面向水生态安全遥感监测的虚拟地理环境平台研究

发布时间：2018-06-15 11:11

本文选题：虚拟地理环境 + 水生态安全　；参考：《江西师范大学》2017年硕士论文

【摘要】：水生态安全保护和治理是21世纪人类可持续发展战略的焦点问题,当前我国大量江河湖泊、水库等水环境正遭受严重的水体污染问题,水生态安全问题已经成为众多生态安全问题中最为突出的一环。为了有效应对水生态安全污染灾害多发频发的严峻形势,亟需提高区域对水环境的动态变化快速准确的感知、水环境污染灾害早期预警、状态评估和决策支持能力。针对上述问题,本文以水生态安全为背景,采用虚拟地理环境研究水生态安全,基于卫星遥感数据以及水生态安全模型集成处理的可视化表达,旨在探讨构建面向水生态安全的虚拟地理环境关键技术的可行性。以国产高分一号、LANDSAT和MODIS卫星遥感数据为主要数据源,结合水域动态监测技术和水生态安全遥感模型,分析虚拟地理环境中的数据环境、模型环境、表达环境与协同环境的目标、功能与实现思路,通过与虚拟地理环境仿真与决策支持平台无缝对接,面对多维动态的地理环境,设计实现了可快速便捷分析了解地理环境和监控水生态安全的集成化知识共享工作平台,并支持几何、物理以及建模的过程需求,以及针对模型计算结果的地学可视化,并对该平台进行了初步测试。对该平台的构建和研究能够为水生态安全遥感监测提供一种新的角度,同时在丰富了虚拟地理环境理论的同时为虚拟地理环境理论与技术的深化应用提供了一个有效的突破口。通过平台的初步运行表明:本研究所构建的水生态安全遥感监测虚拟地理环境平台能够满足水生态安全遥感监测的需要;利用ArcSDE+SQL Server的方式能够有效的管理和集成多源、多维、多尺度的海量遥感数据和基础地理信息数据,并且能够实现空间数据库和模型数据库的一体化存储;基于IDL语言设计开发的水生态安全遥感监测可视化平台能够很好的完成各项数据的可视化工作,突出了虚拟地理环境的表现环境;使用专有硬件设施建设的虚拟地理环境硬件平台不仅能够连接虚拟地理环境各项模块,增强可视化的沉浸感,而且还能够给不同阶层的研究人员和决策者提供一个共同研究、探讨水生态安全的协同工作平台。
[Abstract]:The protection and management of water ecological security is the focus of human sustainable development strategy in the 21st century. At present, a large number of rivers, lakes, reservoirs and other water environments in China are suffering from serious water pollution problems. The problem of water ecological security has become the most prominent one among many ecological security problems. In order to effectively deal with the severe situation of frequent disasters of water ecological safety pollution, it is urgent to improve the regional ability of rapid and accurate perception of the dynamic changes of water environment, early warning of water environment pollution disasters, state assessment and decision support. In view of the above problems, this paper takes the water ecological security as the background, uses the virtual geographical environment to study the water ecological security, based on the satellite remote sensing data and the visualization expression of the water ecological security model integration processing. The purpose of this paper is to explore the feasibility of constructing the key technologies of virtual geographic environment for water ecological security. Taking the Landsat and MODIS satellite remote sensing data as the main data sources, combining with the water dynamic monitoring technology and the remote sensing model of water ecological security, this paper analyzes the data environment, model environment, expressing environment and cooperative environment objectives in the virtual geographical environment. Functions and implementation ideas, through seamless docking with virtual geographic environment simulation and decision support platform, facing multi-dimensional dynamic geographical environment, An integrated knowledge sharing working platform is designed and implemented to analyze and understand the geographical environment and monitor the ecological safety of water quickly and conveniently. It also supports the process requirements of geometry, physics and modeling, as well as the visualization of geoscience according to the results of the model calculation. The platform is tested preliminarily. The construction and research of this platform can provide a new angle for remote sensing monitoring of water ecological security, at the same time, it can enrich the theory of virtual geographical environment and provide an effective breakthrough for deepening the application of the theory and technology of virtual geographical environment. The preliminary operation of the platform shows that the virtual geographic environment platform for remote sensing monitoring of water ecological security can meet the needs of remote sensing monitoring of water ecological security, and the method of ArcSDE SQL Server can effectively manage and integrate multi-source, multi-dimensional, multi-source, multi-source and multi-dimensional remote sensing monitoring platform. The multi-scale massive remote sensing data and the basic geographic information data, and can realize the spatial database and the model database integration storage; The visualization platform of remote sensing monitoring of water ecological security based on IDL language can complete the visualization of all kinds of data well, and highlight the representation environment of virtual geographical environment. The hardware platform of virtual geographical environment constructed with proprietary hardware facilities can not only connect the modules of virtual geographical environment, enhance the sense of visual immersion, but also provide a common research for different levels of researchers and decision makers. This paper discusses the cooperative working platform of water ecological security.
【学位授予单位】：江西师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：X52;X87

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