对流层和电离层是地球近地空间环境中两个重要的组成部分, 是靠近地球表面且与人类生活联系
最密切的大气圈层. 全球导航卫星系统技术的快速发展, 为GNSS 空间环境学的研究提供了良好 …

Troposphere is the most closely related to human activities in the geospace environment,
and water vapor is one of the most important components in the lower atmosphere. Although …

对流层是近地空间环境中与人类活动联系最为密切的大气层, 而水汽是低层大气圈中最重要的
组成部分之一. 尽管水汽在对流层中所占比例较小, 但在一系列天气和多种气候变化中都扮演着 …

Water vapor is a key variable in numerical weather prediction, as it plays an important role in
atmospheric processes. Nonetheless, the distribution of water vapor in the atmosphere is …

Global positioning system (GPS) tropospheric tomography normally requires that the slant
wet delays between the GPS satellites and the ground receivers are estimated with high …

Tropospheric tomography is one of the most important techniques to reconstruct three-
dimensional (3D) images of the tropospheric water vapor fields using a local GNSS network …

GPS-based water vapor tomography has been proved to be a cost-effective means of
obtaining spatial and temporal distribution of atmospheric water vapor. In previous studies …

With the advent of the GPS navigation system, a promising ground based technique has
been introduced which makes it possible to estimate the amount of water vapor in the …

Precipitation is an important meteorological indicator that has a direct and significant impact
on ecology, agriculture, hydrology, and other vital areas of human health and life. It is …

Existing water vapor tomographic methods use Global Navigation Satellite System (GNSS)
signals penetrating the entire research area while they do not consider signals passing …