西太平洋副热带高压的变动对我国赤潮发生的影响分析

Impact of the West Pacific subtropical high on the red tide in the China seas

根据1933—2012年间我国海域赤潮发生的相关记录和数据,分析了西太平洋副热带高压对我国海域赤潮发生的影响,赤潮多发区集中在西太副高北界和地面锋区带海域。3大海区赤潮发生次数与西太副高的相关程度不同:东海>渤、黄海>南海。西太副高偏强、位置异常偏西、脊线偏南年份东海赤潮发生次数会偏多,渤、黄海赤潮发生次数会偏少。反之,西太副高偏弱、位置异常偏东、脊线偏北年份东海赤潮发生次数会偏少,渤、黄海赤潮发生次数会偏多。

The Western Pacific subtropical high has great influence on red tide in the china seas. The impacts of the Western Pacific subtropical high on the red tide are different in the three sub-regional seas, the East China Sea〉Bohai and the Yellow Sea〉South China Sea. During the years when West Pacific Subtropical High is stronger, location is abnormally further west, and ridge line is located further south, the East China Sea is with higher frequency of red tide occurrence, while both the Bohai and Yellow Sea are with lower frequency of red tide occurrence.