Temporal and Spatial Characteristics of GNSS Tropospheric Delay at High Altitude
Abstract We analyze the activity characteristics of tropospheric delay in high altitude region by using ground-based GNSS observation data. The results show that the tropospheric delay varies significantly with altitude in the highland region, the accuracy of the Saastamoinen model is better than that of the Hopfield model, and the accuracy of both models at high altitudes is lower than at low altitudes, indicating that the performance of the conventional tropospheric delay model decreases at high altitudes. The mean values of total delay and wet delay at high altitude are 67% and 30% of those at low altitude, respectively, indicating that the adaptation of the dry delay part becomes weaker at high altitude and becomes the dominant factor affecting the model accuracy, which needs to be further optimized.
Key words :
GNSS
tropospheric delay
high altitude area
temporal and spatial characteristics
accuracy of positioning
Cite this article:
LI Han,LI Jianfeng,HUANG Dingfa. Temporal and Spatial Characteristics of GNSS Tropospheric Delay at High Altitude[J]. jgg, 2023, 43(10): 1026-1031.
LI Han,LI Jianfeng,HUANG Dingfa. Temporal and Spatial Characteristics of GNSS Tropospheric Delay at High Altitude[J]. jgg, 2023, 43(10): 1026-1031.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2023/V43/I10/1026
[1]
LI Kezhao, TIAN Chendong. Fast Solution of GNSS Integer Ambiguity by M-Cholesky Decomposition Method [J]. jgg, 2023, 43(8): 771-774.
[2]
WU Jizhong, CHEN Jie. Ambiguity Fixing Effect of PPP Service Provided by the Second Generation Satellite-Based Augmentation System GATBP [J]. jgg, 2023, 43(8): 775-779.
[3]
WU Wei, LIU Huicui, CAO Jianfeng, JU Bing, WANG Qianxin, LIU Ying, ZHANG Houzhe. Feasibility of GNSS in Cis-Lunar Space Spacecraft Autonomous Navigation [J]. jgg, 2023, 43(8): 795-800.
[4]
ZHENG Zhiqing, ZHANG Kefei, SHI Jiaqi, ZHANG Minghao, LI Longjiang. Using GNSS-PWV Combined with Multiple Meteorological Elements to Analyze the Process of “21·7” Severe Rainstorm in Henan Province [J]. jgg, 2023, 43(8): 809-815.
[5]
CHEN Xi, GAO Yaping. Coseismic Displacement Obtained by Combining High-Rate GNSS and Strong Seismograph Observation [J]. jgg, 2023, 43(7): 674-678.
[6]
ZHANG Nan, WANG Jing, YU Sihan, SUN Jiaxin, XIE Xiaofeng. Characteristics of Current Block Strain Rate and Active Fault Slip Deficit in the Northeastern Margin of Tibetan Plateau [J]. jgg, 2023, 43(7): 661-668.
[7]
GE Zhimin, JIANG Jinguang, ZHANG Chao, WU Jiaji, LIU Guonian. Application of Improved Robust and Adaptive EKF Algorithm in GNSS/INS Integrated Navigation [J]. jgg, 2023, 43(7): 740-744.
[8]
XIE Shaofeng, ZHANG Jihong, WANG Yijie, XIONG Si. Temporal-Spatial Characteristics Analysis of the Lapse Rate for Atmospheric Weighted Mean Temperature [J]. jgg, 2023, 43(6): 593-599.
[9]
WANG Yong, CAO Huipeng, SHANG Jun, LI Suo, YAN Yong, ZHAN Wei. Research on CME Removal of GNSS Coordinate Time Series [J]. jgg, 2023, 43(6): 551-555.
[10]
TAO Guoqiang, QIU Xiaomeng, LIU Dandan. Outlier Detection in GNSS Coordinate Time Series Based on the DIA Approach [J]. jgg, 2023, 43(6): 556-560.
[11]
DONG Zhounan, WANG Peng, ZHANG Zhijie. Comparison and Analysis of Spaceborne GNSS-R Land Surface Soil Moisture Retrieval Methods [J]. jgg, 2023, 43(6): 612-616.
[12]
HAN Shuaishuai, TAN Kai, LU Xiaofei, ZHANG Caihong, LI Qi. Analysis of Strain Evolution Characteristics before the 2021 Maduo 7.4 Earthquake in Qinghai [J]. jgg, 2023, 43(6): 641-645.
[13]
QI Zimin, QU Xiaochuan, LAI Shandong, GAO Fei, YU Liangbin. Performance of GPT3 Model in Anhui Province [J]. jgg, 2023, 43(5): 481-486.
[14]
JING Ce, HUANG Guanwen, ZHANG Qin, LI Xin, ZHANG Kai, YANG Huan. GNSS/Accelerometer Fusion Deformation Monitoring Based on Variance Inflation Model [J]. jgg, 2023, 43(5): 491-497.
[15]
DU Yanjun, JIA Xiaolin, YAO Wanqiang, LI Jiahao. Influence of Timing Group Delay on BDS-3 New Signals Single Point Positioning [J]. jgg, 2023, 43(5): 447-451.