19–22 May 2025
US/Mountain timezone
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Hari Viswanathan Bio

Hari Viswanathan 
Laboratory Fellow
Energy and Natural Resources Security Group
Earth and Environmental Sciences Division
Los Alamos National Laboratory
viswana@lanl.gov

Hari Viswanathan holds advanced degrees in chemical and environmental engineering and is a senior scientist in the Computational Earth Science group at Los Alamos National Laboratory.  He is PI on multiple energy security projects that have been a combination of R&D and programmatic work leading to a strong publication record of over 150 peer-reviewed journal publications on subsurface energy applications with an h-index of 55 and over 10,000 citations. He is a GSA Fellow, LANL Fellows Prize winner for Outstanding Research and a LANL Fellow. Viswanathan has expertise in subsurface fractured systems, reservoir modeling and machine learning, all critical elements for characterizing subsurface systems. He has led large multi-disciplinary, multi-institutional projects in DOE application areas such as carbon sequestration applications, unconventional oil and gas and locating undocumented orphan wells. He has also worked on nuclear waste disposal, nuclear nonproliferation and other DOE mission critical programs where he has integrated field observations, laboratory measurements, predictive modeling and uncertainty quantification.