北太平洋中尺度涡温度垂直结构区域差别分析-海洋预报

北太平洋中尺度涡温度垂直结构区域差别分析

单位：1. 国家海洋局日照海洋环境监测站, 山东日照 276800;
2. 国家海洋局北海预报中心, 山东青岛 266000;
3. 山东省海洋生态环境与防灾减灾重点实验室, 山东青岛 266061

分类号：P731.11

出版年·卷·期（页码）：2017·34·第三期（10-16）

摘要：

利用在北太平洋海域（120°E~100°W，10°~60°N；）19a间（1993-2011年）识别追踪出的中尺度涡，结合该区域内的Argo浮标资料，初步探索了北太平洋不同区域之间涡旋垂直温度结构的差异性。通过对比北太平洋4个小区域（副热带逆流区域、黑潮延伸体区域、亲潮区域、东部加利福尼亚沿岸区域）内的涡旋发现：每个区域内气旋涡和反气旋涡的垂直温度结构具有很大的相似性，但不同区域之间则略有差异。其中黑潮延伸体区域跟其它区域的中尺度涡垂直温度结构有较大差别，该区域内中尺度涡温度异常值明显大于其它区域，冷暖核的深度比其它区域要深，并且从100~600 m的深度上都有较大的温度异常。

The difference of eddy vertical structure in different areas in the North Pacific(NP) was analyzed with eddies identified in 19 years (1993—2011) and Argo data in the NP.By comparing eddy vertical structure in four different areas(the Subtropical Countercurrent,the Kuroshio extension,the Oyashio Current and east coast of North Pacific),the results show that the cyclones and anticyclones have similar structure in the same area,but the eddy structure distinct from each other in different areas,especially in the Kuroshio extension.The vertical temperature anomaly of eddies in this area is larger than other areas,and the depth of cores is deeper.Furthermore,the temperature anomaly in depth from 100 m to 600 m is large generally in this area.

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