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Introduction to Shoreline Change Mapping and Management

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

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  1. Introduction to Shoreline Change Mapping and Management Stephen Leatherman Laboratory for Coastal Research Florida International University

  2. ISSUES DISCUSSED IN MAY 2002 • Analysis Time Scales • Shoreline Indicators • Quantifying Change • Illustrating Change Data • Technology • Partnerships

  3. ANALYSIS TIME SCALES

  4. DUNE CREST VEGETATION LINE DUNE TOE BERM CREST WET-DRY LINE SHORELINE INDICATORS HIGH WATER LEVEL

  5. QUANTIFYING CHANGE

  6. ILLUSTRATING CHANGE DATA LR Rate (ft/yr)

  7. TECHNOLOGY: GPS

  8. TECHNOLOGY: LIDAR

  9. 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

  10. 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.

  11. STORM HOTSPOTS • Large-Scale GPS • Shoreline hotspots reverse at similar magnitudes List, Farris & Sullivan, USGS, 2006Marine Geology

  12. SEACLIFF BEACH-SEDIMENT • LIDAR • Seacliff retreat • Seacliff sediment contribution Young & Ashford, U.C. San Diego, 2006JCR

  13. NATIONAL SHORELINE CHANGE Morton, Miller, Sallenger, Moore, USGS, 2004 to present

  14. LIDAR DERIVED SHORELINES Water level above MHW contour Contoured Mean High Water Level

  15. Wet/Dry Line MHW Level MHHWL LIDAR DERIVED SHORELINES Robertson, Whitman, Zhang & Leatherman, FIU, 2004JCR

  16. SHORELINE & VOLUME • Is it accurate to call landward shoreline migration “erosion?” • High-resolution LIDAR • New tools for 3D analysis Leatherman, Douglas & LaBrecque, FIU, 2003EOS

  17. SHORELINE & VOLUME • LIDAR • Panama City, FL • Shorelines do not match subaerial volume change Robertson, FIU, in prep.

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