About
I am a scientist and technologist with over four decades of experience designing, building, and managing information systems to enable scientific discovery and the broader use of scientific data. My career spans the chemical, material, Earth, data, information, and computer sciences. This unusual breadth has helped me collaborate with experts across a wide range of disciplines.
My work over much of the last two decades has focused on making Earth science data as Findable, Accessible, Interoperable, and Reusable (FAIR) as practical. As Manager of the NASA-funded ORNL Distributed Active Archive Center (ORNL DAAC), I led one of the data archive and distribution centers in NASA's Earth Observing System Data and Information System (EOSDIS), which serves hundreds of thousands of users worldwide.
I retired from Oak Ridge National Laboratory in September 2025. I currently serve on the NASA DARES Task Force 2 (Decadal Astrobiology Research and Exploration Strategy) and hold a Graduate Research Advisor appointment at the University of Tennessee's Bredesen Center for Interdisciplinary Studies. I am currently experimenting with using AI methods to develop and execute data pipelines as part of a passion project.
Professional Experience
Distinguished Staff Scientist, ORNL DAAC Manager & Group Leader
Oak Ridge National Laboratory (2018–2025)
Led NASA's archive center for biogeochemical dynamics and terrestrial ecology data. Managed data systems serving hundreds of thousands of global users. Managed the Remote Sensing and Environmental Informatics Group (16 people). Promoted to Distinguished Staff Scientist in 2023.
Adjunct Faculty
University of Tennessee, Bredesen Center for Interdisciplinary Studies (2019–present)
Advised and mentored students in the Data Science and Engineering program. Ph.D. thesis advisor for research applying machine learning to scientific applications.
University of Tennessee, School of Information Sciences (2007–2019)
Data Observation Network for Earth (DataONE) institutional Principal Investigator (2008–2013). DataONE cyberinfrastructure co-lead (2008–2016).
Lead Enterprise Architect
Oak Ridge National Laboratory (2012–2018)
Designed information systems architecture for a $2B/year DOE laboratory with the broadest research portfolio among Office of Science labs.
Group Leader, Client and Collaboration Technologies
Oak Ridge National Laboratory (2011–2012)
Managed for 45-person group responsible for administering 20,000 unclassified computers, Active Directory, patching, and systems engineering support for R&D projects.
ORNL DAAC Systems Engineer, Manager and Group Leader
Oak Ridge National Laboratory (2006–2010)
Led ORNL DAAC systems design and implementation (2006-2008). Group Leader for 25-person Environmental Data Science and Systems Group (2008-2010).
Technical Leader, High Throughput Research Informatics
The Dow Chemical Company (2001–2006)
Led 41-person team across 4 countries developing informatics tools for high-throughput research in material science, formulations, and catalysis.
Service & Leadership
NASA DARES Task Force 2 Member (2026–present)
Contributing to NASA's Decadal Astrobiology Research and Exploration Strategy, with focus on digital infrastructure for astrobiology research.
NASA Planetary Data Ecosystem IRB Co-Chair (2020–2021)
Co-chaired independent review board and led the Data Mining and Automation Subcommittee. Produced recommendations for improving NASA's planetary data systems.
Co-Chair, NASA DAAC Managers Council (2020–2022)
Co-chaired the coordinating council for NASA's 12 Distributed Active Archive Centers.
NASA DAAC Efficiency & Effectiveness Review Panel Chair (2015–2016)
Chaired review panel producing recommendations for improving the Distributed Active Archive Center component of EOSDIS.
Proposal Reviewer (Ongoing)
Reviewer for approximately 25 proposal review panels across NASA, NSF, DOE, and USGS (2006-present).
Education
Ph.D., Analytical Chemistry
University of Washington, Seattle
B.S. with High Honors, Chemistry and Mathematics
Michigan State University
Selected Awards & Recognition
NASA Agency Award for Group Achievement (2022)
Senior Member, Association for Computing Machinery (2020)
Department of Energy Outstanding Mentor Award (2008)
National Science Foundation Graduate Fellow (1985–1988)
Phi Beta Kappa (1985)