EBP APPLICATIONS

1
EBP APPLICATIONS

• Can determine width of active profile if depth of
  no motion (closure depth) is known or can be
  estimated

w
h
2
BEACH RESPONSE TO CHANGE IN SEA LEVEL
What happens to profile as sea level goes up or
down ? Sea level rise causes profile retreat
because just after rise profile is too
steep Recall that
so if h increase, dh/dy must decrease to maintain
D ? BIG QUESTION ? How far should the
profile retreat?
3
SEA LEVEL RISE
http//www.gfdl.noaa.gov/tk/climate_dynamics/clim
ate_impact_webpage.html
Red indicates regions of the southeastern United
States that would be below sea level for
regionally uniform rises of one, two, four, and
eight meters.
4
BRUUN RULE
Given some known rise (or fall) in sea level
determine the profile retreat (or
advance) Determined in terms of horizontal
recession and sea level rise
Arises from the profile shifting landward and
upward with a sea level rise.
Dean and Dalrymple, 2002)
5
EDELMAN METHOD
Removes requirement that SltltB
Dean and Dalrymple, 2002)
Where Bo is dune height
6
STORM SURGE ASSUMING EBP
Dean and Dalrymple, 2002)
Requires iteration
7
METHOD COMPARISON