Galanis, George

Kallos, George

Kalogeri, Christina

Larsén, Xiaoli Guo

Online Research Database In Technology

                       General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.  • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal   If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.     Downloaded from orbit.dtu.dk on: Dec 20, 2017Novel Atmospheric and Sea State Modeling in Ocean Energy ApplicationsKallos, George; Galanis, George; Kalogeri, Christina; Larsén, Xiaoli GuoPublished in:Geophysical Research AbstractsPublication date:2013Document VersionPublisher's PDF, also known as Version of recordLink back to DTU OrbitCitation (APA):Kallos, G., Galanis, G., Kalogeri, C., & Larsén, X. G. (2013). Novel Atmospheric and Sea State Modeling inOcean Energy Applications. Geophysical Research Abstracts, 15, EGU2013-5659.Geophysical Research AbstractsVol. 15, EGU2013-5659, 2013EGU General Assembly 2013© Author(s) 2013. CC Attribution 3.0 License.Novel Atmospheric and Sea State Modeling in Ocean Energy ApplicationsGeorge Kallos (1), George Galanis (1), Christina Kalogeri (1), and Xiaoli Guo Larsen (2)(1) University of Athens, School of Physics, Division of Environmental Physics - Meteorology, Athens, Greece(kallos@mg.uoa.gr, (2) Technical University of Denmark, Wind Energy Department, PoBox 49, 4000 Roskilde, DenmarkThe rapidly increasing use of renewable energy sources poses new challenges for the research and technologicalcommunity today. The integration of the, usually, highly variable wind and wave energy amounts into the generalgrid, the optimization of energy transition and the forecast of extreme values that could lead to instabilities andfailures of the system can be listed among them.In the present work, novel methodologies based on state of the art numerical wind/wave simulation systems andadvanced statistical techniques addressing such type of problems are discussed. In particular, extremely highresolution modeling systems simulating the atmospheric and sea state conditions with spatial resolution of 100meters or less and temporal discretization of a few seconds are utilized in order to simulate in the most detailedway the combined wind-wave energy potential at offshore sites. In addition, a statistical analysis based on avariety of mean and variation measures as well as univariate and bivariate probability distributions is used forthe estimation of the variability of the power potential revealing the advantages of the use of combined forms ofenergy by offshore platforms able to produce wind and wave power simultaneously. The estimation and predictionof extreme wind/wave conditions - a critical issue both for site assessment and infrastructure maintenance – is alsostudied by means of the 50-year return period over areas with increased power potential.This work has been carried out within the framework of the FP7 project MARINA Platform (http://www.marina-platform.info/index.aspx).

Novel Atmospheric and Sea State Modeling in Ocean Energy Applications

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Novel Atmospheric and Sea State Modeling in Ocean Energy Applications

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