Posts by Collection

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Investigating the role of complex sandbar morphology on nearshore hydrodynamics

Cohn, N., Ruggiero, P., Ortiz, J. P., & Walstra, D. J. (2014). Investigating the role of complex sandbar morphology on nearshore hydrodynamics. Journal of Coastal Research, (70 (10070)), 53-58.

Quantifying regional sediment flux from observations of nearshore morphology in the Columbia River Littoral Cell

Ortiz, J. P. Quantifying regional sediment flux from observations of nearshore morphology in the Columbia River Littoral Cell. Dartmouth College Senior Honors Thesis Collection.

Exploring the potential linkages between oil-field brine reinjection, crystalline basement permeability, and triggered seismicity for the Dagger Draw Oil field, southeastern New Mexico, USA, using hydrologic modeling

Zhang, Y., Edel, S. S., Pepin, J., Person, M., Broadhead, R., Ortiz, J. P., Bilek, S. L., Mozley, P. S., & Evans, J. P. (2016). Exploring the potential linkages between oil‐field brine reinjection, crystalline basement permeability, and triggered seismicity for the Dagger Draw Oil field, southeastern New Mexico, USA, using hydrologic modeling. Geofluids, 16(5), 971-987.

The Role of Fault-Zone Architectural Elements and Basal Altered Zones on Downward Pore Pressure Propagation and Induced Seismicity in the Crystalline Basement

Ortiz, J. P. The Role of Fault-Zone Architectural Elements and Basal Altered Zones on Downward Pore Pressure Propagation and Induced Seismicity in the Crystalline Basement. New Mexico Institute of Mining and Technology.

Summary of a Gas Transport Tracer Test in the Deep Cerros Del Rio Basalts, Mesita del Buey, Los Alamos NM,United States

Stauffer, P. H., Rahn, T. A., Ortiz, J. P., Salazar, L. J., Boukhalfa, H., & Snyder, E. E. (2018). Summary of a Gas Transport Tracer Test in the Deep Cerros Del Rio Basalts, Mesita del Buey, Los Alamos NM (No. LA-UR-17-31351). Los Alamos National Lab.(LANL), Los Alamos, NM (United States).

Immobile Pore-Water Storage Enhancement and Retardation of Gas Transport in Fractured Rock

Harp, D. R., Ortiz, J. P., Pandey, S., Karra, S., Anderson, D., Bradley, C., Viswanathan, H., & Stauffer, P. H. (2018). Immobile pore-water storage enhancement and retardation of gas transport in fractured rock. Transport in Porous Media, 124(2), 369-394.

Evidence for high rates of gas transport in the deep subsurface

Stauffer, P. H., Rahn, T., Ortiz, J. P., Salazar, L. J., Boukhalfa, H., Behar, H. R., & Snyder, E. E. (2019). Evidence for high rates of gas transport in the deep subsurface. Geophysical Research Letters, 46(7), 3773-3780.

Identification of dominant gas transport frequencies during barometric pumping of fractured rock

Harp, D. R., Ortiz, J. P., & Stauffer, P. H. (2019). Identification of dominant gas transport frequencies during barometric pumping of fractured rock. Scientific Reports, 9(1), 1-9.

The role of fault‐zone architectural elements on pore pressure propagation and induced seismicity

Ortiz, J. P., Person, M. A., Mozley, P. S., Evans, J. P., & Bilek, S. L. (2019). The role of fault‐zone architectural elements on pore pressure propagation and induced seismicity. Groundwater, 57(3), 465-478.

Beyond Barnwell: Applying lessons learned from the Barnwell site to other historic underground nuclear tests at Pahute Mesa to understand radioactive gas-seepage observations

Bourret, S. M., Kwicklis, E. M., Harp, D. R., Ortiz, J. P., & Stauffer, P. H. (2020). Beyond Barnwell: Applying lessons learned from the Barnwell site to other historic underground nuclear tests at Pahute Mesa to understand radioactive gas-seepage observations. Journal of Environmental Radioactivity, 222, 106297.

Geologic characterization of nonconformities using outcrop and whole-rock core analogues: hydrologic implications for injection-induced seismicity

Petrie, E. S., Bradbury, K. K., Cuccio, L., Smith, K., Evans, J. P., Ortiz, J. P., Kerner, K., Person, M., & Mozley, P. (2020). Geologic characterization of nonconformities using outcrop and core analogs: hydrologic implications for injection-induced seismicity. Solid Earth, 11(5), 1803-1821.

Continental‐Scale Geographic Trends in Barometric‐Pumping Efficiency Potential: A North American Case Study

Avendaño, S. T., Harp, D. R., Kurwadkar, S., Ortiz, J. P., & Stauffer, P. H. (2021). Continental‐Scale Geographic Trends in Barometric‐Pumping Efficiency Potential: A North American Case Study. Geophysical Research Letters, 48(17), e2021GL093875.

Gas diffusion through variably-water-saturated zeolitic tuff: Implications for transport following a subsurface nuclear event

Neil, C. W., Boukhalfa, H., Xu, H., Ware, S. D., Ortiz, J., Avendaño, S., Harp, D. R., Broome, S., Hjelm, R. P., Brug, W. P., & Stauffer, P. H. (2022). Gas diffusion through variably-water-saturated zeolitic tuff: Implications for transport following a subsurface nuclear event. Journal of Environmental Radioactivity, 250, 106905.

Barometric pumping through fractured rock: a mechanism for venting deep methane to Mars’ atmosphere

Ortiz, J. P., Rajaram, H., Stauffer, P. H., Harp, D. R., Wiens, R. C., & Lewis, K. W. (2022). Barometric Pumping Through Fractured Rock: A Mechanism for Venting Deep Methane to Mars' Atmosphere. Geophysical Research Letters, 49(14), doi:10.1029/2022GL098946.

This article was also featured on the cover of this GRL issue.

Sub-diurnal methane variations on Mars driven by barometric pumping and planetary boundary layer evolution

Ortiz, J. P., Rajaram, H., Stauffer, P. H., Lewis, K. W., Wiens, R. C., & Harp, D. R. (2024). Sub-diurnal methane variations on Mars driven by barometric pumping and planetary boundary layer evolution. Journal of Geophysical Research: Planets. 129, e2023JE008043. doi:10.1029/2023JE008043.

Adsorption & Diffusion

Barometric pumping

Induced Seismicity

Methane on Mars

UNE Detection

Interannual Sandbar Variability within the Columbia River Littoral Cell

The Hydrologic Connection Between Basal Reservoir Injection, Crystalline Basement Fault Zones, and Induced Seismicity

Detection of Underground Nuclear Explosions: improving estimates of subsurface radionuclide transport using experimental Xe diffusion data and numerical methods

Improving estimates of subsurface gas transport in unsaturated fractured media using field tracer data and numerical methods

Improving estimates of subsurface gas transport in unsaturated fractured media using field tracer data and numerical methods

A reduced-order model to assist real-time predictions of gas transport in unsaturated fractured media

Analysis of enhanced gas transport in fractured rock due to barometric pressure variations

The role of fault-zone architectural elements and basement altered zones on pore pressure propagation and induced seismicity

Coupled discrete fracture and 3D continuum domain representation to efficiently capture gas transport from underground cavities

Identifying dominant barometric frequencies driving gas transport in fractured rock

Noble gas diffusion through variably-saturated rock: implications for verification of subsurface nuclear events

Noble gas diffusion through variably saturated rock: implications for verification of subsurface nuclear events

Improving estimates of gas transport in fractured rock – implications for verification of underground nuclear events

NROMM Seepage Tool: recent capability development and analytical verification

From Manhattan to Mars: Generating novel insights into methane fluctuations on the Red Planet

Determining hydrogeologic properties using well data, barometric pressures, and tidal analysis

PE1-A pressure and gas arrival predictions based on in-situ permeability measurements

From Manhattan to Mars: Applying models of subsurface radionuclide gas seepage from nuclear testing to understand methane release from the martian subsurface

Using legacy radionuclide data to validate barometric pumping models

PE1-A Pressure and Permeability Predictions

The Mars Underground: Characterizing subsurface methane seepage on the Red Planet

Barometric pumping through fractured rock: A mechanism for venting deep underground methane to Mars’ atmosphere

The Mars Underground: Characterizing subsurface methane seepage on the Red Planet

The Mars Underground: Characterizing subsurface methane seepage on the Red Planet

Sub-diurnal methane variations on Mars driven by barometric pumping and planetary boundary layer evolution

Blog Post

The Mars Underground: Characterizing methane seepage on the Red Planet

Sub-Diurnal Methane Variations on Mars Driven by Barometric Pumping and Planetary Boundary Layer Evolution

Sniffing for methane on Mars

Graduate Teaching Assistant

Undergraduate course, New Mexico Tech, Earth & Environmental Sciences Department, 2015

Developed lesson plans and led class lectures and field trips for 20+ students in intermediate and upper level undergraduate Earth Sciences lab sections. Taught lab sections for courses in Geomorphology and Stratigraphy & Paleontology with work load totaling 20 hrs/week.

Grading Assistant

Undergraduate course, Johns Hopkins University, Environmental Health & Engineering Department, 2019

Graded weekly homework assignments for 20+ upper-level undergraduate engineering students in an Introduction to Fluid Mechanics course. Occasionally taught course lectures as needed.