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22 December 2004 An evaluation of geodetic positioning error simulated using a mesocale nonhydrostatic model
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Abstract
We simultaneously calculate atmospheric parameters (zenith wet delay and a gradient vector) and positioning errors estimated from tropospheric slant delays using ray tracing technique through a one epoch data set of the mesoscale non-hydrostatic numerical model. In this numerical calculation both isotropic and anistropic mapping functions are evaluated. We find that the positioning errors are not reduced by an anisotropic mapping function, with the exception of the north-south component. Elevation weighting is more important than mapping function type for reducing horizontal errors with the present specific data set. Large horizontal and vertical positioning errors associated with topography and mountain lee wave effect are indicated.
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Ryuichi Ichikawa, Hiromu Seko, and Michael Bevis "An evaluation of geodetic positioning error simulated using a mesocale nonhydrostatic model", Proc. SPIE 5661, Remote Sensing Applications of the Global Positioning System, (22 December 2004); https://doi.org/10.1117/12.578647
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