Jeff Kennedy, PhD
Jeff Kennedy is a Research Hydrologist in the Arizona Water Science Center, Flagstaff Office.
My research focuses on measuring and interpreting small changes in gravity as they relate to the hydrology of alluvial basins in the southwestern U.S. Current projects focus on basin-scale monitoring of aquifer-storage change in response to pumping and artificial recharge in Phoenix and Tucson, Arizona, and Albuquerque, New Mexico.
As the geophysics specialist at the Arizona Water Science Center, I oversee the Southwest Gravity Program, a joint effort of the New Mexico, Arizona, and California Water Science Centers to collect high-quality repeat microgravity data for hydrology studies throughout the western U.S.
Professional Experience
2018-present: Research Hydrologist, Arizona Water Science Center
2018-present: Adjunct Faculty, Northern Arizona University, School of Earth and Sustainability
2008-2018: Hydrologist, Arizona Water Science Center
2006-2008: Student Hydrologist, Arizona Water Science Center
2001-2003: Hydrologic Technician, USDA-ARS Walnut Gulch Experimental Watershed
Education and Certifications
2016: PhD in Hydrology and Water Resources, University of Arizona, Tucson
2008: M.S. in Hydrology and Water Resources, University of Arizona, Tucson
2000: B.S. in Geology, Northern Arizona University, Flagstaff
Affiliations and Memberships*
American Geophysical Union
Arizona Hydrological Society
National Groundwater Association
Abstracts and Presentations
Kennedy, J., 2022, Hydrologic model calibration with repeat microgravity (Invited): AGU Frontiers in Hydrology Meeting, June 20-24, San Juan, PR
Kennedy, J., and Wildermuth, L., 2020, Monitoring the movement of artificial-recharge water with repeat microgravity surveys: 17th Biannual Symposium on Managed Aquifer Recharge, Oct. 7-9, virtual.
Bell, M., Kahler, L., Kennedy, J., Robertson, A., 2019, A Microgravity Pilot Study: Insights into Storage Change, Specific Yield, and Groundwater/Surface Water Interaction in the Mesilla Groundwater Basin, New Mexico. American Geophysical Union Fall Meeting, Dec. 9-13, San Francisco, CA
Kennedy, J., Van Westrum, D. 2019, Comparing approaches to network design and drift correction for relative-gravity surveys, American Geophysical Union Fall Meeting, Dec. 9-13, San Francisco, CA
Kennedy, J., 2019, Using cosmic-ray soil neutron sensing to separate changes in soil moisture from aquifer-storage change in gravity data, International Union of Geodesy and Geophysics General Assembly, July 8-18, Montreal, Canada.
Kennedy, J., 2018, Hydro-gravity signals, from large to small, First workshop on the international geodynamics and Earth tide service, June 18-20, Potsdam, Germany.
Kennedy, J., Macy, J., 2017, Non-invasive water-table imaging with joint DC-resistivity/microgravity/hydrologic model inversion, AGU Fall Meeting, Dec. 11-15, New Orleans, LA, Abstract NS11A-01
Kennedy, J., Bell, M., Norton, S., 2017, Using time-lapse gravity to monitor storage-change during a groundwater injection test in Albuquerque, NM, Symposium on the Application of Geophysics to Engineering and Environmental Problems (SAGEEP 2017), Denver, CO, Mar. 20-22.
Pool, D.R., J. Kennedy, P. MacQueen, and T.M. Neibauer, 2016, Hydrologic Interpretations of Long-Term Gravity Records at Tucson, Arizona, AGU Fall Meeting, Dec. 12-16, San Francisco, CA. Abstract H42D-06.
Kennedy, J., Ramirez-Hernandez, J., and E. Rodriguez Burgueño, 2015, Experimental Floods in a Time of Drought: The 2014 Pulse Flow in the Lower Colorado River, Arizona, USA, and Mexico, AGU Fall Meeting, Abstract H21B-1356.
Kennedy, J., and Ferré, T., 2014, Too Fast to Measure: Network Adjustment of Rapidly Changing Gravity Fields: AGU Fall Meeting, Dec. 15-19, San Francisco, CA. Abstract 43C-02
Kennedy, J., Ferré, T.P., Abe, M., and Güntner, A., 2013, Increased accuracy through variable-baseline gradient measurements with multiple superconducting gravimeters: AGU Fall Meeting, Dec. 9–13, San Francisco, CA. Abstract G11A-0906
Kennedy, J., Ferré, T., Creutzfeldt, B., Güntner, A., Neumeyer, J., Brinton, E., and Warburton, R., 2013, Smaller is better: first experiences using the iGrav superconducting gravimeter in a field enclosure. 17th International Symposium on Earth Tides, Apr. 15–19, Warsaw, Poland.
Creutzfeldt, B., J. Kennedy, and P. A. Ferré., 2012, Water-storage change measured with high-precision gravimetry at a groundwater recharge facility in Tucson, USA (Invited): AGU Fall Meeting, Dec. 3–7, San Francisco, CA. Abstract NS44A-02
Kennedy, J., B. Creutzfeldt, and P.A. Ferré., 2012, Monitoring vadose zone infiltration with time-lapse gravity data at a municipal recharge and withdrawal facility (Invited): Geological Society of America annual meeting, Nov. 4–7, Charlotte, NC.
Kennedy, J., Creutzfeldt, B., Ferré, P.A., and Güntner, A., 2012. Gravity-measured water storage change and subsurface hydraulic properties at a managed recharge facility in Tucson, AZ (Invited): EAGE Near Surface Meeting, Sep. 3–5, Paris, France.
Kennedy, J., Murdoch, L., Long, A., and Koth, K., 2011, Measuring groundwater flow at the Sanford Laboratory with coupled surface/subsurface time-lapse gravity measurements (Invited): American Geophysical Union Fall Meeting, Dec. 5–9, San Francisco, CA. Abstract NH54A-01
Kennedy, J., Pool, D., Ferré, P.A., and Wilson, C., 2011, Using high-resolution gravity and pumping data to infer aquifer parameters: American Geophysical Union Fall Meeting, Dec. 5–9, San Francisco, CA. Abstract H43E-1273
Kennedy, J., 2009, Expanding the Usefulness of Existing Data-Collection Infrastructure with Wireless Sensor Networks: American Geophysical Union Fall Meeting, Dec. 14–18, San Francisco, CA. Abstract IN23C-1073
Science and Products
Quantity and sources of base flow in the San Pedro River near Tombstone, Arizona
Hydrogeologic framework of the middle San Pedro watershed, southeastern Arizona
Possible tradeoffs from urbanization on groundwater recharge and water quality
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Quantity and sources of base flow in the San Pedro River near Tombstone, Arizona
Hydrogeologic framework of the middle San Pedro watershed, southeastern Arizona
Possible tradeoffs from urbanization on groundwater recharge and water quality
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government