geology McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams


Home » Global Sea Level Rise Map » New Orleans and the Gulf Coast

New Orleans and Gulf Coast - Sea Level Rise Map


The map below shows areas of the Texas, Louisiana, Mississippi and Alabama coastlines that would be flooded at various stages of sea level rise. You can select a value of sea level rise using the dropdown box in the upper left corner of the map. The navigation buttons can be used to zoom in/out and pan across the map.

The map clearly shows that a sea level rise of only a few meters would inundate thousands of acres of highly developed land, beach communities and habitat along the Gulf Coast. If you zoom in on New Orleans, Morgan City, Lake Charles, Port Arthur, Mobile, Galveston, Freeport or other areas you can see communities, railroads, ports, factories, refineries and other types of land use that will be under water. The United States Gulf coast will be one of the hardest areas hit if sea level rise associated with global warming continues.

This map is not a carefully surveyed and extremely accurate presentation. It is intended to provide a visual impression of which geographic areas might be flooded if global warming and climate change continue unabated.

This sea level rise map was created by Alex Tingle of firetree.net using the Google Maps API, NASA data and lots of programming savvy. He explains how the map was created, the sea level data and issues about map accuracy here. We thank Alex for allowing us to share this map on Geology.com. Also thanks to Google and NASA for providing the resources needed to make this map.