About
Welcome to my webpage!
I am a Director’s Postdoctoral Fellow at Los Alamos National Laboratory (LANL) in the National Security Earth Science Group (EES-17).
My primary research area is multi-phase fluid flow and transport in porous and fractured media, and I am also very excited about topics related to planetary exploration (e.g., Mars methane, Ocean Worlds, Titan, hypervelocity impacts), nuclear monitoring, hydrogeology, and petroleum geofluids. I enjoy developing and applying multi-phase flow and transport models in creative ways to answer emerging questions at the intersection of subsurface flow, fracture-matrix interactions, and reactive transport. You can find more information about my research at my LANL Expertise Profile.
I have many research interests and am open to collaboration, so please reach out to me at my email in the sidebar if you are interested in working with me!
Research Interests
For more info about my research areas, see Research.
Education
- Johns Hopkins University, 2024
Ph.D. Environmental Engineering
- New Mexico Tech, 2017
M.Sc. Hydrogeology
- Dartmouth College, 2014
B.A. (Honors) Earth Science
Updates
New article published in J. of Environmental Radioactivity
January 01, 2025🚨 New Year, New Article! 🚨 Gas diffusion-adsorption in zeolitic rocks behaves counter-intuitively when partially saturated. This has implications for radionuclide transport monitoring, and possibly even methane transport on Mars. doi.org/10.1016/j.je...
— Dr. John P. Ortiz (@johnportiz14.bsky.social) January 1, 2025 at 11:44 AM
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Session Chair at AGU Fall Meeting 2024
December 09, 2024Title: The New Mars Underground: Fluids, Volatiles, and the Future of Mars Exploration
My first time as a session chair at #AGU24 was a great success! Turns out a lot of people care about subsurface processes on Mars!
— Dr. John P. Ortiz (@johnportiz14.bsky.social) December 9, 2024 at 8:05 PM
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