14A_1 – Slide 1
Topic 14A:
Cabrillo ASA
Online Lecture:
Cabrillo ASA
14A_1 – Slide 2 Cabrillo Beach Area
Photographs above: copyright (C) 2002-2006 Kenneth & Gabrielle Adelman,
California Coastal Records Project, www.Californiacoastline.org
14A_1 – Slide 3 Wetlands: High Tide & Low Tide
A
B
14A_1 – Slide 4 Life in Wetlands
USGS
14A_1 – Slide 5 Destruction of Wetlands, Benefits of Wetlands
NOAA
Development
“Nurseries”
“Filtering”
14A_1 – Slide 6 Where are the waves larger?
Outside the Harbor
Inside the Harbor
14A_1 – Slide 7 The Breakwater
Breakwater
Groin
Waves tend to push sand off toward deep water
14A_1 – Slide 8 Wave Refraction
14A_1 – Slide 9 Life on a Sandy Beach
14A_1 – Slide 10 The Sandy Beach & the Groin
Photographs above: copyright (C) 2002-2006 Kenneth & Gabrielle Adelman,
California Coastal Records Project, www.Californiacoastline.org
Beach
Gro
in
Sand
14A_1 – Slide 11 Sediments from Cliff Erosion
Part 2 will address
the “Marine Life
Refuge” question.
14A_1 – Slide 12 Storm Drains & Beach Closures
14A_1 – Slide 13
Preventing
Cliff
Erosion
Pipes
Tarps
Nets
14A_1 – Slide 14 Cliff Erosion I
14A_1 – Slide 15 Waves & the Spanish Wall
14A_1 – Slide 16 Cliff Erosion II
14A_1 – Slide 17
Sediments on
a Rocky Beach
14A_1 – Slide 18 Tides I
14A_1 – Slide 19 Tides II
sediments near cliff
sediments near water
14A_1 – Slide 20 Layers in the Cliffs I
14A_1 – Slide 21 Layers in the Cliffs II
Layers
Coastal
Cliffs
FaultUplift
Rivers
and Runoff
Layers