Troy Gilmore

Troy Gilmore

  • Contact Information
  • Publications
  • Background
  • Interests
  • Grants
  • Advising
  • Courses Taught

Contact Information

TitleGroundwater Hydrologist
Faculty RankAssociate Professor
Address603 South Hardin Hall
3310 Holdrege Street
Lincoln NE
68583–0996
Phone
  • office: 402-470-1741
  • fax: 402-472-4915
E-mailgilmore@unl.edu
VitaeDownload file

 

Contact Preference

e-mail

Office Hours

stop by any time (603 Hardin Hall)

Selected Publications

Birgand, Francois, Chapman, K., Hazra, A., Gilmore, T., Etheridge, R., Staicu, A.-M. (2022). Field performance of the GaugeCam image-based water level measurement system. PLoS Water, 1(7), e0000032.Online
Chapman, K. W., Gilmore, T., Chapman, C. D., Birgand, Francois, Mittelstet, A., Harner, M., Mehrubeoglu, M., Stranzl, Jr, J. E. (2022). Open-Source Software for Water-Level Measurement in Images With a Calibration Target. Water Resources Research, 58(8), e2022WR033203.Online
Cherry, M. L., Gilmore, T., Messer, T., Li, Y., Westrop, J. (2022). A Pivotal New Approach to Groundwater Quality Assessment. ACS ES\&T Water.Online
CUAHSI Board of Directors \& Officers (2022). COVID-19 Impacts Highlight the Need for Holistic Evaluation of Research in the Hydrologic Sciences. Water Resources Research, 58(2), e2021WR030930Online
Humphrey, C. E., Solomon, D. K., Genereux, D. P., Gilmore, T., Mittelstet, A., Zlotnik, V., Zeyrek, C., Jensen, C. R., MacNamara, M. R. (2022). Using Automated Seepage Meters to Quantify the Spatial Variability and Net Flux of Groundwater to a Stream. Water Resources Research, 58(6), e2021WR030711Online
Jensen, C. R., Genereux, D. P., Gilmore, T., Solomon, D. K., Mittelstet, A., Humphrey, C. E., MacNamara, M. R., Zeyrek, C., Zlotnik, V. (2022). Estimating groundwater mean transit time from SF6 in stream water: field example and planning metrics for a reach mass-balance approach. Hydrogeology Journal, 30(2), 479--494.
Pekarek, K., McCullough, M., Gilmore, T. (2022). Module: Nebraska’s Nitrate Challenge. University of Nebraska Extension. https://nebraskawaves.org/managing-groundwater-resources-the-nebraska-way/
Pekarek, K., McCullough, M., Gilmore, T. (2022). Module: Nitrate and Human Health. University of Nebraska Extension. https://nebraskawaves.org/managing-groundwater-resources-the-nebraska-way/
Pekarek, K., McCullough, M., Gilmore, T. (2022). Nitrate in Nebraska: The Basics. University of Nebraska Extension. https://nebraskawaves.org/managing-groundwater-resources-the-nebraska-way/
Quaggio, C. S., Gastmans, D., de Souza Martins, Veridiana Teixeira, Gilmore, T. (2022). Combined use of statistical Bayesian model and strontium isotopes deciphering the high complexity groundwater flow in the Guarani Aquifer System (GAS). Applied Geochemistry, 146, 105473.
Zeyrek, C., Mittelstet, A., Gilmore, T., Zlotnik, V., Solomon, D. K., Genereux, D. P., Humphrey, E., Shrestha, N. (2022). Modeling groundwater transit time distributions and means across a Nebraska watershed: effects of heterogeneity in the aquifer, riverbed, and recharge parameters. Journal of Hydrology, 128891.
Eger, G.Z., Silva, J. G., Marques, E.A.G, Leão, B.R.C., da Rocha, D.G.T.B., Gilmore, T. (2021). Recharge assessment in the context of expanding agricultural activity: Urucuia Aquifer System, western State of Bahia, Brazil. Journal of South American Earth Sciences. Volume 112, Part 1, 103601.Online
Gilmore, T., Cherry, M., Gastmans, D., Solomon, D.K., Humphrey, E.C. (2021). The 3H/3He Groundwater Age-Dating Method And Applications. Derbyana. Vol. 42. DOI: https://doi.org/10.14295/derb.v42.740Online
Petre, M.A., Genereux, D.P., Koropeckyi-Cox, L., Knappe, D.R.U., Duboscq, S., Gilmore, T.E., Hopkins, Z.R. 2021. Per- and Polyfluoroalkyl Substance (PFAS) Transport from Groundwater to Streams Near a PFAS Manufacturing Facility in North Caroline, USA. Environmental Science & Technology. 55:5848-5856.Online
Richards, G., Gilmore, T., Mittelstet, A.R., Messer, T.L., Snow, D.D. (2021). Baseflow nitrate dynamics within nested watersheds of an agricultural stream in Nebraska, USA. Agriculture, Ecosystems and Environment 308 (2021) 107223. doi:10.1016/j.agee.2020.107223Online
Santarosa, L.V., Gastmans, D., Gilmore, T.E., Boll, J., Betancur, S.B., Gonçalves, V.F.M. (2021). Baseflow and water resilience variability in two water management units in southeastern Brazil. International Journal of River Basin Management. https://doi.org/10.1080/15715124.2021.2002346Online
Shrestha, N., Mittelstet, A.R., Gilmore, T.E., Zlotnik, V., Neale, C. (2021). Effects of drought on groundwater-fed lake areas in the Nebraska Sand Hills. Journal of Hydrology: Regional Studies. 36, 100877. https://doi.org/10.1016/j.ejrh.2021.100877Online
Shrestha, N., Mittelstet, A.R., Young, A., Gilmore, T.E., Gosselin, D., Zeyrek, C. (2021). Groundwater level assessment and prediction in the Nebraska Sand Hills using LIDAR-derived lake water level. Journal of Hydrology. Vol. 600, 126582.Online
Wells, M., Gilmore, T.E., Nelson, N., Mittelstet, A.R., Bohlke, J.K. (2021). Determination of vadose zone and saturated zone nitrate lag times using long-term groundwater monitoring data and statistical machine learning. Hydrol. Earth Syst. Sci., 25, 811–829, 2021 https://doi.org/10.5194/hess-25-811-2021 Online
Abimbola, O. P., Mittelstet, A., Gilmore, T., Korus, J. (2020). Influence of watershed characteristics on streambed hydraulic conductivity across multiple stream orders. Scientific Reports, 10(1), 3696. https://doi.org/10.1038/s41598-020-60658-3Online
Abimbola, O., Mittelstet, A., Gilmore, T. (2020). Geostatistical features of streambed vertical hydraulic conductivities in Frenchman Creek Watershed in Western Nebraska. HYDROLOGICAL PROCESSES, 34(16), 3481-3491.Online
Cherry, M., Gilmore, T., Mittelstet, A., Gastmans, D., Santos, V., Gates, J. (2020). Recharge seasonality based on stable isotopes: Nongrowing season bias altered by irrigation in Nebraska. HYDROLOGICAL PROCESSES, 34(7), 1575-1586. Online
Korus, J., Fraundorfer, W. P., Gilmore, T., Karnik, K. (2020). Transient streambed hydraulic conductivity in channel and bar environments, Loup River, Nebraska. HYDROLOGICAL PROCESSES, 34(14), 3061-3077. Online
Solomon, D. K., Humphrey, E., Gilmore, T., Genereux, D. P., Zlotnik, V. (2020). An Automated Seepage Meter for Streams and Lakes. WATER RESOURCES RESEARCH, 56(4).Online
Cherry, M., Gilmore, T.E., Mittelstet, A.R., Gastmans, D., Gates, J. 2019. Isotopic Composition of Groundwater and Precipitation in Nebraska, USA. XX Congresso Brasileiro de Aguas Subterraneas. pg. 1-4.Online
Gilmore, T., Johnson, M., Korus, J., Mittelstet, A., Briggs, M. A., Zlotnik, V., Corcoran, S. 2019. Streambed Flux Measurement Informed by Distributed Temperature Sensing Leads to a Significantly Different Characterization of Groundwater Discharge. Water.Online
Gilmore, T., Korus, J., Pennisi, L., Martin, D. L., Pekarek, K. 2019. Needs Assessment: Watershed Science for Water Resources Directors. Journal of Extension. 57(4).Online
Gilmore, T., Zlotnik, V., Johnson, M. 2019. Recognition of Regional Water Table Patterns for Estimating Recharge Rates in Shallow Aquifers. Groundwater. 57(3):443--454.Online
Kirchheim, R. E., Gastmans, D., Chang, H. K., Gilmore, T. 2019. The use of isotopes in evolving groundwater circulation models of regional continental aquifers: The case of the Guarani Aquifer System. Hydrological Processes, 33(17):2266-2278.Online
Mittelstet, A., Gilmore, T., Messer, T., Rudnick, D., Heatherly, T. 2019. Evaluation of selected watershed characteristics to identify best management practices to reduce Nebraskan nitrate loads from Nebraska to the Mississippi/Atchafalaya River basin. AgOnline
Mittelstet, A., Gilmore, T., Messer, T., Rudnick, D., Heatherly, T. 2019. Evaluation of Selected Watershed Characteristics to Identify Best Management Practices to Reduce Nebraskan Nitrate Loads from Nebraska to the Mississippi/Atchafalaya River Basin. AgOnline
Pennisi, L., Gilmore, T., Gilmore, T. E., Korus, J., Pennisi, L., Martin, D., Pekarek, K. 2019. Needs Assessment: Watershed Science for Water-Resources Directors. Journal of Extension. 57(4).Online
Gilmore, T., Zlotnik, V., Johnson, M. (2018). Recognition of regional water table patterns for estimating groundwater recharge rates. Groundwater.
Wells, M. J., Gilmore, T., Mittelstet, A., Snow, D., Sibray, S. (2018). Assessing Decadal Trends of a Nitrate-Contaminated Shallow Aquifer in Western Nebraska Using Groundwater Isotopes, Age-Dating, and Monitoring. WATER, 10(8).
Korus, J.T., Gilmore, T.E., Waszgis, M.M., Mittelstet, A.R. 2017. Unit-bar migration and bar-trough deposition: impacts on hydraulic conductivity and grain size heterogeneity in a sandy streambed. Hydrogeology Journal, V26 (2), 553-564 p.Online
Gilmore, T. E., Genereux, D. P., Solomon, D. K., Solder, J. E., Kimball, B. A., Mitasova, H., Birgand., F. 2016. Quantifying the fate of agricultural nitrogen in an unconfined aquifer: stream-based observations at three different scales. Water Resources ROnline
Gilmore, T., Genereux, D. P., Solomon, D. K., Farrell, K. M., Mitasova, H. 2016. Aquifer nitrate legacy and dynamics observed through groundwater sampling in streambeds and well nests. Water Resources Research.
Gilmore, T., Genereux, D. P., Solomon, D. K., Solder, J. E. 2016. Groundwater transit time distribution and mean from streambed sampling in an agricultural coastal plain watershed, North Carolina, USA. Water Resources Research. 52: 2025–2044.Online
Gilmore, T.E., D.P. Genereux, D.K. Solomon, K.M. Farrell, H. Mitasova. 2016. Aquifer nitrate budget and future fluxes estimated through groundwater sampling in streambeds and well nests. Water Resources Research. 52: 9046-9065.Online
Heilweil, V. M., Solomon D.K., Darrah, T. H., Gilmore T.E., and Genereux, D.P. 2016. Gas-Tracer Experiment for Evaluating the Fate of Methane in a Coastal Plain Stream: Degassing versus in-Stream Oxidation, Environ. Sci. Technol., 50(19), 10504-10511,
Heilweil, V. M., Solomon, D. K., Darrah, T. H., Gilmore, T., Genereux, D. P. 2016. A gas-tracer injection for evaluating the fate of stream methane: Atmospheric loss versus oxidation. Environmental Science and Technology.50: 10504-10511.Online
Solder, J.E., T.E Gilmore, D. Genereux, D.K. Solomon. 2015. Development and testing of a tube seepage meter for in-situ measurement of specific discharge and hydraulic conductivity in streambeds. Groundwater. gwat.12388.
Solomon, D.K., T.E. Gilmore, J.E Solder, B.A. Kimball, D.P. Genereux. 2015. Evaluating an unconfined aquifer by analysis of age-dating tracers in stream water. Water Resources Research, 51, 8883-8899Online
Gilmore, T.E., F. Birgand and K. Chapman. 2013. Source and magnitude of error in an inexpensive image-based water level measurement system. Journal of Hydrology 496: 178-186.Online

Background

Education

DegreeMajorInstitutionYear Awarded
Doctorate of PhilosophyBiological and Agricultural EngineeringNorth Carolina State University2015
Bachelor of ScienceCivil EngineeringNorth Carolina State University2010

 

Affiliations

 

Awards

TitleAwarded byYear Awarded
National Winner - Communication: Educational Video RecordingNational Association of County Agricultural Agents2022
Provost's Graduate FellowshipNorth Carolina State University2011
Fundamentals of Engineering ExamNorth Carolina Board of Examiners for Engineers and Surveyors2010
Civil Engineering Dept Citizenship AwardNorth Carolina State University2010
College of Engineering Dean's Graduate FellowshipNorth Carolina State University2010

 

Professional Organizations

NamePosition
American Geophysical UnionMember (2012-current)
American Society of Biological and Agricultural EngineersMember (2010-current)

 

Websites

 

SNR Program Areas

  • Environmental Science

Areas of Interest/Expertise

  • Isotope/Tracer Hydrology
  • Agricultural nutrient and water fluxes
  • Groundwater-surface water interactions
  • Groundwater and surface water quantity and quality
  • Methods for monitoring groundwater and surface water
  • Isotopes
  • Water Quality

Grants

Currently this page only displays grants that were awarded on 1/1/ 2009 to the present. If a grant was awarded prior to 1/1/ 2009 and is still active, it will not be displayed on this page.

Grant TitleAdvancing Image-Based Hydrology for USGS Stream Gage Applications
Starting Date03/08/2023

Investigator(s)

Ending Date02/20/2025
Funding Level$271,000.00
Funding AgencyU.S. Geological Survey

 

Grant TitleExtending USDA-requested Passive Sampling for Stream Water Age in Bazile Creek Watershed
Starting Date11/21/2022

Investigator(s)

Ending Date03/31/2024
Funding Level$14,000.00
Funding AgencyARD Strategic Funding (Internal)

 

Grant TitleIncreasing the applicability of image-based water level measurement techniques
Starting Date01/01/2022

Investigator(s)

Ending Date12/20/2022
Funding Level$10,000.00
Funding AgencyJohn and Nettie David Memorial Trust Fund

 

Grant TitleImage-Based Streamflow and Water Quality Modeling
Starting Date10/01/2021

Investigator(s)

Ending Date09/30/2022
Funding Level$20,000.00
Funding AgencyU.S. Geological Survey via Nebraska Water Center

 

Grant TitleModeling to Reduce Highway Flooding
Starting Date07/01/2021

Investigator(s)

Ending Date05/31/2023
Funding Level$143,166.00
Funding AgencyNebraska Department of Transportation

 

Grant TitleDelivery of Watershed Science Education to Decision Makers A Multi-Agency Collaboration
Starting Date04/08/2021

Investigator(s)

Ending Date06/30/2022
Funding Level$78,601.00
Funding AgencyNebraska Environmental Trust

 

Grant TitleSurvey of Groundwater Transit Times and Nitrate Delivery to Bazile Creek (Additional Funding)
Starting Date04/08/2020

Investigator(s)

Ending Date05/31/2021
Funding Level$15,000.00
Funding AgencyNebraska Department of Environment and Energy

 

Grant TitleLTAR Research: Testing a Novel Groundwater Age- dating Technique in the Bazile Creek watershed
Starting Date11/01/2019

Investigator(s)

Ending Date10/31/2022
Funding Level$33,648.00
Funding AgencyUSDA-LTAR via UNL-ARD

 

Grant TitleGroundwater Transit Time (Additional Funding)
Starting Date07/23/2019

Investigator(s)

Ending Date05/31/2021
Funding Level$97,532.00
Funding AgencyNational Science Foundation

 

Grant TitleDWFI Graduate Fellowship: Influence of recharge patterns on the sustenance of groundwater-fed streams
Starting Date07/01/2019

Investigator(s)

Ending Date06/30/2022
Funding Level$52,500.00
Funding AgencyDaugherty Water for Food Institute

 

Grant TitleWatershed Science Education Collaboration
Starting Date05/24/2019

Investigator(s)

Ending Date06/30/2022
Funding Level$225,204.00
Funding AgencyNebraska Environmental Trust

 

Grant TitlePFAST - Groundwater Age - North Carolina
Starting Date05/07/2019

Investigator(s)

Ending Date12/31/2019
Funding Level$16,765.00
Funding AgencyNorth Carolina State University

 

Grant TitleBazile Creek Nitrate Isotopes
Starting Date04/30/2019

Investigator(s)

Ending Date08/31/2019
Funding Level$2,081.00
Funding AgencyUpper Elkhorn NRD

 

Grant TitleUNO-NASA Space Grant: NASA Nebraska Space Grant Fellowship 2018-2019 Flynn
Starting Date08/01/2018

Investigator(s)

Ending Date02/28/2019
Funding Level$4,000.00
Funding AgencyNational Aeronautics and Space Administration - NE

 

Grant TitleSurvey of Groundwater Transit Times and Nitrate Delivery to Bazile Creek
Starting Date07/13/2018

Investigator(s)

Ending Date05/31/2020
Funding Level$15,000.00
Funding AgencyNebraska Department of Economic Quality

 

Grant TitleHydrologic Monitoring and Assessment of Upper Little Blue River Basin
Starting Date07/01/2018

Investigator(s)

Ending Date06/30/2021
Funding Level$145,924.00
Funding AgencyTri-Basin NRD

 

Grant TitleApplication of isotopic tracers to determine water residence times in multi-scale water management
Starting Date08/01/2017

Investigator(s)

Ending Date07/31/2019
Funding Level$19,983.00
Funding Agency2017 IANR SPRINT

 

Grant TitleMiddle Republican Hydrogeologic Framework and Groundwater Observation Network (Additional Funding)
Starting Date06/19/2017

Investigator(s)

Ending Date05/31/2020
Funding Level$70,500.00
Funding AgencyMiddle Republican NRD

 

Grant TitlePilot Watershed Curriculum
Starting Date12/10/2016

Investigator(s)

Ending Date12/10/2017
Funding Level$3,000.00
Funding Agency

 

Advising

Graduate Programs

Master of Applied Science

Master of Science in Natural Resource Sciences
including specializations in

  • Hydrological Sciences

Doctorate of Philosophy in Natural Resource Sciences
including specializations in

  • Hydrological Sciences

Courses Taught

Course NumberCourse TitleFall Even YearsFall Odd YearsSpring Even YearsSpring Odd YearsSummer SessionCross Listing
NRES 898Special Topics: Subsurface environmental tracer applications in agricultureXX