Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8141595 | NRIAG Journal of Astronomy and Geophysics | 2018 | 5 Pages |
Abstract
The PTD mapping functions were compared, with three recent total mapping functions model and another three separate dry and wet mapping function model. The results of the research indicate that models are very close up to zenith angle 80°. Saastamoinen and 1/cos z model are behind accuracy. Niell model is better than VMF model. The model of Black and Eisner is a good model. The results also indicate that the geometric range error has insignificant effect on slant delay and the fluctuation of azimuth anti-symmetric is about 1%.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Astronomy and Astrophysics
Authors
M.A. Abdelfatah, Ashraf E. Mousa, Gamal S. El-Fiky,