南黄海西部中层冷水垂直热结构的自模性  

Self-simulation of Vertical Thermal Structure for the Intermediate Cold Water in the West of Southern Huanghai Sea

作　　者：徐伯昌[1] 王宗山[1] 邹娥梅[1] 廖启煜[1] 

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266061

出　　处：《黄渤海海洋》2001年第3期1-7,共7页Journal of Oceanography of Huanghai & Bohai Seas

基　　金：国家自然科学基金资助项目 (4 98760 0 5 )

摘　　要：利用在水温垂直剖面无因次自模函数研究海洋垂直热结构方面的经验 ,对含中层冷水垂直热结构海水水温的正、负梯度层 ,提出了 2种无因次温度和深度表达式 ,然后利用实测资料按单站和整个研究海区分别拟合了自模函数θ =f(η)。回算检验结果表明 ,用上述自模函数回算水温的平均均方误差均小于 0 .1 5℃ ,证明了含中层冷水的垂直热结构亦存在自模性 ,所提出的无因次经验表达式具有可靠性 ,纠正了认为自模函数的建立仅适用于单跃层结构的观点 。In this paper, two expressions of non dimensional temperature and depth are proposed for the positive and negative temperature gradient layers of intermediate cold water, based on the experience in studying vertical ocean thermal structure using non dimensional self simulation function of vertical temperature profile. The observed data are then used to fit the self simulation functions θ=f(η) for the individual stations and whole study sea area, respectively. The hindcasting results show that the root mean square errors of temperature were all less than 0.15 ℃, which proves the vertical thermal structure of intermediate cold water being of self simulation and the reliability of non dimensional expression constructed for the intermediate cold water. It also corrects the viewpoint of the established self simulation function being suitable only to single thermocline, and provides experimental basis for further establishing the numerical prediction model for the vertical thermal structure of intermediate cold water in the Huanghai Sea.

关 键 词：中层冷水 垂直热结构 无因次模式 自模性 黄海 水温 

分 类 号：P731.31[天文地球—海洋科学]