Term
| Why are tides shallow water waves? |
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Definition
| The sun creates smaller tidal bulges than the moon. |
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Term
| What causes the earth's tidal bulges? |
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Definition
| Gravitational pull of the moon and sun on ocean water |
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Term
| What/ when are the phases of the moon and how do they relate to tidal patterns? |
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Definition
Full
Waxing Gibbous
First Quarter Half moon
Waxing crescent
new moon
waning crescent
third quarter half moon
waning gibbous |
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Term
Diurnal
1 hi 1 low daily
Gulf Coast |
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Definition
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Term
Mixed
Uneven
2 hi, 2 low daily
Pacific Coast |
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Definition
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Term
SemiDiurnal
2 hi 2 low
Atlantic Coast |
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Definition
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Term
| How long is a lunar day/ tidal cycle? |
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Definition
24 Hours and 50 minutes
The moon rises 50 minutes later eachday |
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Term
| What and when are the Spring tides? |
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Definition
During Earth-Moon-Sun alignment (syzygy) sun and moon gravitational pulls are additive: causes higher high tides and lower low tides
= SPRING TIDES (during full moon and new moon) |
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Term
| What and when are the Neap tides? |
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Definition
During 90o arrangement of Earth-Moon-Sun (quadrature),lower high tides & higher low tides
= NEAP TIDES (during half moons) |
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Term
| What are ebb and flood tides? |
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Definition
Flood tide= rising
Edd tide= sinking |
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Term
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Definition
| Tides also move up rivers (100’s miles): If tide strong enough and river flow weak enough, get a visible wave |
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Term
| Where do we see the greatest tidal ranges and why? |
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Definition
| At the bay of fundy due to the funnel shaped coast. |
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