Print Email Facebook Twitter Hindcast of 1st Nov 2006 Storm in the Norderneyer Inlet: Wave & Flow boundary conditions Title Hindcast of 1st Nov 2006 Storm in the Norderneyer Inlet: Wave & Flow boundary conditions Author Lim Sin Hwei, L. Corporate name Rijkswaterstaat Project SBW Date 2008-07-09 Abstract In the framework of the SBW (Strength and Loading of Water Defenses) project which Deltares has been commissioned to execute for Rijkswaterstaat Waterdienst, Rijkswaterstaat has requested a hindcast of the 1st November 2006 storm as part of the International Data Exchange Project, in this case an exchange between Netherlands and Germany. This storm is very interesting for the SBW (Strength and Loading of Coastal Structures) project, the objective of which is to develop reliable tools to determine hydraulic boundary conditions in the Wadden Sea. One of these tools is the SWAN wave transformation model, the reliability and performance of which needs to be validated using large measured storms. During the 1 November 2006 storm high water levels and high waves occurred both in the Dutch and German parts of the Wadden Sea. Since the geography of the two areas is similar, it is worthwhile investigating whether SWAN can reproduce the wave conditions in the Norderneyer Inlet. FSK Norderney will perform the hindcast study. However, since wave data offshore is not available during the time of the storm, Deltares is given the responsibility of determining the offshore boundary conditions for both the wave model and the flow model, which FSK Norderney will use as input for the hindcast of the tidal inlet. The performed hindcast provides the required offshore boundary conditions for the future wave and flow computations. Where measurements are available, the computed results compare well with the measurements. There are no wave measurements available outside the inlet to validate the hindcasts, but the results seem to be correct in a qualitative sense. One of the findings in this study is that the computed water levels underpredicted the peak of the measured water levels, if 6-hr interval windfields were used. Application of 3-hr interval windfields, obtained from the official 6hr intervals interlaced with predicted 3hr windfields, improved the results dramatically. Subject Wadden SeaSwanNorderney Classification TLJ300200 To reference this document use: http://resolver.tudelft.nl/uuid:7d26d420-aaa3-41d8-9cec-f4e96e5360e9 Publisher Deltares Source H5107 43 for Rijkswaterstaat Part of collection Hydraulic Engineering Reports Document type report Rights (c) 2008 Deltares Files PDF H5107-43-jun2008.pdf 6.19 MB Close viewer /islandora/object/uuid:7d26d420-aaa3-41d8-9cec-f4e96e5360e9/datastream/OBJ/view