Algorithm for wind speed estimate with polarimetric radar

Authors

  • Ю. А. Авер’янова Национальный авиационный университет

DOI:

https://doi.org/10.18372/2306-1472.55.5410

Keywords:

hydrometeor, meteorological radar, polarimetry, wind speed

Abstract

The connection of wind speed and drops behavior is substantiated as well as the drop behavior influence onto the polarization characteristics of electromagnetic waves. The expression to calculate the wind speed taking into account the Weber number for the critical regime of drop deformation is obtained. The critical regime of drop deformation is the regime when drop is divided into two parts. The dependency of critical wind speed on the drop diameter is calculated and shown. The concept o polarization spectrum that is introduced in the previous papers is used to estimate the dynamic processes in the atmosphere. At the moment when the drop is under the influence of the wind that is equal to the critical wind speed the drop will be divided into two parts. This process will be reflected as the appearance of the two equal components of polarization spectra of reflected electromagnetic waves at the orthogonal antennas of Doppler Polarimetric Radar. Owing the information about the correspondence of the polarization component energy level to the drop diameter it is possible to estimate the wind speed with the obtained dependency. The process of the wind speed estimate with polarimetric radar is presented with the developed common algorithm

Author Biography

Ю. А. Авер’янова, Национальный авиационный университет

Аверьянова Юлия Анатольевна. Кандидат технических наук. Доцент.

Кафедра аэронавигационных систем, Национальный авиационный университет, Киев, Украина.

Образование: Киевский международный университет инженеров гражданской авиации (1999).

Направление научной деятельности: воздушная навигация, управление воздушным движением, метеорадиолокация, авиационная метеорология, радиолокация, допплеровско-поляриметрическая радиолокация, дистанционное зондирование атмосферы

References

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Determination. Proceedings of International Conference on Antenna Theory and Techniques (ICATT 2009). Lviv. Ukraine: 256258.

Averyanova, Yu.A.; Averyanov, A.A.; Yanovsky, F.J. 2008. Polarization signal components estimate in weather radar. Proceedings of 12th International Conference on Mathematical Methods in Electromagnetic Theory. Odesa. Ukraine: 360362.

Doviak, R.J.; Zrnic, D.S, 1993. Doppler radar and weather observations. Academic Press, inc. 522 p.

Yanovsky, F. 2011. Inferring microstructure and turbulence properties in rain through observations and simulations of signal spectra measured with Doppler–polarimetric radars. Book chapter in: Polarimetric Detection, Characterization, and Remote Sensing. Springer. 545 p.

Yanovsky, F.J.; Russchenberg, H.W.J.; Unal, C.M.H. 2005. Retrieval of Information About Turbulence in Rain by Using Doppler-Polarimetric Radar. IEEE Transactions on Microwave Theory and Techniques. Feb. Vol. 53, N 2: 444–450

Published

11-05-2013

How to Cite

Авер’янова, Ю. А. (2013). Algorithm for wind speed estimate with polarimetric radar. Proceedings of National Aviation University, 55(2), 44–49. https://doi.org/10.18372/2306-1472.55.5410

Issue

Section

AEROSPACE SYSTEMS FOR MONITORING AND CONTROL