EFFECTS OF HORIZONTAL VARIATION OF TROPOSPHERIC DELAY ON GPS SURVEYING
Chen Zhaohua ;and Dai Wujiao
Department of Survey Engineering and Geomatics, Central South University, Changsha 410083
Abstract There are weather condition differences in different location in small areas, as a result，the tropospheric delay can not be completely eliminated with the usually used double difference technology. In order to analyze the residual tropospheric delay effect which caused by the different weather condition between the ends of the baseline, several tests with baselines of different length were carried out by using the data from Hong Kong CORS. The followings conclusions can be drawn from these test results.1) When the baseline is more than 15 kilometers, the residual tropospheric delay is the main error sources affecting the accuracy of GPS height measurement, and the longer the baseline length is, the bigger the error of the residual tropospheric delay is. 2)When the baseline length is close to or over 30 kilometers, baseline solution often fails because of the lange residual tropospheric delay.3)The tropospheric delay in horizontal direction is more diversed in the humid and hot weather conditions, and the accuracy of the GPS height measurement decreases more.
Key words ：
GPS
tropospheric delay
measurement accuracy
baseline
weather condition
Received: 01 January 1900
Corresponding Authors:
Chen Zhaohua
Cite this article:
Chen Zhaohua,and Dai Wujiao. EFFECTS OF HORIZONTAL VARIATION OF TROPOSPHERIC DELAY ON GPS SURVEYING[J]. , 2010, 30(第3期): 83-87.
Chen Zhaohua,and Dai Wujiao. EFFECTS OF HORIZONTAL VARIATION OF TROPOSPHERIC DELAY ON GPS SURVEYING[J]. jgg, 2010, 30(第3期): 83-87.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2010/V30/I第3期/83
[1]
SUN Wei,ZHU Mingchen. Study on Modeling of Tropospheric Zenith Delay in China with BP-Adaboost Strong Predictor
[2]
ZHANG Shuangcheng,XU Qiang,LUO Yong,LEI Kunchao,NIU Yufen,PANG Xiaoguang. Temporal and Spatial Variation of Land Subsidence in Beijing from 2017 to 2020 Interpreted by Time Series InSAR
[3]
ONG Qi,GAO Ertao,YU Hangming,LAN Yanping. Research on the Sensitivity of Deep Slip Inversion for Earthquake Fault Slip Constrained by InSAR and GPS Geodetic Deformation Data
[4]
WANG Xuke,YAN Shiwei,ZHAO Hong,YANG Xiaolei. Research on the Adaptability of Different Tropospheric Zenith Delay Models in Northwest China
[5]
WANG Xiaolei,NIU Zijin,HE Xiufeng. Precipitation Analysis and Judgment Based on GPS Water Vapor Retrieval and GPS-IR
[6]
ZHANG Jian，ZHAO Bin，WANG Dongzhen，WANG Haibin，LIU Zhijun. Probing the Rheological Structure of Southern Tibet from the Postseismic Deformation of the 2015 MW 7.8 Nepal Earthquake
[7]
E Shenglong，ZHOU Gang，LONG Hai，LUO Yingting，XU Hailin，RAO Zhangquan，ZHOU Yongyan. Performance Evaluation of BDS Global Positioning Service and Zenith Tropospheric Delay Estimation
[8]
TIAN Xiao,ZHAN Wei,ZHENG Hongyan,YIN Haiquan. Characteristics of Present-Day 3D Crustal Movement of Sichuan-Yunnan Region
[9]
GUAN Zhongpei,GAO Ying,LI Li,ZHOU Jialing,LIU Yu,HOU Xiaoling,ZHANG Wenwen. Parameter Fusion from GPT2w Model and GNSS to Obtain Precipitable Water Vapor
[10]
JIANG Guangwei,WANG Bin,CHEN Xiongchuan,TIAN Xiaojing,WANG Panlong. The Relative Spatial Relation and Random Effects of Regional Reference Frame in the Northeast of China
[11]
ZHAO Wenhao,LIU Genyou,WANG Shengliang,GAO Ming. GPS-L1/BDS-B1 Non-Overlapping Frequency Tight Combination Relative Positioning
[12]
LIU Zhongguan，YUAN Linguo，CHEN Changfu，CHENG Shuai，ZHANG Di. Modeling Accuracy Analysis of Ocean Tide Load Displacement in New Zealand
[13]
FU Bolin，XIE Shuyu，LI Tao，LI Hao，ZUO Pingping，GAO Ertao. Comparative Study of Landslide Remote Sensing Monitoring Based on SBAS/PS-InSAR Technology
[14]
DAI Hongbao，TANG Hongtao. Analysis of Tectonic Stress Field Characteristics of Longxian-Baoji Fault Zone Based on GPS Data
[15]
WANG Dongzhen, ZHAO Bin, YU Jiansheng, TAN Kai. Can Vertical Crustal Deformation Be Monitored by Campaign GPS?——Taking Chinese Mainland as Example
