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Modelling of Waves and Currents in the Baltic Sea.
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Hydraulic Engineering.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Modellering av vågor och strömmar i Östersjön. (Swedish)
Abstract [en]

To facilitate the process of setting up small scale environmental models in coastal and offshore areas a wave model and a 2D current model for the Baltic Sea have been set up with MIKE 21. The ambition is that the Baltic Sea model can serve as a source of boundary conditions for local models.

The main focus in the project has been to determine which input data to use to get the best results and then to calibrate and validate the model with the best data sets available.

The wave model has been tested with three different sources of wind forcing and the results with the different sources are evaluated.

The wave model has been calibrated and validated against five wave buoys and the current model against three current observation stations. The comparison shows that the wave model gives good estimations of wave height, period and direction. The output of the current model coincides with observations where distinct current patterns exist. The wave model is considered a good source to extract wave statistics from for the entire Baltic Sea. The current model can be used for scenarios or areas that do not suffer from the limitations of a 2D model.

Place, publisher, year, edition, pages
2011. , 27 p.
, TRITA-LWR Degree Project, ISSN 1651-064X ; LWR-EX-11-04
Keyword [en]
Wind-generated waves, Wind-induced currents, Shelf seas model, MIKE 21, Spectral wave
National Category
Water Engineering
URN: urn:nbn:se:kth:diva-96232OAI: diva2:529779
Subject / course
Hydraulic Engineering
Educational program
Master of Science in Engineering - Urban Management
Available from: 2012-05-31 Created: 2012-05-31 Last updated: 2012-05-31Bibliographically approved

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