| 南黄海西部2007年4月的逆温跃层 |
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| 引用本文： | 苏 劼,熊学军,刘 浩,卢德杰.南黄海西部2007年4月的逆温跃层[J].海岸工程,2017,36(1). |
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| 作者姓名： | 苏 劼 熊学军 刘 浩 卢德杰 |
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| 作者单位： | 1. 国家海洋局 第一海洋研究所,山东 青岛,266061;2. 国家海洋局 第一海洋研究所,山东 青岛 266061;青岛海洋科学与技术国家实验室 区域海洋动力学与数值模拟功能实验室,山东 青岛 266237;3. 中海石油深海开发有限公司,广东 深圳,518067 |
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| 基金项目： | 国家科技重大专项科研任务——南海北部内波流监测、预报、预警系统研究及应用，海洋工程装备科研项目——500米水深油田生产装备TLP自主研发-内波流预警方案研究及内波流监测系统研制，国家自然科学基金项目——黄海暖流的多时相特征及其发生机制研究，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——海洋环境动力学和数值模拟，全球变化与海气相互作用专项子课题——黑潮结构时空变化特征对中国近海环流的影响分析，全球变化与海气相互作用专项子课题——黑潮不稳定性及多核结构，国家重大科学研究计划——太平洋印度洋对全变暖的响应及其对气候变化的调控作用-热带太平洋印度洋海洋观测，海洋公益性行业科研专项——常用海底声纳测量仪器计量检测关键技术研究与示范应用，国家自然科学基金青年基金项目——东海黑潮三维结构及季节变化研究，国家重大科学仪器设备开发专项——自容式声学多普勒流速剖面仪开发 |
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| 摘 要： | 利用南黄海西部2007-04的温盐实测资料,采用海洋层结谱表达法及自适应识别,得到逆温跃层的"五点三要素",形成强度要素平面分布图.分析表明,逆温跃层的存在与黄海暖流水有直接的关系:1)4月份,黄海暖流水受到的海面冷却仍是产生逆温跃层的普遍原因,在该海区黄海暖流向北延伸和向两侧拓展的区域都有该种类型的逆温跃层存在,位置相对较浅;2)但在偏南的黄海暖流主干区,海面冷却产生的效应被主流区的热量补充所抵消,逆温跃层很弱甚至消失,这是该月份逆温跃层分布区向北退缩并在南部中心附近呈现缺失区的主要原因;3)南下的鲁北沿岸流水的冷水叠加在黄海暖流水的暖水上方,使逆温跃层加强,使得冷暖水的作用区成为强逆温跃层区;4)黄海暖流左侧冷沿岸流水及右侧冷水的前端向黄海暖流楔入,其前端往往覆盖在底层高温高盐的黄海暖流水上方形成下逆温跃层,从而形成双逆温跃层.这些特点,较以前认知更加客观、全面、细致和准确.
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| 关 键 词： | 海洋层结谱表达法及自适应识别 逆温跃层 黄海暖流 强逆温跃层 双逆温跃层 |
The Inversion Thermocline in the Western South Yellow Sea in April 2007 |
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| SU Jie,XIONG Xue-jun,LIU Hao,LU De-jie.The Inversion Thermocline in the Western South Yellow Sea in April 2007[J].Coastal Engineering,2017,36(1). |
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| Authors: | SU Jie XIONG Xue-jun LIU Hao LU De-jie |
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| Abstract: | The 'five points and three elements' of inversion thermocline are obtained and the horizontal distribution of strength factors is plotted by using the temperature and salinity data measured in the western South Yellow Sea in April,2007 and by means of the marine stratification spectrum representation and the adaptive recognition.The analysis indicates that the occurrence of the inversion thermocline in the werstern South Yellow Sea is directly related to the water of the Yellow Sea Warm Current: 1) The surface cooling that the water of the Yellow Sea Warm Current was subjected to in April is still the universal reason that causes the formation of the inversion thermocline.In the study area,such kind of inversion thermocline occurs in the areas where the Yellow Sea Warm Current extends to the north and expands both sides and the position of the thermocline is shallow;2) In the main area of the Yellow Sea Warm Current further to the south,however,the effect caused by the sea surface cooling is offset by the heat supplement and the inversion thermocline becomes very weak and even disappears.This is the reason why the area of the inversion thermocline retreats northward and becomes absent near the southern central region in the month of April;3) The overlying of the southward cold water of the Lubei Coastal Current over the warm water of the Yellow Sea Warm Current makes the inversion thermocline strengthen,thus making the area of cold and warm water action become a strong inversion thermocline area;4) The front ends of both the cold coastal current water and the cold water located respectively at the left side and the right side of the Yellow Sea Warm Current wedge to the Yellow Sea Warm Current and often overlay above the high temperature and high salt water of the Yellow Sea Warm Current,forming a lower inversion thermocline.Thereby,a kind of double inversion thermocline forms.All these characteristics are more objective,comprehensive,detailed and accurate than what we have known before. |
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| Keywords: | marine stratification spectrum representation and adaptive recognition inversion thermocline the Yellow Sea Warm Currenct strong inversion thermocline double inversion thermocline |
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