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Acta Geophysica

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Volume 60, Issue 4 (Aug 2012)

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Results of the application of tropospheric corrections from different troposphere models for precise GPS rapid static positioning

Paweł Wielgosz
  • University of Warmia and Mazury, Olsztyn, Poland
  • Email:
/ Jacek Paziewski
  • University of Warmia and Mazury, Olsztyn, Poland
  • Email:
/ Andrzej Krankowski
  • University of Warmia and Mazury, Olsztyn, Poland
  • Email:
/ Krzysztof Kroszczyński
  • Military University of Technology, Warszawa, Poland
  • Email:
/ Mariusz Figurski
  • Military University of Technology, Warszawa, Poland
  • Email:
Published Online: 2012-06-08 | DOI: https://doi.org/10.2478/s11600-011-0078-1

Abstract

In many surveying applications, determination of accurate heights is of significant interest. The delay caused by the neutral atmosphere is one of the main factors limiting the accuracy of GPS positioning and affecting mainly the height coordinate component rather than horizontal ones. Estimation of the zenith total delay is a commonly used technique for accounting for the tropospheric delay in static positioning. However, in the rapid static positioning mode the estimation of the zenith total delay may fail, since for its reliable estimation longer observing sessions are required. In this paper, several troposphere modeling techniques were applied and tested with three processing scenarios: a single baseline solution with various height differences and a multi-baseline solution. In specific, we introduced external zenith total delays obtained from Modified Hopfield troposphere model with standard atmosphere parameters, UNB3m model, COAMPS numerical weather prediction model and zenith total delays interpolated from a reference network solution. The best results were obtained when tropospheric delays derived from the reference network were applied.

Keywords: GPS; rapid static positioning; tropospheric delay; zenith total delay

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About the article

Published Online: 2012-06-08

Published in Print: 2012-08-01



Citation Information: Acta Geophysica, ISSN (Online) 1895-7455, ISSN (Print) 1895-6572, DOI: https://doi.org/10.2478/s11600-011-0078-1. Export Citation

© 2011 Institute of Geophysics, Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. (CC BY-NC-ND 3.0)

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