EPS 106A Problem Set 4 - Nina Fitch SID#17849531 3/18/08...

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Nina Fitch SID#17849531 3/18/08 Problem Set 6 1) for a wave function Acos(kx- ω t): -A represents the amplitude of the wave -the wavelength ( λ ) = 2 π /k which is a measurement of length from wave crest to wave crest -the speed (v or dx/dt) = ω /k -the frequency (f) = ω /2 π which is the number of oscillations per unit time (speed/wavelength) -the period (T) = 1/f =1/ ω /2 π = 2 π / ω
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3) Tidal/Shelf-Sea Fronts Pingree- The boundary between the mixed and stratified deep water is a front. Tidal fronts on the English channel are formed by the variation in speed of tidal currents between the spring and neap tides. When current increases during the spring tide event the shear between the nutrient rich, cold, deep stratified water and the warmer mixed surface water increases, which causes mixing. When the current decreases during neap tides the mixing is slowed and the front moves up into the mixed layer. The mechanism for turbulence in the front is due to frictional stress/ shear. Simpson-
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EPS 106A Problem Set 4 - Nina Fitch SID#17849531 3/18/08...

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