基于三棱柱11剖分法的海洋温度场动态三维建模方法研究

Research on the Dynamic 3D Modeling Method of Ocean Temperature Field Based on the Three Prism 11 Partition Method

海水的温度是海洋物理性质中最基本的要素之一,随着对地球研究的逐步深入,数字地球的建模范围也从陆地向海洋延伸,从静态向动态建模发展。由于海洋每时每刻都在变化,对海洋温度场的三维建模尤其是动态三维建模尤为困难。本文分析了海洋温度场数据获取的方法,并从动态温度场数据的特点出发,提出了基于三棱柱11剖分法的海洋温度场动态三维建模方法,提取对象中的等温面作为特征对三维温度场进行建模和表达。实验表明,本文提出的方法可以高效地对动态三维温度场进行建模和表达。

The sea water temperature is one of the most basic elements in the marine physical properties. With the gradual deepening of the study of the earth, the digital earth＇s modeling range extends from the land to the ocean, and from the static to dynamic modeling. Because the ocean is changing all the time, it is very difficult to model the 3D modeling of the ocean temperature field, especially the dynamic 3D model. The ocean temperature field data acquisition methods are analyzed in this paper. And starting from the dynamic temperature field of the characteristics of the data, the triangular prism 11 partition method of ocean temperature field dynamic 3D modeling method based on the extracted object in an isothermal surface as the feature of 3D temperature field modeling and expression. Experimental results show that the proposed method can effectively model and express the dynamic 3D temperature field.