Dr. John Hannan

Chief, Digital Battlespace Management Division

Defense Threat Reduction Agency (DTRA)

Dr. John Hannan is Chief of the Digital Battlespace Management Division within the Department of Defense (DoD) – Defense Threat Reduction Agency (DTRA) Research and Development / Chemical and Biological Technologies Department. DTRA safeguards America and its allies from weapons of mass destruction (chemical, biological, radiological, nuclear, and high yield explosives) by providing capabilities to reduce, eliminate, and counter the threat, and mitigate its effects.

Dr. Hannan leads a group of civilian and contractor scientists engaged in the development of models and algorithms that provide the warfighter with comprehensive data fusion and analysis capabilities to support situational awareness, decision making and consequence management. The products resulting from these research and development efforts are designed to transition to acquisition Programs of Record, primarily within the DoD Chemical and Biological Defense Program.

Dr. Hannan holds a Ph.D. from The Florida State University and is a DTRA Distinguished Technical Fellow. He has published extensively in the peer reviewed literature including the Journal of Geophysical Research, the Journal of Climate, Geophysical Research Letters and Atmospheric Environment.