Coastlines. I. Waves A. Wave anatomy I. Waves A.Wave anatomy B. Wave Erosion Corrosion, 2) Abrasion, 3) Hydraulic Action.

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Presentation transcript:

Coastlines

I. Waves A. Wave anatomy

I. Waves A.Wave anatomy B. Wave Erosion Corrosion, 2) Abrasion, 3) Hydraulic Action

I. Waves A.Wave anatomy B. Wave Erosion Corrosion, 2) Abrasion, 3) Hydraulic Action C. Wave Refraction & Longshore Currents

DEMO

I. Waves A.Wave anatomy B. Wave Erosion Corrosion, 2) Abrasion, 3) Hydraulic Action C. Wave Refraction & Longshore Currents D. Rip Currents

Rip currents

II. Beach Morphology A. The profile

B. Summer vs. Winter profiles

III.Shoreline Features A. Erosional

III.Shoreline Features A. Erosional 1. wave cut platforms

1. wave cut benches and sea cliffs

III.Shoreline Features A. Erosional 1. wave cut platforms 2. sea arches and sea caves

sea arch sea cave headland

2. sea arches and sea caves

III.Shoreline Features A. Erosional 1. wave cut platforms 2. sea arches and sea caves 3. sea stacks

3. Sea stacks

III.Shoreline Features A. Erosional 1. wave cut platforms 2. sea arches and sea caves 3. sea stack 4. fjord

fjord

III.Shoreline Features B. Depositional

III.Shoreline Features B. Depositional 1. Spit 2. Baymouth Bar

1. Spit 2. Baymouth Bar

Spits and Baymouth Bars

III.Shoreline Features B. Depositional 1. Spit 2. Baymouth Bar 3. Tombolo

III.Shoreline Features B. Depositional 1. Spit 2. Baymouth Bar 3. Tombolo 4. Barrier Islands

Cape Hatteras Cape Lookout

4. Barrier Islands

Hatteras Island between the villages of Hatteras (ahead) and Frisco

Aerial view of development in Kitty Hawk, N.C., on the Outer Banks.

IV.Emerging and Submerging Coastlines

Emerging

Submerging Estuaries

Submerging Salt water marsh

V.Coastal Erosion

1. groins

2. jetties

Jetties

3. breakwater

4. Sea wall

E. Beach Nourishment