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15 Cards in this Set
- Front
- Back
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3 types of tides |
-diurnal -semidiurnal -mixed |
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Spring tide |
new/full moon, tidal range greatest, occur when sun, moon, and earth are aligned in a straight line |
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Neap tide |
quarter moons, tidal range least, occur when sun, moon, and earth form a right angle |
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Diurnal |
one high tide and one low tide per day |
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Semidiurnal |
two high tides two low tides per day |
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Mixed |
two high tides two low tides per day, tidal range different, most common |
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Node |
no vertical displacement |
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Cotidal lines |
connect points on the rotary wave that experience high tide at the same time |
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Corange circles |
lines connecting points that experience the same tidal range |
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Tidal range: |
increases outward from the node, increase is a bay tapers landward because water is funneled towards the basins narrow end |
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Tidal resonance |
if the period of the basin is similar to the tidal period, can greatly effect tidal range |
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Tidal bore |
wall of water that surges upriver with the advancing high tide |
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Flood current |
flow of water towards the land with the approaching high tide |
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Ebb current |
flow of water away from the land with the approaching high tide |
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Coastal Tidal Currents |
-flood current -reversing current -ebb current |
