, Eilif, Simonsen, Knud

“…Flow of organic carbon (OC) and nitrogen through a sea cage trout farm was calculated on the basis of detailed studies of the farming operation, water…”
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Effect of exposure on salmon lice Lepeophtheirus salmonis population dynamics in Faroese salmon farms by Patursson, Esbern J., Simonsen, Knud, Visser, André W., Patursson, Øystein

“…We assessed variations in salmon lice Lepeophtheirus salmonis population dynamics in Faroese salmon farms in relationship to their physical exposure to local…”
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Environmental effects on phytoplankton production in a Northeast Atlantic fjord, Faroe Islands by GAARD, Eilif, ANORÐI, GunnvØr, SIMONSEN, Knud

“…Primary production in the fjords of the Faroe Islands is usually high. Results of productivity measurements in a typical Faroese fjord (Kaldbaksfjord) in 2006…”
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Wave forecasts and small-vessel safety: A review of operational warning parameters by Niclasen, Bárður A., Simonsen, Knud, Magnusson, Anne Karin

“…Traditionally most meteorological offices forecast height, direction and period of wind sea and swell based on phase-averaged wave models. In recent years,…”
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Long-lived vortices as a mode of deep ventilation in the Greenland Sea by Gascard, Jean-Claude, Watson, Andrew J, Messias, Marie-José, Olsson, K. Anders, Johannessen, Truls, Simonsen, Knud

“…The Greenland Sea is one of a few sites in the world ocean where convection to great depths occurs-a process that forms some of the densest waters in the…”
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Modeling Flow Through and Around a Net Panel Using Computational Fluid Dynamics by Patursson, O.E., Swift, M.R., Baldwin, K., Tsukrov, I., Simonsen, K.

“…Flow through and around nets is computed using computational fluid dynamics implemented using FLUENT software. The presented study is focused on net panels…”
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Sulfate transport in toad skin: evidence for mitochondria-rich cell pathways in common with halide ions by Larsen, E H, Simonsen, K

“…1. In short-circuited toad skin preparations exposed bilaterally to NaCl-Ringer's containing 1 mM SO2(-4), influx of sulfate was larger than efflux showing…”
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