Tides (AQA A-Level Geography): Flashcards
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Practise the cards
10 cards from this deck
Cause of tides
Cause of tides
Gravitational pull of Moon & Sun
Why Moon > Sun for tides
Why Moon > Sun for tides
Moon closer to Earth despite Sun's larger mass
When spring tides occur
When spring tides occur
New & full moon when Sun-Moon-Earth align
Spring tide tidal range
Spring tide tidal range
Highest monthly tidal range
When neap tides occur
When neap tides occur
Moon at 90° to Sun-Earth line
Neap tide tidal range
Neap tide tidal range
Lowest monthly range, 10-30% lower than average
Macrotidal coast range
Macrotidal coast range
Greater than 4 metres
Mesotidal coast range
Mesotidal coast range
Between 2 and 4 metres
Microtidal coast range
Microtidal coast range
Less than 2 metres
Tidal surge causes
Tidal surge causes
Strong winds & low pressure from storms