2007年春季南黄海中层冷水特征及成因  

Characteristics and formation of the middle-layer cold water of the South Yellow Sea in the spring of 2007

作　　者：刁新源[1,2,3,4] 王建丰 魏传杰[1,3,4] 司广成[1,3] 于非[1,2,3,4] DIAO Xin-yuan;WANG Jian-feng;WEI Chuan-jie;SI Guang-cheng;YU Fei(Key Laboratory of Ocean Circulation and Waves,Chinese Academy of Sciences,Qingdao 266071,China;University of Chinese Academy of Sciences,Beijing 100049,China;Center for Ocean Mega-Science,Chinese Academy of Sciences,Qingdao 266071,China;Department of Engineering and Technology,Chinese Academy of Sciences,Qingdao 266071,China)

机构地区：[1]中国科学院海洋研究所环流与波动重点实验室,山东青岛266071 [2]中国科学院大学,北京100049 [3]中国科学院海洋大科学研究中心,山东青岛266071 [4]中国科学院海洋研究所工程技术部,山东青岛266071

出　　处：《海洋科学》2022年第4期1-12,共12页Marine Sciences

基　　金：国家自然科学基金项目(41176018,41206014);中国科学院战略性先导科技专项项目(A类)(XDA11020301)。

摘　　要：本文根据2007年南黄海的CTD调查资料,分析了南黄海中层冷水的10个示性特征及其分布特征,指出2007年春季中层冷水主要出现于35°N以北的海域,核心区主要位于50 m等深线附近,中心深度位于25~40 m,宽度约为100 km,厚度为10~25 m,跃变强度为0.04~0.14℃/m。对比分析冬季与夏季温度、盐度及实测海流资料,南黄海春季出现的中层冷水主要是黄海暖流、沿岸冷水以及春季表层升温等过程的综合作用结果。Based on the conductivity temperature depth(CTD)observations in 2007,10 characteristics of the mid-dle-layer cold water(MLCW)and their spatial patterns were determined.In the spring of 2007,the MLCW was observed to the north of 35°N.The core of the MLCW was near the 50 m isobath,and the center was located at a depth of 25–40 m with a thickness of approximately 10–25 m and a vertical gradient of 0.04–0.14℃/m.The comparison between temperature and salinity distributions from spring to winter and analysis of current observations showed that the MLCW was formed because of the combined effects of the Yellow Sea Warm Current,coastal cold water,and surface warming in the spring.

关 键 词：南黄海 中层冷水 示性特征 成因 

分 类 号：P72[天文地球—海洋科学]