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The MI-SAFE viewer enables via WPS data retrieval over the profile via OGC services. To acquire these data for a queried location (point), the tool first determines a transect perpendicular to the nearest coastline. This transect runs 1000 m inland of the point where the bed level equals MSL and 1000 m seaward of this point; the area of interest where most wave attenuation occurs. This data is then used to query a pre calculated table of model results. The wave attenuation thus obtained is compared to the wave attenuation over a similar but bare transect. The result is shown  indicating indicating whether or not vegetation is existent in the intertidal and/or contributes to wave attenuation; the criterion for the latter is whether the situation with vegetation causes 20% lower waves than without vegetation. 

MI-SAFE tool results: conditions, confidence, context and sensitivity

Expert functionality

For the FAST fieldsites, the conditions tab displays the bed level from local sources (e.g. DEM), the local water level (from hydraulic boundary conditions), the vegetation cover (from EO) and the change in wave height (from site-specific XBeach calculations) from offshore to the levee. The confidence tab indicates the origin of the various data sources (bathymetry, topography, wave height, surge or water level, vegetation presence and vegetation properties) by mouse-over and the confidence associated with these sources. The confidence is expressed in colours and linked to the detail, accuracy and particularity of the information: Green implies the highest confidence, typically for local DEMs based on LiDAR, hydraulic boundary conditions and local LAI maps that account for spatially varying vegetation properties. Orange stands for e.g. TEA topography, hydraulic boundary conditions that apply to larger stretches (multiple kilometers) of coastline and vegetation presence from EO combined with locally observed spatially uniform vegetation properties. Red means SRTM or GEBCO data for bed level, a simple translation of ERA-Interim waves and GTSM surge levels to nearshore and vegetation properties based on standard vegetation types.

Educational functionality

The conditions tab (Figures 2 and 24) displays the local bed level perpendicular to the coast with the intertidal part highlighted

The case study sites

In the figure below, Figure 25, the location of the FAST case study sites are shown. In each red box, two locations are selected, leading to a total of eight case study sites in four countries. 

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