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Maps of Lands Vulnerable to Sea Level Rise -- On the Gulf Coast

 
Gulf Coast and Florida

Map illustrating lands close to sea level on the Gulf Coast (including Florida).

Download B&W Map (336 KB)
Download Color Map (338 KB)
 Gulf Coast

Map illustrating lands close to sea level on the Gulf Coast.
Download B&W Map (301 KB)
Download Color Map (302 KB)
(Click on maps to see a larger image.)
West Gulf Coast

Map illustrating lands close to sea level on the Western Gulf Coast.
Download B&W Maps (352 KB)
Download Color Maps (353 KB)

 East Gulf Coast

Map illustrating lands close to sea level along the Eastern Gulf Coast.
Download B&W Maps (273 KB)
Download Color Maps (274 KB)
(Click on maps to see a larger image.)
Texas Shore

Map illustrating lands close to sea level on the Texas shore.
Download B&W Maps (188 KB)
Download Color Maps (189 KB)

 Note: Elevations are based on computer models, not actual surveys. Coastal protection efforts may prevent some low-lying areas from being flooded as sea level rises. The 1.5-meter contour depicted is currently about 1.3-meters above mean sea level. Therefore, some of the areas depicted in red will be above mean sea level for at least 100, and probably 200, years. However, because mean spring high water (i.e., high tide during new and full moons) is typically 60 cm above sea level, the 1.3-meter contour would be flooded a few times per month by a 70 cm rise in sea level.
(Click on maps to see a larger image.)

Over the next century, sea level is most likely to rise 55-60 cm along most of the U.S. Atlantic and Gulf Coasts. The 3.5-meter contour roughly illustrates an area that might be flooded over a period of several centuries.

Maps of Lands Vulnerable to Sea Level Rise: Modeled Elevations along the U.S. Atlantic and Gulf Coasts was originally published in Climate Research, 18:205-228 (2001). You can download the underlying geographical information system (GIS) data for an example quadrangle and learn how to obtain the entire dataset underlying this study.


 

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