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黄海暖流源区附近温盐结构及其季节变化
胡 放1,2, 于 非1, 王建丰1,3, 司广成1, 李 昂1,2, 周文正1,2
1.中国科学院海洋研究所;2.中国科学院大学;3.国家海洋局海洋–大气化学与全球变化重点实验室
摘要:
为探究不同季节下黄海暖流在源区的状态, 利用韩国海洋数据中心(Korea Oceanographic Data Center)发布的水文数据, 对黄海暖流源区附近温盐结构及其季节变化进行了分析。结果表明: 年平均状态下对马暖流在济州岛东南存在向西向入侵的趋势, 其入侵存在明显的季节变化: 秋季最强, 冬、春季开始减弱, 夏季最弱。济州岛西侧, 约在33°30′N、125°30′E处存在一支伸向西北的高盐舌, 该高盐舌盐度同样具有明显的季节变化: 冬季最强, 春季开始减弱, 夏季降至最低, 秋季盐度开始缓慢回升。黄海区盐度的变化要滞后于对马暖流区盐度变化。冬季朝鲜沿岸水南下入侵程度最强, 能到达34°N 以南的位置。
关键词:  黄海暖流源区  对马暖流  季节变化
DOI:10.11759/hykx20150814001
分类号:
基金项目:国家自然科学基金(40776019, 41176018, 41306021); 国家海洋局海洋–大气化学与全球变化重点实验室开放基金课题(GCMAC1306);国家自然科学基金委员会-山东省人民政府联合资助海洋科学研究中心项目(U1406401); 国家自然科学基金委员会-创新研究群体科学基金(41421005)
Thermohaline structure and seasonal variation near the Yellow Sea Warm Current source region
HU Fang,YU Fei,WANG Jian-feng,SI Guang-cheng,LI Ang,ZHOU Wen-zheng
Abstract:
Historical hydrological data released by the KODC (Korea Oceanographic Data Center) were used to analyze the thermohaline structure and its seasonal change near the Yellow Sea Warm Current source region. The results showed that the westward invasion trend of the Tsushima Warm Current Water in the southeast of the Cheju Island peaks in autumn, begins to weaken in winter and spring and is weakest in summer. At the same time, a salty tongue appears west of Cheju Island (33°30′N, 125°30′E) all year round, and its salinity shows a lagging seasonal variation, which begins to rise in autumn, peaks in winter, weakens in spring and is weakest in summer. The southward intrusion of the North Korea Costal Water peaks in winter and can reach south of 34°N.
Key words:  the Yellow Sea Warm Current source region  the Tsushima Warm Current Water  seasonal variation
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