台湾近海的温、盐垂直结构与t－S图解类型

Types of Vertical Structure of Temperature and Salinity and of t-S Diagram in the Offshore Waters of Taiwan

本文根据我国台湾海洋工作者的调查分析资料，对台湾近海的温、盐垂直分布及ｔ－Ｓ图解特征进行分析，按其相似性特点进行归类和分型，并探讨它们的特点和异同之处。主要结果如下：１．冬、夏季台湾近海的温、盐垂直分布类型有５种，ｔ－Ｓ图解类型为９种。２．冬季台湾近海的水温垂直分布存在着一层、二层、三层结构，夏季多为三层结构；冬、夏季的盐度垂直分布为二层和三层结构。３．台湾西南、南和东北近海，ｔ－Ｓ图解类型复杂，出现多种类型交错。４．夏季台湾南端的猫鼻头、鹅銮鼻沿岸附近，其温、盐垂直分布皆出现上均匀层，此现象实属少见。

Based on the observational and analytical data from oceanographers in Taiwan of China,the vertical distribution of temperature(t)and salinity(S)and the features of the t-S diagram in the off shore waters of Taiwan are analysed in this paper.Meanwhile,they are class fied into different types according to the features of their similarities,and the characteristics of the different types and their similarities and differences are also discussed.The main results are as follows:(1)There exist six types of the vertical distribution of t and S and nine types of t-S diagram in the offshore waters of Taiwan in winter and summer i(2)The vertical diStributions of t shows onelayered,a two-layered and a three-layered structures,respectively,in these waters inwinter and mostly a three-layered structure in summer. the verical distributions of S display a two-layeredand three-layered Structures in winter and summer,respectively;(3) The types of t-S diagram are complicated and crisscrosses of the vertical types occurred in the offshore waters southwest,south and northeast of Taiwan;(4)In summer an upper homogeneous layer occurs in all the vertical distributions of t and S in the off shore waters of Maobitou and Eluanbi.Such a kind of phenomenon occurs very Seldom.