STATUS · ALL SYSTEMS NOMINAL ·
STONY BROOK · 40.92°N 73.12°W ● LIVE
— Group · 19 members

Transforming how we observe the atmosphere.

Researchers, postdocs, and students across Stony Brook University, Brookhaven National Laboratory, McGill University, and Politecnico di Torino.

Pavlos Kollias

Pavlos Kollias

SUNY Empire Innovation Professor · SoMAS · BNL
Connected RadarRadar meteorologySpaceborne radarCloud dynamicsPhased-array radar

Pavlos Kollias is a Professor of Atmospheric Sciences at Stony Brook University with a joint appointment in the Environmental Science and Technologies Department at Brookhaven National Laboratory since 2016. He is also Adjunct Professor at the Department of Atmospheric and Oceanic Sciences at McGill University.

Kollias has spent twenty-five years at the cutting edge of atmospheric experimentation. He is internationally recognized as one of the leading thinkers in the use of radars for the study of atmospheric phenomena — radar engineering, signal processing, smart sensors, instrumentation, and the development and application of novel phased-array and spaceborne radars for weather and climate research.

Before joining Stony Brook and BNL, Kollias held a Canada Research Chair and was a Professor at McGill University in Montreal. He has authored or co-authored more than 230 peer-reviewed scientific articles in millimeter-wavelength radar research, radar technology, signal processing, and cloud and precipitation dynamics and microphysics.

pavlos.kollias@stonybrook.edu

Scientists, postdocs, and researchers.

Edward Luke

Edward Luke

Senior Applications Engineer
Connected RadarMAASRadar engineeringDoppler spectraConvectionMachine learning
Lead engineer responsible for the group's radar infrastructure. Novel observation techniques with millimeter-wavelength radars and ML-driven analysis.
Mariko Oue

Mariko Oue

Research Professor
Spaceborne radarCloud microphysicsPolarimetryDoppler spectraForward modeling
Leads spaceborne-radar science directions. Cloud and precipitation microphysics from radar/lidar observations.
Nithin Allwayin

Nithin Allwayin

Scientist
Connected RadarMAASMachine learningCloud microphysicsTurbulence
Leads the group's Connected Radar effort — the MAAS cyberinfrastructure and machine-learning methods for adaptive radar scanning.
Zhuocan Xu

Zhuocan Xu

Scientist
Spaceborne radarAerosol–cloud interactionsRetrievalsCloud microphysics
Co-leads the group's spaceborne-radar science directions. Cloud processes from active and passive remote sensing — Bayesian retrievals and ice-particle-habit uncertainties.
Marat Khairoutdinov

Marat Khairoutdinov

Professor
Climate modelingHigh-resolution cloud modelingCloud microphysics and parameterization
Developer of the System for Atmospheric Modeling (SAM) and the global storm-resolving model gSAM. Kilometer-scale cloud-resolving modeling, superparameterization, and the representation of clouds and precipitation in numerical models.
Alessandro Battaglia

Alessandro Battaglia

Associate Professor
Spaceborne radarEarthCAREWIVERNINCUSRemote sensing
Active and passive microwave remote sensing across the EarthCARE, WIVERN, and INCUS missions.
Katia Lamer

Katia Lamer

Director, CMAS
Boundary layerUrban climateRemote sensingMixed-phase clouds
Director of Operations, Center for Multiscale Applied Sensing at Brookhaven. Led BNL's mobile observatory; remote sensing for urban climate resilience.
Katherine McKeown

Katherine McKeown

Postdoctoral Researcher
Mesoscale meteorologyConvectionSevere weatherINCUS
Ph.D. in Meteorology from Penn State. Mesoscale and radar meteorology — coastal convection initiation and severe-weather characteristics.
Jiseob Kim

Jiseob Kim

Postdoctoral Researcher
Spaceborne radarForward modelingEarthCARECloud microphysics
Ph.D. from Yonsei University. Forward modeling, scattering, and cloud microphysics — working with EarthCARE satellite data at McGill.
Emina Hafiz

Emina Hafiz

Research Assistant
Spaceborne radarRemote sensingCloud microphysicsRadar meteorology
Analyzes cloud radar observations to advance multi-frequency radar measurements and future spaceborne G-band missions.
Bernat Puigdomènech Treserras

Bernat Puigdomènech Treserras

Research Specialist
EarthCARESpaceborne radarForward modelingRetrievals
Technical Manager for the ESA-side EarthCARE CPR L2a processors.
Fan Yang

Fan Yang

Scientist
Cloud microphysicsMixed-phase cloudsAerosol–cloud interactionsTurbulencePrecipitation
BNL Cloud Processes Group. Ice nucleation, droplet activation, and aerosol–cloud–turbulence interactions.
Zeen Zhu

Zeen Zhu

Scientist
Remote sensingRetrievalsCloud microphysicsRadar meteorology
Develops cloud radar and lidar algorithms to retrieve cloud microphysical and dynamical properties. High-resolution remote sensing at Brookhaven.
Vaibhav Tyagi

Vaibhav Tyagi

Postdoctoral Researcher
WIVERNRadar meteorologySpaceborne radarRetrievalsAI/ML
Ph.D. from IIT Indore. Single-Doppler wind-field retrievals, radar and satellite meteorology, and AI/ML — supporting the WIVERN mission and MAAS at McGill.

Jialin Yan

Jialin Yan

PhD Student
Cloud microphysicsCloud dynamicsRemote sensing
B.Sc. and M.Sc. from Lanzhou University. Microphysics and dynamics of clouds and remote sensing. Joined the group in 2022.
Oluwafemi Omitusa

Oluwafemi Omitusa

PhD Student
MAASMachine learningSevere weatherConnected Radar
M.S. in Meteorology from Oklahoma. Machine learning for adaptive sampling of severe convective storms within the MAAS framework.
Songchen Li

Songchen Li

PhD Student
Mesoscale meteorologyMachine learningConvection
B.S. from Nanjing University of Information Science and Technology. Atmospheric modeling of mesoscale systems and machine learning for tropical cyclones.
Faidon Mavroudis

Faidon Mavroudis

PhD Student
MAASConnected RadarMachine learning

Where they are now.

Year · Degree
Name
Now at
2025 · Postdoc
Kwonil Kim
Assistant Professor, Kyungpook National University
2025 · PhD
Zackary Mages
Postdoctoral Research Associate, Brookhaven National Laboratory
2025 · Postdoc
Jagdeep Sodhi
2024 · BSc
Skyler Day Harman
Meteorologist, News 12 Bronx & Brooklyn
2023 · BSc
Jason Barr
Graduate Student, University of Washington
2022 · PhD
Zeen Zhu
Atmospheric Scientist, Brookhaven National Laboratory
2021 · MSc
Rohit Rowat
Software Engineer, Google
2020 · MSc
Samantha Nebylitsa
Naval Research Laboratory
2017 · PhD
Xiaoli Zhou
Assistant Professor, Dalhousie University
2016 · MSc
Kirk North
Senior Staff Software Engineer, AUMOVIO
2016 · MSc
David Burns
UK Patent Office
2016 · PhD
Paloma Borque
Flight Research Laboratory, National Research Council Canada
2014–15 · Postdoc
Stefan Kneifel
Assistant Professor, Ludwig-Maximilians-Universität München
2014 · MSc
Katia Lamer
Scientist & Director, Center for Multiscale Applied Sensing, BNL
2014 · Postdoc
Heike Kalesse
Professor, Leipzig University
2013 · PhD
Véronique Meunier
Research Assistant, Atmospheric & Oceanic Sciences, McGill University
2012 · Postdoc
Scott Giangrande
Meteorologist, Brookhaven National Laboratory
2012 · MSc
Kevin Bowley
Associate Teaching Professor, Penn State
2012 · PhD
Arun Chandra
Tata Consultancy Services
2012 · PhD
Jasmine Rémillard
Scientific Programmer, NASA/GISS