基于Voxler平台的太平洋中尺度涡合成三维结构

The Three-dimensional Structure of Mesoscale Eddies by Voxler Platform

为深入研究太平洋中尺度涡的三维结构特征,解决常规一维剖面和二维平面图对温盐空间分布规律分析不足的弊端,文章在三维结构合成分析的基础上首次引入Voxler平台,建立太平洋中尺度涡温盐要素的三维数据模型,实现太平洋中尺度涡三维结构的可视化表达,利用历史观测数据合成的太平洋中尺度涡三维结构,对温盐结构特征进行直观的全空间三维分析。研究结果表明:太平洋反气旋涡温度异常的主体结构深度约200m,呈鹅卵石状,涡旋结构可维持到1 000m;盐度异常的主体结构深度约300m,呈水平扁平水滴状,涡旋结构仅维持约800m;与盐度异常的三维结构相比,温度异常结构较复杂,且涡旋结构更明显,到达深度也更深,即温度受中尺度涡的影响更显著。

In order to deeply study the threedimensional structural characteristics of the mesoscale vortex in the Pacific Ocean and solve the shortcomings of the conventional onedimensional section and twodimensional plan interpretation on the spatial distribution of warm salt,the paper introduced the Voxler platform for the first time based on the threedimensional structural synthesis analysis,and established the Pacific mesoscale vortex temperature salt.The threedimensional data model of the element realized the visual expression of the threedimensional structure of the mesoscale vortex in the Pacific Ocean.The threedimensional structure of the Pacific mesoscale vortex synthesized by historical observation data was used to perform an intuitive fullspace threedimensional analysis of the temperature and salt structure features.The results showed that the main structure of the anticyclonic vortex temperature in the Pacific Ocean is about 200 m deep and cobblestonelike,and the vortex structure can be maintained to 1 000 m.The main body structure with an abnormal salinity is about 300 m deep,showing a horizontal flat drop and vortex.The spin structure is only maintained to about 800 m; compared with the threedimensional structure with abnormal salinity,the temperature anomaly structure is more complicated,and the vortex structure is more obvious,and the reaching depth is also deeper,that is,the temperature is more affected by the mesoscale vortex.