基于粒子的珠江口海流可视化方法研究  

Research on Visualization Method of the Pearl River Estuary Ocean Current Based on Particle

作　　者：黄丙湖[1] 董永 王福源 何亚文[1] HUANG Binghu;DONG Yong;WANG Fuyuan;HE Yawen(College of Oceanography and Space Information,China University of Petroleum,Qingdao 266580,China)

机构地区：[1]中国石油大学(华东)海洋与空间信息学院,山东青岛266580

出　　处：《地理空间信息》2023年第6期68-71,共4页Geospatial Information

基　　金：国家自然科学基金资助项目(41976184)。

摘　　要：以珠江口海域为研究区域,设计了一种基于粒子的海流可视化数据预处理方法,即采用改进的点中心缓冲区抽稀算法对海流数据进行抽稀;利用海流数据矢量合成计算方法将海流点数据转换为粒子数据,设计特定JSON数据结构进行数据存储。完成数据预处理后,通过搭建海流粒子动态可视化展示平台读取JSON数据,实现了NetCDF格式的海流数据以粒子形式时空动态可视化效果,解决了海流可视化静态、不直观的问题。Taking the Pearl River Estuary as the research area,we designed a data preprocessing method of ocean current visualization based on particle.Firstly,we used a data-thinning algorithm of improved point-center buffer to thinning ocean current data,and used the ocean current data vector synthesis method to convert the current point data into particle data.And then,we designed specific JSON data structures for data storage.After data preprocessing,we read JSON data by building a current particle dynamic visualization display platform,which could realize the spa-tio-temporal dynamic visualization effect of ocean current data in network common data format(NetCDF)in the form of particles,and solve the problems of static and non-intuitive ocean current visualization.

关 键 词：NETCDF 海流可视化 数据抽稀 粒子系统 

分 类 号：P208[天文地球—地图制图学与地理信息工程]