Opener: 3/27
Copy this on the notes page!
Plants in the dunes have
These special adaptations:
1.
2.
3.
4.
5.
6.
7.
Succulent leaves/stems to store water
Waxy coatings to keep water in
Long roots to reach water (holds sand)
Fine hairs to stop wind/evaporation
Stickers and spines to protect leaves
Vine to attach to other plants
Few stomata to keep water in.
• Chaperones??
We love our beaches
and barrier islands!!!!
What are beaches??
•Typical beach features:
Analyze the summer and winter profiles
– what is the difference and why?????
(think…energy) –
Barrier Islands!!
Barrier Islands, cont.!!
Barrier islands and sandy beaches
Barrier islands
Coasts Video
answer as many
questions as possible,
no talking please
Happy Monday! 4/6/2015
Welcome Back!
• QUICK mini-quiz on Waves
• You can use your notes and
homework!
– Please have those out on your desk. 
Typical barrier island profile:
Folly Beach, Isle of Palms, Sullivan’s Island
Barrier islands
•“Survive” b/c they are flexible, dynamic,
constantly changing
•WHAT causes them to change???
Longshore current:
Longshore transport
Longshore Drift Animation
Why which
shape?
Drumstick barrier islands
•They have a
“drumstick”shape
CAUTION - Rip currents!!!
How do dunes form?
Man-made devices
to “save” beaches!
1.
Tides Hotel, Folly Beach!
Is it working????
Man made devices
to “save” beaches!
2.
Man made
devices
to “save”
beaches!
3.
Man made devices to “save” beaches!
4.
Folly Beach Icon,
The Atlantic House Restaurant!
Before & After Hurricane Hugo
So . . . . . Knowing what you NOW know
about barrier islands and beaches,
let’s talk about the following
questions!
1. Are barrier islands wise places to build a million
$ beach house? Why or why not?
2. Why are the summer and winter beach profiles
different?
3. What are 2 reasons that barrier islands are
critical and need to be protected?
4. What is longshore transport and how does it
affect barrier islands?
5. What are rip currents and what should you do if
caught in one?
Thanks to the following for the animations:
•http://faculty.gvsu.edu/videticp/longshore.htm
•http://images.google.com/imgres?imgurl=http://www.geo.hunter.cuny.edu/bight/im
ages/barrier.jpg&imgrefurl=http://www.geo.hunter.cuny.edu/bight/beach.html&h=4
80&w=640&sz=32&tbnid=4cEB1CyCDXHC5M:&tbnh=103&tbnw=137&prev=/images%
3Fq%3Dbarrier%2Bislands&start=3&sa=X&oi=images&ct=image&cd=3
•http://www.ripcurrents.noaa.gov/science.shtml