In-Person EEMS Training Edmonds, WA · Sept 21–23, 2026 Register →
Try EEMS Free

Demo Mode

The easiest way to review existing models and learn about hydrodynamic, sediment transport, toxics and water quality modeling is to use EEMS in demo mode for free.

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Evaluate

Great way for users to evaluate EEMS before purchase.

  • Load, edit, and run models provided by DSI.
  • New sub-models cannot be activated.
  • View and edit Grid+ grids.
  • Save in Grid+ if less than 300 cells.

Educate

Ideal for students learning hydrodynamic modeling.

  • Build a model from scratch (up to 300 cells).
  • Dye, salinity, and particle tracking (10 drifters) modules are available.
  • View and edit Grid+ grids.
  • Save in Grid+ if less than 300 cells.

Review

Ideal for anyone needing to review existing EFDC models and grids.

  • View ANY large EFDC model or grid.
  • Saving edits & running the model are disabled.
  • View and edit Grid+ grids.
  • Save in Grid+ if less than 300 cells.

The free demonstration mode of EEMS is being provided as a service to educators, students, and regulators.

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