USGS, NOAA, FEMA
U.S. Geological Survey
Data Series 236
Data layers containing historic shorelines of the Seaside, Oregon, area are provided in vector format. The data were developed to analyze accretion and erosion trends along the dynamic Seaside and Necanicum River coast (Venturato, 2005).
(A) Historic shoreline depicting the apparent Mean High Water line based on orthophotography obtained from the University of Oregon.
(B) Accretion and erosion trends of the Necanicum River mouth over a 55-year period.
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