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# Rosemary Knight

##
The George L. Harrington Professor in the School of Earth, Energy & Environmental Sciences and Senior Fellow, by courtesy, at the Woods Institute for the Environment

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Research

I am working with my students to find ways of using geophysical methods to understand the processes occurring in the top 100 meters of Earth. With geophysical methods we can non-invasively acquire images of this near-surface region, allowing us to monitor systems and extract information that cannot be obtained using more traditional methods of drilling and direct sampling. One of our specific interests is the use of geophysical imaging for the evaluation and management of our groundwater resources. Through lab and field experiments, and computer modeling, we are developing new methods for acquiring, processing, and interpreting geophysical data. We are also conducting the laboratory and field experiments needed to determine the link between our geophysical images and subsurface properties and processes.

Teaching

An interest of mine in teaching is ensuring that all university graduates are "geo-literate." Thus a focus of my teaching has always been the education of those who are not Earth science majors. In 2000 I developed and now teach The Water Course, where students complete projects with web posters (http://pangea.stanford.edu/GP/courses/GP104/waterscape/) that describe the source, quantity, and quality of water in their hometowns. Through this course students gain a perspective on water-related issues around the world. I am now leading an effort at Stanford, referred to as I-Earth (Introduction to Planet Earth), where our objective is to offer a set of courses that explore the intersection between natural and human systems. My ultimate goal is to have one of these courses required for all students, so that an understanding of planet Earth is recognized as essential to education in the 21st century.

Professional Activities

Chair, Stanford Faculty Senate (2011-12); Chair, US Dept of Energy Earth Science Council (2010-); Chair, Organizing Committee AGU-SEG Hydrogeophysics Workshop (2011-12); Senior Fellow, Woods Institute for the Environment (2005-present); Co-founder and Chair, Near-Surface Geophysics Focus Group, American Geophysical Union (2005-2007); Stanford Budget Group (2004-); Stanford Faculty Senate (2002-06); Chair, Stanford Committee on Undergraduate Standards and Policy (2004-06); PI, CUAHSI Hydrologic Measurement Facility-Geophysics (2005-); co-organizer, Society of Exploration Geophysicists (SEG) Research Workshop on Hydrogeophysics (2006); U.S. Dept. of Energy Earth Sciences Council (2001-); associate editor, Water Resources Research (2004); vice-president, SEG (2001-02); Frank Frischknecht Award, SEG (2002); editorial board, The Leading Edge (1996-2000); distinguished lecturer, SEG (1998); National Academy of Sciences Committee on Non-Invasive Characterization of the Shallow Subsurface for Environmental and Engineering Applications (1995-99); distinguished lecturer, Canadian Geophysical Union (1994-95); founding member, Environmental and Engineering Geophysical Society (1991)

I am working with my students to find ways of using geophysical methods to understand the processes occurring in the top 100 meters of Earth. With geophysical methods we can non-invasively acquire images of this near-surface region, allowing us to monitor systems and extract information that cannot be obtained using more traditional methods of drilling and direct sampling. One of our specific interests is the use of geophysical imaging for the evaluation and management of our groundwater resources. Through lab and field experiments, and computer modeling, we are developing new methods for acquiring, processing, and interpreting geophysical data. We are also conducting the laboratory and field experiments needed to determine the link between our geophysical images and subsurface properties and processes.

Teaching

An interest of mine in teaching is ensuring that all university graduates are "geo-literate." Thus a focus of my teaching has always been the education of those who are not Earth science majors. In 2000 I developed and now teach The Water Course, where students complete projects with web posters (http://pangea.stanford.edu/GP/courses/GP104/waterscape/) that describe the source, quantity, and quality of water in their hometowns. Through this course students gain a perspective on water-related issues around the world. I am now leading an effort at Stanford, referred to as I-Earth (Introduction to Planet Earth), where our objective is to offer a set of courses that explore the intersection between natural and human systems. My ultimate goal is to have one of these courses required for all students, so that an understanding of planet Earth is recognized as essential to education in the 21st century.

Professional Activities

Chair, Stanford Faculty Senate (2011-12); Chair, US Dept of Energy Earth Science Council (2010-); Chair, Organizing Committee AGU-SEG Hydrogeophysics Workshop (2011-12); Senior Fellow, Woods Institute for the Environment (2005-present); Co-founder and Chair, Near-Surface Geophysics Focus Group, American Geophysical Union (2005-2007); Stanford Budget Group (2004-); Stanford Faculty Senate (2002-06); Chair, Stanford Committee on Undergraduate Standards and Policy (2004-06); PI, CUAHSI Hydrologic Measurement Facility-Geophysics (2005-); co-organizer, Society of Exploration Geophysicists (SEG) Research Workshop on Hydrogeophysics (2006); U.S. Dept. of Energy Earth Sciences Council (2001-); associate editor, Water Resources Research (2004); vice-president, SEG (2001-02); Frank Frischknecht Award, SEG (2002); editorial board, The Leading Edge (1996-2000); distinguished lecturer, SEG (1998); National Academy of Sciences Committee on Non-Invasive Characterization of the Shallow Subsurface for Environmental and Engineering Applications (1995-99); distinguished lecturer, Canadian Geophysical Union (1994-95); founding member, Environmental and Engineering Geophysical Society (1991)

2014-15

- Environmental Geophysics

GEOPHYS 385B (Aut, Win, Spr, Sum) - Near-Surface Geophysics

GEOPHYS 190 (Spr) - The Water Course

EARTHSYS 104, GEOPHYS 104 (Win)

Independent Study Courses

- Directed Individual Study in Earth Systems

EARTHSYS 297 (Aut, Win, Spr, Sum) EARTHSYS 297 (Aut, Win, Spr, Sum) - Directed Individual Study in Environment and Resources

ENVRES 398 (Win) ENVRES 398 (Win) - Directed Reading

GEOPHYS 100 (Win, Spr) GEOPHYS 100 (Win, Spr) - Directed Research

EARTHSYS 250 (Aut, Win, Spr, Sum) EARTHSYS 250 (Aut, Win, Spr, Sum) - Honors Program

GEOPHYS 198 (Aut, Win, Spr) GEOPHYS 198 (Aut, Win, Spr) - Honors Program in Earth Systems

EARTHSYS 199 (Aut, Win, Spr, Sum) EARTHSYS 199 (Aut, Win, Spr, Sum) - Internship

EARTHSYS 260 (Sum) EARTHSYS 260 (Sum) - Report on Energy Industry Training

GEOPHYS 255 (Sum) GEOPHYS 255 (Sum) - Research in Earth, Energy, and Environmental Sciences

EEES 400 (Aut, Win, Spr, Sum) EEES 400 (Aut, Win, Spr, Sum) - Research in Geophysics

GEOPHYS 400 (Aut, Win, Spr, Sum) GEOPHYS 400 (Aut, Win, Spr, Sum) - Undergraduate Research in Geophysics

GEOPHYS 196 (Aut) GEOPHYS 196 (Aut)

2013-14

- Electromagnetic Properties of Geological Materials

GEOPHYS 270 (Win) - Environmental Geophysics

GEOPHYS 385B (Aut, Win, Spr, Sum) - The Water Course

EARTHSYS 104, GEOPHYS 104 (Spr)

Independent Study Courses

- Directed Individual Study in Earth Systems

EARTHSYS 297 (Aut, Win, Spr, Sum) EARTHSYS 297 (Aut, Win, Spr, Sum) - Directed Individual Study in Environment and Resources

ENVRES 398 (Win) ENVRES 398 (Win) - Directed Reading

GEOPHYS 100 (Win, Spr) GEOPHYS 100 (Win, Spr) - Directed Research

EARTHSYS 250 (Aut, Win, Spr, Sum) EARTHSYS 250 (Aut, Win, Spr, Sum) - Honors Program

GEOPHYS 198 (Aut, Win, Spr) GEOPHYS 198 (Aut, Win, Spr) - Honors Program in Earth Systems

EARTHSYS 199 (Aut, Win, Spr, Sum) EARTHSYS 199 (Aut, Win, Spr, Sum) - Internship

EARTHSYS 260 (Sum) EARTHSYS 260 (Sum) - Report on Energy Industry Training

GEOPHYS 255 (Sum) GEOPHYS 255 (Sum) - Research in Earth, Energy, and Environmental Sciences

EEES 400 (Aut, Win, Spr, Sum) EEES 400 (Aut, Win, Spr, Sum) - Research in Geophysics

GEOPHYS 400 (Aut, Win, Spr, Sum) GEOPHYS 400 (Aut, Win, Spr, Sum) - Undergraduate Research in Geophysics

GEOPHYS 196 (Aut) GEOPHYS 196 (Aut)

2012-13

- Environmental Geophysics

GEOPHYS 385B (Aut, Win, Spr, Sum) - The Water Course

THINK 33 (Spr)

Independent Study Courses

- Directed Individual Study in Earth Systems

EARTHSYS 297 (Aut, Win, Spr, Sum) EARTHSYS 297 (Aut, Win, Spr, Sum) - Directed Individual Study in Environment and Resources

ENVRES 398 (Win) ENVRES 398 (Win) - Directed Reading

GEOPHYS 100 (Win, Spr) GEOPHYS 100 (Win, Spr) - Directed Research

EARTHSYS 250 (Aut, Win, Spr, Sum) EARTHSYS 250 (Aut, Win, Spr, Sum) - Honors Program

GEOPHYS 198 (Aut, Win, Spr) GEOPHYS 198 (Aut, Win, Spr) - Honors Program in Earth Systems

EARTHSYS 199 (Aut, Win, Spr, Sum) EARTHSYS 199 (Aut, Win, Spr, Sum) - Internship

EARTHSYS 260 (Sum) EARTHSYS 260 (Sum) - Report on Energy Industry Training

GEOPHYS 255 (Sum) GEOPHYS 255 (Sum) - Research in Earth, Energy, and Environmental Sciences

EEES 400 (Aut, Win, Spr, Sum) EEES 400 (Aut, Win, Spr, Sum) - Research in Geophysics

GEOPHYS 400 (Aut, Win, Spr, Sum) GEOPHYS 400 (Aut, Win, Spr, Sum) - Undergraduate Research in Geophysics

GEOPHYS 196 (Aut) GEOPHYS 196 (Aut)

2011-12

- Environmental Geophysics

GEOPHYS 385B (Aut, Win, Spr, Sum) - Near-Surface Geophysics

GEOPHYS 190 (Spr)

Independent Study Courses

- Directed Individual Study in Earth Systems

EARTHSYS 297 (Aut, Win, Spr, Sum) EARTHSYS 297 (Aut, Win, Spr, Sum) - Directed Individual Study in Environment and Resources

ENVRES 398 (Win) ENVRES 398 (Win) - Directed Reading

GEOPHYS 100 (Win, Spr) GEOPHYS 100 (Win, Spr) - Directed Research

EARTHSYS 250 (Aut, Win, Spr, Sum) EARTHSYS 250 (Aut, Win, Spr, Sum) - Honors Program

GEOPHYS 198 (Aut, Win, Spr) GEOPHYS 198 (Aut, Win, Spr) - Honors Program in Earth Systems

EARTHSYS 199 (Aut, Win, Spr, Sum) EARTHSYS 199 (Aut, Win, Spr, Sum) - Internship

EARTHSYS 260 (Sum) EARTHSYS 260 (Sum) - Report on Energy Industry Training

GEOPHYS 255 (Sum) GEOPHYS 255 (Sum) - Research in Earth, Energy, and Environmental Sciences

EEES 400 (Aut, Win, Spr, Sum) EEES 400 (Aut, Win, Spr, Sum) - Research in Geophysics

GEOPHYS 400 (Aut, Win, Spr, Sum) GEOPHYS 400 (Aut, Win, Spr, Sum) - Undergraduate Research in Geophysics

GEOPHYS 196 (Aut) GEOPHYS 196 (Aut)

Postdoctoral Advisees:

- Reeves, J. A., Knight, R., & Zebker, H. A. (2014). An Analysis of the Uncertainty in InSAR Deformation Measurements for Groundwater Applications in Agricultural Areas.
*IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING*,*7*(7), 2992-3001. - Parsekian, A. D., Regnery, J., Wing, A. D., Knight, R., & Drewes, J. E. (2014). Geophysical and Hydrochemical Identification of Flow Paths with Implications for Water Quality at an ARR Site.
*GROUND WATER MONITORING AND REMEDIATION*,*34*(3), 105-116. - Walbrecker, J. O., Kalisky, B., Grombacher, D., Kirtley, J., Moler, K. A., & Knight, R. (2014). Direct measurement of internal magnetic fields in natural sands using scanning SQUID microscopy.
*JOURNAL OF MAGNETIC RESONANCE*,*242*, 10-17. - Walbrecker, J. O., Knight, R., & Grunewald, E. (2014). The impact of prepolarization on Earth's field laboratory nuclear-magnetic-resonance relaxation experiments.
*GEOPHYSICS*,*79*(3), EN39-EN48. - Reeves, J. A., Knight, R., Zebker, H. A., Kitanidis, P. K., & Schreueder, W. A. (2014). Estimating temporal changes in hydraulic head using InSAR data in the San Luis Valley, Colorado.
*WATER RESOURCES RESEARCH*,*50*(5), 4459-4473. - Dlubac, K., Knight, R., & Keating, K. (2014). A numerical study of the relationship between NMR relaxation and permeability in sands and gravels.
*NEAR SURFACE GEOPHYSICS*,*12*(2), 219-230. - Grunewald, E., Knight, R., & Walsh, D. (2014). Advancement and validation of surface nuclear magnetic resonance spin-echo measurements of T-2.
*GEOPHYSICS*,*79*(2), EN15-EN23. - Grombacher, D., Walbrecker, J. O., & Knight, R. (2014). Quantifying background magnetic-field inhomogeneity for improved interpretation of free induction decay measurements.
*GEOPHYSICS*,*79*(1), E11-E21. - Nenna, V., & Knight, R. (2014). Demonstration of a value of information metric to assess the use of geophysical data for a groundwater application.
*GEOPHYSICS*,*79*(1), E51-E60. - Mueller-Petke, M., Walbrecker, J. O., & Knight, R. (2013). The inversion of surface-NMR T-1 data for improved aquifer characterization.
*GEOPHYSICS*,*78*(6), EN83-EN94. - Herckenrath, D., Odlum, N., Nenna, V., Knight, R., Auken, E., & Bauer-Gottwein, P. (2013). Calibrating a Salt Water Intrusion Model with Time-Domain Electromagnetic Data.
*GROUND WATER*,*51*(3), 385-397. - Trainor-Guitton, W. J., Mukerji, T., & Knight, R. (2013). A methodology for quantifying the value of spatial information for dynamic Earth problems.
*STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT*,*27*(4), 969-983. - Dlubac, K., Knight, R., Song, Y.-Q., Bachman, N., Grau, B., & Williams, J. (2013). Use of NMR logging to obtain estimates of hydraulic conductivity in the High Plains aquifer, Nebraska, USA.
*WATER RESOURCES RESEARCH*,*49*(4), 1871-1886. - Nenna, V., Herckenrath, D., Knight, R., Odlum, N., & McPhee, D. (2013). Application and evaluation of electromagnetic methods for imaging saltwater intrusion in coastal aquifers: Seaside Groundwater Basin, California.
*GEOPHYSICS*,*78*(2), B77-B88. - Parsekian, A. D., Grosse, G., Walbrecker, J. O., Mueller-Petke, M., Keating, K., & Knight, R. (2013). Detecting unfrozen sediments below thermokarst lakes with surface nuclear magnetic resonance.
*GEOPHYSICAL RESEARCH LETTERS*,*40*(3), 535-540. - Mawer, C., Kitanidis, P., Pidlisecky, A., & Knight, R. (2013). Electrical Resistivity for Characterization and Infiltration Monitoring beneath a Managed Aquifer Recharge Pond.
*VADOSE ZONE JOURNAL*,*12*(1). - Pidlisecky, A., Cockett, A. R., & Knight, R. (2013). Electrical Conductivity Probes for Studying Vadose Zone Processes: Advances in Data Acquisition and Analysis.
*VADOSE ZONE JOURNAL*,*12*(1). - Nenna, V., & Knight, R. (2013). (In Revision) Demonstration of a value of information metric for assessing the use of geophysical data for a groundwater application.
*Geophysics*. - Grunewald, E., Knight, R., & Walsh, D. (2013). Advancement and validation of surface NMR spin echo measurements of T2.
*Geophysics*. - Grombacher, D., Walbrecker, J., & Knight, R. (2013). Composite pulses to quantify background magnetic field inhomogeneity.
*Geophysics*. - Dlubac, K., & Knight, R. (2013). A numerical study of the relationship between NMR relaxation and permeability in sands and gravels, submitted to Near Surface Geophysics.
*Near Surface Geophysics*. - Walbrecker, J. O., & Knight, R. (2013). The impact of prepolarization on Earth field laboratory NMR experiments.
*Geophysics*. - Knight, R., Grunewald, E., Dlubac, K., Walsh, D., & Butler, J. (2013). A New Methodology for the Integration of Logging and Surface NMR to Map Hydraulic Conductivity.
*Water Resources Research*. - Reeves, J. A., Knight, R., & Zebker, H. A. (2013). An analysis of the uncertainty in InSAR deformation measurements for groundwater applications.
*IEEE Transactions on Geoscience and Remote Sensing*. - Nenna, V., Herckenrath, D., Knight, R., Odlum, N., & McPhee, D. (2013). Sentinel geophysics for coastal aquifers in northern California: Application and evaluation of electromagnetic methods.
*Geophysics*,*78*. - Keating, K., & Knight, R. (2012). The effect of spatial variation in surface relaxivity on nuclear magnetic resonance relaxation rates.
*GEOPHYSICS*,*77*(5), E365-E377. - Knight, R., Grunewald, E., Irons, T., Dlubac, K., Song, Yq., & Cannia, J. (2012). Field experiment provides ground truth for surface nuclear magnetic resonance measurement.
*GEOPHYSICAL RESEARCH LETTERS*,*39*. - Grunewald, E., & Knight, R. (2012). Nonexponential decay of the surface-NMR signal and implications for water content estimation.
*GEOPHYSICS*,*77*(1), EN1-EN9. - Grunewald, E., & Knight, R. (2012). Conditions leading to non-exponential T2 relaxation and implications for surface NMR measurements.
*Geophysics*,*77*. - Knight, R., Grunewald, E., Irons, T., Dlubac., K., Song, Y.- q, & Cannia, J. (2012). Field experiment provides ground truth for surface NMR measurement.
*Geophysical Research Letters*. - Herckenrath, D., Odlum, N., Nenna, V., Auken, E., Knight, R., & Bauer-Gottwein, P. (2012). Calibrating a saltwater intrusion model with time domain electromagnetic data.
*Groundwater*. - Reeves, J. A., Knight, R., Zebker, H. A., Schreueder, W. A., Agram, P. S., & Lauknes, T. R. (2011). High quality InSAR data linked to seasonal change in hydraulic head for an agricultural area in the San Luis Valley, Colorado.
*WATER RESOURCES RESEARCH*,*47*. - Nenna, V., Pidlisecky, A., & Knight, R. (2011). Application of an extended Kalman filter approach to inversion of time-lapse electrical resistivity imaging data for monitoring recharge.
*WATER RESOURCES RESEARCH*,*47*. - Nenna, V., Pidlisecky, A., & Knight, R. (2011). Informed experimental design for electrical resistivity imaging.
*NEAR SURFACE GEOPHYSICS*,*9*(5), 469-482. - Grunewald, E., & Knight, R. (2011). A laboratory study of NMR relaxation times in unconsolidated heterogeneous sediments.
*GEOPHYSICS*,*76*(4), G73-G83. - Pidlisecky, A., & Knight, R. (2011). The Use of Wavelet Analysis to Derive Infiltration Rates from Time-Lapse One-Dimensional Resistivity Records.
*VADOSE ZONE JOURNAL*,*10*(2), 697-705. - Grunewald, E., & Knight, R. (2011). The effect of pore size and magnetic susceptibility on the surface NMR relaxation parameter T-2*.
*NEAR SURFACE GEOPHYSICS*,*9*(2), 169-178. - Reeves, J. A., Knight, R., Zebker, H. A., Schreüder, W. A., Agram, P. S., & Lauknes, T. R. (2011). Linking interferometric synthetic aperture radar data and seasonal head change for an agricultural area in the San Luis Valley, Colorado.
*Water Resources Research*,*47*. - Knight, R., Pyrak-Nolte, L. J., Slater, L., Atekwana, E., Endres, A., & Straley, C. (2010). GEOPHYSICS AT THE INTERFACE: RESPONSE OF GEOPHYSICAL PROPERTIES TO SOLID-FLUID, FLUID-FLUID, AND SOLID-SOLID INTERFACES.
*REVIEWS OF GEOPHYSICS*,*48*. - Keating, K., & Knight, R. (2010). A laboratory study of the effect of Fe(II)-bearing minerals on nuclear magnetic resonance (NMR) relaxation measurements.
*GEOPHYSICS*,*75*(3), F71-F82. - Pidlisecky, A., Knight, R., & Howie, J. A. (2010). Improved interpretation of resistivity cone penetration testing logs through forward modeling and inversion.
*Journal of Applied Geophysics*. - Mitchell, V., Pidlisecky, A., & Knight, R. (2010). Inversion of time-lapse electrical resistivity imaging data for monitoring infiltration.
*Proceedings Society of Exploration Geophysicists Annual Convention*, 1950. Presented at the Society of Exploration Geophysicists Annual Convention. - Dlubac, K. I., & Knight, R. J. (2010). An assessment of the use of the Kozeny-Carman equation to estimate permeability in anisotropic materials from.
*roceedings of the Society of Exploration Geophysicists Annual Convention*, 2644-2648. Presented at the Society of Exploration Geophysicists Annual Convention. - Grunewald, E. D., & Knight, R. (2010). Conditions leading to non-exponential decay of the surface-NMR signal and implications for water content estimation.
*Proceedings of the Society of Exploration Geophysicists Annual Convention*. Presented at the Society of Exploration Geophysicists Annual Convention. - Irving, J., Knight, R., & Holliger, K. (2009). Estimation of the lateral correlation structure of subsurface water content from surface-based ground-penetrating radar reflection images.
*WATER RESOURCES RESEARCH*,*45*. - Grunewald, E., & Knight, R. (2009). A laboratory study of NMR relaxation times and pore coupling in heterogeneous media.
*GEOPHYSICS*,*74*(6), E215-E221. - Haines, S. S., Pidlisecky, A., & Knight, R. (2009). Hydrogeologic structure underlying a recharge pond delineated with shear-wave seismic reflection and cone penetrometer data.
*NEAR SURFACE GEOPHYSICS*,*7*(5-6), 329-339. - Grunewald, E., & Knight, R. (2009). Interpreting Earth's field NMR measurements of T2 for hydrogeologic applications.
*Proceedings of the 4th International Workshop on Magnetic Resonance Sounding*. Presented at the 4th International Workshop on Magnetic Resonance Sounding. - Crook, N., Binley, A., Knight, R., Robinson, D. A., Zarnetske, J., & Haggerty, R. (2008). Electrical resistivity imaging of the architecture of substream sediments.
*WATER RESOURCES RESEARCH*,*44*. - Pidlisecky, A., & Knight, R. (2008). FW2_5D: A MATLAB 2.5-D electrical resistivity modeling code.
*COMPUTERS & GEOSCIENCES*,*34*(12), 1645-1654. - Keating, K., & Knight, R. (2008). A laboratory study of the effect of magnetite on NMR relaxation rates.
*JOURNAL OF APPLIED GEOPHYSICS*,*66*(3-4), 188-196. - Robinson, D. A., Abdu, H., Jones, S. B., Seyfried, M., Lebron, I., & Knight, R. (2008). Eco-Geophysical Imaging of Watershed-Scale Soil Patterns Links with Plant Community Spatial Patterns.
*VADOSE ZONE JOURNAL*,*7*(4), 1132-1138. - Keating, K., Knight, R., & Tufano, K. J. (2008). Nuclear magnetic resonance relaxation measurements as a means of monitoring iron mineralization processes.
*GEOPHYSICAL RESEARCH LETTERS*,*35*(19). - Robinson, D. A., Binley, A., Crook, N., Day-Lewis, F. D., Ferre, T. Pa., & Slater, L. (2008). Advancing process-based watershed hydrological research using near-surface geophysics: a vision for, and review of, electrical and magnetic geophysical methods.
*HYDROLOGICAL PROCESSES*,*22*(18), 3604-3635. - Robinson, D. A., Campbell, C. S., Hopmans, J. W., Hornbuckle, B. K., Jones, S. B., & Wendroth, O. (2008). Soil moisture measurement for ecological and hydrological watershed-scale observatories: A review.
*VADOSE ZONE JOURNAL*,*7*(1), 358-389. - Bryar, T. R., & Knight, R. J. (2008). NMR relaxation measurements to quantify immiscible organic contaminants in sediments.
*WATER RESOURCES RESEARCH*,*44*(2). - Irving, J. D., Knoll, M. D., & Knight, R. J. (2007). Improving crosshole radar velocity tomograms: A new approach to incorporating high-angle traveltime data.
*GEOPHYSICS*,*72*(4), J31-J41. - Pidlisecky, A., Haber, E., & Knight, R. (2007). RESINVM3D: A 3D resistivity inversion package.
*GEOPHYSICS*,*72*(2), H1-H10. - Keating, K., & Knight, R. (2007). A laboratory study to determine the effect of iron oxides on proton NMR measurements.
*GEOPHYSICS*,*72*(1), E27-E32. - Irving, J., Knoll, M., & Knight, R. (2007). Improving crosshole GPR travel-time tomography between closely spaced boreholes at the Boise Hydrogeophysical Research Site.
*Geophysics*,*72*. - Knight, R., Irving, J., Tercier, P., Freeman, G., Murray, C., & Rockhold, M. (2007). A comparison of the use of radar images and neutron probe data to determine the horizontal correlation length of water content.
*AGU Geophysical Monograph Series*,*171*. - Irving, J., & Knight, R. (2006). Numerical modeling of ground-penetrating radar in 2-D using MATLAB.
*COMPUTERS & GEOSCIENCES*,*32*(9), 1247-1258. - Moysey, S., Knight, R. J., & Jol, H. M. (2006). Texture-based classification of ground-penetrating radar images.
*GEOPHYSICS*,*71*(6), K111-K118. - Pidlisecky, A., Knight, R., & Haber, E. (2006). Cone-based electrical resistivity tomography.
*GEOPHYSICS*,*71*(4), G157-G167. - Irving, J. D., & Knight, R. J. (2006). Numerical simulation of antenna transmission and reception for crosshole ground-penetrating radar.
*GEOPHYSICS*,*71*(2), K37-K45. - Moysey, S., Knight, R. J., & Singha, K. (2006). Relating geophysical and hydrologic properties using field-scale rock physics.
*Proceedings CMWR XVI-Computational Methods in Water Resources*, 8 p.. Presented at the CMWR XVI-Computational Methods in Water Resources. - Robinson, D. A., Binley, A., Crook, N., Day-Lewis, F. D., Ferre, Tp. A., & Slater, L. (2006).
*A vision for geophysics instrumentation in watershed hydrological research*. Inc. Advancement of Hydrologic Sciences. - Irving, J. D., & Knight, R. J. (2005). Effect of antennas on velocity estimates obtained from crosshole GPR data.
*GEOPHYSICS*,*70*(5), K39-K42. - Moysey, S., Singha, K., & Knight, R. (2005). A framework for inferring field-scale rock physics relationships through numerical simulation.
*GEOPHYSICAL RESEARCH LETTERS*,*32*(8). - Knight, R. J., & Pidlisecky, A. (2005). A Cone-based geophysical imaging: A new solution to a challenging problem.
*The Leading Edge*. - Irving, J., & Knight, R. (2005). Accounting for the effect of antenna length to improve crosshole GPR velocity estimates.
*Proceedings of the*, 2005. Presented at the SEG 75th Annual Meeting. - Knight, R., Tercier, P., & Irving, J. (2004). The effect of vertical measurement resolution on the correlation structure of a ground penetrating radar reflection image.
*GEOPHYSICAL RESEARCH LETTERS*,*31*(21). - Moysey, S., & Knight, R. (2004). Modeling the field-scale relationship between dielectric constant and water content in heterogeneous systems.
*WATER RESOURCES RESEARCH*,*40*(3). - Knight, R., & Endres, A. (2004).
*An Introduction to Rock Physics for Near-Surface Applications in Near-Surface Geophysics*. (E. D. Butler, Ed.)*Volume 1: Concepts and Fundamentals*. Society of Exploration Geophysicists. - Moysey, S., Caers, J., Knight, R., & Allen-King, R. M. (2003). Stochastic estimation of facies using ground penetrating radar data.
*STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT*,*17*(5), 306-318. - Taylor, S. R., & Knight, R. J. (2003). An inclusion-based model of elastic wave velocities incorporating patch-scale fluid pressure relaxation.
*GEOPHYSICS*,*68*(5), 1503-1509. - Taylor, S. R., & Knight, R. J. (2003). Incorporating mechanisms of fluid pressure relaxation into inclusion-based models of elastic wave velocities.
*GEOPHYSICS*,*68*(4), 1173-1181. - Irving, J. D., & Knight, R. J. (2003). Removal of wavelet dispersion from ground-penetrating radar data.
*GEOPHYSICS*,*68*(3), 960-970. - Bryar, T. R., & Knight, R. J. (2003). Laboratory studies of the effect of sorbed oil on proton nuclear magnetic resonance.
*GEOPHYSICS*,*68*(3), 942-948. - Moysey, S., Knight, R., Allen-King, R. M., & Caers, J. (2003). The construction of stochastic facies-based models conditioned to ground penetrating radar images.
*CALIBRATION AND RELIABILITY IN GROUNDWATER MODELLING: A FEW STEPS CLOSER TO REALITY*, (277), 395-401. - Pidlisecky, A., Haber, E., & Knight, R. J. (2003). Assessment of the Use of Cone-Based Resistivity Imaging.
*Proceedings of the Symposium on the Application of Geophysics to Engineering and Environmental Problem*. Presented at the Symposium on the Application of Geophysics to Engineering and Environmental Problems. - Bryar, T. R., & Knight, R. J. (2003). Detection limits for immiscible liquid organic contaminants using proton nuclear magnetic resonance.
*Proceedings of the Symposium on the Application of Geophysics to Engineering and Environmental Problems*. Presented at the Symposium on the Application of Geophysics to Engineering and Environmental Problems, San Antonio, TX,. - Bryar, T. R., & Knight, R. J. (2003). Laboratory studies of the detection of sorbed oil with proton nuclear magnetic resonance.
*Geophysics*,*68*. - Irving, J. D., & Knight, R. J. (2003). Saturation-dependent anisotropy in borehole radar data. Presented at the Proceedings of the Symposium on the Application of Geophysics to Engineering and Environmental Problems.
- Knight, R. J., Irving, J., Freeman, E., & Tercier, P. (2003). The use of ground penetrating radar for site characterization at Hanford.
*Proceedings of the Symposium on the Application of Geophysics to Engineering and Environmental ProbleMS*. Presented at the Symposium on the Application of Geophysics to Engineering and Environmental Problems. - Bryar, T. R., & Knight, R. J. (2002). Sensitivity of nuclear magnetic resonance relaxation measurements to changing soil redox conditions.
*GEOPHYSICAL RESEARCH LETTERS*,*29*(24). - Jarvis, K., & Knight, R. J. (2002). Aquifer heterogeneity from SH-wave seismic impedance inversion, accepted for publication.
*Geophysics*,*67*. - Li, C., Tercier, P., & Knight, R. (2001). Effect of sorbed oil on the dielectric properties of sand and clay.
*WATER RESOURCES RESEARCH*,*37*(6), 1783-1793. - Chan, C. Y., & Knight, R. J. (2001). Laboratory measurements of electromagnetic wave velocity in layered sands.
*Water Resources Research*,*37*. - Li, C., Tercier, P., & Knight, R. (2001). The effect of adsorbed oil on the dielectric properties of sand and clay.
*Water Resources Research*,*37*. - Knight, R. (2001). Ground penetrating radar for environmental applications.
*ANNUAL REVIEW OF EARTH AND PLANETARY SCIENCES*,*29*, 229-255. - Tercier, P., Knight, R., & Jol, H. (2000). A comparison of the correlation structure in GPR images of deltaic and barrier-spit depositional environments.
*GEOPHYSICS*,*65*(4), 1142-1153. - Daughney, C. J., Bryar, T. R., & Knight, R. J. (2000). Detecting sorbed hydrocarbons in a porous medium using proton nuclear magnetic resonance.
*ENVIRONMENTAL SCIENCE & TECHNOLOGY*,*34*(2), 332-337. - Irving, J., & Knight, R. J. (2000). Estimation and correction of wavelet dispersion in GPR Data.
*Proceedings of the Eighth International Conference on Ground Penetrating Radar*, 123-129. Presented at the GPR 2000, the Eighth International Conference on Ground Penetrating Radar. - Bryar, T. R., Daughney, C. J., & Knight, R. J. (2000). Paramagnetic effects of iron(III) species on nuclear magnetic relaxation of fluid protons in porous media.
*JOURNAL OF MAGNETIC RESONANCE*,*142*(1), 74-85. - Irving, J., & Knight, R. (2000). Estimation and correction of wavelet dispersion in GPR data.
*GPR 2000: PROCEEDINGS OF THE EIGHTH INTERNATIONAL CONFERENCE ON GROUND PENETRATING RADAR*,*4084*, 561-566. - Knight, R. (2000).
*Noninvasive characterization of the shallow subsurface for environmental and engineering applications*.*Seeing into the Earth*(269p ). Washington National Academy Press. - Jarvis, K., & Knight, R. J. (2000). Near-surface VSP surveys using the seismic cone penetrometer.
*Geophysics*,*65*. - Tercier, P., Knight, R. J., & Jol, H. (2000). A comparison of the correlation structure in GPR images of deltaic and barrier spit depositional environments.
*Geophysics*,*65*. - Daughney, C., Bryar, T., & Knight, R. J. (2000). Detecting sorbed hydrocarbons in a porous medium using proton nuclear magnetic resonance.
*Environmental Science and Technology*,*34*. - Bryar, T., Daughney, C., & Knight, R. J. (2000). Effects of paramagnetic iron (III) species on nuclear magnetic resonance relaxation of saturated sands.
*Journal of Magnetic Resonance*,*142*. - Chan, C., & Knight, R. J. (1999). Accounting for saturation heterogeneity in obtaining estimate of water content from dielectric data.
*Conference Proceedings from The Symposium on the Application of Geophysics to Engineering and Environmental Problems (SAGEEP)*, 435-444. Presented at the Symposium on the Application of Geophysics to Engineering and Environmental Problems (SAGEEP). - Turner, Rj. W., Knight, R. J., & Rick, J. (1999). Geological landscape of the pre-Inca archeological site at Chavin de Huantar, Peru.
*Geological Survey of Canada, Current Research*. - Jarvis, K., Knight, R. J., & Howie, J. (1999). Geotechnical applications of VSP surveys using the seismic cone penetrometer.
*Conference Proceedings from Symposium on the Application of Geophysics to Engineering and Environmental Problems (SAGEEP)*, 11-20. Presented at the Symposium on the Application of Geophysics to Engineering and Environmental Problems (SAGEEP). - Rust, A. C., Russell, J. K., & Knight, R. J. (1999). Dielectric constant as a predictor of porosity in dry volcanic rocks.
*Journal of Volcanology and Geophysical Research*,*91*. - Chan, C. Y., & Knight, R. J. (1999). Determining water content and saturation from dielectric measurements in layered materials.
*Water Resources Research*,*35*. - Knight, R., Dvorkin, J., & Nur, A. (1998). Acoustic signatures of partial saturation.
*GEOPHYSICS*,*63*(1), 132-138. - Goertz, D., & Knight, R. J. (1998). Elastic wave velocities during evaporative drying.
*Geophysics*,*63*. - Rea, J., & Knight, R. J. (1998).
*Characterization of the Brookswood aquifer using ground penetrating radar*. (B. D. Ricketts, Ed.)*Aquifer Delineation, Fraser Lowlands and Delta, B.C.: Mapping, Geophysics, and Groundwater Modeling*. Geological Survey of Canada. - Kanters, W., Knight, R. J., & Mackay, A. (1998). Effects of wettability and fluid chemistry on the proton NMR T1 in sands.
*Journal of Environmental and Engineering Geophysics*,*3*. - Rea, J., & Knight, R. J. (1998). Geostatistical analysis of ground penetrating radar data: a means of describing spatial variation in the subsurface.
*Water Resources*,*34*. - Butler, D., & Knight, R. J. (1998). The electrical conductivity of steam-flooded, clay-bearing sands.
*Geophysics*,*63*. - Suman, R., & Knight, R. J. (1997). Effects of pore structure and wettability on the electrical resistivity of partially saturated rocks--A network study.
*Geophysics*,*62*. - Endres, A. L., & Knight, R. J. (1997). Incorporating pore geometry and fluid pressure communication into modeling the elastic behavior of porous rocks.
*GEOPHYSICS*,*62*(1), 106-117. - Endres, A. L., & Knight, R. J. (1997). Incorporating pore geometry and fluid pressure communication into modeling the elastic behavior of porous rocks.
*Geophysics*,*61*. - Knight, R., Tercier, P., & Jol, H. (1997). The role of ground penetrating radar and geostatistics in reservoir description.
*The Leading Edge*,*16*. - Knight, R. J., Tercier, P., & Goertz, D. (1996). A laboratory procedure for estimating irreducible water saturation from cuttings.
*The Log Analyst*,*37*. - Berkowitz, B., & Knight, R. J. (1995). Continuum percolation conductivity exponents in restricted domains.
*Journal of Statistical Physics*,*80*. - Knight, R. J., & Abad, A. (1995). Rock/water interaction in dielectric properties: Experiments with hydrophobic sandstones.
*Geophysics*,*60*. - Knight, R. J., Tercier, P., & Goertz, D. (1995). A laboratory procedure for estimating irreducible water saturation from cuttings.
*Society of Professional Well Log Analysts 36th Annual Symposium Transactions*. Presented at the Society of Professional Well Log Analysts 36th Annual Symposium. - Knight, R. J. (1995). An Assessment of Geophysical Techniques for the Direct Detection of Groundwater Contaminants: A Rock Physics Perspective.
*Proceedings Canadian Geotechnical Society 48th Conference*. Presented at the Canadian Geotechnical Society 48th Conference. - Knoll, M. D., Knight, R. J., & Brown, E. (1995). Can accurate estimates of permeability be obtained from measurements of dielectric properties?.
*Proceedings, , Symposium for the Application of Geophysics to Environmental and Engineering Problems*. Presented at the Symposium for the Application of Geophysics to Environmental and Engineering Problems. - Butler, D. B., & Knight, R. J. (1995). The effect of steam quality on the electrical behavior of steam-flooded sands: A laboratory study.
*Geophysics*,*60*. - Rea, J., & Knight, R. J. (1995). The use of ground penetrating radar for aquifer characterization: an example from southwestern British Columbia.
*Proceedings, Symposium for Application of Geophysics to Environmental and Engineering Problems*, 10pp. Presented at the Symposium for Application of Geophysics to Environmental and Engineering Problems,. - Knoll, M. D., & Knight, R. J. (1994). Dielectric and hydrogeologic properties of sand-clay mixtures.
*Proceedings of the Fifith International Conference on Ground Penetrating Radar*. Presented at the Fifith International Conference on Ground Penetrating Radar. - Endres, A. L., & Knight, R. J. (1993). A MODEL FOR INCORPORATING SURFACE PHENOMENA INTO THE DIELECTRIC RESPONSE OF A HETEROGENEOUS MEDIUM.
*JOURNAL OF COLLOID AND INTERFACE SCIENCE*,*157*(2), 418-425. - Hedberg, S. A., Knight, R. J., MacKay, A. L., & Whittall, K. P. (1993). The use of nuclear magnetic resonance for studying and detecting hydrocarbon contaminants in porous rocks.
*Water Resources Research*,*29*. - Endres, A. L., & Knight, R. J. (1993). A model for incorporating surface phenomena into the dielectric response of a heterogeneous medium.
*Journal of Colloid and Interface Science*,*157*. - Gerlitz, K., Knoll, M. D., Cross, G. M., Luzitano, R. D., & Knight, R. (1993). Processing ground penetrating radar to improve resolution of near-surface targets.
*Proceedings of the Symposium on the Application of Geophysics to Environmental and Engineering Problems*. Presented at the Symposium on the Application of Geophysics to Environmental and Engineering Problems. - Endres, A. L., & Knight, R. J. (1993). Incorporating pressure communication into models for the elastic wave velocities of porous rocks: Connecting the borehole to laboratory measurements.
*Trans. SPWLA 34nd Annual Logging Symposium*, 1-16. Presented at the SPWLA 34nd Annual Logging Symposium. - Knight, R., & Dvorkin, J. (1992). SEISMIC AND ELECTRICAL-PROPERTIES OF SANDSTONES AT LOW SATURATIONS.
*JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH*,*97*(B12), 17425-17432. - Endres, A. L., & Knight, R. (1992). A THEORETICAL TREATMENT OF THE EFFECT OF MICROSCOPIC FLUID DISTRIBUTION ON THE DIELECTRIC-PROPERTIES OF PARTIALLY SATURATED ROCKS.
*GEOPHYSICAL PROSPECTING*,*40*(3), 307-324. - Endres, A. L., & Knight, R. J. (1992). A theoretical assessment of the effect of microscopic fluid distribution on the dielectric response of partially saturated rocks.
*Geophysical Prospecting*,*40*. - Endres, A. L., & Knight, R. (1991). THE EFFECTS OF PORE-SCALE FLUID DISTRIBUTION ON THE PHYSICAL-PROPERTIES OF PARTIALLY SATURATED TIGHT SANDSTONES.
*JOURNAL OF APPLIED PHYSICS*,*69*(2), 1091-1098. - Knight, R. (1991). Hysteresis in the electrical resistivity of partially saturated sandstones.
*Geophysics*,*56*. - Knight, R. J. (1991). The effect of saturation history on electrical measurements.
*Proceedings of the 4th International MGLS/KEGS Symposium on Borehole Geophysics for Minerals, Geotechnical, and Groundwater Applications, Toronto, 18-22 August*. - Knight, R. J., & Endres, A. (1991). Surface conduction at the hydrocarbon/water interface.
*Trans. SPWLA 32nd Annual Logging Symposium*, 1-10. Presented at the SPWLA 32nd Annual Logging Symposium. - Chapman, A., & Knight, R. J. (1991). The characterization of pore geometry with nuclear magnetic resonance.
*Canadian Well Logging Society Transactions*. Presented at the Canadian Well Logging Society Symposium. - Endres, A. L., & Knight, R. J. (1991). The effects of pore scale fluid distribution on the physical properties of partially saturated tight sandstones.
*Journal of Applied Physics*,*69*. - Knoll, M., Haeni, P., & Knight, R. J. (1991). Characterization of a sand and gravel aquifer using ground penetrating radar, Cape Cod, Massachusetts.
*Proceedings of USGS Toxic Substances Hydrology Technical Meeting*. Presented at the USGS Toxic Substances Hydrology Technical Meeting. - Knight, R., & NOLENHOEKSEMA, R. (1990). A LABORATORY STUDY OF THE DEPENDENCE OF ELASTIC WAVE VELOCITIES ON PORE SCALE FLUID DISTRIBUTION.
*GEOPHYSICAL RESEARCH LETTERS*,*17*(10), 1529-1532. - Knight, R., Chapman, A., & Knoll, M. (1990). NUMERICAL MODELING OF MICROSCOPIC FLUID DISTRIBUTION IN POROUS-MEDIA.
*JOURNAL OF APPLIED PHYSICS*,*68*(3), 994-1001. - Knight, R., & Endres, A. (1990). A NEW CONCEPT IN MODELING THE DIELECTRIC RESPONSE OF SANDSTONES - DEFINING A WETTED ROCK AND BULK WATER-SYSTEM.
*GEOPHYSICS*,*55*(5), 586-594. - Knight, R. J., & Nolen-Hoeksema, R. A. (1990). Laboratory study of the dependence of acoustic properties on microscopic fluid distribution.
*Trans. Society of Professional Well Log Analysts 31st Annual Logging Symposium*, 1-9. Presented at the Society of Professional Well Log Analysts 31st Annual Logging Symposium. - Endres, A., & Knight, R. J. (1990). Hysteresis in the dielectric response of partially saturated sandstones: The importance of microscopic fluid distribution.
*Trans. Society of Professional Well Log Analysts 31st Annual Logging Symposium*, 1-23. Presented at the Society of Professional Well Log Analysts 31st Annual Logging Symposium. - Knight, R. J., & Nolen-Hoeksema, R. (1990). A laboratory study of the effect of pore scale fluid distribution on elastic wave velocities.
*Geophysical Research Letters*,*17*. - Knight, R. J., & Endres, A. (1990). A new concept in modeling the dielectric response of sandstones: Defining a wetted rock and bulk water system.
*Geophysics*,*55*. - Endres, A., & Knight, R. J. (1989). The effect of microscopic fluid distribution on elastic wave velocities.
*The Log Analyst*,*30*. - Endres, A., & Knight, R. J. (1989). The effect of microscopic fluid distribution on elastic wave velocities.
*Transactions of the Society of Professional Well Log Analysts*, 20. Presented at the 30th Annual Logging Symposium. - Knight, R. J., & Endres, A. (1989). The effect of rock/water interaction in modelling the dielectric response of sandstones.
*Trans. Society of Professional Well Log Analysts 30th Annual Logging Symposium*, 1-20. Presented at the Society of Professional Well Log Analysts 30th Annual Logging Symposium. - Knight, R. J., & Nur, A. (1987). THE DIELECTRIC-CONSTANT OF SANDSTONES, 60 KHZ TO 4 MHZ.
*GEOPHYSICS*,*52*(5), 644-654. - Knight, R. J., & Nur, A. (1987). Geometrical effects in the dielectric response of partially saturated sandstones.
*The Log Analyst*,*28*. - Knight, R. J., & Nur, A. (1986). Dielectric enhancement due to the presence of thin gas pockets.
*Trans. Society of Professional Well Log Analysts Twenty Seventh Annual Logging Symposium*, 1-11. Presented at the Society of Professional Well Log Analysts Twenty Seventh Annual Logging Symposium. - Knight, R. J., Nur, A., & Raistrick, I. D. (1985). Modeling the electrical response of sandstones with an equivalent electrical circuit.
*Trans. Society of Professional Well Log Analysts Twenty Sixth Annual Logging Symposium*, 1-17. Presented at the Society of Professional Well Log Analysts Twenty Sixth Annual Logging Symposium. - Knight, R. J., & Nur, A. (1985). The effect of surface area to volume ratio on the dielectric response of sandstones.
*The Physics and Chemistry of Composite Media, Electrochemical Society of America Proceedings*,*85*. - Knight, R. J., & Nur, A. (1984). The effect of level of water saturation on the dielectric constant of sandstones.
*Trans. Society of Professional Well Log Analysts Twenty Fifth Annual Logging Symposium,*, 1-16. Presented at the Society of Professional Well Log Analysts Twenty Fifth Annual Logging Symposium. - Knight, R. J. (1983). THE USE OF COMPLEX-PLANE PLOTS IN STUDYING THE ELECTRICAL RESPONSE OF ROCKS.
*JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY*,*35*(11-1), 767-776. - Farrar, E., & Knight, R. J. (1975). K Ar and fission track geochronometry of an Eocene thermal event in the Kettle River (West Half) Map Area, Southern British Columbia: Discussion.
*Canadian Journal of Earth Sciences*,*13*.

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