Transcript Template # 1

Going to
the
Beach?
Instructions on Completing Activities for the
Coastal Geomorphology Laboratory
Activity 1: Analyze sea cliff loss
Task 1: Calculate erosion along the Suffolk
coastline in the U.K. using ground survey
SUBMISSION IS ADVANCING AT A
FRIGHTFUL SPEED
1 meter per flag
Task 1: Calculate erosion along the Suffolk
coastline in the U.K. using ground survey
• Finish
table
• Calculate
erosion
rates
Task 2. Analyze change in a coastal landslide
using aerial photography
Looking east
Task 2. Analyze change in a coastal landslide
using aerial photography
Bluff (small cliff)
retreat from
landsliding:
how fast? how
much?
Task 2. Analyze change in a coastal landslide
using aerial photography
Task 2. Analyze change in a coastal landslide
using aerial photography
Analyze 1976 and
1995 and then answer:
how much farmland
has been lost (sq.
meters) and how fast?
1. Download these
files from the web
page version of the
assignment
2. Print ’76
Task 2. Analyze change in a coastal landslide
using aerial photography
Analyze 1976 and 1995 and
then answer: how much
farmland has been lost (sq.
meters) and how fast?
1.
2.
3.
4.
5.
Print ’76
Color lost farmland
Make 10 m grid
Count up lost area
Measure biggest distance
lost & calculate rate of
retreat
Task 3. Analyze change at Point Reyes
using a historical map
Task 4. Compare rates of cliff retreat
Activity 1: Task 5 Calculating very long-term
rates of cliff retreat using offshore rocks and
sea stacks
Approx. last
major glacial
event
~6000 Ybp
Pretty close
to today…
Sea level change curves
Activity 1: Task 5 Calculating very long-term
rates of cliff retreat using offshore rocks and
sea stacks (10 points)
Activity 1: Task 5 Calculating very long-term
rates of cliff retreat using offshore rocks and
sea stacks
Overview of Activity 2
You study change in depositional (beach)
contexts, using a mixture of maps, aerial
photography, and satellite images.
Activity 2
• Task 1. Analyze human modification of
California beach: Humboldt Bay
• Task 2. Analyze change accomplished by
major storms
– Study the effect of Hurricanes on the Dauphin
Island (a barrier island)
Task 1. Analyze human modification of
California beaches
You analyze Humboldt Bay
Task 1. Analyze human modification of
California beaches
You analyze Humboldt Bay… add Jetties
Task 2. Analyze change accomplished by
major storms
Task 2. Analyze change accomplished by
major storms
Draw out the
area lost,
using
scale