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本文根据国家海洋局1975—1979年标准断面调查资料,对东海陆架区出现的温、盐度逆转现象进行定义和划分;通过统计分析得出,在东海陆架区出现两个逆转现象高频海区,一个位于江苏、浙江近海和外海的一狭长海域内,另一个位于济州岛以南和以西海域。通过对逆转现象成因的讨论认为,前者高频区主要是由于几个不同水团的叠置、交汇、相互作用的结果;由于气旋型涡旋的存在和黄海暖流水附近冷水块的出现而伴生的海水上升运动是导致后者高频区的因素。
Based on the data from the standard section of State Oceanic Administration from 1975 to 1979, this paper defines and divides the temperature and salinity reversal phenomenon in the East China Sea shelf area. According to the statistical analysis, we can see that there are two high frequency sea areas in the East China Sea shelf area, One is located in a narrow sea near the sea and the outer sea in Jiangsu and Zhejiang Province and the other is located in the south and west of Jeju Island. Based on the discussion of the causes of reversal phenomenon, the former high frequency region is mainly due to the superimposition, convergence and interaction of several different water masses. Due to the existence of cyclonic vortex and the occurrence of cold water blocks near the Yellow Sea warm water, The rising seawater movement is the cause of the latter high-frequency zone.