GNSS对流层水汽监测研究进展与展望  

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

作　　者：姚宜斌[1] 赵庆志[2] YAO Yibin;ZHAO Qingzhi(School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;College of Geomatics,Xi’an University of Science and Technology,Xian 710054,China)

机构地区：[1]武汉大学测绘学院,湖北武汉430079 [2]西安科技大学测绘科学与技术学院,陕西西安710054

出　　处：《测绘学报》2022年第6期935-952,共18页Acta Geodaetica et Cartographica Sinica

基　　金：国家自然科学基金(42142037,41874033)。

摘　　要：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重要角色。随着全球导航卫星系统(GNSS)的快速发展,GNSS对流层水汽监测成为重要的研究和应用方向。本文系统介绍了GNSS多维水汽监测及其在相关方面应用的研究现状和进展。GNSS水汽监测研究方面,当前主要集中在二维大气可降水量监测和三维湿折射率/水汽密度廓线反演两部分;GNSS水汽应用研究方面,当前主要包括定位、短临降雨及旱涝监测、数值同化预报等。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.

关 键 词：GNSS水汽监测 GNSS水汽应用 大气可降水量 水汽层析 

分 类 号：P227[天文地球—大地测量学与测量工程]