Estimation of the Hydrometeors’ Anisotropic Properties Based on the Use of Circular Depolarization Ratio
Abstract
In the paper, a question about an estimation possibility of the hydrometeors’ anisotropic properties by using of circle depolarization ratio is considered and discussed. It is known that the factors limiting the efficiency of the circular depolarization ratio method include the pronounced dependence of the method upon the differential phase shift. The last one is introduced by a propagation medium between orthogonal components of electromagnetic wave. On this basis, a determination of the circular depolarization ratio estimation error is carried out. Such an error appears with an additional phase shift between orthogonal components of an electromagnetic wave. When receiving signals with circular polarization states of the right and left rotation direction, a special attention is given to the evaluation of its phase difference variability. Also, an interpretation of given results stands apart as another important question to discuss. The calculation data are presented and analyzed. In particular, an applicability of the signals’ phase difference estimation procedure is illustrated. It is needed for an implementation of probed meteorological formations identification in case of ambiguous situations. It is found that appearance of the phase shift, introduced by the propagation medium, leads to a significant distinction between the measured circular depolarization ratio value and the polarization anisotropy true value of the probed meteorological formations
DOI 10.14258/izvasu(2017)4-08
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Al-Jumily J. K., Charlton R. B., Humphries R. G. Identification of rain and hail with circular polarization radar // Journal ofApplied Meteorology. — 1991. — Vol. 30.
Масалов Е.В., Татаринов В.Н. Поляризационные измерения в задачах радиолокационной метеорологии // Зарубежная радиоэлектроника. — 1987. — №4.
Ryzhkov A., Zhang P., Cao Q., Matrosov S., Melnikov V., Knight M. Measurements of circular depolarization ratio with the radar with simultaneous transmission/reception // ERAD 2014 — The Eighth European Conference on Radar in Meteorology and Hydrology. — 2014. [Electronic resource]. URL: http://www. pa.op.dlr.de/erad2014/programme/ExtendedAbstracts/232_ Ryzhkov.pdf (дата обращения: 18.01.2017).
Nicolet M., Schnaiter M., Stetzer O. Circular depolarization ratios of single water droplets and finite ice circular cylinders: a modeling study // Atmospheric Chemistry and Physics. — 2012. — Vol. 12.
Galletti M., Huang D., Kollias P. Zenith/Nadir Pointing mm-Wave Radars: Linear or Circular Polarization? // IEEE Transactions on Geoscience and Remote Sensing. — 2014. — Vol. 52, № 1.
Jameson A.R., Dave J.H. An interpretation of circular polarization measurments affected by propagation differential phase shift // Journal of Atmospheric and Oceanic Technology. — 1988. — Vol. 5.
Torlaschi E., Holt A.R. A comparison of different polarization schemes for the radar sensing of precipitation // Radio Science. — 1998. — Vol. 33, №5.
Galletti M., Huang D., Kollias P., Giangrande S.E. Towards a CDR-based Rain Rate Estimation Algorithm for Zenith-pointing Cloud Radars at Ka band // ERAD 2012 — The Seventh European Conference on Radar in Meteorology and Hydrology. — 2012. [Electronic resource]. URL: http:// www.meteo.fr/cic/meetings/2012/ERAD/extended_abs/ CR_100_ext_abs.pdf (дата обращения: 25.01.2017).
Татаринов В.Н., Лигтхарт Л.П., Татаринов С.В. Введение в современную теорию поляризации радиолокационных сигналов. Поляризация плоских электромагнитных волн и её преобразования : учебное пособие. — Томск, 2012. — Т. 1.
Бадулин Н.Н., Бацула А.П., Кульшенева Е.Б., Лукьянов С.П., Масалов Е.В., Татаринов В.Н. Экспериментальные исследования анизотропии рассеяния радиолокационных сигналов облаками и осадками // Известия АН СССР Физика атмосферы и океана. — 1984. — Т. 20, №6.
Kumjian M.R. Principles and applications of dualpolarization weather radar. Part 1: Description of the polarimetric radar variables // Journal of Operational Meteorology. — 2013. — Vol. 1(19).
Масалов Е.В., Ещенко С.Ю. Влияние дифференциальных факторов среды распространения на поляризационные характеристики электромагнитной волны // Известия высших учебных заведений. Физика. — 2012. — Т. 55, №3.
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