Aquaveo & Water Resources Engineering News

August 2013 Sprint

  • Fixed 10 bugs
  • Training course in Los Angeles
  • Training course in Mexico City
  • MODFLOW-LGR support completed including MODPATH functionality and a second tutorial
  • Added DGN (MicroStation) file support
  • Added ISTCB1 option support in MODFLOW STR and SFR packages
  • Progress on improving native MODFLOW text output
  • Progress on open sourcing MODFLOW changes
  • Progress on MODFLOW-USG support
  • Added MODFLOW option to default starting heads to the grid top elevations
  • 3D Grid to shapefile export now lets user pick all, active, or selected data sets to export

July 2013 Sprint

  • Fixed 13 bugs
  • Posted a GMS 9.1 update
  • More progress on improving native MODFLOW text output
  • More progress on open sourcing MODFLOW changes
  • MODFLOW-LGR progress
  • MODFLOW-USG progress
  • Implemented smooth fonts. Fonts will look a lot better
  • Removed display of node in the middle of quad elements of a 2D mesh
  • Lots of code refactoring taking place
  • Attended the ESRI User Conference

ESRI International User Conference 2013

Join us at the 2013 ESRI International User Conference July 8-12, 2013 in San Diego, California. This year marks the 32nd convening on the International Conference on GIS technology. If you will be attending this conference, please stop by the Aquaveo booth to say hello. This conference typically enjoys a lot of support from the engineering community engaged in geographical information systems. It will be a great opportunity to connect with and learn from experts in the field.

Blog tags: 


We enjoyed seeing many of you at this year's MODFLOW and MORE 2013: TRANSLATING SCIENCE INTO PRACTICE conference. We had a booth, a couple of posters, and a couple of presentations this year. One poster showed MODFLOW-USG refined grids of different types. The other poster was on MODFLOW Server (images below). Dr. Norm Jones gave a very interesting presentation on Monday on his paper entitled Debating the Long-Term Impact of the Southern Nevada Pumping Project based on consulting work done at Aquaveo. One of Norm's graduate students, Scott Christensen presented on Wednesday on his paper entitled A web-based groundwater mapping and visualization tool using Google Earth which is based on work done partly at Aquaveo and partly at BYU.
Software demo. Photo courtesy of  igwmc.

The booth. Photo courtesy of igwmc.


Isosurface Transparency

For some time GMS has included the ability to have transparent surfaces and transparent contours. These transparent surfaces can come from a TIN, Solid, Cross Section, Mesh, or Grid. The transparency for these surfaces is controlled by adjusting the transparency field in the Material Properties dialog. For contours, the transparency is controlled in the Contour Options dialog.

One of the new features in GMS 9.1 is the addition of transparency for iso-surfaces. The transparency of individual iso-surfaces can be controlled in the Iso-surfaces Options. Below we show the dialog and some iso-surfaces with and without transparency.
Iso-surfaces without transparency

Iso-surface dialog with transparency control

Iso-surfaces with transparency

June 2013 Sprint

  • Fixed 6 bugs
  • Fixed problems with the new "Copy to Coverage" command
  • Updated help links to wiki pages and added automated tests to report when these get out of date
  • Good progress on improving MODFLOW native text output
  • Good progress on open sourcing MODFLOW changes
  • Overhauled MT3D Basic Package dialog to make setting starting concentrations much easier
  • Project-on-the-fly: made new objects get assigned the display projection
  • Sped up test coverage analysis
  • Started work on FEFLOW mesh import/export
  • MODFLOW-LGR progress
  • MODFLOW-USG progress


The MODFLOW-LGR interface in GMS is almost done. Here are a couple of images showing a nested child grid in plan view and front view.

MODFLOW-LGR with nested child grid, plan view

MODFLOW-LGR with nested child grid, front view


The GMS development team has been working on implementing MODFLOW-USG since the documentation was released on May 3, 2013. We have been making good progress. One of the items related to MODFLOW-USG is the ability to work with unstructured grids. The figures below show some of the grids that we have generated with the development version of GMS. We used the same conceptual model and generated a 3D finite element mesh, a 3D structured Grid, and 3D unstructured grids.
Conceptual Model
Finite Element Mesh - FEMWATER or FEFLOW

Finite Element Mesh - FEMWATER or FEFLOW
Structure Grid - Traditional MODFLOW

Structure Grid - Traditional MODFLOW

Unstructured Grid - Nested Grids

Unstructured Grid - Nested Grids
Unstructured Grid - Quadtree

Unstructured Grid - Quadtree

Unstructured Grid - Voronoi

Unstructured Grid - Voronoi
 We will be at the MODFLOW and more 2013 conference this next week. Come by our booth to learn more about new developments in GMS with MODFLOW-USG. We will also have a couple of posters that we are presenting.

GMS Training, Olten, Switzerland

Members of the GMS training team recently completed an onsite training class in Olten, Switzerland from April 22-24. It was an intense 3 day training experience. The small class size allowed the students to be very engaged and learn a lot of material in a short period of time. The day following the training was spent working on the client's groundwater modeling project and applying the principles learned in the training. This type of onsite training is available to clients worldwide at very reasonable price. If you are interested in onsite training, including help with your modeling project, contact

April 2013 Sprint

  • Fixed 7 bugs
  • Project on-the-fly code improvements
  • Training course in Switzerland 
  • MODFLOW-LGR progress
  • MODFLOW-USG progress
  • Testing coverage analysis progress