A high resolution tidal model for the area around The Lofoten Islands, northern Norway

Moe, Halvard; Ommundsen, Atle; Gjevik, B.

doi:10.1016/s0278-4343(01)00078-4

Cited by 28 publications

(36 citation statements)

References 13 publications

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“…The most questionable assumption is, however, that the cross-sectional area will not change with time. To come around this problem, the value of the cross-sectional area in Equations (6,7) is the value at maximum velocity.…”

Section: Estimation Ofûmentioning

confidence: 99%

“…These models have increased the knowledge of the complex tidal regime in narrow channels where the hydrokinetic power is strong. As was pointed out by Grabbe et al [1], various numerical models, calibrated with tidal level data, have been conducted in Norway before [6][7][8][9], however not for the use of estimating the tidal current resource.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of a Model for Predicting the Tidal Velocity in Fjord Entrances

Lalander

Thomassen²,

Leijon

2013

Energies

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Sufficiently accurate and low-cost estimation of tidal velocities is of importance when evaluating a potential site for a tidal energy farm. Here we suggest and evaluate a model to calculate the tidal velocity in fjord entrances. The model is compared with tidal velocities from Acoustic Doppler Current Profiler (ADCP) measurements in the tidal channel Skarpsundet in Norway. The calculated velocity value from the model corresponded well with the measured cross-sectional average velocity, but was shown to underestimate the velocity in the centre of the channel. The effect of this was quantified by calculating the kinetic energy of the flow for a 14-day period. A numerical simulation using TELEMAC-2D was performed and validated with ADCP measurements. Velocity data from the simulation was used as input for calculating the kinetic energy at various locations in the channel. It was concluded that the model presented here is not accurate enough for assessing the tidal energy resource. However, the simplicity of the model was considered promising in the use of finding sites where further analyses can be made.

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Section: Estimation Ofûmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of a Model for Predicting the Tidal Velocity in Fjord Entrances

Lalander

Thomassen²,

Leijon

2013

Energies

View full text Add to dashboard Cite

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“…However, Vestfjorden acts as a trap of the semi-diurnal component and a strong sea level gradient appears between the area outside of Lofoten and Vestfjorden [56]. North of Lofoten the shelf-waves split up, one branch following the continental slope towards Svalbard, and the other continuing along the coast where it slows down and increases in height as it approaches Vardø (see Fig.…”

Section: Tidesmentioning

confidence: 99%

“…The authors of [59] and [64] used the same numerical model to study the tidal flow in the entire Lofoten area in [56]. The simulation spanned an area roughly 350 km by 350 km out of which approximately 3/4 were sea and 1/4 land.…”

Section: The University Of Oslo Modelmentioning

confidence: 99%

“…These figures were correlated with data from [48] and found to be in general agreement, especially with regard to temporal shift in the current throughout the tidal cycle. While the geographical positions chosen for evaluation in [56] may be obviously unsuitable for tidal energy extraction-they seem to have been selected mainly due to their importance as local shipping lanes-, the potential of the numerical model for use in evaluation of possible tidal energy sites should nevertheless be clear.…”

Section: The University Of Oslo Modelmentioning

confidence: 99%

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A review of the tidal current energy resource in Norway

Grabbe

Lalander

Lundin

et al. 2009

Renewable and Sustainable Energy Reviews

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As interest in renewable energy sources is steadily on the rise, tidal current energy is receiving more and more attention from politicans, industrialists, and academics. In this article, the conditions for and potential of tidal currents as an energy resource in Norway are reviewed. There having been a relatively small amount of academic work published in this particular field, closely related topics such as the energy situation in Norway in general, the oceanography of the Norwegian coastline, and numerical models of tidal currents in Norwegian waters are also examined. Two published tidal energy resource assessments are reviewed and compared to a desktop study made specifically for this review based on available data in pilot books. The argument is made that tidal current energy ought to be an important option for Norway in terms of renewable energy.

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Impact of data assimilation on Eulerian versus Lagrangian estimates of upper ocean transport

2017

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Using four‐dimensional variational analysis, we produce an estimate of the state of a coastal region in Northern Norway during the late winter and spring in 1984. We use satellite sea surface temperature and in situ observations from a series of intensive field campaigns, and obtain a more realistic distribution of water masses both in the horizontal and the vertical than a pure downscaling approach can achieve. Although the distribution of Eulerian surface current speeds are similar, we find that they are more variable and less dependent on model bathymetry in our reanalysis compared to a hindcast produced using the same modeling system. Lagrangian drift currents on the other hand are significantly changed, with overall higher kinetic energy levels in the reanalysis than in the hindcast, particularly in the superinertial frequency band.

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A high resolution tidal model for the area around The Lofoten Islands, northern Norway

Cited by 28 publications

References 13 publications

Evaluation of a Model for Predicting the Tidal Velocity in Fjord Entrances

Evaluation of a Model for Predicting the Tidal Velocity in Fjord Entrances

A review of the tidal current energy resource in Norway

Impact of data assimilation on Eulerian versus Lagrangian estimates of upper ocean transport

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