成山头外潮流能初步估算

Preliminary Assessment of Tidal Current Energy on Chengshantou Area

应用短期潮流调和分析方法,对成山头外一定点连续观测站的潮流数据进行分析,计算了O1,K1,M2,S2,M4,MS4 6个主要分潮潮流调和常数及椭圆要素,分析了成山头外海区潮流的变化特征,通过潮流预报计算了该海域的潮流功率密度。结果表明:基于调和分析的潮流预报流速与实测流速吻合良好;成山头外海域表层、中层、底层的潮流平均功率密度分别为327 W/m2,219 W/m2,115 W/m2,垂向平均的平均功率密度为225 W/m2,该海域的潮流能理论蕴藏量为1.77×107 W。

Appling the tidal current harmonic method for short term data, the tidal current characteristics at a station anchored near the cape of Chengshantou are analyzed. The current harmonic constants of O1,K1,M2,S2,M4,MS4 tidal constituents and ellipse constituents have been computed. The density of tidal current power in this area is calculated according to tidal forecast. The results show that the forecast of tidal current based on harmonic method is consistent with investigation data well. The averaged density of tidal current power of top layer, middle layer and bottom layer are 327 WAn2, 219 WAn2 and 115 WAn2. The averaged vertical density of power is 225 WAn2. The power of this area is 1.77×10^7W theoretically.