Huaqing Cai. National Center for Atmospheric Research P.O. Box 3000 Boulder, CO Phone (303) Fax (303)

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1 Huaqing Cai National Center for Atmospheric Research P.O. Box 3000 Boulder, CO Phone (303) Fax (303) Education: Ph.D., Atmospheric Sciences, University of California, Los Angeles, M.S., Atmospheric Sciences, University of California, Los Angeles, M.S., Microwave Remote Sensing, Chinese Academy of Meteorological Sciences, Beijing, China, B.S., Atmospheric Physics, University of Science and Technology of China, Hefei, Anhui, China, Professional Experience: 2005-present: Project Scientist, NCAR : Advanced Study Program Postdoctoral Fellow, NCAR : Research Associate, Desert Research Institute (DRI) : Research Assistant, Department of Atmospheric Science, UCLA : Teaching Assistant, Department of Atmospheric Science, UCLA : Research Scientist, Chinese Academy of Meteorological Sciences. Field Program Experience: Over the years Dr. Cai has been involved in a number of field campaigns when NCAR s airborne Doppler radar ELDORA (Electra Doppler Radar) was deployed as one of the major observing instruments. 1

2 ELDORA radar scientist, T-PARC project, ELDORA radar scientist, RAINEX project, ELDORA data management, BAMEX project, Team leader of DRI Radiometer, IHOP project, ELDORA radar scientist assistant, FASTEX project, Research Interests: Dr. Cai has been working on various research projects involving topics such as microwave remote sensing, airborne Doppler radar data analysis and severe weather studies (tornadoes, supercells, fronts and drylines) using radar and satellite data. Most recently Dr. Cai s research interests include nowcasting convective storms using radar, satellite and NWP models both over land and over ocean. Awards: Dissertation Year Fellowship, UCLA Graduate Division, Postdoctoral Fellowship, National Center for Atmospheric Research s Advanced Study Program, Selected Peer-reviewed Publications: Cao, Z., and H. Cai, 2011: Detection of tornado frequency trend over Ontario, Canada. The Open Atmospheric Science Journal, 5, p DOI: / Cai, H., R. Kuligowski, G. Lee, N. Rehak, G. Cunning, D. Albo, D. Megenhardt and M. Steiner, 2008: Brightness temperature nowcasting for satellitebased short-term prediction of storms: opportunities and challenges, Proc. SPIE, Vol. 7088, (2008); DOI: / Cao, Z., and H. Cai, 2008: Tornado frequency and its large-scale environments over Ontario, Canada. The Open Atmospheric Science Journal, 2, , doi: / Cai., H., W.-C. Lee, T. M. Weckwerth, C. Flamant and H. V. Murphey, 2006: Observations of 11 June dryline during IHOP----a null case for convection initiation. Mon. Wea. Rev. 134, Cai., H., 2005: Comparison between tornadic and nontornadic mesocyclones using fractal geometry. Mon. Wea. Rev., 133, Wakimoto, R. M., H. Cai, and H. V. Murphey, 2004: The Superior, Nebraska Supercell during BAMEX. Bull. Amer. Meteor. Soc., 85, Wakimoto, R. M., H. V. Murphey and H. Cai, 2004: The San Angelo Supercell of 31 May 1995: Visual Observations and Tornadogenesis. Mon. Wea. Rev., 132,

3 Cox, A. W., W. J. Steenburgh, D. E. Kingsmill, J. C. Shafer, B. A. Colle, O. Bousquet, B. F. Smull and H.Cai, 2003: Kinematic Structure of a Wasatch Mountain Winter Storm during IPEX IOP3. In press, Mon. Wea. Rev. Wakimoto, R. M., and H. Cai, 2001: Airborne observations of a front in a deformation zone during FASTEX., Mon. Wea. Rev., 130, Cai, H., and R. M. Wakimoto, 2001: Retrieved Pressure Field and Its Influence on the Propagation of a Supercell Thunderstorm. Mon. Wea. Rev., 129, Gao, J. B., and H. Cai, 2000: On the Structures and Quantification of Recurrence Plots. Physics Letters A, 270, Wakimoto, R. M., and H. Cai, 2000: Analysis of a non-tornadic supercell during VORTEX-95. Mon. Wea. Rev., 128, Wakimoto, R. M., C.-H. Liu, and H. Cai, 1998: The Garden City, Kansas, storm during VORTEX 95. Part I: Overview of the storm's life cycle and mesocyclogenesis. Mon. Wea. Rev., 126, Cai, H. and CL Zhao, 1993: Water vapor measured by a dual-channel microwave radiometer during severe weather events. Mesoscale Meteorology Research Paper Collection, published by Chinese Academy of Meteorological Sciences, Beijing, China. Zhao CL, Cai HQ, Song YD, Lin B, and Xu PY, 1991: Measurement of water vapor and cloud liquid by a dual-channel ground-based microwave radiometer. ACTA METEOROLOGIA SINICA, Vol. 5, No. 3, p (In English) Zhou XJ, Zhao CL, Ma DA and Cai HQ, 1991: Atmospheric profile and preliminary investigation on the monitoring of disastrous weather. ACTA METEOROLOGIA SINICA, Vol. 5, No. 3, p (In English) Zhao CL, Xu PY, Lin B, Song YD, Cai HQ and Mu J, 1990: a new digital radiometer for measurement of water vapor and cloud liquid in the troposphere. Chinese Science Bulletin, Nov, 1990, v35 (n21): (In English) Selected Conferences Publications/Conference Talks: Cai, H., C. Kessinger, N. rehak, J. Pinto, D. Megenhardt, D. Albo, M. Steiner, R. Bankert, and J. Hawkins, Short-term storm forecasting from blending satellite-based extrapolation forecasts with NWP model outputs over the Gulf of Mexico. 18 th Conference on Satellite Meteorology, Oceanography and Climatology, New Orleans, LA, January Cai, H., W-C Lee, M. Bell and C. Wolff, Study of airborne Doppler radar navigation correction using a variational technique. 35 th Conference on Radar Meteorology, Pittsburgh, PA, September Cai, H., M. Steiner, J. Pinto, B. Brown, and P. He: Assessment of numerical weather prediction model storm forecasts using an object-based 3

4 approach. 24 th Conference on Weather and Forecasting, Seattle, WA, January Cai, H., C. Kessinger, N. Rehak, D. Megenhardt, and M. Steiner: The challenges of nowcasting convection over the ocean. The Symposium of Chinese-American Oceanic and Atmospheric Association, Taipei, Taiwan, June Cai, H., C. Kessinger, N. Rehak, D. Megenhardt and M. Steiner, 2010: Comparisons of nowcasting techniques for oceanic convection. 14 th Conference on Aviation, Range, and Aerosapce Meteorology, Amer. Meteo. Soc., Atlanta, GA. Cai, H., M. Steiner, J. Pinto, P. He, S. Dettling, D. Albo, J. H. Gotway and B. Brown, 2009: Scientific assessment and diagnostic evaluation of shortterm forecasts. The World Weather Research Program Symposium on Nowcasting and Very Short Range Forecasting (WSN09), Whistler, BC, Canada. Cai, H., C. Kessinger, D. Ahijevych, J. Williams, N. Rehak, D. Megenhardt, M. Steiner, R. L. Bankert, J. Hawkins, M. F. Donovan and E. R. Williams, 2009: Nowcasting oceanic convection for aviation using random forest classification. 16 th Conference on Satellite Meteorology and Oceanography, Amer. Meteo. Soc., Phoenix, AZ. Cai, H., C. Kessinger, N. Rehak and D. Megenhardt, 2008: Investigation into environmental conditions for storm initiation over the ocean using satellite data. 13 th conference on aviation, range and aerospace meteorology, American Meteorological Society, New Orleans, LA, January Cai, H., R. Roberts, D. Megenhardt, E. Nelson and M. Steiner, 2007: Tackling the challenge of nowcasting elevated convection. 33 rd international conference on radar meteorology, 6-10 August 2007, Cairns, Australia. Cai, H., J. Wilson, J. Pinto, D. Albo and C. Mueller, 2006: Developing NIWOT a regional 1-6 hr short-term thunderstorm forecast system. Fifth International Conference on Mesoscale Meteorology and Typhoon, Boulder, USA, OCT 31 st Nov. 3 rd, Cai, H., R. Roberts, C. Mueller and T. Saxen, 2005: Enhancements of the NCAR auto-nowcast system by using ASAP and NRL satellite products. The World Weather Research Program Symposium on Nowcasting and Very Short Range Forecasting (WSN05), Toulouse, France, 5-9 September, 2005 Cai, H., R. Roberts, C. Mueller, T. Saxen, M. Xu, S. Trier and D. Megenhardt, 2005: Impacts of MM5 model data on the performance of the NCAR autonowcast system. 32 nd Conf. on Radar Meteorology, Albuquerque, NM, Amer. Meteo. Soc. Cai, H., R. Roberts, C. Mueller, T. Saxen, D. Megenhardt, M. Xu, S. Trier, E. Nelson, D. Albo, N. Rehak, S. Dettling and N. Oien, 2006: Enhancements of the NCAR auto-nowcast system using NRL, ASAP, MM5 and TAMDAR data. 12 th Conf. on Aviation, Range and Aerospace Meteorology, Atlanta, GA, Amer. Meteo. Soc. 4

5 Cai, H.,2003: Differentiating between tornadic and nontornadic mesocyclone using fractal geometry. Preprints, 31th Conference on Radar Meteorology. Seattle, WA., Amer. Meteor. Soc., Cai, H. and W.-C. Lee, 2003: Observations of the finescale structure of 11 June dryline during IHOP Preprints, 31th Conference on Radar Meteorology. Seattle, WA., Amer. Meteor. Soc., Keeler, R. J.,H. Cai and W.-C. Lee, 2003: Airborne Doppler radar clutter and range sidelobe suppression. Preprints, 31th Conference on Radar Meteorology. Seattle, WA., Amer. Meteor. Soc., Kingsmill, D. E., H. Cai, J. A. W. Cox and W. J. Steenburgh, 2002: Microphysical structure of orographic precipitation along the Wasatch Mountains during IPEX. Preprints, Tenth Conference on Mountain Meteorology, Amer. Meteor. Soc., Park City, UT. Cai, H., and R. M. Wakimoto, 2001: Airborne Doppler radar observations of a shallow cold front. Preprints, 30th International Conf. on Radar Meteorology, Amer. Meteor. Soc., Munich, Germany, Cai, H., and R. M. Wakimoto, 2000: A Case Study of Supercell Propagation. Preprints, 20th Conf. on Severe Local Storms, Amer. Meteor. Soc., Orlando, FL, Cai, H., and R. M. Wakimoto, 1998: Comparison between the Garden City tornadic and Hays nonntornadic supercells during VORTEX95. Preprints, 19th Conf. on Severe Local Storms, Amer. Meteor. Soc., Minneapolis, MN, Cai, H., and R. M. Wakimoto, 1997: Analysis of a non-tornadic supercell during VORTEX-95. Preprints, 28th Conf. on Radar Meteorology, Amer. Meteor. Soc., Austin, TX, Zhao CL, Cai HQ, Song YD and Lin B, 1991: Applications of a ground-based water vapor radiometer in Mesoscale meteorology experiments, Preprint volume, Symposium on Lower Tropospheric Profiling: Needs and Technologies, Boulder, Colorado, p , Sep 10-13, Sponsored by NOAA/NCAR, Boulder, Colorado. Zhao CL, Song YD, Lin B, and Cai HQ, 1989: Measurement of water vapor and cloud liquid by dual- frequency ground- based microwave radiometer. Proceedings, The URSI/IAU Symposium on Radio Astronomical Seeing, May15-18, 1989, Beijing, China, Selected Seminars/Invited Talks: Supercell thunderstorms: can we predict when they will produce tornadoes? A seminar given at Desert Research Institute, Reno, NV. August, Test of supercell propagation theory using data from VORETX95. A seminar given at NCAR/ATD, Boulder, CO, March

6 Tornadogenesis and fractal geometry. A seminar given at NCAR/ATD, Boulder, CO, March Weather radars in the US. Invited talk at Xinjiang weather bureau, Urumqi, Xinjiang, China. September, The NCAR Auto-Nowcaster. Invited talk at Xinjiang weather bureau, Urumqi, Xinjiang, China. September, A review of dust storm research. Invited talk at Xinjiang weather bureau, Urumqi, Xinjiang, China. September, Nowcasting storms for aviation, Invited talk at Nanjing University, Nanjing, China. June 21, Airborne Doppler radar observations of severe storms, Invited talk at Nanjing University, Nanjing, China. June 22, An introduction to aviation weather research at NCAR/RAL. Invited seminar at Shanghai Meteorological Bureau, Shanghai, China, July 23,

Daniel L. Megenhardt 614 W County Rd 10E Berthoud, CO home work

Daniel L. Megenhardt 614 W County Rd 10E Berthoud, CO 80513 home 970.532.1325 work 303.497.2837 email hardt@ucar.edu Education BS in Meteorology/Math minor, May 1993 Metropolitan State College of Denver