STATUS · ALL SYSTEMS NOMINAL·—
CEWIT · STONY BROOK · 40.92°N 73.12°W● LIVE
— Facilities · 4 radar systems · 350 TB

Instruments built to listen to the sky.

Multi-band, multi-platform radar systems and cyberinfrastructure spanning Ka-band cloud radar, X-band phased arrays, and dual-frequency prototypes.

Office & Computing

CEWIT Building, Stony Brook.

Our 400 m² office and indoor laboratory spaces are located in the New York State Center of Excellence in Wireless and Information Technology at Stony Brook University.

400m²
Office & lab space
350TB
Online storage
96
Dual-core processors
5GPU
Compute units
Radar systems

Radar facilities.

RAD-01KASPR
The flagship radar of the observatory. KASPR collects Doppler spectra and radar moments through alternate transmission of horizontally and vertically polarized waves and simultaneous reception of co-polar and cross-polar components of the backscattered wave with a beamwidth of 0.32°. A full set of polarimetric radar observables is available, enabling identification of microphysical processes.
BandKa · 35 GHz
λ8 mm
Beamwidth0.32°
TypeScanning polarimetric
RAD-02SKYLER-I
X-band Phased Array Radar with antenna beamwidth of 1.98° in azimuth and 2.1° in elevation at boresight. Beam is electronically scanned ±45° in horizontal and ±15° in vertical. Transmits H- and V-polarization pulses (alternating) for ΦDP, KDP, ZDR, and ρHV in addition to standard power and Doppler measurements.
BandX-band
Beamwidth1.98°/2.1°
Az scan±45°
El scan±15°
RAD-03SKYLER-II
Second-generation phased array integrated onto a mobile platform (RAMS 550 with extended flatbed). Equipped with generator, gas tank, helium rack, computer rack, and 5G router for off-the-grid operations. The active electronically scanned antenna array comprises 2,560 transmit/receive channels with individual amplitude, phase, and polarization control. High duty cycle (20–22%) provides 23 W average power with −5 dBZ minimum sensitivity at 10 km. Supports flexible waveform and scan diversity.
BandX-band
T/R channels2,560
Grid64×40
Sensitivity−5 dBZ @ 10 km
RAD-04ROARS
Rain, Ocean, Atmospheric Radar System — a prototype dual-frequency radar leveraging a metamaterials antenna for ground-based and airborne precipitation and sea-surface sensing. Software-defined radar digital IF transceiver with e-steered beam controller enabling weather scans, ocean surface scatterometry, and sea surface altimetry. 100 W peak power, <1 m aperture, 5 dBZ minimum reflectivity at 10 km. Currently deployed at the DOE ARM Bankhead National Forest site.
BandsX / Ku
AntennaMetamaterials
Aperture< 1 m
Beam scan±60°
Software

Software tools.

Open-source and operational software developed by the group for radar control, forward modeling, and data analysis.

SW-01 / NSF CISE
MAAS
The Multisensor Agile Adaptive Sampling cyberinfrastructure significantly improves the ability to sample rapidly evolving atmospheric phenomena by providing real-time, fine-grained, coordinated control across multiple advanced radar systems. Transformative elements include real-time external observations for situational awareness, feature detection and tracking, and integration of future observing technologies such as drones and phased-array radars.
Real-timeNSF CISEMulti-radar
SW-02 / Open-source
CR-SIM
The Cloud-resolving model Radar Simulator is a forward-modeling framework that converts numerical weather prediction model output into synthetic radar observations by simulating electromagnetic scattering from model-resolved hydrometeors across multiple radar frequencies, polarizations, and viewing geometries. Accounts for hydrometeor size distributions, phase-dependent dielectric properties, attenuation, and Doppler effects.
Forward modelMulti-freqOue et al. 2020