Methodological steps of GNSS meteorology

: pp. 15 - 20
Received: March 03, 2014
Accepted: March 24, 2014
Department «Higher geodesy and astronomy» of Lviv Polytechnic National University

This paper highlights the gradual steps of GNSS meteorology realization. The structure of GNSS meteorology is represented in the introduction in general. The main feature of it is that the neutral atmosphere delays the passage of GNSS signal, causing the error in the measured distance is called tropospheric delay. If in geodesy a lot of efforts have been put to reduce this error to a desired level, then for meteorology this error was used as an important source of information about the state of moisture accumulation in atmosphere and its dynamics in space and time. The next sections describe the basic equation of code pseudo-distance with the transition to the value of tropospheric delay. Then using a mapping function the transition from GPS tropospheric delay to its zenith value is shown. As well as there are given the calculation formulas of zenith tropospheric delay both by integration of vertical profiles of basic meteorological parameters and using the surface atmospheric pressure only. Further a transition from GPS tropospheric delay to its zenith value with use a mapping function is shown. A procedure for obtaining of the wet component of zenith tropospheric delay from GPS observations and formulas for the determining of average temperature of weighted water vapor and integrated as well as precipitable water vapor are described.

  1. Zablotskyy F.D. Do vyznachennja zenitnoji troposfernoji zatrymky v GPS vymirakh [To the determination of zenith tropospheric delay in GPS measurements]. Mizhvid. nauk.-tekhn. zb. “Geodesija, Kartografija i Aerofotoznimannyja”. [Interdepartmental scientifictechnical collected articles “Geodesia, Kartografia i Aerofotoznimannya”]. Lviv, Publishing House of Lviv Polytechnic National University, 2000, issue 60, pp. 33-38.
  2. Kablak N.I. Dystancijne zonduvannja vodyanoji pary v atmosferi z dopomohjyu dystancijnykh suputnykovykh system [Remote sounding of water vapor by means of remote satellite systems]. Mizhwid. nauk.-tekhn. zb. “Geodesija, Kartografija i Aerofotoznimannja” [Interdepartmental scientific-technical collected articles “Geodesia, Kartografia i Aerofotoznimannya”]. Lviv, Publishing House of Lviv Polytechnic National University, 2011, issue 75, pp. 31-35.
  3. Vishnyakov V.M., Vinogradov A.A., Pavelev A.G., Yakovlev O.I., Matyugov S.S. Kosmicheskaya sistema na osnove swerchmalych sputnikov «Радиомет-СМКА» dlya radiozatmennogo monitoringa atmosfery i ionosfery signalami GNSS GLONASS i GPS [The space system on basis of the “RADIOMET-SMKA” very-small satellites for the radio occultation monitoring of atmosphere and ionosphere by the GLONASS and GPS signals]. 8th Wserossijskaya konferenciya “Sowremennye problemy distancionnogo zondirowaniya Zemli iz kosmosa”, Moskow, IKI RAN, November, 15- 19, 2010. - File acces mode:
  4. Matveev L.T. Kurs obschey meteorologii (Fizika atmosfery): uchebnik. Leningrad: Gidrometeoizdat, 1984, 751 p.
  5. Chukin V.V. Monitoring soderzhaniya wlazhnosti w atmosphere pri pomoschi system GLONASS /GPS [Monitoring of moisture content in the atmosphere by the GLONASS and GPS systems]. Uchenye zapiski RGGMU, Leningrad, 2010, no.12, pp. 51-60.
  6. Bevis, M., S. Businger, T.A. Herring, C. Rocken, R.A. Anthes, and R.H. Ware (1992). GPS meteorology: Remote sensing of atmospheric water vapor using the Global Positioning System/ Journal of Geophysical Research, Vol. 97, No. Dl4, pp.15,787-15,801.
  7. Davis J.L., T.A. Herring, I.I. Shapiro, A.E.E. Rogers, and G. Elgered (1985). Geodesy by radio interferometry: Effects of atmospheric modeling errors on estimates of baseline length / Radio Science, Vol. 20, no. 6, pp. 1593-1607.
  8. McCormick, C., C. Lenz, and D. Smith (2007). Community Initiative for Continuing Earth Radio Occultation CICERO. - File acces mode:
  9. Mendes,V.B. (1999). Modeling the neutral-atmosphere propagation delay in radiometric space techniques // Ph.D. dissertation, Department of Geodesy and Geomatics Engineering Technical Report no. 199, University of New Brunwick, Fredericton, New Brunswick, Canada, 353 pp.
  10. Saastamoinen, J. (1973). Contributions to the theory of atmospheric refraction. In three parts. Bulletin Geodesique, No. 105, pp. 279-298; No. 106, pp. 383-397; No. 107, pp. 13-34.
  11. Seeber, G. (2003). Satellite Geodesy//2nd Edition.-Walter de Gruyter.-Berlin.-New York.-589 pp.
  12. Vedel H., S. de Haan, and J. Jones. E-GVAP and the use of ground based GNSS data in meteorology. File acces mode: