摘要
以南海夏季不同深度层次的各站位的温度、盐度、pH、O2、硝酸盐、亚硝酸盐、铵、磷酸盐、硅酸盐等水化学参数作为变量,实施Q型多维聚类分析。聚类分析结果表明,在垂直方向上,南海的水团可划分为南海表层水、南海次表层水、南海中层水、南海深层水和南海深海盆水等5种类型。聚类分析结果与温盐点聚图解所得的结论完全一致。南海夏季调查的多维聚类分析及T-S点聚图一致表明,南海的海水有着良好的成层结构,自海面至海底的水体运动自然形成了化学性质各异的五个水团。
On the base of the variable parameter of the south china sea such as T,S,pH,O2 , O2%, NO3--N, NO2N, NH4+-N, PO43--P, and SiO32--Si,the Q-type clustering analysis is computed. The result of clustering analysis show that the water masses in the south china sea in upright direction can be divided into five types including the surface layer water, subsurface water, middle-level water,deep level water and deep basin water. The result of clustering analysis go all the way with the diagram of temperature and salinity and both show the facts that the water of south china sea have stratification structure and formed the five different kinds of water masses different chemically are formed.
出处
《海洋湖沼通报》
CSCD
2002年第4期1-6,共6页
Transactions of Oceanology and Limnology
基金
"我国专属经济区和大陆架勘测"(HY126-04-2-02)
国家海洋局科技项目
关键词
夏季
南海
水团
垂直分布
聚类分析
温度
盐度
PH值
Vertical distribution of water masses
South China Sea
clustering analysis
