Modelling Wind Waves in the Romanian Coastal Environment

Rusu, Liliana; Ivan, Angela Stela

doi:10.30638/eemj.2010.076

Cited by 11 publications

(7 citation statements)

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“…However, resolution and limited physical solutions for the nearshore environments prompted long-term studies, both for waves and energy assessments [129,130]. Akpinar et.al.…”

Section: Model Applicationmentioning

confidence: 99%

Application of numerical wave models at European coastlines: A review

Lavidas

Venugopal

2018

Renewable and Sustainable Energy Reviews

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Significant advancements have been made in the past few decades (since the 1980s) on detailed evaluation and quantification of wave resources globally. Larger availability and advances of computational resources have contributed to the utilisation of numerical wave models as powerful tools in climatic and energy studies. This review presents current state-of-the-art numerical tools and their status in the process of wave power assessments. We focus on the evolution of studies undertaken at the European coastline regions and the Black Sea.Although, a number of studies have been successfully developed and implemented in the past contributing to our understanding of the resource, this paper discusses the benefits, limitations and potential for improvement of numerical tools. From the literature, it is evident that different applications and scale may require different models, however, it is also the experience and knowledge of the user, applied in the tuning of a number of parameters that govern the process of wave generation, propagation, and the quality of input parameters that are the cornerstones of a successful model. This review depicted that the use of numerical wave models, depending on specific region and application, offers significant benefits on quantification of coastal zone wave resources which benefit multiple offshore applications and the energy industry.

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“…However, resolution and limited physical solutions for the nearshore environments prompted long-term studies, both for waves and energy assessments [129,130]. Akpinar et.al.…”

Section: Model Applicationmentioning

confidence: 99%

Application of numerical wave models at European coastlines: A review

Lavidas

Venugopal

2018

Renewable and Sustainable Energy Reviews

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“…An extended description of the implementation in the Black Sea of the wave prediction system, SWAN based, is given in [3], [4] and [5]. Some additional information concerning the model settings and the physical parameterizations considered for the SWAN simulations carried out in the basin of the Black Sea is given in Table I.…”

Section: Implementation Of the Wave Prediction System In The Blacmentioning

confidence: 99%

A data assimilation scheme to improve the wave predictions in the Black Sea

Butunoiu

Rusu

2015

OCEANS 2015 - Genova

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The objective of the work is to evaluate a data assimilation scheme for improving the reliability of the wave predictions in the Black Sea. A wave modeling system, SWAN based, has been implemented in the Black Sea and it was extensively tested against both in situ and remotely sensed measurements. Subsequently, this system was focused on various coastal environments in a multi-level nested scheme. In order to assimilate the satellite data, for the wave generation level that covers the entire basin of the Black Sea, an Optimal Interpolation (OI) technique has been implemented. SWAN model simulations have been performed covering a 10-year time interval (1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008). For this period, Hs measurements from the following satellites were available: ERS-2, Poseidon, JASON-1, JASON-2, GEOSAT Follow-On (GFO), ENVISAT, TOPEX. The assimilation technique was performed for a time window of 24h considering the first 5 satellites for assimilation and the last two (ENVISAT and TOPEX) for validations. The results show that the assimilation scheme implemented induces a visible improvement of all the statistical parameters evaluated, increasing in this way the reliability of the wave predictions. The work is still ongoing being focused on the prediction of the major storms and as a further step all the satellites will be considered for assimilation, while validations are going to be performed against various in situ measurements.

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“…A multilevel, SWAN-based wave prediction system has been implemented and focused on the western side of the sea in a downscaling process [32][33][34][35]. Various sensitivity tests and validations have been carried out for each computational level [36], taking into account also the computational strategies adopted in other coastal environments where the model results have been intensively validated against in situ measurements and remotely sensed data [37].…”

Section: Computational Levels Definedmentioning

confidence: 99%

Study of the Wave Energy Propagation Patterns in the Western Black Sea

Rusu

2018

Applied Sciences

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The most relevant patterns of the wave energy propagation in the western side of the Black Sea were assessed in the present work. The emphasis was put on the western side because this is also the most energetic part of the Black Sea. The assessments performed relate some recent results provided by a numerical wave modeling system based on the spectrum concept. The SWAN model (acronym for Simulating Waves Nearshore) was considered. This was implemented over the entire sea basin and focused with increasing resolution in the geographical space towards the Romanian nearshore. Furthermore, some data assimilation techniques have also been implemented, such that the results provided are accurate and reliable. Special attention was paid to the high, but not extreme, winter wave energy conditions. The cases considered are focused on the coastal waves generated by distant storms, which means the local wind has not very high values in the targeted areas. This also takes into account the fact that the configuration of the environmental matrix in the Black Sea is currently subjected to significant changes mainly due to the climate change. From this perspective, the present work illustrates some of the most recent patterns of wave energy propagation in the western side of the Black Sea, considering eight different SWAN computational domains. According to most of the recent evaluations, the nearshore of the Black Sea is characterized by an average wave power lower than 6 kW/m. The results of the present work show that there is a real tendency of the wave energy enhancement. This tendency, especially concerns the western side of the basin, where in the high conditions considered, values of the wave power about 10 times greater than the average have been noticed. despite some initial difficulties related to the high cost of installation and operating conditions in the harsh marine environment, very high dynamics in increasing the efficiency of the offshore wind can be also noticed. This is measured, especially through the levelized cost of energy (LCOE), which reached a record value of about 7 c€/kWh in 2017, or less. Thus, 5.5 c€/kWh have been reported at the 700 MW Borssele (The Netherlands) due to government tender and size, and 5c €/kWh (without transmission) at the 600 MW Kriegers Flak (Denmark) [2]. This means the offshore wind becomes now not only the cheapest marine renewable energy resource, but it is also cheaper than some traditional resources. For example, the current average LCOE for atomic energy is still about 11 c€/kWh, or greater [3].Various studies [4][5][6][7] showed that the wind energy resources along the coasts of the Black Sea, and especially in its western side, are comparable with those from many offshore wind farms that are already operational [8][9][10][11]. Thus, it is expected that the high dynamics of the offshore wind industry will have as a result also the implementation of some wind farm projects in the nearshore of the Black Sea, in general and in its western side, which is more energetic, in spe...

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Modelling Wind Waves in the Romanian Coastal Environment

Cited by 11 publications

References 0 publications

Application of numerical wave models at European coastlines: A review

Application of numerical wave models at European coastlines: A review

A data assimilation scheme to improve the wave predictions in the Black Sea

Study of the Wave Energy Propagation Patterns in the Western Black Sea

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