The Center for Collaborative Adaptive Sensing of the Atmosphere (CASA) is a multi-sector partnership among academia, industry, and government dedicated to engineering revolutionary weather-sensing networks. These innovative networks will save lives and property by detecting the region of the lower atmosphere currently below conventional radar range—mapping storms, winds, rain, temperature, humidity, and the flow of airborne hazards.

CASA was established in 2003 as a prestigious National Science Foundation Engineering Center with over $40 million in federal, university, industry, and state funding. The Center brings together a multidisciplinary group of engineers, computer scientists, meteorologists, sociologists, and 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 the new paradigm of Distributed Collaborative Adaptive Sensing (DCAS) networks.

Since 2010, CASA's work has been supported by the Jerome M. Paros Fund for Measurement and Environmental Sciences Research.