![]() In this section, you explored the data to better understand the situation of the municipality of Hvidovre, especially in terms of elevation and proximity to the sea. In the Contents pane, turn off the Buildings and DHyMSea layers.Note that low elevation areas contain many buildings, which could all be affected in a storm surge inundation. This is a polygon feature class that represents the 2D footprints of residential and industrial buildings in 2020. The Buildings layer appears on the map, symbolized in black. In the Contents pane, check the check box next to the DHyMSea layer to turn it on.The photo is taken a little south of location 1, from the dike that protects the industrial area. The following picture is a view showing the sea, the salt meadow to its left, and the residential area farther behind. The second is an industrial area on the southern coast (2). The first one is a residential area on the eastern coast (1) that is situated along a natural salt meadow. It has a height, or crown level, of 3.3 meters.Īs you will discover through the analysis, two areas are particularly vulnerable to storm surges. The following picture shows the dike raised in 1964-66 in Hvidovre. It is also interesting to note that a major highway (in dotted red) connects Copenhagen to the island of Amager, where Copenhagen's international airport is located.Ī dike is defined as a long wall or embankment built to prevent inundation from the sea. The municipality government of Hvidovre has deployed great effort to protect the area against storm surges over the years, building a dike in 1964-66 (represented in bright pink) and a second one in 1989 (in cyan blue). In particular, you can see that its eastern and southern sides are in direct contact with the sea. The imagery basemap gives you a glimpse of the municipality's layout. The southern part of the municipality, outlined in red, constitutes the area of study. The municipality of Hvidovre is on the coast of the Baltic Sea, about 8 kilometers southwest of Copenhagen. If you're using a different version of ArcGIS Pro, you may encounter different functionality and results. ![]() This lesson was last tested on December 6, 2021, using ArcGIS Pro 2.8. In the last part of this lesson, you will learn how to replicate this analysis in your own area of interest. This type of analysis, called inundation screening, is all the more crucial in the context of climate change, sea-level rise, and increased frequency of storm surge occurrences. Finally, you will verify that the addition of such new dikes would avoid potential catastrophic inundations in the future. Next, you will identify weak points that might allow the water to flow through, and might benefit from the construction of one or more new protective dikes. First, you will determine the potential impact of storm surges of 16 different sea levels varying between 1 and 4 meters. You will perform this analysis in ArcGIS Pro, using models developed in ModelBuilder. In this lesson, as a climate resilience analyst in Denmark, you want to assess the vulnerability of Hvidovre, a coastal municipality close to Copenhagen, to inundations caused by storm surges. A storm can generate a rise of sea levels called storm surge.
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