Blue = water. Default is a 12-month median of every clear Sentinel-2 pass — the current mean shoreline. Slide left to step back through individual dated passes.
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—ft/yr long-term
—ft setback
—yr horizon
Blue overlay = today's satellite waterline. Rate & setback are the USGS long-term record for this parcel.
Ocean shore eroding
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long-term, USGS DSAS · Atlantic & Gulf
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Eroding shore
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Fastest erosion
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Fastest gain
Long-term rate · m/yr (USGS DSAS)
−5 · erosion0 · held+20 · accretion
Everglades & Keys · mangrove/coral — not in the USGS sandy-shoreline record
Sea surface temp · JPL MUR · —
cooler°warmer
Colored line = USGS DSAS long-term shoreline-change rate (Gulf of Mexico OFR 2010-1118 & Southeast Atlantic OFR 2005-1401, Hapke/Morton et al.), m/yr. Florida's beaches are among the most heavily nourished in the country — a managed rate masks the underlying trend. Screening, not a survey.