download the new version for windows Against the Storm

The Intergovernmental Panel on Climate Change (IPCC) has predicted that average global sea level could increase by 60 to 110 centimeters by 2100 if greenhouse gas emissions continue to increase significantly. You can also use this same process to model sea level rise. Finally, you symbolized the new layers to visualize the flood areas.īecause the Terrain imagery layer covers the entire world, you can use this same workflow for any coastal area. You used the Remap raster function to find the areas that are below certain elevations. You obtained elevation data by adding the Terrain layer from ArcGIS Living Atlas to your map and exporting the extent of interest to a local raster. In this tutorial, you completed a workflow to map the potential extent of a large storm surge in New York City.

When you're done, on the ribbon, click the Map tab, in the Navigate group, click the Explore button to exit swipe mode.

Next, you'll map what such a large surge would look like in the present-day city.īecause New York has historically seen a storm surge this high, it is not unreasonable to plan for such an event in the future.

This storm was powerful enough to almost completely submerge Hog Island, a former island along the Rockaway shore. In 1893, New York City was hit by a hurricane that brought with it a 30-foot (9-meter) storm surge. In this section, you used elevation data to create a flood map corresponding to a 3-meter storm surge, and then you compared it to the flood caused by Hurricane Sandy in 2012.

However, while a unique combination of weather factors made Sandy particularly destructive, storms with larger surges have hit the city in the past. Such a large storm had not been seen in their lifetimes.

Most people in New York and New Jersey were caught by surprise by this storm, not expecting that their homes were at risk of flooding. Optionally, you can use the Remap tool again to generate a 3.5-meter storm surge layer, and see if the result matches the Hurricane Sandy layer more closely.

Download the new version for windows Against the Storm