Research on the Effects of Azimuth on Slant Tropospheric Delay
Abstract Tropospheric delay remains an important source of error. Aiming at four regions with different climatic conditions, this paper analyzes the effects of azimuth on slant tropospheric delay at various elevation angles and then proposes an approach to refine horizontal gradients of this delay. The proposed approach improves solution accuracy of VLBI data efficiently: baseline repeatability is improved by 4%, while improvement is 15% for the accuracy of estimated zenith tropospheric delay.
Key words :
space geodesy
very long baseline interferometry
tropospheric delay
horizontal gradient
baseline repeatability
Cite this article:
FAN Haopeng,SUN Zhongmiao,LIU Xiaogang et al. Research on the Effects of Azimuth on Slant Tropospheric Delay[J]. jgg, 2019, 39(6): 634-638.
FAN Haopeng,SUN Zhongmiao,LIU Xiaogang et al. Research on the Effects of Azimuth on Slant Tropospheric Delay[J]. jgg, 2019, 39(6): 634-638.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2019/V39/I6/634
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