【摘要】 本文分析了台湾海峡西部海域水温、盐度分布特征,结果表明:本海区温、盐度分布具有明显的季节性变化。冬季浙闽沿岸水南下,可影响到广东南澳,流经台湾岛北部的黑潮分支在东北风作用下,转向西南可影响到海潭岛东部远岸区,该季节温、盐度低,垂直分布均匀。夏季经由巴士海峡来的黑潮水进入本海区,温、盐度普遍升至最高,近岸区海水层化现象明显,海区中部水平分布均匀。南日岛至海潭岛北部近岸区和古雷头东部远岸区各有一个上升流区,南澳岛至台湾浅滩有一个宽约半个纬距的西北-东南向的高温低盐带。更多还原

【Abstract】 There is a marked seasonal variation of sea temperature and salinity (S & t) in western Taiwan Strait which is dominated by the coastal waters of Fujian and Zhejiang, a branch of Kurioshio and the water of South China Sea in addition to radiation of sun and runoff. In winter, the coastal water of Fujian and Zhejiang invades Southward the region of Nan’ao Island and the branch of Kurioshio through north Taiwan turns southwesterly under the effect of northeaster which exerts an effect on the eastern offshore of Haitan Island. Low S & t and their uniform vertical distribution are chief characters of the western strait in winter, In summer, due to the invasion of the Kurioshio through the Bashi Channel, the value of S & t reach maximum in a year and the coastal stratification becomes marked, but accompanying with a uniform horizon distribution S & t in the middle of the Strait. There is upwelling at the coastal area between Nanri Island and north Haitan Island which enlarges. strengthens and moves shore ward from spring to summer. Another upwelling is situated offshore Guleitou, which presents an uniform vertical distribution of t & S, Also, in this season, there is a NW-SE zone of hight t and low S between Nan’ao Island and Taiwan Bank, which extends nearly in a half latitude.更多还原