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Pavlos Kollias




- University of Miami

Research Topics:

Cloud Microphysics and Dynamics, Environmental Remote Sensing, Radar Meteorology and Technology

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  • Bio/Research


    Pavlos Kollias is a Professor of Atmospheric Sciences at Stony Brook University and has a joint appointment with the Department of Environmental and Climate Sciences at Brookhaven National Laboratory since 2016. Previously he was a Canada Research Chair at McGill University, Montreal Canada.  Kollias’s research focuses on the understanding of the microphysical and dynamical processes that act at the cloud scale and their accurate representation in numerical models. He is also interested in radar meteorology and technology, and the development and application of novel phased-array and space-borne radars in weather and climate research. Kollias is the author or co-author of over 150 peer-reviewed scientific articles in the areas of millimeter-wavelength radar research, radar technology, signal processing, and cloud and precipitation dynamics and microphysics.


    Pavlos Kollias is also the Director of the  Center for Multiscale Applied Sensing (CMAS)  at   Brookhaven National Laboratory. He is a member of the Mission Advisory Group and algorithm development team of the European Space Agency Earth Clouds Aerosols Radiation Experiment (EARTHCARE) Explorer Mission. He has served as a member at the National Science Foundation Engineering Research Center for the Collaborative Adaptive Sensing of the Atmosphere. Kollias also served for three years (2007-2009) as Associate Chief Scientist for the US DOE Atmospheric Radiation Measurements (ARM) program and for six years (2012-2018) as the leader of the Radar Science group of the ARM program. He has served as the Chair of the American Meteorological Society (AMS) Committee on Radar Meteorology and has organized and chaired numerous sessions in international conferences. Kollias has also organized and participated as guest lecturer in several short courses in Europe, North America and Asia on the use of radars in atmospheric research.

  • Publications


    Kollias, P., N. Bharadwaj, E.E. Clothiaux, K. Lamer, M. Oue, J. Hardin, B. Isom, I. Lindenmaier, A. Matthews, E.P. Luke, S.E. Giangrande, K. Johnson, S. Collis, J. Comstock, and J.H. Mather, 0:  The ARM Radar Network: At the Leading-edge of Cloud and Precipitation Observations. Bull. Amer. Meteor. Soc., 0,

    Kollias, P., Puigdomènech Treserras, B., and Protat, A.: Calibration of the 2007–2017 record of ARM Cloud Radar Observations using CloudSat, Atmos. Meas. Tech.,, Accepted, 2019

    Battaglia, A. and Kollias, P.: Evaluation of differential absorption radars in the 183 GHz band for profiling water vapour in ice clouds, Atmos. Meas. Tech., 12, 3335-3349,, 2019

    Kollias, P., D. J. McLaughlin, S. Frasier, M. Oue, E. Luke and A. Sneddon, “Advances and applications in low-power phased array X-band weather radars,”  2018 IEEE Radar Conference (RadarConf18), Oklahoma City, OK, USA, 2018, pp. 1359-1364. doi: 10.1109/RADAR.2018.8378762

    Oue, M., Kollias, P., Ryzhkov, A., & Luke, E. P. (2018). Toward exploring the synergy between cloud radar polarimetry and Doppler spectral analysis in deep cold precipitating systems in the Arctic.  Journal of Geophysical Research: Atmospheres, 123, 2797–2815.

    North, K. W., Oue, M., Kollias, P., Giangrande, S. E., Collis, S. M., and Potvin, C. K.: Vertical air motion retrievals in deep convective clouds using the ARM scanning radar network in Oklahoma during MC3E, Atmos. Meas. Tech., 10, 2785-2806,, 2017

    Oue, M., P. Kollias, K. W. North, A. Tatarevic, S. Endo, A. M. Vogelmann, and W. I. Gustafson Jr. (2016), Estimation of cloud fraction profile in shallow convection using a scanning cloud radar, Geophys. Res. Lett., 43, doi: 10.1002/2016GL070776.

    Kollias P., N. Bharadwaj, K., Widener, I., Jo and K., Johnson, 2014: Scanning ARM Cloud Radars – Part I: Operational Sampling Strategies. Online release, Journal of Atmospheric and Oceanic Technology 2013; e-View doi:

    Kollias P., I. Jo P. Borque P., A. Tatarevic, K. Lamer, N. Bharadwaj, K., Widener, K., Johnson and E. Clothiaux 2014: Scanning ARM Cloud Radars – Part II: Data Quality Control and Processing. Online release, Journal of Atmospheric and Oceanic Technology 2013; e-View doi:

    Kollias, P., E.E. Clothiaux, M.A. Miller, B.A. Albrecht, G.L. Stephens, and T.P. Ackerman, 2007: Millimeter-Wavelength Radars: New Frontier in Atmospheric Cloud and Precipitation Research.  Bull. Amer. Meteor. Soc., 88, 1608–1624    

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