GRAND ISLAND NORTH, MI - 268 Classic View
The total energy in all bands less than the 10 seconds cut-off period (the sea), is plotted in green, and the total energy in all bands greater than the cut-off (the swell) is plotted in blue for each run (30 minute file).
Hs = Significant Wave Height
Tp = Peak Period
Dp = Peak Direction
Ta = Average period