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Airphoto mosaic of Old Topsial Inlet after Hurricane Bonnie

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Karen Morgan
  Southern Section - Old Topsail Inlet
34°19.43'N   77°40.61'W

Old Topsail Inlet is located just off the south end of Topsail Island. The change plot below shows that during Hurricane Bonnie this inlet was filled and overwashed. To the south of the inlet the yellows and reds indicate beach erosion. Directly landward of that erosion, overwash fans (blue) can be seen. Profile comparison 1 and comparison 2 show extensive erosion of beach and dunes with overwash deposits further landward. Overwash deposits were as much as 1.0 meter thick. Profile comparison 3 shows a broad area of sheet overwash filling the channel of Old Topsail Inlet. This profile cuts across beach that was eroded during the storm. The 1997 elevation data also shows the location of the channel before the storm.

About the Change Plot 1997-1998 Change Change Scale Elevation Data
Elevation Data
About the Elevation Data

Passive Data
Passive Data

About the Passive Data

Coastal and Marine Program > St. Petersburg Coastal and Marine Science Center > Research by Theme > Hazards > Hurricane and Extreme Storm Impact Studies > Hurricane Bonnie > Coastal Change From Lidar > South Section


U.S. Department of the Interior, U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
http://coastal.er.usgs.gov/hurricanes/bonnie/lidar/south.html
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Updated December 02, 2016 @ 11:56 AM (THF) North Section Middle Section Profile 1 Profile 2 Profile 3