STATUS · ALL SYSTEMS NOMINAL · —
STONY BROOK · 40.92°N 73.12°W ● LIVE
Field StationCEWIT · Stony Brook, NY
Established2007
Active Instruments14 / 14
ModeAdaptive scan

Connecting sensors, advancing atmospheric science.

The Connected Weather research group develops next-generation atmospheric observing systems that combine adaptive radar sensing, AI, and multisensor cyberinfrastructure to improve understanding and prediction of rapidly evolving weather.

Explore research Tour facilities
Research focus

What we work on.

Six core areas spanning ground-based and spaceborne sensing, cloud microphysics, and adaptive cyberinfrastructure for atmospheric science.

01 / Connected Radar
Connected Radar — MAAS meets machine learning.
Our flagship research direction. Real-time, fine-grained, coordinated control of multiple connected radar systems through the MAAS cyberinfrastructure, fused with machine-learning-driven adaptive scanning. Enables agile sampling of fast-evolving atmospheric phenomena that conventional fixed-scan radars cannot capture.
MAASMachine learningAdaptive sensingMulti-radar
02 / MAAS
Multisensor Agile Adaptive Sampling.
The cyberinfrastructure backbone of Connected Radar. NSF-CISE-funded framework providing real-time, fine-grained, coordinated control across connected radar systems with feature detection, tracking, and integration of drones and phased-array radars.
NSF CISEReal-timeCyberinfrastructure
03 / Radar remote sensing
Millimeter-wavelength & phased-array systems.
Development and deployment of multi-frequency radar systems for high-resolution observation of clouds and precipitation. Doppler-spectra analysis, polarimetric retrievals, and dual-wavelength techniques.
Ka · X · KuPolarimetry
04 / Cloud microphysics
Ice nucleation, droplets, entrainment.
Ice nucleation, precipitation formation, aerosol-cloud interactions, entrainment, and droplet activation. In-situ + remote sensing + simulations.
In-situMixed-phase
05 / Spaceborne missions
EarthCARE, WIVERN, INCUS.
Forward modeling tools and retrieval algorithms for spaceborne radar observations of clouds and precipitation.
230+
Peer-reviewed publications
25yrs
At the cutting edge of radar
14
Scientists · postdocs · students
350TB
Online observation archive
Our group

Led by Pavlos Kollias.

SUNY Empire Innovation Professor at SoMAS, Stony Brook University. Joint appointment at Brookhaven National Laboratory. Author of more than 230 peer-reviewed publications.

Edward Luke

Edward Luke

Senior Applications Engineer
Connected RadarMAASRadar engineeringDoppler spectraConvectionMachine learning
eluke@bnl.gov
Mariko Oue

Mariko Oue

Research Professor
Spaceborne radarCloud microphysicsPolarimetryDoppler spectraForward modeling
mariko.oue@stonybrook.edu
Nithin Allwayin

Nithin Allwayin

Scientist
Connected RadarMAASMachine learningCloud microphysicsTurbulence
nithin.allwayin@stonybrook.edu
Zhuocan Xu

Zhuocan Xu

Scientist
Spaceborne radarAerosol–cloud interactionsRetrievalsCloud microphysics
zhuocan.xu@stonybrook.edu
Marat Khairoutdinov

Marat Khairoutdinov

Professor
Climate modelingHigh-resolution cloud modelingCloud microphysics and parameterization
marat.khairoutdinov@stonybrook.edu
Alessandro Battaglia

Alessandro Battaglia

Associate Professor
Spaceborne radarEarthCAREWIVERNINCUSRemote sensing
alessandro_battaglia@polito.it
Katia Lamer

Katia Lamer

Director, CMAS
Boundary layerUrban climateRemote sensingMixed-phase clouds
klamer@bnl.gov
Katherine McKeown

Katherine McKeown

Postdoctoral Researcher
Mesoscale meteorologyConvectionSevere weatherINCUS
katherine.mckeown@stonybrook.edu
Meet the full team
Infrastructure

Radar facilities.

State-of-the-art radar systems across multiple bands and scanning architectures.

RAD-01KASPR
Scanning polarimetric Ka-band radar. Doppler spectra and full polarimetric observables — H/V transmit, simultaneous co-/cross-polar reception. The flagship of the observatory.
BandKa · 35.29 GHz
Wavelength8.5 mm
Beamwidth0.32°
RAD-02SKYLER-I & II
X-band phased-array radars developed with Raytheon Technologies. SKYLER-I now operates from a fixed location at the radar yard; SKYLER-II is a second-generation system on a mobile platform using a software-defined transceiver.
BandX-band
SKYLER-IRadar yard (fixed)
SKYLER-IIMobile platform
RAD-03ROARS
Rain, Ocean, Atmosphere Radar System — an X-band, 2D electronically scanned radar built on Agile Radar technology for sea-surface and atmospheric measurements.
BandX-band
Array2D e-scan
HeritageAgile Radar
SYS-04MAAS
Multisensor Agile Adaptive Sampling cyberinfrastructure. Real-time coordinated control of connected radar systems with feature detection and tracking. NSF CISE funded.
TypeCyberinfra
FundingNSF CISE
PIKollias et al.
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Newsroom

Latest news.

Recent publications, mission milestones, and field notes from the group.

Award

Katia Lamer receives the 2027 AMS STAC Outstanding Early Career Award
Honor

Pavlos Kollias elected a 2027 Fellow of the American Meteorological Society
Workshop

Pavlos Kollias chairs the Quantum Information Science for the Geosciences Workshop at Stony Brook
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