An evaluation of geodetic positioning error simulated using a mesocale nonhydrostatic model

Ryuichi Ichikawa; Hiromu Seko; Michael Bevis

doi:10.1117/12.578647

22 December 2004 An evaluation of geodetic positioning error simulated using a mesocale nonhydrostatic model

Ryuichi Ichikawa, Hiromu Seko, Michael Bevis

Proceedings Volume 5661, Remote Sensing Applications of the Global Positioning System; (2004) https://doi.org/10.1117/12.578647
Event: Fourth International Asia-Pacific Environmental Remote Sensing Symposium 2004: Remote Sensing of the Atmosphere, Ocean, Environment, and Space, 2004, Honolulu, Hawai'i, United States

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.

Citation Download Citation

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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