Distribution of ∆ at various azimuth angles and elevation angles (IMAGE)

Aerospace Information Research Institute, Chinese Academy of Sciences

Distribution of ∆ at various azimuth angles and elevation angles

Caption

The radial axis represents the elevation angle, the azimuth angle is represented by the angular axis, and the color represents the values of non-isotropic (∆), which is the difference between the SPD at different azimuth angles and the average SPD at the same elevation angle. Based on Fig. 11, considering the elevation angle range of 10°–20°, it can be observed that the tropospheric delay values exhibit some variation within four azimuth angle intervals: 45°–135°, 225°–315°, 315°–45°, and 135°–225°. More specifically, the values within the 45°–135° and 225°–315° intervals are similar, while the 315°–45° and 135°–225° intervals display noticeable disparities compared to the other intervals.

Credit

Satellite Navigation

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CC BY

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