河口海岸GIS时空过程可视化表达

doi:10.13278/j.cnki.jjuese.201502207

吉林大学学报(地球科学版) ›› 2015, Vol. 45 ›› Issue (2): 584-591.doi: 10.13278/j.cnki.jjuese.201502207

河口海岸GIS时空过程可视化表达

张敏, 周云轩, 田波, 沈芳, 葛建忠

华东师范大学河口海岸学国家重点实验室, 上海 200062

收稿日期:2014-06-07 发布日期:2015-03-26
通讯作者: 周云轩(1962-),男,教授,博士生导师,主要从事河口海岸遥感、LUCC研究,E-mail:zhouyx@sklec.ecnu.edu.cn E-mail:zhouyx@sklec.ecnu.edu.cn
作者简介:张敏(1984-),男,博士研究生,主要从事地理信息系统应用研究,E-mail:upzhangmin@qq.com
基金资助:
国家"973"计划项目(2010CB951204);科技部国家重点实验室专项研究项目(2012KYYW02)

Study of Spatio-Temporal Process Visualization for Estuarine and Coastal GIS

Zhang Min, Zhou Yunxuan, Tian Bo, Shen Fang, Ge Jianzhong

State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China

Received:2014-06-07 Published:2015-03-26

摘要/Abstract

摘要：

河口海岸带中一些随时间变化的三维海洋现象(如涡漩、锋面、水团等)的时空建模与可视化表达是海洋地理信息系统(MGIS)发展的一大难题。基于流体建模与可视化AVIZO Green技术,针对海洋连续场中的三维海洋现象,提出了基于特征的时空三域动态识别技术,设计并实现了面向主题应用的时空四维GIS可视化框架,能够有效表达三维海洋现象。以长江口海岸带涡漩、冲淡水、羽状锋和盐跃层为例进行三维动态可视模拟,直观再现了object-like型和field-like型海洋现象的时空演绎过程,为海洋现象仿真研究,尤其是多维、动态、边界模糊的复杂海洋现象的有效表达提供了一种新思路和方法。

关键词: 海洋GIS, 海洋现象, 三维可视化, AVIZO Green, 四维GIS, 河口海岸

Abstract:

The spatio-temporal modeling and visualization of certainthree-dimensional (3D)dynamic marine phenomena in estuarine and coastal waters, such as whirlpools, frontal, water mass, arevery challenging for the MGIS development. Based on the flow modeling and visualization technology of AVIZO Green, we present a spatio-temporal three-scale dynamic recognition technique for visualizing the 3D marine phenomena. We designed a theme-oriented four dimensional GIS (4DGIS) application framework to describe visually the 3D marine phenomena in continuous marine scenario. Whirlpools, fresh water fronts, plumes and salty pycnoclines in Yangtze Estuary are taken as examples in the visualization that demonstrates the spatio-temporal evolution of object-like and field-like marine phenomena. It provides a new approach for simulation visualization of marine phenomena, as well as expression of more sophisticated, multi-dimensional and dynamic marine phenomena.

Key words: Marine GIS, marine phenomena, 3D visualization, AVIZO Green, 4D GIS, estuarine and coastal

中图分类号:

P208

张敏, 周云轩, 田波, 沈芳, 葛建忠. 河口海岸GIS时空过程可视化表达[J]. 吉林大学学报(地球科学版), 2015, 45(2): 584-591.

Zhang Min, Zhou Yunxuan, Tian Bo, Shen Fang, Ge Jianzhong. Study of Spatio-Temporal Process Visualization for Estuarine and Coastal GIS[J]. Journal of Jilin University(Earth Science Edition), 2015, 45(2): 584-591.

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河口海岸GIS时空过程可视化表达

Study of Spatio-Temporal Process Visualization for Estuarine and Coastal GIS

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