| Based on the real-time wave observation data of buoys 1# and 2 # in the coastal area of Tangshan from April to November 2017 and some wind speed and wind direction data, this paper makes statistical analysis on the wave parameter characteristics such as effective wave height, effective wave direction and effective wave period in the coastal area of Tangshan, and studies the correlation between wave parameters and wind speed and wind direction by using Origin software. The results show that the normal wave directions of buoys 1# and 2 # are SSW, SW and SSE. The effective wave height in the normal wave direction is dominated by small waves of 0.2-0.4 m and short periods of 3-4 s, and large waves with effective wave height above 1m rarely occur; The waves in the sea area are mainly wind waves. The wave breaking speed is fast. The effective wave height has strong correlation with the wind speed, and the correlation coefficient r is 0.71. The wind direction has no correlation with the wave direction, and the effective wave height has no correlation with the period. The research data can provide technical basis for marine activities and disaster prevention and reduction. |
