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Laabri

Coastal Erosion

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Last updated about 6 years ago
8 Nsɛmmisa
Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

Coastal erosion - geography A level

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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

A definition of coasts is

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2.
Draggable itemarrow_right_altCorresponding Item

Destructive wave

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Maximum distance wind blows over the sea

Fetch

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The incoming wave, comes in at the same angle the wind blows

Swash

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The wave that returns to the sea, always at 90 degrees due to gravity

Backwash

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Builds up the beach as the swash has energy to bring in sediment, but the backwash is weak so it gets left behind.

Contructive wave

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Removes sediment from a beach as the backwash is strong enough to entrain particles and return them to the sea.

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Constructive waves have a short wave length

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4.

Constructive waves have a short wave height

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5.

Destructive waves are more frequent than constructive waves

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6.

The trough is the top of the wave

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7.

Wave period is the time from trough to trough OR crest to crest

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8.

My Favourite subject is geography and I wish I had tons more work to do!