姚宜斌 l《测绘学报（英文版）》（JGGS）精选论文

Journal of Geodesy and Geoinformation Science

构建与学术的桥梁        拉近与权威的距离

🔷Title l 题目

Applicability of Bevis Formula at Different Height Levels and Global Weighted Mean Temperature Model Based on Near-earth Atmospheric Temperature

🔷Citation l 引文格式

Yibin YAO,Zhangyu SUN,Chaoqian XU. Applicability of Bevis Formula at Different Height Levels and Global Weighted Mean Temperature Model Based on Near-earth Atmospheric Temperature[J]. Journal of Geodesy and Geoinformation Science, 2020, 3(1): 1-11. DOI: 10.11947/j.JGGS.2020.0101.

🔷Abstract l 摘要

Weighted mean temperature (T_m) is a critical parameter in Global Navigation Satellite System (GNSS) technology to retrieve precipitable water vapor ( PWV). It is convenient to obtain high-precision T_m estimates near surface utilizing Bevis formula and surface temperature. However, some researches pointed out that the Bevis formula has large uncertainties in high-altitude regions. We investigate the applicability of the Bevis formula at different height levels and find that the Bevis formula has relatively high precision when the altitude is low, while with altitude increasing, the precision decreases gradually. To solve the problem, we analyze the relationship between T_m and atmospheric temperature within the near-earth space range (the height range between 0~10 km) and find that they have a high correlation on a global scale. Accordingly, we build a global weighted mean temperature model based on near-earth atmospheric temperature. Validation results of the model show that this model can provide high-precision T_m estimation at any height level in the near-earth space range.

🔷Key words l 关键词

weighted mean temperature; Bevis formula; near-earth atmospheric temperature; global model

🔷About the Authors l 作者简介

Yibin YAO,Zhangyu SUN,Chaoqian XU

• Yibin YAO
  

姚宜斌，男，1976.01生，毕业于武汉大学，博士。现任武汉大学测绘学院院长、长江学者特聘教授、武汉大学珞珈杰出学者、重庆大学兼职教授；获第13届中国青年科技奖、湖北省五四青年奖章；入选教育部新世纪优秀人才支持计划、湖北省新世纪高层次人才工程（第二层次）；任中国青年科技工作者协会第5届理事会理事、中国测绘学会大地测量与导航专业委员会委员、中国卫星导航定位协会环境监测专业委员会副主任、测绘学报编委、欧洲地球科学联合会会员。 

长期致力于测量数据处理理论、GPS空间环境学、地壳形变与地球动力学解释等领域的教学和科研工作。主持2项国家863计划项目、3项国家自然科学基金面上项目。在测量数据处理领域的代表性成果包括：建立了基于等价方差-协方差的稳健估计理论体系，相对完美地解决了相关观测的粗差处理难题；提出了基于点模式的广义网平差模型，实现了基于SINEX文件的参数估计；提出了顾及设计矩阵随机信息的最小二乘组合算法，实现了TLS参数估计和精度评定理论的统一。

🔷全文摘录如下

本文选自 JGGS 2020,Vol. 3,No. 1, P1-11，点击阅读原文即可下载。

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