GROUND-BASED, HIGH-RESOLUTION STORM OBSERVATIONS
Colleagues and collaborators at CSU for over a decade, Reising and Chandrasekaran first met through their mutual involvement in CASA, the National Science Foundation Engineering Research Center for Collaborative Adaptive Sensing of the Atmosphere, a consortium of university, industry, government, and weather data users established in 2003. Chandrasekaran serves as Deputy Director of Research for CASA and provides leadership for the sensing research thrust, contributing to many of the enabling radar technologies deployed in the Distributed Collaborative Adaptive Sensing (DCAS) networks pioneered by the Center.
The DCAS concept is aimed at overcoming the limitations of current weather forecasting and warning systems, which use large, high-power, long-range radars that undersample conditions in the lower parts of the atmosphere due to the Earth’s curvature, by deploying low-cost networks of small, short-range Doppler radars. The networked radars adapt their sensing modes to respond to and zero in on rapidly-changing weather hazards, providing real-time, high-resolution observations geared to public safety and commerce. The prototype test beds in Massachusetts, Oklahoma, Puerto Rico, and the research to operations testbed in Dallas-Fort Worth have demonstrated the potential for earlier tornado warning, detection of high wind events, and more precise rainfall and flooding hazard estimates.
ABOUT THE REISING AND CHANDRASEKAR GROUPS
Steven Reising is a professor of Electrical and Computer Engineering at Colorado State University. Reising received the Ph.D. degree in electrical engineering from Stanford University, where he was supported by a NASA Earth Systems Science Fellowship. Reising and his group conduct research in a broad range of remote sensing applications, including remote sensing of the Earth’s atmosphere and oceans from airborne platforms and small satellites, design and demonstration of radiometer systems based on low-noise MMIC amplifier-based front ends from gigahertz to terahertz frequencies, lidar systems for sensing temperature and winds in the middle and upper atmosphere, lighting-ionosphere interactions and atmospheric electrodynamics. He has been Principal Investigator for projects sponsored by NASA, National Science Foundation, Department of Defense, Office of Naval Research, Naval Research Laboratory, NPOESS Integrated Program Office, Ball Aerospace & Technologies Corp., and the European Space Agency.
V. Chandrasekar is a Colorado State University Distinguished Professor of Electrical and Computer Engineering at CSU, and an internationally-recognized expert in weather radar science and technology and radar signal processing. He is particularly known for his pioneering contributions to polarimetric radar observations of the atmosphere, as well as the theory and application of radar networks, for which has been named a Fellow of the American Meteorological Society, the IEEE, the International Union of Radio Science, and the Cooperative Institute for Research in the Atmosphere, and was awarded the Insignia of Knight, First Class, of the Order of the White Rose of Finland. Chandra and his group conduct research in radar system design, radar network development, digital signal processing, RF communication systems, and related topics including image processing, neural network applications and large scale system simulation. Chandrasekar has been a PI or Co-PI for the Advanced Communication Technology Satellite (ACTS) program at CSU; the DARPA NGI program; the NASA TRMM and GPM missions; the CSU-CHILL National Radar Facility, one of the most advanced meteorological radar systems in the world available for research; and the NSF SEA-POL, the nation’s first ocean-going polarimetric radar. He is a Co-PI and the Deputy Director of the NSF Engineering Research Center for Collaborative Adaptive Sensing of the Atmosphere, CASA.