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The Tides and their Causes

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Mark Van Arsdale

on 4 December 2017

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Transcript of The Tides and their Causes

Tidal Power
Tides spinning turbines hydro-power with out the dam (or the river)
The Tides are Caused by the Interactions of the Moon, Sun, and Earth
Gravity has a powerful affect, the moon's gravity more than the sun, because of its much closer proximity
Geography also has an effect on the tides
Harsh conditions, constantly changing salinity, temperature, wave action
Spring Tides and Neap Tides
Spring tides are the highest highs and the lowest lows
Diurnal, Semi-diurnal, Mixed Tides
Diurnal tides - one high, one low, each day
The Tides
Neap tides are the weak tides, with less change between high and low
Semi-diurnal tides - two highs, two lows, each day, (almost)
Mixed tides - two high, two low, but the highs and lows are uneven
Reading the tides: What kinds of tides does Anchorage have?
Inter-tidal Zonation
Neap not nee!
Full transcript