GAEA Technologies Ltd - Groundwater Vistas & MODFLOW: Budgets and Balances

Technologies Ltd.

Groundwater Vistas & MODFLOW

Budgets and Balances

Zone Budget Report
While GV does not support the USGS ZoneBudget program directly, we now offer a report of mass balance that closely matches what ZoneBudget produces. Zones for the report are defined using HydroStratigraphic units and the report documents inflows, outflows and exchange of water between zones just like ZoneBudget.
New Calibration Graph
A common problem when calibrating with an inverse model (Pest, UCODE, MF2K) or the automated sensitivity analysis is that a few large residuals control the sum of squared residuals statistic. When this happens, your calibration efforts are focusing on just those wells with very large errors. A new graph plots cumulative sum of squared errors so you can see if most of that statistic is encompassed by just a few targets. The following example shows that 70% of the sum of squares is accounted for by 4 targets.
Mass Balance for Transient Models
You may now create a mass balance hydrograph for a transient model that summarized the changes in flux over time for the whole model, an entire layer, a window, or a digitized area. An example is shown below.
Easy Import of Model Results
Groundwater Vistas has been enhanced to allow you to quickly scan through the results of a transient model. Instead of repeatedly selecting Plot/Import Results, you now can select Plot/Next Timestep (Ctrl+Shift+N) or Plot/Previous Timestep (Ctrl+Shift+P).