In this map, I analyzed elevation rasters in Vancouver in order to produce a map of flooding risk in the event of a storm surge. Should Vancouver face a large storm, land with an elevation of less than five meters, and less than one kilometer inland, will flood. The first map shows the elevation of the greater Vancouver area, with green being safe areas, yellow being areas in little danger, and shades of blue representing areas that may flood. The next map brings into consideration the flooding happening one kilometer from the shoreline, on each side, represented in red. The third map shows roads that will be in danger of flooding. The final map is focused on False Creek, and shows schools and St. Paul’s hospital along with the roads. The resolution of the first three maps is 25 m (done with dem92g), while the resolution of the final map is 1m (done with fcdem1m). The resolution of the first three maps provide an acceptable estimate at the scale of those maps, but upon zooming in are found to be much less accurate. This is an observable source of error, and was shown to portray flooded areas as safe when compared to the 1m resolution layer. Fcdem1m is an acceptable resolution in all scales, but would take lots of space and processing power should it be representing the entire Metro Vancouver area. The size of roads are also not to scale on the smaller scale maps, as they would not be observable otherwise. Schools on the final map are also represented as points, instead of representing the true size.
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