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Shoreline & Coastal Processes
This is what’s left of the trestle for the Santa Cruz - Garfield Park and
Capitola Electric Railway. The old wooden posts typically show up in
the winter time as big waves erode the sand.
Cabrillo College Ocean 10
Shoreline & Coastal Processes
Orders of Control of Global Coastal Landforms?
(beaches, cliffs, dunes, estuaries, mountains etc.)
1. Plate Tectonic Setting (examples on next few slides)
2. S.L. Changes (Glaciouestatic)
3. Storms, waves, tides, longshore transport
etc….
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Uplift + Glacioeustatic Sea Level Changes
Cabrillo College Ocean 10
Winter Storms, Waves, Tides
Shoreline & Coastal Processes
Orders of Control of Global Coastal Landforms?
(beaches, cliffs, dunes, estuaries, mountains etc.)
1. Plate Tectonic Setting (examples on next few slides)
2. Glaciouestatic S.L. Changes
3. Storms, waves, tides, longshore transport
etc….
• COAST: A region of land that extends
from the ocean to the first major physical
feature that is unaffected by marine
processes.
• SHORE: The area that extends from the
lowest tide level to the farthest limit of
wave influence, ever.
• BEACH: A depositional environment that
occupies all or a portion of the shore.
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January 8th 2008
January 20th, 2010
Capitola Wharf, January 8th, 2008
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East Cliff Drive at Corcoran Lagoon / Santa Mo’s Jan 22, 2016
Capitola early March 2014
sent from Brazil
East Cliff Drive at Corcoran Lagoon / Santa Mo’s Jan 22, 2016
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Bodega Bay, CA
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Aerial view of South Padre Island on the Texas Gulf Coast. Laguna
Madre is on the left, and the Gulf of Mexico is on the right.
1. ANATOMY OF THE SHORE
ENVIRONMENT
2. SUMMER VS WINTER
BEACH PROFILES
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Capitola West - Fall 2007
120
100
80
60
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
-200
84
82
80
78
76
74
72
70
68
66
64
62
60
58
56
54
52
50
48
46
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
8
12
6
4
10
2
-220
0
Beach Height (cm)
40
Beach Width (m)
26-Se p-07
24-Oct-07
19-Nov-07
4-De c-07
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Winter Beach Profile
Irregular shaped shorelines
tend to change to
straight shorelines.
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Construction begins on the Palo Alto as an oil tanker by the San Francisco
Shipbuilding Company and was launched on May 29, 1917.
•
Construction begins on the Palo Alto...
The Palo Alto stayed on the dock in Oakland for ~10yrs until she was purchased by the
Seacliff Amusement Co of Nevada in 1929. Then she was brought to Seacliff State
Beach as an amusement craft in 1930; an arcade, dance hall, dining room and
swimming pool were built. Front half of ship closes in 1958, ship closes after storms of
1978, damages again in 1982 and 1983.
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