Using DYNSYSTEM as a complete modeling system has many advantages over other popular groundwater modeling packages. One of the most important is the advantage of a finiteelement grid based model.
DYNSYSTEM finiteelement grid

MODFLOW finitedifference grid

Some obvious advantages to finiteelement
triangular gridding is the ability to use greater
discretization in important areas while using large
elements in unimportant areas. The rectangular, finitedifference
gridding system uses many more elements.
Also, you will notice that, in order to create anisotropy
within the bedrock system of this model, the MODFLOW grid
must be rotated to align the grid with the axis of anisotropy.
In the DYNSYSTEM model, anisotropy is created with a simple material
assignment, eliminating the need for grid rotation and allowing
easy modeling of any anisotropy angle.
Next page...