Coastal Change Hazards: Hurricanes and Extreme Storms

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Hurricane Dennis (1999)

Coastal Change from Lidar:

Rodanthe, NC

Buxton, NC

Pre- & Post-Storm Aerial Photography:

Hurricane Dennis (1999)

Rodanthe, North Carolina

Above - Photo A - Buried Road: Wave overwash covered the road with sand over 1 m thick. Afterwards, road crews removed the sand bulldozers. The resulting morphology of the excavated road is clearly shown in the Post-storm Topographic Map below (see location A).

Selected Locations Map of North Carolina showing study locations

Selected Survey Locations: Click on the other location above, Buxton, NC, to see photographs and data plots from lidar for that location.

Below - Post-storm Topographic Map: Elevations derived from laser altimetry data acquired after Hurricane Dennis in Rodanthe, NC. The ocean is indicated by purple colors and houses on the beach are indicated in red. Houses that were lost during the storm are indicated in white. The locations of the lost houses were found by comparing pre- and post-storm laser altimetry elevations. Locations of surrounding photos (A, B, and C) are noted.

Photo B - Condemned Houses: These three houses stand in the swash zone. The balcony supports were destroyed during the storm.

Photo C - Condemned Houses: With no remaining protective dunes, and subject to inundation during moderate wave conditions, these homes been condemned.

St. Petersburg Coastal and Marine Science Center > Coastal Change Hazards: Hurricanes and Extreme Storms > Hurricane Dennis

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