1 / 24

Shoreline Change Analysis; Sea Level Exceedence Projections

Shoreline Change Analysis; Sea Level Exceedence Projections. Tiffany Anderson Sea Grant Extension Agent on Kauai. Overview. Historical shoreline data Storms in shoreline change analysis Advection and diffusion in shoreline change analysis Tide gauge data - project exceedence levels.

milica
Download Presentation

Shoreline Change Analysis; Sea Level Exceedence Projections

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Shoreline Change Analysis; Sea Level Exceedence Projections Tiffany Anderson Sea Grant Extension Agent on Kauai

  2. Overview Historical shoreline data Storms in shoreline change analysis Advection and diffusion in shoreline change analysis Tide gauge data - project exceedence levels

  3. UH Coastal Geology Group • Shoreline change studies (sandy shorelines) • Oahu, Maui, Kauai • Extract shorelines from historical aerial photos • Shoreline change modeling and analysis • Results - Maps

  4. Mapping Historical Shorelines portion of an aerial photo mosaic

  5. Storms in Shoreline Change Analysis – single transect Frazer, Anderson, and Fletcher, Geophys. Res. Lett., 2009

  6. Storms in Shoreline Change Analysis – alongshore Anderson, Frazer, and Fletcher, Geophys. Res. Lett., 2010

  7. Storms in Shoreline Change Analysis – alongshore Anderson, Frazer, and Fletcher, Geophys. Res. Lett., 2010

  8. Storms in Shoreline Change Analysis – alongshore Anderson, Frazer, and Fletcher, Geophys. Res. Lett., 2010

  9. Advection and Diffusion in shoreline change analysis Goals: 1. Improve prediction 2. Extract sediment transport information

  10. Kailua Shorelines

  11. Mathematical Model

  12. Procedure

  13. Results – Parameters

  14. Results – Shoreline Position Prediction

  15. Results – Shoreline Position Prediction

  16. Results – Sediment Transport

  17. Results – Sediment Transport

  18. Sea Level Exceedence Projections • Information on inundation due to sea level rise by: 1. Scenario 2. Timescale

  19. MHHW MHHW – mean of highest daily tide over tidal epoch

  20. Projected Sea Level0.75-1.90 m (1 m even in best case)with Maui subsidence (0.82- 1.97 m) Worst case scenario Lands within 25 cm of MHHW Best case scenario Vermeer and Rahmstorf, 2009

  21. 1 week per year 3 weeks per year 3 months per year

  22. 10 months per year 6 weeks per year 1 week per year

  23. Thank you! tranders@hawaii.edu cell: (808) 639-4845

More Related