Geological Hazards and Their Impact_McGeary_Date_051710

Geological Hazards and Their Impact_McGeary_Date_051710 -...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Review sessions: Thursday and Sunday FINAL EXAM: 1030-1230 Monday, may 24 th beach erosion (cyclical) seasonal storms beach erosion (permanent) cut off sand supply (dams, breakwaters interrupt longshore drift) major storms sea level rise shoreline retreat (looking at bigger picture of the coast) (on flat coasts) Barrier Island Systems - between islands tidal inlet - lagoon - behind lagoon/island salt marshes (are at sea level initially)e - behind marshes land/forests Major Storms - washover fan during storm, waves move sand into lagoon, therefore sand is moved permanently landward
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Rising Sea Level - more storms that create washover fans - sand is continuously moved landward - everything moves landward and upward in space and time (LUST) - shoreline itself moves problem is that human structures dont move - sea level rise is 1 ft in the last 100 years in Delaware 50-60 ft horizontal move in the beach Mitigation 1) beach hardening (engineer) sea walls o eventually leads to erosion underneath the wall breakwaters groins stop longshore drift 2) beach replenishment/nourishment 3) retreat...
View Full Document

Page1 / 2

Geological Hazards and Their Impact_McGeary_Date_051710 -...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online