Research progress and prospect of monitoring tropospheric water vapor by GNSS technique

doi:10.11947/j.AGCS.2022.20220039

Abstract

Abstract: 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 water vapor accounts for a small proportion in the troposphere, it plays an important role in a series of weather and a variety of climate changes. With the rapid development of GNSS (global navigation satellite system), GNSS water vapor monitoring has become one of the most important research and application directions. This paper systematically introduces the research status and progress of GNSS multi-dimensional water vapor monitoring and its application in related fields. In terms of GNSS water vapor monitoring, the current research mainly focuses on two-dimensional precipitable water vapor monitoring and three-dimensional wet refractive index or water vapor density profile retrieval. In terms of GNSS water vapor application research, it mainly includes GNSS positioning, short-term rainfall, drought and flood monitoring, numerical assimilation prediction and so on.

Key words: GNSS water vapor monitoring, GNSS water vapor application, precipitable water vapor, water vapor tomography

CLC Number:

P227

YAO Yibin, ZHAO Qingzhi. Research progress and prospect of monitoring tropospheric water vapor by GNSS technique[J]. Acta Geodaetica et Cartographica Sinica, 2022, 51(6): 935-952.

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