A Statistical Method of Wind Field Based on the Form of Energy and Its Application in Bohai Bay Water Exchange

The conclusion has been generally accepted by the people that wind has an significant impact on the water exchange. But the amount of data is too large. So we must find a better method to resolve this situation. Some typical cases were set up, and using numerical methods the different influence of wind parameters on the water exchange were analyzed. The simulative results showed that the wind direction is the key factor whether the water exchange would be affected by the wind; the wind speed is related to the speed of water exchange; and the period has a little effect on the water exchange to some degree. By using the conclusion above, a effective method was obtained to deal with these large amounts of data. The wind data was homogenized at different time scales on the form of energy, and then the data was used to simulate the water exchange in the Bohai bay. The final results showed that the process of water exchange by using the month energy wind and the season energy wind separately is very close to the process by using the real wind.