关于跃层深度确定方法的探讨  

ON THE METHODS OF DETERMINING THE DEPTHS OF THERMOCLINE, HALOCLINE AND PYCNOCLINE

作　　者：吴巍[1] 方欣华[1] 吴德星[1] 

机构地区：[1]青岛海洋大学物理海洋实验室,物理海洋研究所,青岛266003

出　　处：《海洋湖沼通报》2001年第2期1-7,共7页Transactions of Oceanology and Limnology

基　　金：国家重点攻关项目!(批准号:97-926-05-02);国家自然科学基金!(批准号:49976002);国家高等教育博士点研究基金!(批准号:98042

摘　　要：本文针对不同类型的资料，对确定温跃层、盐跃层和密度跃层深度的几种方法进行了较为细致地比较和讨论。文章表明，采用不同的资料分析方法所得的跃层深度存在差异。在采用高精度资料进行跃层分析时应滤掉小尺度变化所带来的影响。分析方法的选取应根据研究目的和拥有资料情况来决定。在采用垂向梯度法进行跃层分析时，要注意深浅水交界处跃层分析的连续性问题。By using different kinds of data, several analytic methods for determining the depths of thermocline, halocline and pycnocline are compared in detail. It shows that the depths which are obtained by using different data analysing methods are different. If the data was of high precision for analysing thermocline, halocline and pycnocline, the influence from small scale variations must be filtered. The analysing methods should be chosen according to specific research purposes and the situation of the data to be used. If the improved vertical gradient method is used to analyse thermocline, halocline and pycnocline, continuity must be guaranteed in regions where shallow water and deep water meet.

关 键 词：温跃层 盐跃层 密度跃层 CTD资料 Levitus资料 垂向梯度法 

分 类 号：P731.24[天文地球—海洋科学]