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- OS51E-0448: Assessing Storm Event and Decadal Shoreline Change in Northern Assateague from Satellite Imagery
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Board 0448‚ Hall EFG (Poster Hall)NOLA CC
Author(s):Generic 'disconnected' Message
Jessica Cyr, Purdue University (First Author, Presenting Author)
Julia Greco, University of Delaware
Cameron Bodine, University of Delaware
Arthur Trembanis, University of Delaware
Tracking how beaches change over time is quite important for planning and evaluating beach management practices. Long-term beach data is often not available, so to study how the shoreline has changed, we used satellite imagery from 1984 to May 2025. The beach we are interested in is the ocean-side of Assateague Island, a barrier island partly in Maryland and partly in Virginia. Jetties built near Ocean City Inlet, the inlet that separates Assateague Island in the north from Fenwick Island, have disrupted the natural flow of sand. To counteract this, sand has been added to the beach in a certain area since the 1930s, with a more organized effort starting in 2002. We extracted shoreline positions for each satellite image and compared them over time to see how the beach has changed. For a few select storms and sand placements, we looked at before and after images to find how much that event impacted the shoreline, and then compared these changes to storm strength or the amount of sand dumped. This approach helps us understand both long-term trends and short-term impacts on Assateague’s beach, which can guide future efforts to protect and manage the shoreline.
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