夏季季风转换期间中沙群岛附近海域的温盐分布特征  

Analyses on Temperature and Salinity Distributions in ZhongSha Islands Waters During Spring to Summer Monsoon Transition

作　　者：黄磊[1] 高红芳[1] 

机构地区：[1]广州海洋地质调查局

出　　处：《南海地质研究》2012年第1期49-56,共8页Gresearch of Eological South China Sea

基　　金：中国地质调查局项目资助(1:100万中沙群岛幅海洋区域地质调查,编号:GZH200800502)

摘　　要：对2009年5月中沙群岛附近海域的水文观测资料，运用垂向梯度法，计算了中沙群岛海区温度及盐度两种跃层所处的深度及各自的厚度和强度，并进行了相应的分析。结果表明，夏季风转换期间海洋表、底层温度分布南高北低，表、底层盐度分布较为均匀；垂直结构上温度跃层比较稳定，无逆跃层出现；盐度跃层基本为单跃层，但在研究区南部混合层以下出现两种盐度异常水体。Based on the data collected during an investigation in the Zhongsha Islands in May, 2009, using vertical grads method in thermocline and halocline calculation and discussed the characteristics of the transition layer. The results show that the temperature of sea water was higher in south area and the salinity of sea water is relatively equality during spring to summer monsoon transition. The vertical temperature stratification was stable and not existed temperature inversion. Almost vertical salinity stratification was single halocline, but two types of the abnormal saline water were found under the mixed layer in the south part of the Zhongsha islands.

关 键 词：季风转换 温跃层 盐跃层 盐度异常 

分 类 号：P736.211[天文地球—海洋地质]