大洋性次表层和中层水团隶属函数的拟合与应用  

Fitting Method and Application of Membership Function of Water Masses at Subsurface and Intermediate Layer in the Oceans

作　　者：李凤岐[1] 李曜[1] 谢骏[1] 

机构地区：[1]中国海洋大学环境科学与工程学院,青岛266003

出　　处：《青岛海洋大学学报（自然科学版）》2003年第6期833-840,共8页Journal of Ocean University of Qingdao

基　　金：国家自然科学基金 (4 0 2 76 0 0 9) ;高等学校博士学科点专项科研基金 (2 0 0 0 0 4 2 30 1 )资助

摘　　要：本文针对大洋性水团的 T- S曲线族特征 ,提出了拟合其隶属函数的 2种方法——直线定位法和坐标旋转法。把这 2种方法应用于拟合巴士海峡两侧的次表层高盐水团和中层低盐水团的隶属函数并进行了讨论。文中给出了拟合的原理、公式和实例 ,表明它们在分析水团的分布特征、混合变性过程 。Two new methods of fitting the membership function of oceanic water masses are presented according to the characteristics of T S curves family of oceanic water masses. The membership functions of oceanic Subsurface Water Mass with higher salinity and Intermediate Water Mass with lower salinity on both sides of the Bashi Channel were simulated by using the two methods and discussed. The principles, formulae and examples are given in this paper. It indicates that it is very useful in analyzing the distributional features and modifying process during mixing of these water masses, especially in tracing back to the sources of these water masses.

关 键 词：水团分析 物理海洋学 模糊数学 T-S曲线 隶属函数 

分 类 号：X145[环境科学与工程—环境科学] P738[天文地球—海洋地质]