PNNL

As an Earth Scientist, Parker has worked on multiple topics within marine seismology and several mission spaces across DOE and DOD. He enjoys straddling the line between applied and experimental science and occasionally blur the line between scientist and engineer.

Much of his work lies at the intersection of geophysics (particularly seismology), data science, and distributed fiber optic sensing. He works with both terrestrial and submarine optical fiber networks. He uses optimization and inverse theory, along with high performance scientific computing methods, to solve problems related to national security, enhanced geothermal energy, and ocean science. In recent years, he has developed a strong interest in building custom instruments/sensor and DAQs.P

Parker works with a team that specializes in computational and applied geophysics. They create software and develop algorithms for imaging and monitoring dynamic processes in the subsurface. They also design and build highly customized geophysical sensor arrays along with flow and stimulation systems for enhanced geothermal systems, environmental monitoring and remediation, as well as national security. Their capability comprises expertise across a wide range of fields relevant to subsurface science and engineering (e.g., seismology, data science, optical engineering, hydrology, electrical and EM geophysics, geomechanics, gravity, and mechanical and environmental engineering).

In years past, Parker researched microseismicity at the Juan De Fuca mid ocean ridge system. He worked to better understand the connections between tidal triggering, moment release and the state of stress during a submarine volcanic eruption cycle through the lenses of seismology, data analysis, and geo-statistics.

• Applied geophysics with emphasis in engineering, environmental, and national security spaces.
• Geophysical sensor development
• Microseismology
• Distributed Fiber Optic Sensing

• PhD (in progress) Geophysics (Seismology), University of Washington
• M.S., Geophysics (Seismology), North Carolina State University
• B.S., Geology / Geophysics , North Carolina State University / UNC-Chapel Hill

• AEG, SEG, GSA, AGU

2025

• Strickland C.E., D.C. Linneman, J.M. Knox, D. Sirota, S.C. Myers, G. Abbott, and T.R. Alexander, et al. 2025. Low Yield Nuclear Monitoring Physics Experiment 1 - Integrated Data Acquisition System Design and Initial Observations. PNNL-37567. Richland, WA: Pacific Northwest National Laboratory. Low Yield Nuclear Monitoring Physics Experiment 1 - Integrated Data Acquisition System Design and Initial Observations

2023

• Mangel A.R., D.C. Linneman, D. Sirota, J.M. Knox, D.P. Sprinkle, F.D. Day-Lewis, and C.E. Strickland, et al. 2023. Deep Vadose Zone Monitoring Test Bed: FY23 Status Report. PNNL-34956. Richland, WA: Pacific Northwest National Laboratory. Deep Vadose Zone Monitoring Test Bed: FY23 Status Report

2022

• Johnson T.C., H.A. Knox, C.E. Strickland, C.M. Johnson, J.D. Lowrey, D.P. Sprinkle, and D.C. Linneman, et al. 2022. "3D time-lapse electrical resistivity imaging of rock damage patterns and gas flow paths resulting from two underground chemical explosions." Pure and Applied Geophysics 180. PNNL-SA-169928. doi:10.1007/s00024-022-03165-y
• Strickland C.E., J.M. Knox, D.E. Nelson, D. Sirota, B.Q. Roberts, D.P. Sprinkle, and H.A. Knox, et al. 2022. Real-Time Seismic System for Monitoring, Imaging, and Characterization (RT-SEISMIC). PNNL-33581. Richland, WA: Pacific Northwest National Laboratory. Real-Time Seismic System for Monitoring, Imaging, and Characterization (RT-SEISMIC)

2021

• Burghardt J.A., D.P. Sprinkle, G. Jian, and T.C. Johnson. 2021. Creation of Laboratory-scale Testbed for Autonomous Monitoring and Control of Subsurface Systems. PNNL-30847. Richland, WA: Pacific Northwest National Laboratory. Creation of Laboratory-scale Testbed for Autonomous Monitoring and Control of Subsurface Systems
• Fu P., M. Schoenball, J. Ajo-Franklin, C. Chai, M. Maceira, J. Morris, and H. Wu, et al. 2021. "Close Observation of Hydraulic Fracturing at EGS Collab Experiment 1: Fracture Trajectory, Microseismic Interpretations, and the Role of Natural Fractures." Journal of Geophysical Research: Solid Earth 126, no. 7:Article No. e2020JB020840. PNNL-SA-163986. doi:10.1029/2020JB020840

2020

• Schoenball M., J. Ajo-Franklin, D.A. Blankenship, C. Chai, A. Chakravarty, P.F. Dobson, and C. Hopp, et al. 2020. "Creation of a mixed-mode fracture network at mesoscale through hydraulic fracturing and shear stimulation." Journal of Geophysical Research: Solid Earth 125, no. 12:e2020JB019807. PNNL-SA-151887. doi:10.1029/2020JB019807