1998年8月台湾海峡表层叶绿素a含量的分布特征

DISTRIBUTION FEATURES OF SURFACE Chlorophyll a IN TAIWAN STRAIT IN AUGUST, 1998

根据1998年8月台湾海峡表层温度、盐度、叶绿素a的走航式观测结果 ,讨论了调查期间叶绿素a的分布特征。结果表明 ,夏季台湾海峡存在明显的上升流现象 ,表层较高的叶绿素a含量均位于低水温区。表层叶绿素a最大值出现在上升流区的边缘。作者认为这是上升流中心区与边缘区浮游植物的大量繁殖具有一定的“时间差”的缘故。台湾海峡24°N以南及以北海域 ,由于上升流强度的差异 ,表层叶绿素a的分布变化也明显不同。夏季 ,台湾海峡表层叶绿素a含量呈南高北低的趋势。

： Vertical distribution features of chlorophyll a were discussed according to the CTD data obtained in the Taiwan Strait in August, 1998. The results showed that the high chlorophyll a values were situated upwelling water in the western part of Taiwan Strait. The chlorophyll a maximum were near the thermocline of upwelling in Taiwan Strait. The chlorophyll a values in the western part of Taiwan Strait was higher than that in the eastern part due to strong upwelling in the western part of Taiwan Strait.