2005年7月台湾海峡西南部海域的上升流与冲淡水观测

Observation of upwelling and diluted water in southern Taiwan Strait during July,2005

根据2005年7月台湾海峡西南部海域CTD观测数据,绘制出相关温盐分布图,分析了调查期间该海域的温盐分布特征。结果表明,调查期间东山海域、南澳海域以及台湾浅滩东南侧海域存在明显的上升流现象;在近岸上层,一股较强的冲淡水从西南部进入该海域并影响至台湾浅滩。

Based on the CTD data of the southern Taiwan Strait obtained during July 2005, the sectional distributions of temperature and salinity in the studied area were drawn and analyzed. The results showed that： （1） upwelling appeared near the coastal areas of Dongshan and Nan＇ao and around the Taiwan Bank; and （2） in the upper layer, fresh water came from the southwest and tongued into the investigated area, affecting the Taiwan Bank.