California Water and Environmental
Modeling Forum

Workshop Fee: $100 for CWEMF members, $200 for non-members, and $40 for students.
Registration through PayPal™ (button below) is requested.
Refreshments included, lunch not included.

Overview
Integrated Water Flow Model (IWFM) version 4.0 is a water resources management and planning tool that simulates land surface and root zone flow processes, groundwater, stream flows, and surface water-groundwater interactions. Tile drains, subsidence, lakes and lake-groundwater interactions can also be simulated. IWFM models groundwater flow as a quasi three-dimensional system and solves the governing flow equation using the Galerkin finite element method. A unique feature of IWFM is the land use based approach of calculating water demands. Agricultural and urban water demands can be pre-specified, or calculated internally based on user-specified land use distribution, soil properties, climatic conditions and farm water management practices.

This is a companion workshop to the IWFM Demand Calculator (IDC) Version 4.0 workshop which is offered separately, though the land-surface and root zone component of IWFM will not be covered in as much detail. The workshop participants will learn the basic concepts and mathematical methods used in IWFM, and will have hands -on exercises that will teach them how to build models from scratch. The software tools that are developed to aid IWFM users in pre-processing and post-processing model data and simulation results will also be covered.

Workshop participants will need to bring a laptop computer with several programs installed, including MS Excel 2007 or 2010, and a powerful text editor such as TextPad.  Before the workshop, participants will need to download workshop materials (presentations, hands-on examples and guidelines for these examples) and install the IWFM pre-processor and post-processor tools.

Major topics will include:

• Overview of IWFM v4.0
• Simulation of groundwater flow
• Stream flows and stream-groundwater interactions
• Lakes and lake-groundwater interactions
• Tile drains, subsidence, pumping and recharge of groundwater
• Land-use and soil moisture routing; computation of agricultural and urban water demands
  (these topics will be covered only briefly here; IWFM Demand Calculator (IDC) Version 4.0 workshop  covers these topics in more detail)
• Stream diversions and pumping as water supply
• Automated adjustment of diversions and pumping to meet water demand
• Demonstration of pre-processing and post-processor tools

How to Register

1. Send an email to cwemf@cwemf.org to reserve your spot.
2. Select one of the registration options in the box, provide the participant’s name
   and contact information in the fields below and click the “Buy Now”
   button to be redirected to the PayPal™ web site for credit card payment.

Participant’s name and organization or affiliation:


 

Participant’s email address and telephone number:

If PayPal™ doesn’t work for you, you may send in your check to:
CWEMF, P.O. Box 22529  Sacramento, CA 95822.
Or you can bring a check with you on January 7 made payable to “CWEMF”.
For more information, please email cwemf@cwemf.org

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