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GUIFU ZHANG

 

ADDRESS                             School of Meteorology

University of Oklahoma

120 David L. Boren Blvd., Suite 5900

Norman, OK  73072-7307

Ph: (405) 325-3507     Fax: (405) 325-7689

E-mail: guzhang1@ou.edu                                                                                 

EDUCATION

         1996 – 1998    Ph.D. Electrical Engineering, University of Washington, Seattle, WA

Detection and Imaging of Targets in the Presence of Clutter Based on Angular Correlation Function (Advisor: Leung Tsang)

         1982 – 1985    M.S.  Radio Physics, Wuhan University, China

Scattering Effects in Radiometer Measurements of Rain Attenuation and Determination of Effective Temperature (Advisors: Xianling Long&Huanju Li)

         1978 – 1982    B.S.   Physics, Anhui University, China

 

PROFESSIONAL EXPERIENCE

Chronological

2012 – present  Professor, School of Meteorology, University of Oklahoma, USA         

2012 – present  Adjunct Professor, School of Electrical and Computer Engineering, University of Oklahoma, USA 

2005 – 2012     Associate Professor, School of Meteorology, University of Oklahoma, USA 

 2004 – 2005     Scientist II, National Center for Atmosphere Research, USA

        2001 – 2004     Scientist I, National Center for Atmosphere Research, USA

        1999 – 2000     Project Scientist I, National Center for Atmosphere Research, USA

        1998 – 1999     Visitor, National Center for Atmosphere Research, USA

        1996 – 1998     Research Assistant, Dept. of EE, University of Washington, Seattle, USA

        1993 – 1995     Visiting Scientist, Dept. of EE, University of Washington, Seattle, USA

        1990 – 1993     Associate Professor, Space Physics Dept., Wuhan University, China

        1989 – 1990     Visiting Scholar, Communication Research Laboratory, Japan

        1985 – 1989     Instructor, Space Physics Dept., Wuhan University, China

Current Research Interests

         – Wave propagation and scattering in geophysical media

         – Remote sensing for understanding and quantifying weather and earth environment

– Radar polarimetry for quantitative precipitation estimation and forecast 

– Phased array radar interferometry to measure wind, shear, and turbulence

– Formulation, design and calibration of polarimetric phased array radar for multi-missions

– Cloud/precipitation microphysics and parameterization

 

MEMBERSHIPS AND AWARDS

  Fellow, Cooperative Institute for Mesoscale Meteorological Studies (CIMMS)

   Senior Member, Institute of Electrical and Electronics Engineers (IEEE)

        – Member, American Meteorological Society (AMS)

        – Member, American Geophysical Union (AGU)

        – Member, International Union of Radio Science (URSI)

        – Nomination for UCAR Outstanding Publication Award (2004) 

        – Young Scientist Funding Award from Chinese Natural Science Foundation (1990)

        – Excellent Paper Award from Chinese Electronics Society (1990)

        – Excellent Young Professor Award from Wuhan University (1989)

– Fellowship of Matsumae International Foundation (1989)

    

SERVICE/ACTIVITIES

University          

On search committees for radar initiative positions and for SoM director

On NWC library committee

Department       

Chair of faculty search committee (2014-2015)

Research liaison for OU/SoM (2010-)

On undergraduate committee (2006-2010), reviewed applications for scholarships

– Reviewed manuscripts/papers for Sasaki award and Craighead awards

Professional

– Reviewer for National Science Foundation

– Reviewer for Annales Geophysicae

– Reviewer for Atmospheric Research

– Reviewer for Geophysical Research Letters

– Reviewer for IEEE Transactions on Aerospace and Electronic Systems

– Reviewer for IEEE Transactions on Antenna and Propagation

– Reviewer for IEEE Transactions on Geoscience and Remote Sensing

– Reviewer for Journal of Applied Meteorology (and Climatology)

– Reviewer for Journal of Atmospheric and Oceanic Technology

– Reviewer for Radio Science

– Reviewer for Waves in Random Media

– On editorial board of Chinese Journal of Radio Science, 1992-1993

– Technical committee, IGARSS'98, Seattle, WA, 1998

 – On committee for faculty promotion, Space Phys. Dept., Wuhan University, 1991-1993

        – Guest Professor, Wuhan University, China, 2005 – present

– On PhD advisory committee for ECE Dept., Purdue University, 2010-present

– Organized and co-chaired special sessions of Radar Remote Sensing of Precipitation for URSI'10&11.

 

 

PUBLICATIONS

Refereed Journal Publications

 (Total number of citations at 1913 with h-index of 25 from ISI Web of Knowledge. Google scholar citations(https://scholar.google.com/citations?hl=en&user=WnpO1kQAAAAJ) of 3460 and h-index of 30. No attempt has been made to remove self-citations.)

  

 

  

1.   Borowska, L., G. Zhang, and D.S. Zrnic, 2015: Spectral processing for step scanning Phased Array Radars, Submitted to IEEE Trans. On Geoscience and Remote Sensing..

2.   Borowska, L., G. Zhang, and D.S. Zrnic, 2015: Considerations for oversampling in azimuth on the phased array weather radar.  J. Atmos. Oceanic Tech, 32(9), 1614–1629.

3.  Zhang, G., 2015: Comments on "Describing the Shape of Raindrop Size Distributions Using Uncorrelated Raindrop Mass Spectrum Parameters" J. Appl. Meteor. Climat., 54(9), 1970–1976.

4.    Lei, L., G.  Zhang, R. Doviak, and S. Karimkashi, 2015: Comparision of theoretical biases in estimating polarimetric properties of precipitation with weather radar using parabolic reflector, or planar and cylindrical arrays, IEEE Trans. On Geosci. Remote Sensing, 53(8), 4313-4327.    

5.  Karimkashi, S., and G. Zhang, 2015: Optimizing radiation patterns of a cylindrical polarimetric phased-array radar for multimissions, IEEE Trans. On Geoscience and Remote Sensing  53(5), 2810-2818.   

6.  Bokuvcic, P., D. S. Zrnic, and G. Zhang, 2015: Convective-Stratiform Separation Characterized by Video Disdrometer and Polarimetric Radar Observations – The Bayesian Approach,  Atmospheric Research, DOI: 10.1016/j.atmosres.2014.12.002

7.   Mahale, V., G. Zhang, M. Xue, 2014: Fuzzy Logic Classification of S-Band Polarimetric Radar Echoes to Identify Three-Body Scattering and Improve Data Quality, J. Appl. Meteor. Climat., 53(8), 2017-2033

8.   Wainwright, C., M. Xue, G. Zhang and D. Dawson, 2014: The Impact of Diagnosing the Intercept Parameter of the Exponential Drop Size Distribution on Convective Storm Forecasts, J. Appl. Meteor. Climat., 53(8), 2072-2090.

9.   Putnam, B. J., M. Xue, Y. Jung, N. A. Snook, and G. Zhang, 2014: The analysis and prediction of microphysical states and polarimetric variables in a mesoscale convective system using double-moment microphysics, multi-network radar data, and the ensemble Kalman filter. Mon. Wea. Rev., 142(1), 141-162.

10.    Bodine, D., R. D. Palmer, and G. Zhang, 2014: Dual-wavelength polarimetric radar analyses of tornadic debris signatures. J. Appl. Meteor. Climatol., 53(2), 242-261.

11.    Li, Y., G. Zhang, and R.J. Doviak, 2014: Ground Clutter Detection using the Statistical and Physical Properties of Signals Received with a Polarimetric Radar, IEEE Trans. On Signal Processing, 62(2), 597-606

12.    Kurdzo, J. M., B. Cheong, R. Palmer, G. Zhang, J.  Meier, 2014: A Pulse Compression Waveform for Improved-Sensitivity Weather Radar Observations, J. Atmos. Ocean. Tech., 31(12). 2713-2731.

13.    Karimkashi, K., A. Kishk, D. Kaifez, G. Zhang, 2013: Focusing properties of ultra wideband transient arrays, Progress In Electromagnetic Research B, 56, 387-407.

14.    Cao, Q., G. Zhang, and M. Xue, 2013: A variational approach for retrieving raindrop size distribution from polarimetric radar measurments in the presence of attenuation, J. Appl. Meteor. Climat. 52(1), 169-185.

15.    Karimkashi, S., and G. Zhang, 2013: A Dual-Polarized Series-Fed Microstrip Antenna Array with very High Polarization Purity for Weather Measurements, IEEE Trans. on Antenna and Propagation, 61(10), 5315-5319.

16.    Karimkashi, S., G. Zhang, A. Kishk, W. Bocangel, R. Kelley, J. Meier, and R. Palmer 2013: Dual-Polarization Frequency Scanning Microstrip Array Antenna with Low Cross-Polarization for Weather Measurements, IEEE Trans.  Antennas and Propagation, 61(11), 5444-5452.

17.     Wen, Y., Q. Cao, P. Kirstetter, Y. Hong, J. J. Gourley, J. Zhang, G. Zhang, and B. Yong, 2013: Incorporating NASA space-borne precipitation research products into NOAA National Mosaic QPE system for improved precipitation measurement: Comparison of statistical correction approaches and a physically based VPR identification and enhancement method, Journal of Hydrometeorology, 14(4), 1293-1307

18.    Li, Y., G. Zhang, R.J. Doviak, and D. S. Saxion, 2013: A Bayesian algorithm to separate precipitation from ground clutter using scan-to-scan correlation, IEEE Geoscience and Remote Sensing Lett. 10(4), 855-859.

19.  Cao, Q., G. Zhang, R. Palmer, M. Knight, R. May, and R. Stafford, 2012: Spectrum-Time Estimation and Processing (STEP) for improving weather radar data quality, IEEE Trans. on Geoscience and Remote Sensing. 50(11), 4670-4683.

20.    Shen, X. Y., Q. Qin, Y. Hong, G. Zhang, 2012: A Matrix Inversion Approach of T-matrix Calculation for Axially Symmetric Particles of Extreme Shape and Dielectrically Large Dimension, Radio Science. 45(18), doi:10.1029/2011RS004906.

21.    Shen, X. Y., Q. Qin, Y. Hong, G. Zhang, and W. Yuan, 2013: Bare surface soil moisture estimation using double-angle and dual-polarization L-band Radar data, Submitted to IEEE Trans. on Geoscience and Remote Sensing, 51(7), 3931-3942

22.    Lei, L., G. Zhang, R. J. Doviak, 2013: Bias correction for polarimetric phased array radar with aperture and patch antenna elements, submitted to IEEE Trans. on Geoscience and Remote Sensing, 51(1), 473-486.

23.   Karimkashi, S., A. Kishk and G. Zhang, 2012: Modeling of Aperiodic Array Antennas Using Infinitesimal Dipoles, submitted to IET Microwaves, Antennas and Propagation, 6(7), 761-767, doi:10.1049/iet-map.2011.0402.

24.  Yeary, M., G. Crain, A. Zahrai, C. Curtis, J. Meier, R. Kelley, I. Ivic, R. Palmer, D. Doviak, G. Zhang, T. Yu, 2012: Multichannel Receiver Design, Instrumentation, and First Results at the National Weather Radar Testbed, IEEE Trans. on Instrumentation and Measurement, 61(7), 2022-2033, doi:10.1109/TIM.2011.2178671.

25.  Karimkashi, S., and G. Zhang, 2012: An Optimal Design for a Cylindrical Polarimetric Phased Array Radar for Weather Sensing, Radio Science, 47(10), RS2017, doi:10.1029/2011RS004753.

26.   Li, Y., G. Zhang, and R.J. Doviak, 2013: A new approach to detect ground clutter in weather radar observations, IEEE Trans. on Geoscience and Remote Sensing, 51(4), 2373-2387.

27.   Lei, L., G. Zhang, R. J. Doviak, R. D. Palmer, B. L. Cheong, M. Xue, 2012: A multi-lag correlation estimator for polarimetric radar variables in the presence of noise, J. Atmos. Ocean. Tech., 29(6). 772-795, doi:10.1175/JTECH-D-11-00010.1.

28.   Cao, Q., G. Zhang, R. Palmer, 2012: Detection and mitigation of second trip echo for polarimetric weather radar employing a magnetron transmitter, IEEE Trans. on Geoscience and Remote Sensing, 50(4), 1240-1253, doi:10.1109/TGRS.2011.2164927.

29.  Wen, Y., Y. Hong, G. Zhang, T. Schuur. J. Gourley, Z. Flaming, R. Morris and Q. Cao, 2010: Cross validation of space-borne radar and ground polarimetric radar aided by polarimetric echo classification of hydrometeor types, J. Appl. Meteor. Climat. 50(7), 1389-1402.

30.  Palmer, R.D., D. Bodine, M. Kumjian, B. Cheong, G. Zhang, Q. Cao, H. Bluestain, A. Ryzhkov, T. Yu, and Y. Wang, 2011: The 10 May 2010 tornado outbreak in central Oklahoma: Potential for new science with high-resolution polarimetric radar, Bull. Amer. Meteor. Soc., 92(7), 871-891, (3)

31.  Cao, Q., M. Yeary, and G. Zhang, 2012: Efficient ways of learning weather radar polarimetry, IEEE Trans. on Education, 54(5), doi:10.1109/TE.2011.2118211, ().

32.  Doviak, R. J., L. Lei, G. Zhang, J. Meier, and C. Curtis, 2011: Comparing theory and measurements of cross-polar fields emitted a phased array antenna, IEEE Geoscience and Remote Sensing Letters, 8(9), 1002-1006.

33.  Li, ZZ, Y. Zhang, G. Zhang. K. Brewster, 2011: A Microphysics-Based Simulator for Advanced Airborne Weather Radar Development, IEEE Trans.  on  Geoscience and Remote Sensing, Volume: 49(4), 1356-1373, (2). 

34.  Zhang, G., R. J. Doviak, D. S. Zrnic, R. D. Palmer, L. Lei, Y. Al-Rashid, 2011: Polarimetric Phased Array Radar for Weather Measurement: A Planar or Cylindrical Configuration? J. Atmos.  Ocean. Tech., 28(1), 63-73, (3).

35.  Zrnic, D.S., G. Zhang, and R. J. Doviak, 2011: Bias Correction and Doppler Measurement for Polarimetric Phased Array Radar, IEEE Trans. on Geoscience and Remote Sensing, 40(2), 843-853, (2).

36.  Zhang, G., Y. Li, R. J. Doviak, D. Priegnitz, J. Carter, and C. Curtis, 2011: Multi-patterns of the National Weather Radar Testbed Mitigate Clutter Received via Sidelobes, J. Atmos.  Ocean. Tech., 28(3), 401-409, (2).

37.  Zhang, G., S. Luchs, A. Ryzhkov, M. Xue, L. Ryzhkova, and Q. Cao, 2011: Winter precipitation microphysics characterized by polarimetric radar and video disdrometer observations in central Oklahoma, J. Appl. Meteor. Climat., 50(7), 1558-1570.

38.  Snyder, J. C., H. B. Bluestein, G. Zhang, S. J. Frasier, 2010: Attenuation correction and hydrometeor classification of high-resolution, X-band, dual-polarized mobile radar measurements in severe convective storms, J. Atmos. Ocean. Tech., 27(12), 1979-2001, (6).

39.  Zrnic, D., R. J. Doviak, and G. Zhang, and A. Ryzhkov, 2010: Bias in differential reflectivity due to cross coupling in the simultaneous horizontal/vertical polarization mode, J. Atmos. Ocean. Tech, 27(10), 1624-1637, (8).

40.  Zrnic, D., G. Zhang, V. Melnikov, J. Andric, 2010: Three body scattering and hail size, J. Appl. Meteor. Climat., 49(4), 687-700, (2).

41.  Cao, Q., G. Zhang, E. Brandes, and T. Schuur, 2010: Polarimetric radar rain estimation through retrieval of drop size distribution using a Bayesian approach, J. Appl. Meteor. Climat., 49(5), 973-990, (3).

42.  Yeary, M., T.Y. Yu, R. Palmer, H. Monroy, I. Ruin, G. Zhang, P. Chilson, M. Biggerstaff, G. Weiss, K. Mitchell, and L. D. Fink, 2010: Working together for better student learning: A multi-university, multi-federal partner program for asynchronous learning module development for radar based remote sensing systems, IEEE Trans. on Education, 53(3), 504-515, ().

43.  Zhang, Y., A.  Huston, M. Mallo and G. Zhang, 2010: A scatterometer system for laboratory study of polarimetric electromagnetic signatures of icy hydrometeors, IEEE Transactions on Instrumentation and Measurement. 59(3), 671-681, (1).

44.  Xue, M., Y. Jung, G. Zhang, 2010: State Estimation of Convective Storms with a Two-Moment Microphysics Scheme and an Ensemble Kalman Filter: Experiments with Simulated Radar Data, Quarterly Journal of Royal Meteorological Society, 136(684), 685-700, (1).

45.  Jung, Y., M. Xue, and G. Zhang, 2010a: Simulations of polarimetric radar signatures of a supercell storm using a two-moment bulk microphysics scheme. J. Appl. Meteor. Climat., 49(1), 146-163, (7).

46.  Jung, Y., M. Xue, and G. Zhang, 2010b: Simultaneous estimation of microphysical parameters and atmospheric state using simulated polarimetric radar data and ensemble Kalman filter in the presence of observation operator error. Mon. Wea. Rev., 138(2),539-562, (3).

47.  Le, K. D., R. D. Palmer, B. L. Cheong, T.-Y. Yu, G. Zhang, and S. M. Torres, 2010: Reducing the effects of noise on atmospheric imaging radars using multi-lag correlation, Radio Science, 45(1), 272-284.

48.  Zhang, G., R. J. Doviak, D. S. Zrnic, J. E. Crain, D. Staiman, and Y. Al-Rashid, 2009: Phased array radar polarimetry for weather sensing: A theoretical formulation for polarization calibration. IEEE Trans. on Geoscience and Remote Sensing, 47(11), 3679-3689, (13).

49.  Palmer, R.D., M. Biggerstaff, P. Chilson, J. Crain, K. Droegemeier, Y. Hong, M. Yeary, T. Yu, G. Zhang, Y. Zhang, 2009: Weather radar education at the University of Oklahoma: An Integrated interdisciplinary approach, Bull. Amer. Meteor. Soc., 90(9), 1277-1282, (2).

50.  Xue, M., M. Tong, and G. Zhang, 2009: Simultaneous state estimation and attenuation correction for thunderstorms with radar data using an Ensemble Kalman Filter: Tests with simulated data , Quart. J. Royal Meteor. Soc., 135(643), 1409-1423, (7).

51.  Cao, Q., and G. Zhang, 2009: Errors in estimating raindrop size distribution parameters employing disdrometer and simulated raindrop spectra, J. Appl. Meteor. Climat, 48(3), 406-425, (7).

52.  Le, K. D., R. D. Palmer, B. L. Cheong, T.-Y. Yu, G. Zhang, and S. M. Torres, 2009: On the use of auxiliary receive channels for clutter mitigation with phased array weather radars, IEEE Transactions on Geoscience and Remote Sensing, 47(1), 272-284, (7).

53.  Zhang, G., M. Xue, Q. Cao, and D. Dawson, 2008: Diagnosing the intercept parameter for exponential raindrop size distribution based on video disdrometer observations: Model development, J. Appl. Meteor. Climat, 47(11), 2983–2992, (12).

54.  Zhang, G., and R. J. Doviak, 2008: Spaced antenna interferometry to detect and locate subvolume inhomogeneities of reflectivity: an analogy with monopulse radar, J. Atmos. Ocean. Tech., 25(11), 1921–1938, (9).

55.  Cao, Q., G. Zhang, E. Brandes, T. Schuur, A. Ryzhkov, and K. Ikeda, 2008: Analysis of video disdrometer and polarimetric radar data to characterize rain microphysics in Oklahoma. J. Appl. Meteor. Climat., 47(8), 2238-2255, (18).

56.  Jung, Y., G. Zhang, and M. Xue, 2008: Assimilation of simulated polarimetric radar data for a convective storm using ensemble Kalman filter. Part I: Observation operators for reflectivity and polarimetric variables. Mon. Wea. Rev., 136(6), 2228–2245, (19).

57.  Jung, Y., M. Xue, G. Zhang, and J. Straka, 2008: Assimilation of simulated polarimetric radar data for a convective storm using ensemble Kalman filter. Part II: Impact of polarimetric data on storm analysis. Mon. Wea. Rev., 136(6), 2246–2260, (16).

58.  Xue, M., Y. Jung, and G. Zhang, 2007: Error modeling of simulated reflectivity observations for ensemble Kalman filter data assimilation of convective storms. Geophys. Res. Letters, 34, L10802, doi:10.1029/2007GL029945, (7).

59.  Brandes, E., K. Ikeda, G. Zhang, M. Schönhuber, and R. M. Rasmussen, 2007: A statistical and physical description of hydrometeor distributions in colorado snowstorms using a video disdrometer, Accepted and to appear in J. Appl. Meteor. Climat., 46(5), 634-650, (36).

60.  Zhang, G., and R.J. Doviak, 2007: Spaced antenna interferometry to measure crossbeam wind, shear, and turbulence: Theory and formulation,  J. Atmos. Ocean. Tech., 24(5), 791-805, (15).

61.  Zhang, G., J. Sun, and E. A. Brandes, 2006: Improving parameterization of rain microphysics with disdrometer and radar observations. J. Atmos. Sci., 63 (4): 1273-1290, (17).

  1. Brandes, E., G. Zhang, and J. Sun, 2006: On the influence of assumed drop size distribution form on radar-retrieved thunderstorm microphysics, J. Appl. Meteor. Climat., 45(2), 259-268, (5) 
  2. Yu, T., G. Zhang, A. B. Chalamalasetti, R. J. Doviak, and D. Zrnic, 2006: Resolution enhancement using range oversampling, J. Atmos. Ocean. Tech.. 23(2), 228-240, (7).

64.  Zhang, G., T. Yu, and R. J. Doviak, 2005: Angular and range interferometry to refine weather radar resolution, Radio Science, 40(3), RS3013, doi:10.1029/2004RS003125, (2).

65.  Zhang, G., R. Doviak, J. Vivekanandan, W. Brown, and S. A. Cohn, 2004: Performance of correlation estimators for spaced antenna wind measurement in the presence of noise,   Radio Science, 39(3), RS3017, doi:10.29/2003RS003022, (2).

66.  Brandes, E., G. Zhang, and J. Vivekanandan, 2004: Drop size distribution retrieval with polarimetric radar: model and application,  J. Appl. Meteor., 43(3),  461-675, (44).

67.  Brandes, E., G. Zhang, and J. Vivekanandan, 2004: Comparison of polarimetric radar drop size distribution retrieval algorithm, J. Atmos. Ocean. Tech., 21(4), 576-590, (32).

68.  Vivekanandan, J., G. Zhang, and E. Brandes,  2004: Polarimetric radar rain estimators based on constrained Gamma drop size distribution model, J. Appl. Meteor., 43(2), 217-230, (31).

69.  Doviak, R. J., G. Zhang, S. A. Cohn, and W. Brown, 2004: Comparison of spaced-antenna wind estimators: Theoretical and simulation results, Radio Science, 39(1), RS1006, doi:10.1029/2003RS002931, (1).

70.  Zhang, G., R. Doviak, J. Vivekanandan, and T. Yu, 2003: Angular and range interferometry to measure wind, Radio Science, 38 (6): Art. No. 1106, (2).

71.  Zhang, G., J. Vivekanandan, E.A. Brandes, R. Meneghini, and T. Kozu, 2003: The shape-slope relation in Gamma raindrop size distribution: statistical error or useful information?, J. Atmos. Ocean. Tech., 20 (8), 1106-1119, (36).

72.  Brandes, E., G. Zhang, and J. Vivekanandan, 2003: An evaluation of a drop distribution-based rainfall estimator, J. Appl. Meteor., 42(5), 652-660, (51).

73.  Zhang, G., R. Doviak, J. Vivekanandan, W. Brown, and S. A. Cohn, 2003: Cross-correlation ratio method to estimate cross beam wind and comparison with the full correlation analysis, Radio Science, 38(3), Art. No. 8052, doi:10.1029/2002RS002682, (13).

74.  Vivekanandan, J., G. Zhang, and S.M. Ellis, 2003: Radar reflectivity calibration using differential propagation phase measurement.  Radio Science, 38(3), 8050, doi:10.1029/2002RS002673, (12).

75.  Brandes, E., G. Zhang, and J. Vivekanandan, 2002: Experiments in rainfall estimation with a polarimetric radar in a subtropical environment, J. Atmos. Meteor.,  41(6), 674-685, (104).

76.  Zhang, G., J. Vivekanandan, and E. Brandes, 2002: Effects of random inhomogeneity on radar measurements and rain rate estimation. IEEE Trans. on Geoscience and Remote Sensing, 40(1), 223-227, (5).

77.  Zhang, G., J. Vivekanandan, and E. Brandes, 2001: A method for estimating rain rate and drop size distribution form polarimetric radar measurements. IEEE Trans. on Geoscience and Remote Sensing, 39(4), 831-841, (74).

78.  Vivekanandan, J., G. Zhang, M. K. Politovich, 2001: An assessment of droplet size and liquid water content derived from dual-wavelength radar measurements to the application of aircraft icing detection.  J. Atmos. Oceanic. Technol., 18(11), 1787-1798, (16).

79.  Vivekanandan, J., B. Martner, M.K. Politovich, and G. Zhang, 2000: Aircraft icing detection using dual-wavelength radar observations. IEEE Trans. on Geoscience and Remote Sensing, 37(5), 2325-2334, (23).

80.  Zhang, G., L. Tsang, and K. Pak, 1998: Angular correlation function and scattering coefficient of electromagnetic wave scattered by a buried object under a two-dimensional rough surface. Journal of the Optical Society of America A., 15(12), 2995-3002, (32).

81.  Kuga, Y., G. Zhang, J. Yea, and A. Ishimaru, 1998: Millimeter wave experiments on angular correlation function of waves scattered from randomly distributed cylinders. Radio Science, 33(6), 1505-1516, ()

82.  Zhang, G. and L. Tsang, 1998: Application of angular correlation function of clutter scattering and correlation imaging in the target detection. IEEE Trans. on Geoscience and Remote Sensing, 36(5), 1485-1493, (20).

83.  Kuga, Y., G. Zhang, J. Yea, and A. Ishimaru, 1998: Analytical and numerical studies of angular correlation function of waves scattered from randomly distributed cylinders. Waves in Random Media, 8(3), 269-281, (1).

84.  Zhang, G., L. Tsang, and Y. Kuga, 1998: Numerical studies of the detection of targets in clutter by Using Angular Correlation Function and Angular Correlation Imaging. Microwave and Optical Technology Letters, 17(2), 82-86, (3).

85.  Zhang, G. and L. Tsang, 1997: Angular correlation function of wave scattering by a random rough surface and discrete scatterers and its application in the detection of a buried object. Waves in Random Media, 7(3), 467-478, (6).

86.  Zhang, G., L. Tsang, and Y. Kuga, 1997: Studies of angular correlation function of scattering by random rough surface with and without a buried object. IEEE Trans. Geoscience and Remote Sensing, 35(2) 444-453, (22).

87.  Zhang, G., T. Tsang, and Y. Kuga, 1997: The angular correlation function of wave scattering by a buried object embedded in random discrete scatterers under a random rough surface. Microwave and Optical Technology Letters, 14(3), 144-151, (8).

88.  Tsang, L., G. Zhang, and K. Pak, 1996: Detection of a buried object under a single random rough surface with angular correlation function in EM wave scattering.  Microwave and Optical Technology Letters, 11(6), 300-304, (21).

89.  Zhang, G., L. Tsang, and Z. Chen, 1996: Collective scattering effects of tree generated by Stochastic Lindenmayer systems. Microwave and Optical Technology Letters, 11(2), 107-111, (8).

90.  Tsang, L., K. H. Ding, G. Zhang, C. Hsu, and J. A. Kong, 1995: Backscattering enhancement and clustering effects of randomly distributed dielectric cylinders overlying a homogeneous dielectric half-space based on Monte-Carlo simulations. IEEE Trans. Antenna & Propagation, 43(5), 488-499, (38).

91.  Chen, Z., L. Tsang, and G. Zhang, 1995: Microwave scattering by vegetation based on wave approach and stochastic Lindenmayer system. Microwave and Optical Technology Letters,  8(1), 30-33, (8).

92.  Zhang, G., J. Hou, S. Ito and T. Oguchi, 1990: Optical wave propagation in random medium composed of both turbulence and particles. Journal of Communication Research Laboratory, 37(151/152), 43-62, ().

 

Refereed Journal Publications in Chinese

93.  Huang, F., and G. Zhang, 1993: Wave beam propagation in composite random medium, Chinese Journal of Radio Science, 8(4), 42-50.

94.  Yang, H., G. Zhang, 1991: Correlation function of waves in a composite random medium. Chinese Journal Of Radio Science, 6(3), 42-49.

95.  Zhang, G. and J. Hou, 1991: The correlation and spectrum of scattered wave by a composite random medium. Journal of Wuhan University (Special issue on wave propagation), pp 72-78.

96.  Zhang, G. and J. Hou, 1990: The second moment of wave field in composite random medium. Journal of Wuhan University (Natural science edition), 47-56.

97.  Hou, J. and G. Zhang, 1989: Wave propagation in composite random medium.  Journal of Wuhan University (Natural science edition), 31-38.

98.  Hou, J. and G. Zhang, 1988: A study of pulse parameter in random medium. Journal of Wuhan University (Natural science edition), 65-72.

99.  Zhang, G., and J. Hou, 1987, The correlativity of pulse train propagation in random medium, Chinese Journal of Radio Science, 2(1), 17-25.

100.  Zhang, C., H. Li, G. Zhang, R. Huang, and R. Yan, 1987: Rain attenuation on earth-space path at 12GHz - Summary of 3 years. Journal of Wuhan University (Natural science edition), 45-52.

 

Non-referred Journal Article

Palmer, R.D., G. Zhang, M. Biggerstaff, P. B. Chilson, J. Crain, S. Torres, M. Yeary, T.Y. Yu, Y. Zhang, Atmospheric Radar Research Center - ARRC, University of Oklahoma, USA, IEEE Geoscience and Remote Sensing Society Newsletter, 2007

 

Book

       Zhang, G., Weather Radar Polarimetry, CRC Press, 2016.

 

Book Chapter

1.     Chen, Z., L. Tsang, and G. Zhang, 1996: Application of stochastic Lindenmayer systems to study collective and cluster scattering in microwave remote sensing of vegetation. Progress in Electromagnetics Research, EMW Publishers, Cambridge, Massacusetts, 14, 233-277.

2.     Cao, Q., and G. Zhang, 2012: Radar Polarimetry for Rain Estimation, Multiscale Hydrologic Remote Sensing: Perspectives and Applications Edited by N. Chang and Y. Hong. (pp. 303-334). Taylor & Francis. ISBN: 978-1-4398-7745-6. doi: 10.1201/b11279-18

 

Patent Awards

1.     Zhang, G., R. Palmer, R. J. Doviak, and D. Zrnic, A patent #8988274 of "Cylindrical Polarimetric Phased Array Radar" awarded by US patent office, 24 March 2015.

2.     Zhang, G., J. Vivekanandan, R. J. Doviak, A patent #6721678 of "Cross-correlation method for estimating 3-D wind field" awarded by US patent office, 2003.

3.     Vivekanandan, J., and G. Zhang, A patent #6536948 of "Microwave Radar Technique for Retrieving Temperature" awarded by US patent office, 2002.

 

Intellectual Property Disclosures

1.     Zhang, G., D. Zrnic, and L. Borowska "Joint Signal Processing for High Efficiency in MPAR Design and Development" OU Intellectual Property Disclosure (#15NOR003), 14 July, 2014.

2.     Zhang, G., "MPAR Scan Strategy with Hybrid Waveforms" OU Intellectual Property Disclosure (#14NOR014), 11 October, 2013.

3.     Kurdzo, J., B. Cheong, R. Palmer, and G. Zhang, "Optimized pulse compression waveform for high-sensitivity radar observations" OU Intellectual Property Disclosure (#13NOR022), 26 October, 2012.

4.     Lakshmanan, V., and G. Zhang, "Combining communication signals and radar measurements to better monitor communication and weather conditions" OU Intellectual Property Disclosure (#12NOR049), 10 May 2012

5.     Karimkashi, S, and G. Zhang, "Dual-polarization Frequency Scanning Microstrip Antenna", OU Intellectual Property Disclosure (#12NOR048), 4 May 2012.

6.     Zhang, G., R. J. Doviak, and Y. Li, "Scan-to-scan method to improve radar data quality by detecting and removing clutter" OU Intellectual Property Disclosure (#12NOR027), 30 January 2012

7.     Zhang, G. and R.D. Palmer, " Multiple interval Spectrum-Time Estimation and Processing (Multi-STEP) for radar signals" OU Intellectual Property Disclosure (#11NOR001), 8 July 2010

8. Zhang, G., R.D. Palmer, D.S. Zrnic and R. J. Doviak, "A cylindrical polarimetric phased array radar" OU Intellectual Property Disclosure (#10NOR014, 28 October 2009), US provisional patent filed, 2009; US patent application (#12947523), 2010.

9. Zhang, G., R. J. Doviak, D.S. Zrnic, and J. E. Crain,  "A calibration algorithm for phased array radar polarimetry" OU Intellectual Property Disclosure (#09NOR005), 28 July 2008.

10. Kuga, Y., and G. Zhang, ``SAR scene images of trees generated by Lindenmayer systems'', submitted to DEMACO Inc., July 31, 1996.

11. Kuga, Y., and G. Zhang, ``Light scattering from a spherical particle embedded in a SiO2   layer'', submitted to KLA Instruments Corporation, May 22, 1995.

 

Conference Presentations/Papers

  1. Zrnic, D., L. Borowska, G. Zhang, and C. D. Curtis, Beam multiplexing of spaced pulse pairs at upper elevation scans for multifunction phased array, AMS Annual Meeting/ 31st Conference on Environmental Information Processing Technologies, Phoenix, AZ, 4-8 January, 2015.
  2. Borowska, L.,G. Zhang and D. Zrnic, Demonstration of Super-resolution Measurements with Phased Array Radar, AMS Annual Meeting/ 31st Conference on Environmental Information Processing Technologies, Phoenix, AZ, 4-8 January, 2015.
  3. Zhang, G.,, D. Zrnic, L. Borowska, and Y. Al-Rashid, Hybrid Scan and Joint Signal Processing for A High Efficient MPAR, AMS Annual Meeting/ 31st Conference on Environmental Information Processing Technologies, Phoenix, AZ, 4-8 January, 2015.
  4. Fulton, C., J. Meier, R. Kelley, S. Karimkashi, M. McCord, I. Meier, G. Zhang, R. Palmer, A. Zahrai, D. Schmidt, R. J. Doviak, D. Zrnic, L. Bhowmik, and A. Byrd, Cylindrical Polarimetric Phased Array Radar Demonstrator, AMS Annual Meeting/ 31st Conference on Environmental Information Processing Technologies, Phoenix, AZ, 4-8 January, 2015.
  5. Supinie,T., D. T. Dawson II and Y. Jung A Python-Based Plotter for Model-Derived Polarimetric Radar Variables AMS annual meeting/ Fifth Symposium on Advances in Modeling and Analysis Using Python, Phoenix, AZ, 4-8 January, 2015.
  6. Mahale, V.N., G. Zhang, and M. Xue, 2014: Fuzzy Logic Classification of S-band Polarimetric        Radar Echoes to Identify Three-Body Scattering and Improve Data Quality. Center for the Analysis and Prediction of Storms 25th Anniversary, Norman, OK.; 06/02/2014.
  7. Karimkashi, S., G. Zhang, Dual-Polarized Series-Fed Frequency Scan Microstrip Array Antenna with High Polarization Purity, APS/URSI, 2013
  8. Zhang, G., S. Karimkashi, L. Lei, R. Kelley, J. Meier, R. Palmer, C. Futon, R. Doviak, A. Zahrai, and D. Zrnic,  Cylindrical Polarimetric Phased Array Radar Concept: A Path to Multi-mission Capability, IEEE International Symposium on Phased Array Systems & Technology, Boston, 2013
  9. Fulton, C., G. Zhang, S. Karimkashi, W. Bocangel, L. Lei, R. Kelley, M. McCord, Cylindrical Polarimetric Phased Array Radar Calibration Efforts for a Multi-Function Demonstrator, COMCAS, 2013
  10. R. Kelly, J. Meier, S. Karimkashi, M. McCord, G. Zhang, R. Palmer, A. Zahrai, R. J. Doviak, D. S. Zrnic, Cylindrical Polarimetric Phased Array Radar: Hardware Design and Mobile Demonstrator, IEEE International Symposium on Phased Array Systems & Technology, Boston, 2013
  11. S. Karimkashi, G. Zhang, R. Kelley, J. Meier, R. Palmer, A. Zahrai, R. J. Doviak, and D. S. Zrnic, Cylindrical Polarimetric Phased Array Radar:  Design and Analysis of a Frequency Scanning Antenna Array 2013 IEEE International Symposium on Phased Array Systems & Technology, Boston, 2013. 
  12. Petar Bukovcic, d. Zrnic, and G. Zhang, Convective-Stratiform Separation Reviled by Video Disdrometer and Polarimetric Radar Observations – The Bayesian Approach, ISEC, Kyoto, Japan, October 3-5, 2013
  13.  Vivek N. Mahale, G. Zhang and M. Xue, Fuzzy Logic Classification of Three-Body Scattering from S-band Polarimetric Radar Measurements, AMS Conference on Radar Meteorology, Breckenridge, CO, September 16 - 20, 2013
  14. Bryan J. Putnam, M. Xue, G. Zhang, and Y. Jung Simulation of polarimetric radar variables from the CAPS Spring Experiment Storm Scale Ensemble Forecasts, AMS Conference on Radar Meteorology, Breckenridge, CO, September 16 - 20, 2013
  15. B. L. Cheong, J. M. Kurdzo, G. Zhang, and R. D. Palmer The Impacts of Multi-Lag Moment Processor on a Solid-State Polarimetric Weather Radar, AMS Conference on Radar Meteorology, Breckenridge, CO, September 16 - 20, 2013
  16. Yasser Al-Rashid, Lockheed Martin , Moorestown, NJ; and P. Bronecke, K. D. Hondl, F. Alessandro, and G. Zhang, Dual Polarized Slot Dipole Radiating Element Performance, AMS Conference on Radar Meteorology, Breckenridge, CO, September 16 - 20, 2013
  17. Y. Wen, Y. Hong, Q. Cao, G. Zhang, J. J. Gourley, J. Zhang, Z. Flamig, and P. E. Kirstetter Systematical Evaluation of VPR-Identification and Enhancement (VPR-IE) Approach: Incorporate Space-borne Radar into Ground Radar Network AMS Conference on Radar Meteorology, Breckenridge, CO, September 16 - 20, 2013
  18. Al-Rashid, Y. G. Zhang, 2013: Considerations and Selection of Polarization Mode for future Multi-mission Phased Array Radar (MPAR),  AMS annual meeting/29th CEIPT (IIPS), Austin, TX, 5-10 January, 2013.

19.  Mahale, Vivek N., and G. Zhang and M. Xue, 2013: Microphysics of the 14 June 2011 Norman, Oklahoma Downburst from Dual-polarization and Dual-Doppler Radar Measurements, AMS annual meeting/16th ARAM, Austin, TX, 5-10 January, 2013.

  1. Lei Lei, G. Zhang and R. J. Doviak, 2013: A Comparison of Planar and Cylindrical Configurations of Polarimetric Phased Array Radar for Weather Observation, AMS annual meeting/29th CEIPT (IIPS), Austin, TX, 5-10 January, 2013.
  2. Li, Y., G. Zhang and R. J. Doviak Dual-Scan and Dual-Polarization Measurements to Detect Ground Clutter mixed with Weather Signals Austin, AMS annual meeting/29th CEIPT (IIPS), Austin, TX, 5-10 January, 2013.
  3. Kurdzo, J., Advanced Radar Research Center, School of Meteorology, University of Oklahoma, Norman, OK; and B. L. Cheong, R. D. Palmer, G. Zhang, and J. B. Meier, An Optimized Pulse Compression Waveform for High-Sensitivity Weather Radar Observations, AMS annual meeting/29th CEIPT (IIPS), Austin, TX, 5-10 January, 2013.

23.  Putnam, B., M. Xue, Y. Jung, N. Snook, and G. Zhang, The Analysis and Prediction of Polarimetric Variables and Microphysical States of Convective Storms Using Double-Moment Microphysics, Multi-Network Radar Data, and the Ensemble Kalman Filter, AMS annual meeting/17th IOAS-AOLS, Austin, TX, 5-10 January, 2013

24.  Cao, Q., Y. Hong, G. Zhang, J. J. Gourley, P. E. Kirstetter, J. Zhang, A. Ryzhkov, and T. S. L'Ecuyer, 2013: Icing-related hazardous weather revealed by CloudSat and NMQ system: Potential for enhancing the hydrometeor classification in sub-freezing region, AMS annual meeting/27th Conference on Hydrology, Austin, TX, 5-10 January, 2013.

25.  Bukovcic, P., D. Zrnic, and G. Zhang, 2013: ClassificationWinter Storm Transition Revealed With Polarimetric Radar and 2DVD observation, USNC-URSI, Boulder, CO, 4-7 January, 2013

26.  Putnam, B., M. Xue, Y. Jung, N. Snook, and G. Zhang The analysis and prediction of microphysical states and polarimetric variables in a mesoscale convective system using double-moment microphysics, multi-network radar data, and the ensemble Kalman filter, Warn-on-Forecast and High Impact Weather Workshop, Norman, OK  8-9 February, 2012.

27.  Li, Y., G. Zhang, R. Doviak, Saxion, 2012: A Bayes algorithm to separate precipitation from ground clutter using scan-to-scan correlation technique, USNC-URSI, Boulder, CO, 4-7 January, 2012

28.  Bukovcic, P.,  D. Zrnic, and G. Zhang, 2012: Winter Storm Transition Revealed With Polarimetric Radar and 2DVD observation, USNC-URSI, Boulder, CO, 4-7 January, 2012

29.  Karimkashi, S., G. Zhang, 2012: Cross-Polarization Reduction of the Phased Array Radar for Precipitation Measurement, USNC-URSI, Boulder, CO, 4-7 January, 2012

30.  Lei, L. G. Zhang, and R. J. Doviak, 2012: Theoretical analysis of polarization characteristics for planar and cylindrical phased array radars, AMS annual meeting/27th Conference on IIPS, New Orlean, LA, 22-26 January, 2012.

  1. Li, Y., G. Zhang, R. J. Doviak, D. Priegnitz, and Curtis, C. D., 2012: Scan-to-scan correction of weather radar signals to identify ground clutter, Submitted to AMS annual meeting/27th Conference on IIPS, New Orlean, LA, 22-26 January, 2012.
  2. Kurdzo, J., J. Meier, R. Palmer, B. Cheong, and G. Zhang The Future of Pulse Compression Applications for Weather Radar, Submitted to AMS annual meeting/27th Conference on IIPS, New Orlean, LA, 22-26 January, 2012.
  3. Bocangel, W., R. Palmer, G. Zhang, J. Meier, C. Fulton, M. Harger, B. Chappell, A Test of Cylindrical Polarimetric Array Configuration Using the Digital Array Radar, Submitted to AMS annual meeting/27th Conference on IIPS, New Orlean, LA, 22-26 January, 2012.
  4. Zhang, G., L. Lei, S. Karimkashi, R. Palmer, R. J. Doviak, D. S. Zrnic, Y. Al-Rashid, Polarimetric Phased Array Radar: A dream for future weather observations, 2nd International Symposium On Earth-Science Challenges (ISEC), Norman, OK, 14-16 September 2011.
  5. Zhang, G., E. Brandes, and K. Ikeda, Instrumentation Effects on Estimated Drop Size Distribution and Radar Parameters, 35th Conference on Radar Meteorology, AMS, Omni William Penn Hotel, Pittsburgh, PA, 26-30 September 2011.
  6. Zhang, G., S. Luchs, and M. Xue, Melting models for winter precipitation microphysics, 35th Conference on Radar Meteorology, AMS, Omni William Penn Hotel, Pittsburgh, PA, 26-30 September 2011.
  7. Cao, Q., G. Zhang, R. D. Palmer, R. May, R. Stafford, M. Knight,  Spectrum-Time Estimation and Processing (STEP) for Improving Weather Radar Data Quality, 35th Conference on Radar Meteorology, AMS, Omni William Penn Hotel, Pittsburgh, PA, 26-30 September 2011.

38.  Karimkashi, S., A. Kishk, G. Zhang, Application of Invasive Weed Optimization in Designing Aperiodic Antenna Arrays using Dipole Models, IEEE AP-S International Symposium on Antennas and Propagation and 2011 USNC/URSI-Meeting, Spokane, Washington, 3-8 July, 2011.

39.  Karimkashi, S., and G. Zhang, Pattern Synthesis for Cylindrical Polarimetric Phased Array Weather Radar, IEEE AP-S International Symposium on Antennas and Propagation and 2011 USNC/URSI-Meeting, Spokane, Washington, 3-8 July, 2011.

40.  Zhang, G., R. J. Doviak, D. S. Zrnic, R. D. Palmer, L Lei, Y. Al-Rashid, Polarimetric Phased Array Radar for Weather Measurement: Issues and Solutions, IEEE Radar Conference, Kansas City, Missouri, 23-27 May, 2011

41.  Galletti, M., D. Zrnic, R.J. Doviak, G. Zhang, J. Crain CPPAR - Cylindrical Polarimetric Phased Array Radar - System Design, IEEE Radar Conference, Kansas City, Missouri, 23-27 May, 2011

42.  Lei L., G. Zhang, R. Doviak, Design and Simulations for a Cylindrical Polarimetric Phased Array Weather Radar, IEEE Radar Conference, Kansas City, Missouri, 23-27 May, 2011

  1. Cao, Q., G. Zhang, R. Palmer, L. Lei, A New Identification and Mitigation Algorithm for Second Trip Contamination, IEEE Radar Conference, Kansas City, Missouri, 23-27 May, 2011

44.  Li, Y., G. Zhang, R. Doviak, A New Approach to Detect the Ground Clutter Mixed with Weather Echoes, IEEE Radar Conference, Kansas City, Missouri, 23-27 May, 2011

45. Wen, Y., Y. Hong, J. Zhang, G. Zhang, J. Gourley, S. Chen, Incorporating NASA Space-Borne Precipitation Research Products Into National Mosaic QPE Operational System for Improved Precipitation Measurements, IEEE Radar Conference, Kansas City, Missouri, 23-27 May, 2011

46.  Wen, Y., Y. Hong, J. Zhang, G. Zhang, J.J. Gourley and S. Chen, Incorporating NASA space-borne precipitation research products into National Mosaic QPE operational system for improved precipitation measurements, USNC-URSI, Boulder, CO, 5-8 January, 2011.

  1. Lei, L., and  G. Zhang,  A design and simulation for cylindrical polarimetric phased array weather radar, USNC-URSI, Boulder, CO, 5-8 January, 2011.
  2. Li, Y., G. Zhnag, and R. J. Doviak, A new approach to detect ground clutter in weather radar measurements, USNC-URSI, Boulder, CO, 5-8 January, 2011.
  3. Bukovcnic, P., D. S. Zrnic, and G. Zhang, Convective versus stratiform rain microphysics characterized by video disdrometer and polarimetric radar observations, USNC-URSI, Boulder, CO, 5-8 January, 2011.
  4. Putnam, B. J., M. Xue, G. Zhang, Y. Jung, and N. Snook, Retrieving precipitation microphysical state of a convective system using radar data and the ensemble Kalman filter, USNC-URSI, Boulder, CO, 5-8 January, 2011.
  5. Kerr, C.,  G. Zhang, and P. Bukovcic, Radar-disdrometer comparison to study precipitation microphysics, AMS annual meeting, Student conference, Seattle, WA, Jan., 2011
  6. Zhang, G., R.J. Doviak, D. S. Zrnic, R.D. Palmer, L. Lei, and Y. Al-Rashid, A Cylindrical Polarimetric Phased Array Radar for Weather measurement, 27th Conference on IIPS, Seattle, WA, Jan., 2011
  7. Putnam, B. J., M. Xue, G. Zhang, Y. Jung, N. Snook, and A. D. Schenkman Comparison of the structural evolution and polarimetric variable fields of a forecasted MCV using a single and two-moment microphysics scheme, 25th Conference on Severe Local Storms, 2010
  8. Cao, Q., G. Zhang, R. Palmer, Implementation of enhanced moment estimation on the C-band polarimetric research radar OU-PRIME, ERAD, 2010.
  9. Snyder, J. C., H.B. Bluestein, G. Zhang, S. J. Frasier, Attenuation correction and hydrometeor classification of polarimetric, X-band, mobile Doppler radar data in severe convective storms, ERAD, 2010
  10. Zhang, G., Q. Cao, P. Bukovcic, S. Luchs, Precipitation microphysics characterized by polarimetric radar and video disdrometer measurements, Issues with Polarimetric Phased Array Radar in Weather Measurements, 13th Cloud Physics Conference, AMS, Portland, OR,  June 28 – July 2, 2010.
  11. Lei, L., G. Zhang, R. Palmer, B. Cheong, M. Xue, Performance of a multi-lag correlation estimator for polarimetric radar measurements, URSI-Natioanl Radio Science Meeting, Boulder, CO, 6-9 January,  2010.
  12. Bukovcic, P., D. Zrnic, G. Zhang, Q. Cao.  Retrieval and application of raindrop size distributions from polarimetric radar data, URSI- Natioanl Radio Science Meeting, Boulder, CO, 6-9 January,  2010

59.  Berry Y. Wen, T. Schuur, G. Zhang, J.j. Gourley, Y. Hong, Cross validation of space-borne radar and ground dual-polarimetric radar, URSI-Natioanl Radio Science Meeting, Boulder, CO, 6-9 January, 2010

60.  Cao, Q., G. Zhang, Issues in variational retrieval of raindrop size distribution from polarimetric radar data, URSI-Natioanl Radio Science Meeting, Boulder, CO, 6-9 January, 2010

61.  Li, Y., G. Zhang, R. J. Doviak, A spaced-antenna simulator based on configuration of the National Weather Radar Testbed (NWRT), URSI-Natioanl Radio Science Meeting, Boulder, CO, 6-9 January, 2010

  1. Zhang, G., R.J. Doviak, D. S. Zrnic, J. Crain, D. Staiman, and Y. Al-Rashid, Issues with Polarimetric Phased Array Radar in Weather Measurements, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  2. Bukovcic, P., D. S. Zrnic and G. Zhang, Spatial structure and time evolution of raindrop size distributions revealed from disdrometer and polarimetric radar observations, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  3. Cao, Q., G. Zhang, R. D. Palmer, L. Lei, and B. L. Cheong, Enhanced Moment Estimation of OU-PRIME Through Advanced Signal Processing, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  4. Lei, L., G. Zhang, R. D. Palmer, B. L. Cheong, M. Xue, A multi-lag correlation estimator for polarimetric radar variables in the presence of noise, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  5. Li, Y., R. J. Doviak, G. Zhang, D. Priegnitz, C. Curtis, Preliminary results using the NWRT monopulse radar for spaced antenna interferometric measurements of weather, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  6. Mark Yeary, J. E. Crain, A. Zahrai, R. Kelley, I. Ivic, J. Meier, C. D. Curtis, Y. Zhang, R. D. Palmer, T. Y. Yu, G. Zhang, R. J. Doviak, P. B. Chilson, M. Xue, and Q. Xu, An update on the RF and digital components of the multi-channel receiver development at the National Weather Radar Testbed, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  7. Palmer, R. D., A. V. Ryzhkov, G. Zhang, B. L. Cheong, T. Y. Yu, M. B. Yeary, P. B. Chilson, M. I. Biggerstaff, N. L. Hickmon, R. J. Doviak, D. S. Zrnic, M. Knight, N. E. Lawrence, F. Sloan, OU-PRIME: A High-Resolution Platform for Interdisciplinary Radar Research and Education at the University of Oklahoma, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  8. Snyder, J., H. Bluestein, G. Zhang, and S. Frasier, Attenuation correction and hydrometeor classification using high resolution,X-band, dual-polarized mobile radar measurements in severe convective storms, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  9. Zrnic, D. S., G. Zhang, V. Melnikov, and J. Andric Three body scattering and hail size, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  10. Zrnic, D. S., R. J. Doviak and G. Zhang, Differential reflectivity bias caused by cross coupling of H, V radiation in the antenna, 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  11. Bodine, D., R. Palmer, B. L. Cheong, P. L. Heinselman, D. Michaud, and G. Zhang, Can High-Resolution Surface Moisture Fields Be Retrieved In ? 34th Conference on Radar Meteorology, AMS, Williamsburg, VA, 5-9 October 2009.
  12. Palmer, R.D., M. I. Biggerstaff, P. B. Chilson, G. E. Crain, K. K. Droegemeier, Y. Hong, M. Yeary, T. Y. Yu, G. Zhang, and Y. Zhang Weather radar education at the University of Oklahoma: An integrated interdisciplinary approach, 18th Education and 15th IIPS, AMS Annual Meeting, Phoenix, January, 2009.
  13. Luchs, S., G. Zhang, A. V. Ryzhkov, M. Xue, L. Ryzhkova, and Q. Cao, Observations of snow particle size distribution with 2-D video disdrometer and polarimetric radar, 13rd conference on IOAS-AOLS, AMS Annual Meeting, Phoenix, January, 2009.
  14. Wainwright, C. E., M. Xue, G. Zhang, and D. T. Dawson, Microphysics schemes based on DSD-parameter constraints and their impact on convective storm forecasts, JP6.5, AMS Annual Meeting, Phoenix, January, 2009.
  15. Li, Y., G. Zhang, and R. J. Doviak, Comparison of Crossbeam Wind Measurements using Spaced-Antenna and Monopulse Configurations with the National Weather Radar Testbed,  25th Conference on IIPS, AMS Annual Meeting, Phoenix, January, 2009.  

77.  Lei, L., G. Zhang B.L.Cheong, R. D. Palmer, M. Xue, Simulations of Polarimetric Radar Signals Based on Numerical Weather Prediction Model Output, 25th Conference on IIPS, AMS Annual Meeting, Phoenix, January, 2009.

78.  Zrnic, D. S., and G. Zhang, Polarimetric phased array radar – possibilities and challenges, 25th Conference on IIPS, AMS Annual Meeting, Phoenix, January, 2009.      

79.  Cao, Q., and G. Zhang, M. Xue, Variational Retrieval of Raindrop Size Distribution from Polarimetric Radar Data in presence of attenuation, 25th Conference on IIPS, AMS Annual Meeting, Phoenix, January, 2009.       

80.  Scipion, D. E., R. D. Palmer, P. B. Chilson, E. Fedorovich, R.J. Doviak, G. Zhang, and A. M. Botnick, Effects of convective boundary layer inhomogeneities on radar measurements of mean wind and turbulence, 25th Conference on IIPS, AMS Annual Meeting, Phoenix, January, 2009.  

81.  Bukovcic, P., D. Zrnic, and G. Zrnic, A study of precipitation microphysics using S- and X- band polarimetric radar measurements, 13rd Conference on IOAS, AMS Annual Meeting, Phoenix, January, 2009.

82.  Zhang, G. Y. Li, R. J. Doviak, J. Carter, and D. Priegnitz, Multi-Beam Experiment for the Phased Array Radar Calibration and Sidelobe Reduction, URSI'09, Boulder, 5-8 January 2009

83.  Zrnic, D. S., G. Zhang, V. Melnikov, and J. Andric, Three Body Scattering and Hail Size, URSI'09, Boulder, 5-8 January 2009.

84.  Zhang, Y., R. Palmer, G. Zhang, K. Brews, M. Xue, T.Y. Yu, M. B. Yeary, and P.B. Chilson, "Multi-functional airborne external hazard monitoring radar with antenna diversity." SPIE Symposium on Optical Engineering and Applications: Remote Sensing Applications for Aviation Weather Hazard Detection and Decision Support, San Diego, 10-14 August 2008.

85.  Zhang, G., R. J. Doviak, D. Zrnic, and J. Crain, Phased array radar polarimetry for weather sensing: challenges and opportunities IGARSS'08, Boston, 6-11 July 2008.

86.  Ryzhkov, A, G. Zhang, S. Luchs, L. Ryzhkova,  "Polarimetric characteristics of snow measured by radar and 2D video disdrometer" ERAD, Helsinki, Finland, 30 June – 4 July 2008.

87.  Doviak, R. J., M. Fang, V. Melnikov, and G. Zhang, "Theoretical and practical considerations in using spectrum width data" ERAD, Helsinki, Finland, 30 June – 4 July 2008.

88.  Dawson, D. T. , M. Xue, J. A. Milbrandt, M.K. Yau, G. Zhang, "Analysis of Low-Level Downdraft, Cold Pool, and Tornado Behavior of Simulated Supercell Storms of the 3 May 1999 Oklahoma Tornado Outbreak with Single and Multi-Moment Microphysics", US-China Symposium on Meteorology, 26 – 28 February 2008.

89.  Cao, Q., and G. Zhang, " A Baysian approach to retrieve raindrop size distributions from polarimetric radar measurements", 24rd Conference on IIPS, AMS Annual Meeting, New Orleans, LA, January 2008.

90.  Morris, M., P. Chilson, G. Zhang, Q. Cao, R. Palmer, M. Teshiba1, L. Kanofsky1, T. Schuur and A. Ryzhkov, "Validation of Raindrop Size Distributions Retrieved from Polarimetric Radar Variables", 24rd Conference on IIPS, AMS Annual Meeting, New Orleans, LA, January 2008.

91.  Yeary, M., R. Palmer, M. Xue, Y. Yu, G. Zhang, A. Zahrai, J. Crain, Y. Zhang, R. Doviak, Q. Xu, and P. Chilson, " Introduction to multi-channel receiver development for the realization multi-mission capabilities at the National Weather Radar Testbed", 24rd Conference on IIPS, AMS Annual Meeting, New Orleans, LA, January 2008.

92.  Zhang, G,  R. J. Doviak, C. Curtis, and Q. Cao, "Multi-patterns to Reduce Sidelobe Effects on the National Weather Radar Testbed", Symposium on Recent Developments in Atmospheric Applications of Radar and Lidar, AMS Annual Meeting, New Orleans, LA, January 2008.

93.  Zhang, G., Q. Cao, M. Xue, P. Chilson, M. Morris, R. Palmer, J. Brotzge, T. Schuur, E. Brandes, K. Iketa, A. Ryzhkov, D. Zrnic, and E. Jessup , "A Field Experiment to Study Rain Microphysics Using Video Disdrometers, A Profiler, and Polarimetric S and X-Band Radars", Symposium on Recent Developments in Atmospheric Applications of Radar and Lidar, AMS Annual Meeting, New Orleans, LA, January 2008.

  1. Dawson, T. D., M. Xue, J. A. Milbrandt, M. K. Yau, and G. Zhang, Impact of multi-moment microphysics and model resolution on predicted cold pool and reflectivity intensity and structures in the Oklahoma tornadic supercell storms of 3 May 1999, 22nd conference on WAF and 18th Conference on NWP, Utah, 25 – 29 June 2007.
  2. Jung, J., M. Xue, G. Zhang, and J. M. Straka, Assimilation of simulated polarimetric radar data using ensemble Kalman filter: Observation operators and data impact, 22nd conference on WAF and 18th Conference on NWP, Utah, 25 – 29 June 2007.
  3. Zhang, G., M. Xue, D. Daniel Dawson, and Q. Cao, Diagnosing the Intercept Parameter for Exponential Rain Drop Size Distribution Based on Video Disdrometer Observations, 22nd conference on WAF and 18th Conference on NWP, Utah, 25 – 29  June 2007.
  4. Zhang, G., R. J. Doviak, X. Chen, " Spaced-antenna interferometry to locate discrete objects and sub-volume inhomogeneities of reflectivity", 33rd AMS Conference on Radar Meteorology, Australia, 6 – 8 August 2007.
  5. Chilson, P. B., G. Zhang, T. J. Schuur, L. M. Kanofsky, M. Teshiba, Q. Cao, and M. Van Every, Coordinated in-situ and remote sensing precipitation measurements at the Kessler Farm Field Laboratory in Central Oklahoma, 33rd AMS Conference on Radar Meteorology, Australia, 6 – 10 August, 2007.
  6. Kanofsky, L.M., P. B. Chilson, T. J. Schuur, G. Zhang, Q. Cao, and E. A. Brandes, Quantitative precipitation estimation and error analysis with a UHF wind profiling radar and a two-dimensional video disdrometer, 33rd Radar Conference on Radar Meteorology, Australia, 6 – 10 August 2007.
  7. Teshiba, M., G. Zhang, M. Xue, R. D. Palmer, and P. B. Chilson, Assimilation of Radar-Retrieved Water Mixing Ratio with the WRF 3DVAR System, 33rd Radar Conference on Radar Meteorology, Australia, 6 – 10 August 2007.
  8. Le, Khoi D.,  R. D. Palmer, T. Y. Yu, G. Zhang, S. M. Torres, and B. L. Cheong, Adaptive Array Processing for Multi-Mission Phased Array Radar, 33rd AMS Conference on Radar Meteorology, Australia, 6 – 10  August 2007.
  9. Palmer, R. D., T. Y. Yu, G. Zhang, P. B. Chilson, M. I. Biggerstaff, M. B. Yeary, S. M. Torres, J. E. Crain, and Y. Zhang, Weather radar education at the University of Oklahoma: An integrated inter-disciplinary approach, 33rd AMS Conference on Radar Meteorology, Australia, 6 – 10 August 2007.
  10. Zhang, G., Q. Cao, R. J. Doviak, and D. S. Zrnic "Optimizing estimation of cross-correlation function to improve polarimetric radar measurements in the presence of noise", IGARSS'07, Barcelona, Spain, 23 – 27 July 2007.
  11. Zhang, G., and R. J. Doviak, " A theory for phased array weather radar to measure crossbeam wind shear and turbulence", 23rd Conference on IIPS, AMS Annual Meeting, San Antonio, January, 2007.
  12. Le, K. Le, R. D. Palmer, T. Y. Palmer, G. Zhang S. Torres, and B. Cheong, " Improving angular resolution using adaptive processing for multifunction phased array radar", 23rd Conference on IIPS, AMS Annual Meeting, San Antonio, January, 2007.        
  13. Dawson, D.T., M. Xue, and G.  Zhang, "High resolution simulations of the 3 May 1999 Oklahoma tornado outbreak: Impact of microphysics on cold pool intensity and storm morphology", Severe Storms Conference, STL, 6-10 November, 2006.  
  14. Jung, Y., M. Xue, G. Zhang, and J. Straks, "Assimilation of simulated polarimetric radar data using ensemble Kalman filter: Observation operators and data impact", CASA workshop, Colorado, Octocber, 2006.
  15. Doviak, R. J., and G. Zhang, "Crossbeam wind measurements with phased-array Doppler weather radar, ERAD'06, Barcelona, 18-23 September, 2006.
  16. Cao, Q., G. Zhang, T. Schuur, A. Ryzhkov, E. Brandes, K. Iketa, " Characterization of rain microphysics and polarimetric signatures based on disdrometer and radar observations", IGARSS'06, Denver, 31 July – 4 August, 2006.
  17. Zhang, G., and R. J. Doviak, "Weather radar interferometry to measure transverse wind, shear and turbulence", IGARSS'06, Denver, 31 July – 4 August, 2006.

111.  Brandes, E., T. J. Schuur, A. V. Ryzhkov, G. Zhang, and K. Ikeda, " Rain Microphysics Retrieval with a Polarimetric WSR-88D", 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005.

112.  Brown, W., G. Zhang, T.-Y. Yu, and S. Cohn, " A Demonstration of a Scanning Multiple Antenna UHF Radar", 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005.

113.  Kyoko Ikeda,  E. Brandes, G. Zhang, and S. A. Rutledge, " Observations of Winter Storms with a 2-D Video Disdrometer and Polarimetric Radar," 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005.

114.  Kanofsky, L.,  P. B. Chilson, T. J. Schuur, G. Zhang, and E. A. Brandes, " A comparative study of drop size distribution retrieval using two video disdrometers and a UHF wind profiling radar," 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005.

115.  Serke, D., G. Zhang, J. Vivekanandan, T. L. Schneider, P. Minnis, and M. Poellot, " Verification of S-Polka Ka Band Radar/Radiometer LWC and RES Retrievals with GRIDS Retrievals and Aircraft Measurements and Comparison to GOES Icing Products for the WISP04 10-11 March Event", 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005.

116.  Yu, Y. T., G. Zhang, A. Chalamalasetti, R. J. Doviak, and D. S. Zrnic, " Improve radar resolution using range oversampling," 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005.

117.  Zhang, G., R. J. Doviak, R. Palmer, T. Y. Yu, and P. Chilson, " Bistatic Interferometry to Measure Clear Air Wind," 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 October, 2005.

118.  Zhang, G., J. Dudhia, E. Brandes, W. Wang and J. Sun,  " Disdrometer and Radar Observation-Based Microphysical Parameterization to Improve Weather Forecast", 32nd Radar Meteorology Conference, Albuquerque, New Mexico, 24-29 Octiber, 2005.

  1. Vivekanandan, J., G. Zhang, J. Willians and M. Politovich, "Detection of liquid droplet using ground-based polarization and dual-wavelength radar and radiometer",  EGU meeting, 2005.
  2. Ikeda, K., E. Brandes, and G. Zhang, "Observations of winter storms with 2-D video disdrometer and polarimetric radar." 11th ARAM, Hyannis, 4-8 October, 2004.
  3. Zhang, G., J. Vivekanandan, and M. K. Politovich, "Radar/radiometer combination to retrieve cloud characteristics for icing detection" 11th ARAM, Hyannis, 4-8 October, 2004.
  4. Brandes, E., and G. Zhang, "Raindrop size distribution: Characterization and retrieval from polarimetric radar measurements" THE 2004 JOINT ASSEMBLY, a partnership between CGU, AGU, SEG, and EEGS, Montreal, 17-21 May, 2004.
  5. Doviak, R. J., G. Zhang, T. Yu, " Crossbeam wind measurements with a Phase Array Doppler Weather Radar-Theory" IEEE National Radar Conference, Philadelphia, 26-29 April, 2004.
  6. Doviak, R. J., G. Zhang, S. Cohn, and W. Brown, "Comparison between Space Antenna and Doppler Beam Swing technique for wind measurement" URSI'04 National Radio Science Meeting, Boulder, 5-8 January, 2004.
  7. Zhang, G., T. Yu, and R. J. Doviak, "Angular interferometry to sharpen beam" submitted to URSI'04 National Radio Science Meeting, Boulder, 5-8 January, 2004.
  8. Brandes, E., G. Zhang, and J. Vivekanandan, Drop size distribution retrieval from polarimetric radar measurements using the constrained-Gamma model: verification and application, Proc. of the 31st Conference on Radar Meteorology, Seattle, 6-12 August, pp 29-32, 2003.

127.  Ellis, S., C. William, E. Brandes, and G. Zhang, Comparison of rain drop size distribution retrievals from polarization diversity radar and profiling radar using video disdrometer measurements, Proc. of the 31st Conference on Radar Meteorology, Seattle, 6-12 August, pp 4-7, 2003.

128.  Williams, J., J. Vivekanandan and G. Zhang, Enhanced dual-wavelength technique for remote detection of cloud liquid water content,  Proc. of the 31st Conference on Radar Meteorology,, Seattle, 6-12 August, pp 130-133, 2003.

129.  Zhang, G., J. Vivekanandan, and E. Brandes, Constrained Gamma drop size model for polarimetric radar rain estimation: justification and development,  Proc. of the 31st Conference on Radar Meteorology, Seattle, 6-12 August, pp 256-259, 2003.

130.  Zhang, G., R. Doviak, J. Vivekanandan, and T. Yu,   Single-antenna interferometry to measure wind,  Proc. of the 31st Conference on Radar Meteorology, Seattle, 6-12 August, pp 740-743, 2003.

131.  Politovich, M., G. Zhang, J. Vivekanandan, and J. Williams, Characteristics of clouds containing SLD relevant to remote sensing, AIAA meeting, April, 2003.

132.  Brandes, E., G. Zhang, and J. Vivekanandan, Precipitation estimation with polarimetric radar: Results of field studies, World Weather Research Programme's (WWRP) International Conference on Quantitative Precipitation Forecasting (QPF), UK, 2-6 September, 2002.

133.  Brandes, E., G. Zhang, and J. Vivekanandan, Monitoring drop-size distributions with polarimetric radar,  11th Conference on Cloud Physics, Ogden, UT, 3-7 June, 2002.

134.  Brandes, E., G. Zhang, and J. Vivekanandan, Monitoring drop-size distributions and associated rain rates with polarimetric radar, USWRP workshop, Boulder, 22-24 April, 2002.

135.  Vivekanandan, J. and G. Zhang, Effects of scattering due to ice particles on measurement of down-welling radiation observation of K and V-band radiometers, 10th ARAM, Portland, OR, 13-16 May, 2002.

136.  Williams, J., J. Vivekanandan, J. and G. Zhang, Evaluation of remote icing detection techniques using X-, Ka-, and W-band radar and microwave radiometer observations, 10th ARAM, Portland, OR, 13-16 May, 2002.

137.  Zhang, G., R. Doviak, and J. Vivekanandan, Range interferometry technique to determine radial wind, IGARSS'02, Toronto, Canada, 23-28 June, 2002.

138.  Zhang, G., J. Vivekanandan, E.A. Brandes, The shape-slope relation in Gamma raindrop size distribution: statistical error or useful information?,  USWRP workshop, Boulder, 22-24 April, 2002.

139.  Brandes, E., G. Zhang, J. Vivekanandan, and S. M. Ellis, An evaluation of polarimetric radar rainfall estimators in a semi-tropical environment. Proc. of AMS Radar Conference, Germany, 19-24 July, pp638-640, 2001.

140.  Vivekanandan, J., E., G. Zhang, and M. Politovich, Ananlysis of  a dual-wavelength radar technique for estimating liquid water content and droplet size,  Proc. of AMS Radar Conference, Germany, 19-24 July, pp157-159, 2001.

141.  Vivekanandan, J., and G. Zhang, Preciptation particle classification and raindrop size distribution retrieval fro s-band polarimetric radar measurements. AP-RASC'01,  Tokyo, Japan, 1-4 August, pp169, 2001.

142.  Vivekanandan, J. and G. Zhang, Numerical study of multi-frequency dual-polarization microwave radiometry technique for supercooled liquid water detection. Proc. of IGARSS'01, Sydney, Ausralia, 9-13 July, 2001.

143.  Zhang, G., J. Vivekanandan, and E. Brandes, Sampling effects on radar measurements and its consequence on parameter retrieval.  Proc. of IGARSS'01, Sydney, Ausralia, 9-13 July, 2001.

144.  Zhang, G., J. Vivekanandan, and R. J. Doviak, Innovative cross-correlation method for determining three-dimensional wind. Proc. of  AMS Radar Conference, Germany, 19-24 July, pp471-473, 2001.

145.  Brandes, E., G. Zhang, J. Vivekanandan, and S. M. Ellis, An evaluation of polarimetric radar rainfall estimators in a semi-tropical environment. 2nd USWRP Symp., Boulder, Colorado, 27-29 March, 2000.

146.  Brandes, E., G. Zhang, J. Vivekanandan, and S. M. Ellis, A study of polarimetric radar rainfall estimators in a semi-tropical environment. AGU 2000 Spring Meeting, 30 May - 3 June, 2000.

147.  Vivekanandan, J., G. Zhang, E. Brandes and J. Miller, Raindrop size distribution retrieval using polarimetric radar measurements. 2nd USWRP Symp.,  Boulder, Colorado, 27-29 March, 2000.

148.  Vivekanandan, J., G. Zhang, and M. K. Politovich, Multi-frequency and polarization radar-based detection of liquid droplets.  9th conference of aviation, range, and aerospace meteorology, Orlando, Florida, Sept., 2000.

149.  Vivekanandan, J., G. Zhang, and M. K. Politovich, Estimation of cloud droplet size and liquid water content using dual-wavelength radar measurememts. Proc. Of IGARSS'00, Hawaii, 24-28 July, pp1813-1816, 2000.

150.  Zhang, G., J. Vivekanandan, and E. Brandes, A method for estimating rain rate and drop size distribution from polarimetric radar measurements. Proc. Of IGARSS'00, Hawaii, 24-28 July, pp180-183, 2000.

151.  Vivekanandan, J., G. Zhang, and M.K. Politovich, Estimate of droplet size and liquid water content using dual-frequency radar measurements for aircraft icing detection. Proc. of 29th ICRM, Montreal, Canada,12-16 July, pp872-875, 1999.

152.  Vivekanandan, J., G. Zhang, and A.V. Ryzhkov, Estimation of canting angle distribution of raindrop spectra using radar measurements. International Radar Symposium, India, Dec., 1999.

153.  Zhang, G., J. Vivekanandan, and M.K. Politovich, Effect of scattering on microwave passive remote sensing of cloud liquid water content.  The 8th conference of aviation, range, and aerospace meteorology, Dallas, TX, Jan., 1999.

154.  Zhang, G. and J. Vivekanandan, Microwave radiation from mixed phase cloud for ground-based radiometer remote sensing. Proc. Of IGARSS'99, Hamburg, Germany, 28 June – 2 July, 1999.

155.  Li, L., C.H. Chan, L. Tsang, and G. Zhang Wave scattering from a lossy dielectric rough surface using PBTG BMIA/CAG and applications to passive remote sensing, Proc. of IGARSS'98, Seattle, WA, 6-10 July, 1998.

156.  Zhang, G. and L. Tsang, Angular correlation function and scattering coefficient of electromagnetic waves scattered by a 3-D buried object under a 2-D rough surface. Proc. of IGARSS'98, Seattle, WA, 6-10 July, 1998.

157.  Pak, K., T. Tsang, and G. Zhang, Numerical studies of electromagnetic wave scattering from two-dimensional random rough surfaces. Proc. of PIERS'97, Hong Kong, pp464, 1997.

158.  Tsang, L., K. Pak, and G. Zhang, Application of the angular correlation function of scattered wave by a random rough surface with and without a single scattering object. Proc. of PIERS'97, Hong Kong, pp466, 1997.

159.  Zhang, G., L. Tsang, and Y. Kuga, Application of angular correlation function of wave scattering by a random rough surface and random discrete scatterers in target detection. Proc. of IGARSS'97, Singapore, July, 1997.

160.  Zhang, G., L. Tsang, and Y. Kuga, A study of electromagnetic wave scattering by a buried object in the presence of a random rough surface and random media using angular correlation function (ACF). PIERS'97, Cambridge, 1997.

161.  Tsang, L., G. Zhang, and K. Pak, Numerical study of detection of a buried object under a single random rough surface with angular correlation function. Proc. Of IGARSS'96, Lincoln, NE, pp2143- 2145, 1996.

162.  Zhang, G. and L. Tsang, Wave scattering and scene images of trees generated by Lindenmayer systems. Proc. Of IGARSS'96, Lincoln, NE, pp728-729, 1996.

163.  Chen, Z., G. Zhang, L. Tsang, And W. Au, Collective scattering effects and applications of stochastic Lindenmayer systems in microwave remote sensing. Proc. of PIERS'95 , Seattle, WA, 1995. 

164.  Tsang, L., Z. Chen, G. Zhang, and W. Au, Microwave scattering by plants generated by a stochastic Lindenmayer system. Proc. Of IGARSS'95, Firenze, Italy, pp1340-1343, 1995.

165.  Tsang, L., K. H. Ding, G. Zhang, C. Hsu, and J. A. Kong, Backscattering enhancement of volume-surface interaction of a layer of overlying a homogeneous dielectric half space. Proc. Of IEEE APS/URSI/NEM'94, pp2338-2341, 1994.

166.   Zhang, G., and J. Hou, Enhanced backscattering from rough surface in turbulence. URSI General, Japan, 1993.

167.   Zhang, G., The dependence of beam spread on observation duration. ISAP'92, Japan, 1992.

168.   Li, H., R. Zhang, and G. Zhang, The center of gravity for rain intensitysystem and choice of orbit position of a satellight. Proc. Of 5th URSI Commision F, France, 1.5.1-1.5.4, 1989.

169.   Zhang, G., J. Hou, Correlativity of pulse train propagation in random medium, Proc. Of ISAP'88, Beijing, April 17-20, 1988.

170.   Li, H., G. Zhang, and L. Liao, An improved model for the prediction of rain attenuation statistics. Proc. Of ICAP'87, U.K., pp226-229, 1987.

171.   Li, H., and G. Zhang,  Prediction of rain attenuation on earth-space path. Proc. Of ISAP'85, Japan, pp313-316, 1985.

172.   Zhang, G., and H. Li, Analytical model for effective medium temperature and its application. Proc. Of ISAP'85, Japan, pp293-296, 1985.