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46 Cards in this Set
- Front
- Back
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What is the littoral zone? |
Where the land meets the sea |
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What is a berm? |
A flat area of sediment created by the tides. |
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What is nearshore? |
It is the submerged part of a beach |
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Foreshore |
The area covered during high tide and exposed during low tide |
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What is backshore? |
first wind blown sand dunes to high tide |
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During the winter is a berm large or narrow? |
Narrow |
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During the summer is a berm large or narrow? |
large |
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During the winter are the waves gentle or rough and what does that produce? |
Rough Longshore bar |
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During the summer are the waves gentle or rough and what does that produce? |
gentle Larger berm |
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What causes a spring tide? |
Moon and sun aligned (Combining their gravitational pull) |
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What causes a neap tide? |
The moon and sun being at a right angle from the earth. |
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How is a tsunami created? |
Vibration from an underwater earthquake |
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Which pull is stronger, the sun our the moon? |
The moon. |
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How many neap tides and how many lunar tides are there every month? |
2 neap 2 lunar |
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What force drives a tidal wave? |
The tides, duh |
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Describe the positive feedback that occurs within wave formation |
Wind> Friction with water> Ripple> Increase friction> Wave> Increase friction> Bigger wave |
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How do the water particles move? |
rotation migrating upward |
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How is a wave of transition made? |
From water's upward and rotational movement |
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How is a wave of translation created? |
As water makes contact with the shore and begins moving horizontally |
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What factor influences how big the rotation of water molecules are? |
Depth Deeper= smaller |
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How deep do you have to go for the rotation to stop moving? |
1/2 mile |
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What is the point in which wave motion is half of what it is at the top of sea level? |
wave base |
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What happens to land that sticks out more? |
It gets eroded faster |
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What happens to wave speed in shallow water? |
decreases |
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Diverging waves are where? (Spreading) |
In bays |
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Converging waves are where (clashing) |
landmass sticking out |
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What is the top of a wave called? |
Wave crest |
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What is a sea arch? |
Sections of headlands that survive as islands and have a penetrated base |
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What is a sea stack? |
A column of headland that stands alone |
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Sea cliffs |
Areas eroded by waves creating a steep face |
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Sea caves |
Weaker parts more heavily eroded in a sea cave |
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Wave cut platform |
An platform at the bottom of a sea cliffs. (Heavy sediment) |
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Horizontal barriers to stop flow and beach build |
Groins |
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Vertical barriers to stop flow and beach build |
Breakwater |
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Parallel barriers that interrupt flow and beach build |
Jettie |
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Overtime do coastal houses last? |
No |
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Is beach property good for construction or recreation |
Bad for construction Good for recreation |
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Are primary dunes good for construction or recreation |
No No |
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Are troughs good for recreation or construction? |
limited recreation Limited construction |
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Are secondary dunes good for construction or recreation |
No No |
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Is a backdune good for construction or recreation |
Yes Yes |
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Is a bayshore good for construction or recreation |
No No |
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Is a bay good for construction or recreation? |
Hella recreation |
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What can cause the ground to rise? |
Previous glacier could've pushed it down and it is rising under low pressure |
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When does the littoral zone extend most? |
during a storm |
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How much lower was the sea level 100 years ago |
10cm |
