Map & graph of Fire Island shoreline change October 2012 - March 2013

Statistics plotted include the net shoreline movement (NSM), which is the total movement between the two shoreline positions. This measurement of change uses only two dates, and thus is considered an end point measure of change, as it does not use any other information between dates. Sandy impact (blue line): The net shoreline movement following Hurricane Sandy (Oct 27 – Nov 05) was progradational and averaged 9.9 m but movement ranged from +43.7 m to -22.4 m. Post-Sandy winter (red line): From Nov 5 - Mar 13, the average shoreline change was highly erosional (-35.4 m) with a maximum landward shift of -66.9 m.