ian4366691
I live in Auckland New Zealand and have young children that I like to take them to the beach to swim and play.
I have started checking high tide times and noticed a relationship between the high tide times of the two harbours that form the isthmus that Auckland city is built on.
A small sample shows that the high tide on the Manukau harbour (opens to Tasman sea) lags the Waitemata harbour (Pacific Ocean) by an average of 3 hours and seven minutes. This is very close to a quarter of the peak to peak high tide period.
Being an isthmus (less than 2KM wide at the narrowest point) it seems logical to build a pair of tidal power stations, one in each harbour. They could easily be connected to a common sub-station. When either was at slack tide minimum, the other would be in the middle of peak flow. This may be a crazy idea but it seems like a geographic gift. Does anyone have any comments?
I wonder if there are similar conditions near other cities.
Is it likely that the phase difference will change significantly, in winter for example?
I have started checking high tide times and noticed a relationship between the high tide times of the two harbours that form the isthmus that Auckland city is built on.
A small sample shows that the high tide on the Manukau harbour (opens to Tasman sea) lags the Waitemata harbour (Pacific Ocean) by an average of 3 hours and seven minutes. This is very close to a quarter of the peak to peak high tide period.
Being an isthmus (less than 2KM wide at the narrowest point) it seems logical to build a pair of tidal power stations, one in each harbour. They could easily be connected to a common sub-station. When either was at slack tide minimum, the other would be in the middle of peak flow. This may be a crazy idea but it seems like a geographic gift. Does anyone have any comments?
I wonder if there are similar conditions near other cities.
Is it likely that the phase difference will change significantly, in winter for example?