A method of determining dominant wave direction from multipara-meter hydrological gauge measurements and its application

Multi-parameter hydrological gauge is an instrument developed by the South China Sea Institute of Oceanology, the Chinese Academy of Sciences to make simultaneous observation of current, wave, tide, water temperature and conductivity. By using the well-known ＂PUV method＂, the directional wave spectrum can be calculated and the dominant wave direction is then obtained. The comparison of the dominant wave directions derived from the measurements using both the multi-parameter hydrological gauge and the MARK Ⅱ ＂Wave-Rider＂ directional buoy shows that the dominant wave directions derived from the two kinds of measurements are in good agreement.

海洋水文多参数测量仪确定主波向的方法和应用

海洋水文多参数测量仪是南海海洋研究所新研制的一种可以同步测量海流、波浪、潮位、水温、电导率的仪器,利用同步观测压力和矢量流速估计海面方向谱的方法(PUV方法)可以计算得到海面方向谱,进而求得主波向。利用该仪器现场实测数据与荷兰MARKⅡ型“波浪骑士”方向浮标观测资料进行对比分析,表明两者的主波向吻合性好。