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南海南部夏季反气旋环流的结构特征与变化研究; The anticyclonic circulation in the southern South China Sea: Observed structure, seasonal developme
向荣
Subtype硕士
Thesis Advisor周生启
2015
Degree Discipline物理海洋学
Keyword南海南部 反气旋环流 垂直结构 季节演变 年际变化
Abstract本文根据1998和1999年航次观测水文数据以及1993-2012年海表面高度异常资料(SLA),研究了南海南部夏季反气旋环流的垂直结构,季节性和年际变化。同时探讨了此反气旋环流与其北侧气旋冷涡之间的关系。航次数据表明,1998年反气旋环流的垂直结构在4月可达深度250m,而在6月变为350m,其水平尺度在6月份也较大,反气旋环流垂直结构在季节演变过程中有加强的趋势。1999年4月,航次数据表明存在一个较小的反气旋涡,但并非夏季反气旋环流;7月份时反气旋环流垂直结构范围也达到350m。相比于1998年,1999年反气旋环流出现更早、且位置更靠,即反气旋环流存在年际差异。根据2014年9月航次资料,研究了北侧的气旋冷涡和东向急流垂直结构。结果表明:气旋冷涡水平尺度约为150km,垂直范围从表层到200m深度;东向急流最大地转流流速达到1.2m/s,宽度大约为100km,垂向结构深度达到150...
Other AbstractIn situ hydrographic and current measurements from cruises in 1998 and 1999, together with twenty-year (1993-2012) sea level anomlies (SLA) data from satellite altermeter, are utilized to study the vertical structure, seasonal development and interannual variability of the anticyclonic circulation in the southern South China Sea (SCS). The relationship of the anticyclonic circulation and its northern flanking cyclonic eddy are described. Based on the hydrographic data, the vertical structure of the anticyclonic circulation in 1998 penetrated much deeper (from 250m in April to 350m in June) and its horizontal one became wider in June than in April. And its shape was an irregular ellipse and its vertical structure extended to 350m in July 1999.The anticyclonic circulation shows interannual v...
Document Type学位论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/14686
Collection学位论文(硕士)
Recommended Citation
GB/T 7714
向荣. 南海南部夏季反气旋环流的结构特征与变化研究, The anticyclonic circulation in the southern South China Sea: Observed structure, seasonal developme[D],2015.
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