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Introduction to Shoreline Change Mapping and Management. Stephen Leatherman Laboratory for Coastal Research Florida International University. ISSUES DISCUSSED IN MAY 2002. Analysis Time Scales Shoreline Indicators Quantifying Change Illustrating Change Data Technology Partnerships.
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Introduction to Shoreline Change Mapping and Management Stephen Leatherman Laboratory for Coastal Research Florida International University
ISSUES DISCUSSED IN MAY 2002 • Analysis Time Scales • Shoreline Indicators • Quantifying Change • Illustrating Change Data • Technology • Partnerships
DUNE CREST VEGETATION LINE DUNE TOE BERM CREST WET-DRY LINE SHORELINE INDICATORS HIGH WATER LEVEL
ILLUSTRATING CHANGE DATA LR Rate (ft/yr)
PARTNERSHIPS • NOAA/NOS/NGS • USACE • USGS • Wash. Dept. of Ecology • Oregon Dept. of Geology • OSU • Univ. of Hawaii • W.F. Baird & Assoc. • Univ. of Delaware • Univ. of Toledo • Georgia Southern Univ. • Skidaway Inst. of Ocean. • State Univ. of W. Georgia • UNC • IHRC
NEW TOOLS Digital Shoreline Analysis System Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Miller, T.L., 2005, Digital Shoreline Analysis System (DSAS) version 3.0: An ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2005-1304.
STORM HOTSPOTS • Large-Scale GPS • Shoreline hotspots reverse at similar magnitudes List, Farris & Sullivan, USGS, 2006Marine Geology
SEACLIFF BEACH-SEDIMENT • LIDAR • Seacliff retreat • Seacliff sediment contribution Young & Ashford, U.C. San Diego, 2006JCR
NATIONAL SHORELINE CHANGE Morton, Miller, Sallenger, Moore, USGS, 2004 to present
LIDAR DERIVED SHORELINES Water level above MHW contour Contoured Mean High Water Level
Wet/Dry Line MHW Level MHHWL LIDAR DERIVED SHORELINES Robertson, Whitman, Zhang & Leatherman, FIU, 2004JCR
SHORELINE & VOLUME • Is it accurate to call landward shoreline migration “erosion?” • High-resolution LIDAR • New tools for 3D analysis Leatherman, Douglas & LaBrecque, FIU, 2003EOS
SHORELINE & VOLUME • LIDAR • Panama City, FL • Shorelines do not match subaerial volume change Robertson, FIU, in prep.