MODFLOW-96 Data Requirements

Date requirements for visualizing MODFLOW-96 results are as follows:

Notes:

  1. If the simulated head at a cell is equal to either HNOFLO or HDRY, Model Viewer assumes that the cell is inactive and will not display it. Therefore, the common practice of setting HNOFLO or HDRY to zero should be avoided if heads at active cells might also be zero. Another consideration is to avoid truncation error. For example, setting HNOFLO to 99.999 should be avoided because the output might not be written with adequate precision. Instead, it is recommended that HNOFLO and HDRY be set to large negative integer values such as -1.0E10 and -2.0E10.
  2. Model Viewer reads unformatted files much more quickly than formatted files. Therefore, for a faster animation, the head file (and drawdown file, if saved) should be unformatted.