基于地基GPS层析大气水汽资源的方法研究

大气水汽资源作为一种潜在的水资源,对实现淡水资源的可持续利用具有重要的战略意义。地基GPS层析大气水汽技术为研究大气水汽资源的三维分布提供了定量依据,对于合理开发利用大气水汽资源具有重要意义。论文介绍了地基GPS层析大气水汽技术的基本原理;层析网格的划分是地基GPS层析大气水汽技术的关键问题,文中对国内外地基GPS层析网格划分方法进行了论述,并总结了该技术普遍使用的3种模型,即对流层模型化算法、一般算法和Kalm an滤波法;最后提出地基GPS层析大气水汽技术中存在的问题,并对该技术未来发展方向给出了建议。

Progress in Ground-Based GPS Tomographying Atmospheric Water Vapor Resource

Atmospheric water vapor is a kind of potential water resource. It has important strategic significance for the realization of the sustainable use of freshwater resources. Ground-based GPS atmospheric water vapor tomographic technology provides quantitative basis for the study of atmospheric water vapor resources three-dimensional distribution. The technology is also important for the rational development and utilization of water vapor resources. This paper introduces the basic principle of ground-based GPS atmospheric water vapor tomographic technology; and division of ground-based GPS tomographic network is one of the critical issues for the technology. The paper discusses the methods of dividing ground-based GPS tomographic network home and abroad. It also summarizes the three main algorithms of the technology used commonly. Finally, the paper gives the existing questions of the technology and suggestions of future development.