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1、 c I | : 1000null0534(2009)05null0997null09null null l : 2008null11null11; : 2009null04null03null null : n p V S S (20060300002); S E 1 S (40875016) null null T e : Y k (1983null ), o , , V , 1 V Y r ? Z . Enullmail: o | _ L r Y 9 s 杨通晓1- 2, null 王振会1- 2, null 张培昌2, null 胡方超2(1. 2 v , KLME, 2 null
2、210044;2. 2 v v , 2 null 210044)K null 1 : o 0 H o $ , 1 o bW | _ + , y 0 bW | _ a r ? L W 1 b I n 0 . r f / , s | _ L r ZDR LDR Y , 4 L ? r 4 4 G b1 o M : L r ; r ; m s | : P412.25 D S M : A1null null null L r V 1 B r , ZDRaLDR b o v . l M M + , B 0 a j M , M Y a + a4 r 1 E s r b 0 B d o , 0 r ? l
3、a FvM r , 9 h , i T Fh, N H C | O M Z _ b | % 0 V # 5#, )ZO 5#bnull null (2) null #= 3)/2, | = 5#( f ), f #= )/2, | ZDR(#= 3)/2)|, . L r Y 0 / # _ J. , 2007, 26(1): 116- 127 4 null Sachidananda M, DS Zrnic. ZDR measurement considerationsfor a fast scan capability radar J. Radio Science, 1985, 20(4):
4、 907- 922 5 null HerzeghP, A R Jameson. Observing precipitationthrough dunullalnullpolarization radar measurements J. Bull Amer MeteorSoc, 1992, 73(9): 1365- 13746 null Z , . l o 0 _ s H + J. , 2005, 24(6): 948- 9557 null Bringi V N, V Chandrasekar. Polarimetric Doppler WeatherRadarM. Cambridge Univ
5、ersity Press, 2001: 176- 1788 null Brussaard G. A meteorological model for rainnullinduced crossnullpolarization J. IEEE Trans Antennas Propagat, 1976, 24(1): 5- 119 null Howard J, M Gerogiokas. A statistical raindrop canting anglemodelJ. IEEE Trans Antennas Propagat, 1982, 30: 141-14710 f , . v o *
6、 $ M. : , 1995: 109- 11011 Hubbert J, V N Bringi. Aniterative filtering technique fortheanalysis of copolar differential phase and dualnullfrequency radarmeasurementsJ. J Atmos Ocea Tech, 1995, 12(3): 643-64812 Jameson A R. Microphysical interpretation of multinullparameterRadar measurements in Rain
7、. Part III: Interpretation andMeasurement of propagation differential phase shift betweenorthogonal linear polarizations J. J Atmos Sci, 1985, 42:607- 61413 Doviak R J, V Bringi, A Ryzhkov, et al. Considerations forpolarimetricupgrades to WSR- 88D radarsJ. J Atmos Ocenullanic Tech, 2000, 17: 257- 27
8、8Effects of Axial Orientations of Rotating Spheroidal Raindropson Polarimetric Measurements of DualnullPolarization RadarYANG Tongnullxiao1- 2, null WANG Zhennullhui1- 2, null ZHANG Peinullchang2, null HU Fangnullchao2(1. K LME, Laboratory f or Atmospheric Sounding and Remote Sensing, Nanj ing Unive
9、rsity of Inf ormation Science &Technology, N anjing 210044, China;2. College of Atmospheric Physics, N anj ing University of Inf ormation Science & T echnology, Nanj ing 210044, China)null null Abstract: Based on thetheory of electromagneticscattering bysmallrotating spheroidparticles, studnullies a
10、remadeof axial orientation features of small rotating spheroid raindrop groups so as to establish therelationship between axial orientations of theraindrop groups and wind direction, elevation of theradarantenna. Consideringthepropagationeffectsin rainfall, herehas analyzed theeffect ofaxialorientat
11、ion ondualnullpolarizationradar measurements, such as ZDR and LDR. Theresults provide atheoreticalbasefor imnullproving thedata accuracy of dualnullpolarization Doppler weather radar.Key words: DualPolarization Radar; Radar elevation; Polarization measurements1005null 5 Y k : o | _ L r Y 9 s null null null null null null null null null
