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Hydrology

Scott Waichler

Scott Waichler

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352

Biography

Scott Waichler has extensive experience in processing, analyzing, and visualizing hydrologic data. He is a scientist/programmer/task leader who works in a variety of hydrology subfields including groundwater flow and transport, surface water flow, watershed hydrology, meteorology, and statistics. He combines scientific subject matter knowledge with skill in data processing, visualization, statistical methods, and publishing experience to successfully serve projects. Scott is an expert in the R scripting language and also works with Python and VisIt. He has simulated hydrologic systems with the models STOMP, DHSVM, MASS1, and others.

Research Interests

  • Data analytics and visualization
  • Modeling of groundwater, surface water, watersheds
  • Statistics in time and space, including timeseries, geostatistics, and extreme events
  • Machine learning

Education and Credentials

  • Ph.D., Bioresource Engineering, Oregon State University, 2000. Statistics Minor
  • M.S., Hydrology/Hydrogeology, University of Nevada, 1991
  • B.S., Geology, Stanford University, 1984

PNNL Publications

2018

  • Johnson C.M., J.D. Lowrey, M.L. Rockhold, and S.R. Waichler. 2018. "The impact of geologic parameters and water infiltration on the imprinting of 133Xe." Journal of Radioanalytical and Nuclear Chemistry 318, no. 1:131-137. PNNL-SA-133423. doi:10.1007/s10967-018-6069-9
  • Rockhold M.L., J.L. Downs, S.R. Waichler, C. Yonkofski, V.L. Freedman, and M.J. Truex. 2018. Draft Technical Impracticability Evaluation for Iodine-129 in Groundwater at Hanford: 200-UP-1 Operable Unit. PNNL-28057. Richland, WA: Pacific Northwest National Laboratory.

2017

  • Waichler S.R., J.A. Serkowski, W.A. Perkins, and M.C. Richmond. 2017. Simulation of Columbia River Floods in the Hanford Reach. PNNL-26204. Richland, WA: Pacific Northwest National Laboratory.

2015

  • Long P.E., K.H. Williams, J.A. Davis, P.M. Fox, M.J. Wilkins, S.B. Yabusaki, and Y. Fang, et al. 2015. "Bicarbonate Impact on U(VI) Bioreduction in a Shallow Alluvial Aquifer." Geochimica et Cosmochimica Acta 150. PNNL-SA-106900. doi:10.1016/j.gca.2014.11.013

2014

  • Freedman V.L., X. Chen, S.A. Finsterle, M.D. Freshley, I. Gorton, L.J. Gosink, and E. Keating, et al. 2014. "A high-performance workflow system for subsurface simulation." Environmental Modelling & Software 55. PNNL-SA-92680. doi:10.1016/j.envsoft.2014.01.030

2013

  • Freedman V.L., R.D. Mackley, S.R. Waichler, and J.A. Horner. 2013. "Evaluation of Analytical and Numerical Techniques for Defining the Radius of Influence for an Open-Loop Ground Source Heat Pump System." Journal of Hydrologic Engineering 18, no. 9:1170-1179. PNNL-SA-84739. doi:10.1061/(ASCE)HE.1943-5584.0000720
  • Rockhold M.L., D.H. Bacon, V.L. Freedman, K.R. Parker, S.R. Waichler, and M.D. Williams. 2013. System-Scale Model of Aquifer, Vadose Zone, and River Interactions for the Hanford 300 Area - Application to Uranium Reactive Transport. PNNL-22886;RPT-DVZ-AFRI-019. Richland, WA: Pacific Northwest National Laboratory.

2012

  • Freedman V.L., S.R. Waichler, R.D. Mackley, and J.A. Horner. 2012. "Assessing the Thermal Environmental Impacts of an Groundwater Heat Pump in Southeastern Washington State." Geothermics 42. PNNL-SA-76515. doi:10.1016/j.geothermics.2011.10.004

2011

  • Yabusaki S.B., Y. Fang, K.H. Williams, C.J. Murray, A.L. Ward, R. Dayvault, and S.R. Waichler, et al. 2011. "Variably Saturated Flow and Multicomponent Biogeochemical Reactive Transport Modeling of a Uranium Bioremediation Field Experiment." Journal of Contaminant Hydrology 126, no. 3-4:271-290. PNNL-SA-76394. doi:10.1016/j.jconhyd.2011.09.002

2010

  • Freedman V.L., R.D. Mackley, S.R. Waichler, J.A. Horner, T.W. Moon, D.R. Newcomer, and D.J. DeSmet, et al. 2010. Hydrogeologic Evaluation of a Ground-Source Cooling System at the BSF/CSF on the Battelle Campus: Final Report. PNNL-18463 Final. Richland, WA: Pacific Northwest National Laboratory.
  • Skaggs R., S.A. Breithaupt, S.R. Waichler, T. Kim, and D.L. Ward. 2010. Analysis of Flood Hazards for the Materials and Fuels Complex at the Idaho National Laboratory Site. PNNL-20029. Richland, WA: Pacific Northwest National Laboratory.

2009

  • Rockhold M.L., D.L. Saunders, C.E. Strickland, S.R. Waichler, and R.E. Clayton. 2009. Soil Water Balance and Recharge Monitoring at the Hanford Site - FY09 Status Report. PNNL-18807. Richland, WA: Pacific Northwest National Laboratory.

2008

  • Dresel P.E., K.B. Olsen, J.C. Hayes, J.I. McIntyre, S.R. Waichler, and B.M. Kennedy. 2008. "Environmental Applications of Stable Xenon and Radioxenon Monitoring." Journal of Radioanalytical and Nuclear Chemistry 276, no. 3:763-769. PNNL-SA-56695.
  • Yabusaki S.B., Y. Fang, and S.R. Waichler. 2008. "Building Conceptual Models of Field-Scale Uranium Reactive Transport in a Dynamic Vadose Zone-Aquifer-River System." Water Resources Research 44. PNNL-SA-57625. doi:10.1029/2007WR006617

2006

  • Dresel P.E., K.B. Olsen, J.C. Hayes, J.I. McIntyre, and S.R. Waichler. 2006. "Sampling and Analysis of Rare Gas Isotopes for In Situ Delineation of Buried Transuranic and Tritium Waste." In Waste Management '06: Global Accomplishments in Environmental and Radioactive Waste Management: Education and Opportunity for the Next Generation of Waste Management Professionals. Tucson, Arizona:Arizona Board of Regents. PNNL-SA-47718.

2005

  • Freedman V.L., S.R. Waichler, C.R. Cole, V.R. Vermeul, and M.P. Bergeron. 2005. "Identifying the Potential Loss of Monitoring Wells Using an Uncertainty Analysis." Ground Water 43, no. 6:916-925. PNNL-SA-41218. doi:10.1111/j.1745-6584.2005.00047.x
  • Freedman V.L., Z.F. Zhang, S.R. Waichler, and S.K. Wurstner. 2005. 2005 Closure Assessments for WMA-C Tank Farms: Numerical Simulations. PNNL-15377. Richland, WA: Pacific Northwest National Laboratory.
  • Waichler S.R. 2005. Potential Groundwater Recharge from the Infiltration of Surface Runoff in Cold and Dry Creeks, Phase 2. PNNL-15533. Richland, WA: Pacific Northwest National Laboratory.
  • Waichler S.R. 2005. Preparing PNNL Reports with LaTeX. PNNL-15197. Richland, WA: Pacific Northwest National Laboratory.
  • Waichler S.R., and S.B. Yabusaki. 2005. Flow and Transport in the Hanford 300 Area Vadose Zone-Aquifer-River System. PNNL-15125. Richland, WA: Pacific Northwest National Laboratory.
  • Waichler S.R., B.C. Wemple, and M.S. Wigmosta. 2005. "Simulation of Water Balance and Forest Treatment Effects at the H.J. Andrews Experimental Forest." Hydrological Processes 19, no. 16:3177-3199. PNWD-SA-5745.
  • Waichler S.R., W.A. Perkins, and M.C. Richmond. 2005. Hydrodynamic Simulation of the Columbia River, Hanford Reach, 1940--2004. PNNL-15226. Richland, WA: Pacific Northwest National Laboratory.

2004

  • Dresel P., and S.R. Waichler. 2004. Evaluation of Xenon Gas Detection as a Means for Identifying Buried Transuranic Waste at the Radioactive Waste Management Complex, Idaho National Environmental and Engineering Laboratory. PNNL-14617. Richland, WA: Pacific Northwest National Laboratory.
  • Waichler S.R., and M.S. Wigmosta. 2004. "Application of Hydrograph Shape and Channel Infiltration Models to an Arid Watershed." Journal of Hydrologic Engineering 9, no. 5:433-439. PNNL-SA-37392.
  • Waichler S.R., M.S. Wigmosta, and A.M. Coleman. 2004. Natural Recharge to the Unconfined Aquifer System on the Hanford Site from the Greater Cold Creek Watershed: Progress Report 2004. PNNL-14717. Richland, WA: Pacific Northwest National Laboratory.
  • Zhang Z.F., V.L. Freedman, and S.R. Waichler. 2004. 2004 Initial Assessments for the T and TX TY Tank Farm Field Investigation Report (FIR): Numerical Simulations. PNNL-14838. Richland, WA: Pacific Northwest National Laboratory.
  • Zhang Z.F., V.L. Freedman, S.R. Waichler, and M.D. White. 2004. 2004 Initial Assessments of Closure for the S-SX Tank Farm: Numerical Simulations. PNNL-14604. Richland, WA: Pacific Northwest National Laboratory.

2003

  • Vermeul V.R., M.P. Bergeron, C.R. Cole, C.J. Murray, W.E. Nichols, T.D. Scheibe, and P.D. Thorne, et al. 2003. Transient Inverse Calibration of the Site-Wide Groundwater Flow Model (ACM-2): FY03 Progress Report. PNNL-14398. Richland, WA: Pacific Northwest National Laboratory.
  • Waichler S.R., and M.S. Wigmosta. 2003. "Development of Hourly Meteorological Values From Daily Data and Significance to Hydrological Modeling at H.J. Andrews Experimental Forest." Journal of Hydrometeorology 4, no. 2:251-263. PNWD-SA-5703.

Hydrology

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