Modeling Water Flow and Contaminant Transport in Soils and Groundwater Using the HYDRUS Computer Software Packages

June 25-27, 2018


Click here to register using our secure CASHNET site


Soil and groundwater pollution is an ever-increasing, worldwide problem. Tens of billions of dollars are spent each year in the United States and elsewhere to remediate groundwater pollution, and to limit or prevent future contamination of the subsurface. Most subsurface pollution problems stem from activities involving the unsaturated (vadose) zone between the soil surface and the groundwater table. The unsaturated zone hence provides the best opportunities to limit or prevent groundwater pollution. Once contaminants enter groundwater, pollution is essentially irreversible, or can be remediated only with extreme costs.

Numerical modeling is becoming an increasingly important tool for analyzing complex problems involving water flow and contaminant transport in the unsaturated zone. This course is designed to familiarize participants with the principles and mathematical analysis of variably-saturated flow and transport processes, and the application of state-of-the-art numerical codes to site-specific subsurface flow and transport problems.

Check-in begins at 7:30 AM on Monday, June 25 and the class begins at 8:00 AM. Course sessions are from 8:00 AM to 5:00 PM.



The course begins with a detailed conceptual and mathematical description of water flow and solute transport processes in the vadose zone, followed by an brief overview of the use of finite element techniques for solving the governing flow and transport equations. Special attention is given to the highly nonlinear nature of the governing flow equation. Alternative methods for describing and modeling the hydraulic functions of unsaturated porous media are also described.

"Hands-on" computer sessions will provide participants an opportunity to become familiar with the Windows-based HYDRUS-1D and HYDRUS (2D/3D) software packages. Emphasis will be on the preparation of input data for a variety of applications, including flow and transport in a vadose zone, variably-saturated flow and transport during irrigation, flow and transport to a tile drain, and two-dimensional leachate migration from a landfill through the unsaturated zone into groundwater. Calibration will be discussed and demonstrated by means of a one-dimensional inverse problem.



The course introduces a new generation of Windows-based numerical models for simulating water, heat and/or contaminant transport in variably-saturated porous media. These include the HYDRUS-1D and HYDRUS (2D/3D) codes for one-,  two- and three-dimensional simulations, and the Rosetta code for estimating the soil hydraulic properties (and their uncertainty) from soil texture and related data. HYDRUS-1D and HYDRUS (2D/3D) are supported by interactive graphics-based interfaces for data-preprocessing, generation of unstructured as well as structured finite element grid systems, and graphic presentation of the simulation results. Except for HYDRUS (2D/3D), all software packages are in the public domain.



Course handouts include lecture notes prepared by the instructor.



Proceeding every short course, each attendee has the opportunity to submit a Short Course Evalution.  Here are a few of the responses that the IGWMC has received from previous HYDRUS courses:

  • "The presenter - obviously knows software intimately and can back-up everything he says with fundamental concepts." -2012 attendee
  • "Jirka knows the code so well, it is invaluable having him as instructor!" -2012 attendee
  • "Working thourh a variety of examples was the most significant." -2012 attendee
  • "To me this is an excellent course, but I have to practice more and more." -2012 attendee
  • "Lots of time for examples" -2012 attendee
  • "It has a lot of applications along with several databases for input data. The web page provides a lot of resources to use the program. It is developing continously and integrating more tools to simulate more situations." -2012 attendee
  • "The developer is the presenter; therefore, he knows everything about the code!" -2011 attendee
  • "Knowledgeable instructor the provided exposure to numerous models."-2011 attendee
  • "I obtained certain understanding about how the software is organized and some theoretical background."-2011 attendee
  • "The most significant strengths of the short course were computer exercises/learning to navigate HYDRUS program and the large range of topics covered."-2011 attendee



Dr. Jirka Simunek is a Professor of Hydrology with the Department of Environmental Sciences of the University of California. He received an M.S. in Civil Engineering from the Czech Technical University, Prague, Czech Republic, and a Ph.D. in Water Management from the Czech Academy of Sciences, Prague. His expertise is in numerical modeling of subsurface water flow and solute transport processes, equilibrium and nonequilibrium chemical transport, multicomponent major ion chemistry, field-scale spatial variability, and inverse procedures for estimating the hydraulic properties of unsaturated porous media.

He has authored and coauthored over 200 peer-reviewed publications, and over 20 book chapters, and two books (including the textbook "Soil Physics with HYDRUS: Modeling and Applications"). His numerical HYDRUS models are used by virtually all scientists, students, and practitioners modeling water flow, chemical movement, and heat transport through variably saturated soils. Dr. Simunek is a recipient of the Soil Science Society of America's Don and Betty Kirkham Soil Physics Award, Fellow of the Soil Science Society of America and American Geophysical Union, and the past chair of the Soil Physics (S1) of SSSA. He is a co-editor of Vadose Zone Journal, and an associate editor of Journal of Hydrology, and Journal of Hydrology and Hydromechanics. In the past he also served as an associate editor of Water Resources Research.



The course will be held in the Berthoud Hall, RM201. The Berthoud Hall (1516 Illinois St. Golden CO 80401) is located on the corner of 16th and Illinois Streets, and #5 on the campus map below.

All Visitor parking areas will have a pay and display parking meter. When arriving on campus for the first time, look for a parking meter, find a space in that location, pay the meter and display the receipt on your dash. You will find brochures at each of our parking meters that can also help guide you around the campus.



The fee for the short course is $1195 by 5:00PM Mountain Daylight Time, June 11, 2018 ($1395 after June 11). Students receive a 30% discount on the short course fee ($836.50 before 6/11/18, $976.50 after). You will be invoiced for the tuition balance. The fee covers instruction, course notes, refreshments, and continuing education units. Lodging and meals are not covered. Payment in full must be received prior to the beginning of the course. The registration fee may be paid by check, VISA, MasterCard, AMEX, Discover, or by purchase order (US Only). A maximum of 20 applicants will be able to attend the course due to space limitations. Spaces will be filled at a first come, first serve basis, so be sure to sign up as early as possible.

If cancellation is made before June 11, 2018, the entire tuition will be refunded except for a $100 deposit. Cancellations made after that date will forfeit a $150 processing fee in addition to the $100 deposit. In case of cancellation, the right to course material is forfeited. Substitutions are permitted at any time prior to the start of the course. Please be advised that if the program is cancelled due to insufficient enrollment, Colorado School of Mines will return all course fees, but will not be liable for any other expenses incurred by the prospective attendees.

To register click here.



The Colorado School of Mines is located in Golden, which is 20 minutes west of Denver, 1 hour west of the Denver International Airport and can be reached by taxi, airport shuttle or rental car. It is strongly recommended that for events held on the CSM campus, attendees select accommodations within .5 miles of the campus if a rental car or personal transportation will not be available, as taxi service and public transportation from other areas may involve significant delays and costs. Lodging is available in Golden, within walking distance of the campus.

Denver Shuttle Service from Denver Airport

To get to SuperShuttle when you land, take the train from the Concourse to the Terminal. Pick up your luggage and proceed to the SuperShuttle counter located on Level 5/Baggage Claim, adjacent to the water feature in the center of the terminal. Counter staff will issue tickets and give directions to the van loading areas. For information, call 1-800-BLUEVAN. Their ticket counters are closed between 12am and 6am. If you arrive between these hours, please use the courtesy phone located at the ticket counter to notify dispatch of your arrival. Please contact a shuttle provider directly for more information on fees and destinations served. Shuttles pick-up and drop-off from Jeppesen Terminal Level 5, Island 3, outside doors 505-507 (east side) and 510-512 (west side).

Super Shuttle International Denver

Phone: (800) 525-3177

Web site:

Rental Cars

All Rental car companies at DIA are located on airport property but are away from the main terminal. Each rental company provides a courtesy shuttle to and from Jeppesen Terminal from their locations. All courtesy shuttles pick-up and drop-off from Jeppesen Terminal Level 5, Island 4, outside doors 505-513 (east side) and 504-512 (west side). If you are arriving in Denver, please follow the overhead signage for the appropriate pick-up location, or check-in at your company's counter in the center of the Terminal.
For more information, please visit at


Taxis are readily available and service within the eight counties that make up the Denver metro area. Some companies may also provide service to other destinations within the state of Colorado. Check with your cab company of choice (or directly with your driver at the airport) for more information on fares and destinations served. Fares to Golden area are based on the taxi’s meter and it costs about $70-85 plus the $3.75 airport access fee. Taxis pick-up and drop-off from Jeppesen Terminal Level 5, Island 1, outside doors 507-511 (east side) and 506-510 (west side).



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