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St. Petersburg Coastal and Marine Science Center > National Assessment of Storm-Induced Coastal Change Hazards > Hurricane Joaquin

National Assessment of Storm-Induced Coastal Change Hazards

Hurricane Joaquin Storm Response

Pre- and Post-Storm Photo Comparisons - Delaware

Hurricane Joaquin, though it did not make direct landfall on the U.S. coastline, affected a broad swath of mid-Atlantic and North-eastern states, from South Carolina to Massachusetts. Onshore winds from Joaquin combined with a non-tropical low pressure system led to high waves and elevated total water levels that impacted the coast for several days, causing extensive beach and dune erosion and even overwash in some locations. Here, photos pairs are used to compare the pre-storm and post-storm conditions at locations representing a broad range of coastal configurations and their response to the storm. Pre-storm photos were acquired during a baseline survey on October 6, 2014 and post-storm photos were acquired October 7, 2015.

Location Map
Location Map.

pre- and post-storm photos
Location 1: Oblique aerial photographs of South Bethany, DE. View looking west along the Delaware shore. Storm waves and surge have eroded the reconstructed dune seen in the upper image (area fenced off and planted with grass) and left a steep dune scarp (green arrow). The yellow arrow in each image points to the same feature. [larger version]

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pre- and post-storm photos
Location 2: Oblique aerial photographs of South Bethany, DE. View looking west along the Delaware shore. High waves from Hurricane Joaquin eroded and narrowed the beach. Sand from the beach was transported offshore forming a sand bar (green arrow), and inland covering dune vegetation (blue arrow). The yellow arrow in each image points to the same feature. [larger version]

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pre- and post-storm photos
Location 3: Oblique aerial photographs of Bethany Beach, DE. View looking west along the Delaware shore. High waves and storm surge from Hurricane Joaquin eroded the dune toe resulting in a steep dune scarp (green arrow). The yellow arrow in each image points to the same feature. [larger version]

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pre- and post-storm photos
Location 4: Oblique aerial photographs of Rehoboth Beach, DE. View looking west along the Delaware shore. High waves and storm surge from Hurricane Joaquin eroded the front of the man-made dune, exposing a layer of darker, heavier sediment (green arrow). The outfall pipe also became exposed as the beach face eroded. The yellow arrow in each image points to the same feature. [larger version]

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St. Petersburg Coastal and Marine Science Center > National Assessment of Storm-Induced Coastal Change Hazards > Hurricane Joaquin

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Location 3 Location 4 Location 1 Location 2