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Simplistic approach for water vapour sensing using a standalone global positioning system receiver

Simplistic approach for water vapour sensing using a standalone global positioning system receiver

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Precipitable water vapour (PWV) is an important input for numerical weather prediction model, meteorology and high-precision navigational applications. Conventional methods for the determination of PWV using radiosonde are not sufficient owing to poor temporal resolution, whereas radiometer-derived PWV is reliable only in fair weather conditions. Global positioning system (GPS) is a very useful and cost-effective tool to determine PWV continuously in all weather conditions. The processing of GPS data to extract the PWV information is, however, very complicated due to very small effect of the PWV (∼0.5% of total delay) on GPS frequencies than other sources of delay and errors and requires a network of GPS in differential configuration for such purpose. The authors show how the problem can be handled in a standalone dual-frequency GPS receiver in a relatively less complicated manner with reasonable accuracy. The performances of different dry tropospheric delay models are also investigated. The methodology is tested with GPS measurements at Kolkata (22.57°N, 88.37°E) and Bangalore (13.01°N, 77.5°E). The results indicate that the proposed methodology can be implemented for PWV estimation using single GPS receiver with satisfactory performance.


    1. 1)
    2. 2)
    3. 3)
    4. 4)
      • 10. Parkinson, B.W., Enge, P.K., Spilker, J.J.: ‘Differential GPS. In global positioning system: theory and applications’, Am. Inst. Aeronaut. Astronaut., 1996, II, pp. 3115.
    5. 5)
    6. 6)
    7. 7)
    8. 8)
    9. 9)
    10. 10)
      • 5. Suparta, W.: ‘Variability of GPS and precipitable water vapor over Antarctica comparison between observed and predicted’, World Appl. Sci. J., 12, (9), 2011, pp. 15971604.
    11. 11)
      • 6. Misra, P., Enge, P.: ‘Global positioning system: signals, measurements, and performance’ (Ganga-Jamuna Press, 2006, 2nd edn.).
    12. 12)
    13. 13)
      • 30. Prakash, S., Giri, R.K., Adesh, : ‘Precipitable water vapour at Santa Cruz airport Mumbai from radiosonde measurements: a study’, Int. J. Phys. Math. Sci., 2012, 2, (1), pp. 120130.
    14. 14)
    15. 15)
      • 9. Kaplan, E.D., Hegarty, C.J.: ‘Understanding GPS: principles and applications’ (Artech House, 2006, 2nd edn.).
    16. 16)
      • 29. Saastamoinen, J.: ‘Atmospheric correction for the troposphere and stratosphere in radio ranging of satellites, in the use of artificial satellites for geodesy’, Geophys. Monogr. Ser., 1972, 15, pp. 247251(edited by S. W. Henriksen, A. Mancini, and B.H. Chovitz, AGU, Washington, DC).
    17. 17)
      • 26. Parameswaran, K., Raju, C.S., Saha, K., Ravindran, S.: ‘Region-specific tropospheric delay model for the Indian subcontinent’. Space Physics Laboratory, VSSC, Trivandrum, ICG-Meeting, 2007.
    18. 18)
      • 19. Klobuchar, J.A., Parkinson, B.W., Spilker, J.J.: ‘Ionospheric effect on GPS in global positioning system: theory and applications’, Am. Inst. Aeronaut. Astronaut., 1996, 1, pp. 513514.
    19. 19)
    20. 20)
    21. 21)
      • 25. Leandro, R., Santos, M., Langley, R.B.: ‘UNB neutral atmosphere models: development and performance’ Proceedings of the Institute of Navigation National Technical Meeting, 2006, pp. 564–573.
    22. 22)
      • 4. Jade, S., Vijayan, M.S.M.: ‘GPS based atmospheric precipitable water vapor estimation using meteorological parameter interpolated from NCEP global reanalyzed data’, J. Geophys. Res., 2008, 113, pp. D03106.
    23. 23)
    24. 24)
    25. 25)
      • 27. Mendes, V.B.: ‘Modeling the neutral-atmosphere propagation delay in radiometric space techniques’. PhD dissertation, Department of Geodesy and Geomatics Engineering Technical Report No. 199, University of New Brunswick, Fredericton, New Brunswick, Canada, 1999, p. 353.
    26. 26)
      • 15. Takac, F., Walford, J.: ‘Leica system 1200-high performance GNSS technology for RTK applications’. Proc. 19th Int. Technical Meeting of the Satellite Division of the Institute of Navigation, Fort Worth, Texas, September 2006, pp. 217225.
    27. 27)
    28. 28)
      • 1. Liu, Y., Chen, Y., Baki, Iz, H.: ‘Precision of precipitable water vapor from radiosonde data for GPS solutions’, Geomatica, 2000, 54, (2), pp. 171175.
    29. 29)

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