国产XBT在中尺度涡加密观测中的应用  

Application of domestic XBT in the encryption observation of mesoscale eddies

作　　者：任强[1,2,3] 徐安琪 南峰[1,2,3] 于非 唐瑛[1,2,3] REN Qiang;XU Anqi;NAN Feng;YU Fei;TANG Ying(Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China;Key Laboratory of Ocean Circulation and Fluctuation,Chinese Academy of Sciences,Qingdao 266071,China;Center for Ocean Sciences,Chinese Academy of Sciences,Qingdao 266071,China;School of Marine Sciences,Nanjing University of Information Science&Technology,Nanjing 210000,China)

机构地区：[1]中国科学院海洋研究所,山东青岛266071 [2]中国科学院海洋环流与波动重点实验室,山东青岛266071 [3]中国科学院海洋大科学研究中心,山东青岛266071 [4]南京信息工程大学海洋科学学院,江苏南京210000

出　　处：《海洋测绘》2022年第4期36-39,共4页Hydrographic Surveying and Charting

基　　金：国家重点研发计划(2016YFC1400505,2017YFC1403401);国家自然科学基金面上项目(41676005);国家自然科学基金创新群体项目(41421005)。

摘　　要：为了详细了解国产抛弃式温度测量仪(XBT)的各项海上综合性能,2018年6月中国科学院海洋研究所在吕宋海峡海域开展了XBT以及定点的温盐深仪(CTD)的剖面测量试验。以CTD现场测量数据为真值,对国产XBT的数据质量和实际使用情况进行了比测分析,并基于XBT追踪观测到的一个吕宋海峡海域直径约为400 km的中尺度涡旋进行了深入分析,投放结果显示国产XBT总体投放成功率在89%左右,对比CTD测量结果两者误差小。同时XBT成功获取了高分辨率的中尺度涡结构特征,该涡旋影响深度超过600 m,主温跃层温度异常最大,涡旋最大旋转速度约为0.6 m/s。结论表明了国产XBT性能在海洋观测中的可靠性及优势,对中小尺度的海洋观测具有一定的意义。In order to understand the comprehensive performance of the demestically product of expendable bathy thermograph(XBT)in detail,the Institute of Oceanography of the Chinese Academy of Sciences(IOCAS)conducted profiling experiments of the XBT and CTD instrument around the Luzon Strait in June 2018.In this paper,the data quality and actual usage of the domestically produced XBT are compared with the CTD data.A mesoscale eddy with a diameter of about 400 km in the Luzon strait is analyzed based on XBT tracking observations in June 2018.The results show that the overall success launch rate of the domestic XBT is around 89%,and the data error is smaller comparing with CTD.The results also show that the XBT has succeeded in obtaining high-resolution mesoscale eddy structure,the eddy influence depth of more than 600 m with the largest temperature anomaly in the main thermocline,and the maximum rotation speed of the eddy is about 0.6 m/s.The conclusions show the reliability and advantages of the performance of the domestic XBT in ocean observation,which has certain significance for small and medium scale ocean observation.

关 键 词：海洋观测 抛弃式温度探头 数据比测 中尺度涡结构 吕宋海峡 

分 类 号：P229.7[天文地球—大地测量学与测量工程]