Systems and Methods to Improve Forecasting of Devastating Weather

CASA (Patent Family)


Available for Licensing
(Individual / Family)


V. Chandrasekar

Nitin Bharadwaj
Cuong M. Nguyen
Dmitri N. Moisseev
Gang Xu
Yanting Wang

At a Glance

The following patents belong to a large portfolio of technologies specifically developed through CASA, the Center for Collaborative Adaptive Sensing of the Atmosphere.

The primary objective of CASA is to improve observations and forecasting of devastating weather such as flash floods, tornados, high winds, and hail by developing new paradigms for sensing the atmosphere. These near-surface events are often missed by the current S-band national radar observation network, NEXRAD, due to the Earth’s curvature, radar beam refraction and separation between radars.

To solve the coverage problem and minimize curvature effects, CASA proposed dense networks of short-range X-band, polarimetric, Doppler radars with an adaptive scanning strategy that could sit on existing infrastructure. The first test bed, or Integrated Project 1 (IP1), was established in southwestern Oklahoma, and consists of four X-band, polarimetric, Doppler radars with overlapping coverage.

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Licensing Director

Mandana Ashouri

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CASA, the Center for Collaborative Adaptive Sensing of the Atmosphere, was established as a prestigious National Science Foundation Engineering Center in 2003 with over $40 million in federal, university, industry, and state funding. The Center brought together a multidisciplinary group of engineers, computer scientists, meteorologists, sociologists, graduate and undergraduate students, as well as industry and government partners to conduct fundamental research, develop enabling technology, and deploy prototype engineering systems based on a new paradigm: Distributed Collaborative Adaptive Sensing (DCAS) networks.

As an NSF Engineering Research Center, CASA included four academic partners: the University of Massachusetts (lead institution), the University of Oklahoma, Colorado State University, and the University of Puerto Rico. Other collaborating academic institutions were the University of Delaware, the University of Virginia, McGill University, Indiana University of Pennsylvania and University of Colorado at Colorado Springs.  Industry and government partners included: Vaisala, Raytheon, NOAA, EWR Weather Radar Systems, First RF Corporation, Paroscientific, Inc. and the National Research Institute for Earth Science and Disaster Prevention (NIED) of Japan.

IP Status: CASA Family of Patents
Reference No.: 10-025

Sensitivity Enhancement Systems

US Utility Patent: US 8,274,423

Reference No.: 09-069

Resolution Enhancement System (RES) for Networked Radars

US Utility Patent: US 8,462,040
Australia: AU 2010310752
Canada: CA 2,778,476
Europe: EP 2491418 (FR, DE, UK)

Reference No.: 08-043

A Networked Waveform System for Weather Radar Network

US Utility Patent: US 8,077,074
Australia: AU 2009246606
Canada: CA 2,723,754

Reference No.: 08-036

Dual Polarization Parameters Retrieval System Using a Parametric Time Domain Method – DPTDM

US Utility Patent: US 8,665,144
Australia: AU 2009244220
Canada: CA 2,723,720
Europe: EP 2286511 (FR, DE, UK)


Reference No.: 07-044

Parametric Time Domain Method for Ground Clutter Mitigation (PTDM)

US Utility Patent: US 7,652,614
Australia: AU 2008307362

Reference No.: 06-016

Dynamic and Adaptive Radar Tracking of Storms (DARTS)

US Utility Patent: US 7,843,378
Australia: AU 2009221931
Canada: CA 2,717,733

Last updated: September 2020