Aquaveo & Water Resources Engineering News


GMS 8 has an interface to the USGS SEAWAT model. SEAWAT is a combination of MODFLOW and MT3D that allows for the simulation of density dependent flow and transport. I have included an animation of one of the sample problems from the SEAWAT documentation. We also have created a tutorial that shows how to use the SEAWAT interface within GMS.

GMS Community Edition

Starting at GMS 8.0 there is a free version of GMS called "GMS Community Edition". This version includes the MODFLOW and 3D Grid components and thus allows grid-based creation and editing of MODFLOW simulations. Existing simulations can be imported and edited as normal. There are size limits in this free version: grids can be no bigger than 5,000 cells and MODFLOW is limited to 3 stress periods. You can still import models bigger than this but then printing and saving are disabled. Otherwise, printing and saving work as normal. Also, once a model exceeds the limits a watermark will appear in the graphics window.

We hope this free version will allow more users to easily begin discovering GMS.

March 2011 Sprint Highlights

Some of the more interesting accomplishments from the March 2011 sprint:
  • Released GMS 8.0 with lots of new features including a free Community Edition, support for MODFLOW 2005 and SEAWAT, faster and better looking graphics, improved contouring, ArcGIS map server layers, and much more.
  • Updated the GMS web pages at The graphics are better, the content and layout is much easier on the eyes, there's a new learning center with videos and tutorials, and a new editions and pricing page, and a new "Why MODFLOW with GMS?" page.
  • Posted a new video on our YouTube channel showing the MODFLOW stream package and streams in a conceptual model.
  • Fixed 33 bugs
  • Found and fixed some memory leaks
  • Finished the new lighting options that will be included in version 8.1
  • Made good progress on implementing the new Rasters that will be available in 8.2 and will handle DEM data much better.
  • Added a bunch of pages to the wiki about the SEAWAT interface.
  • Made good progress on improving the annotations that are new in 8.0 and will work much better in 8.1
  • Added more automated testing of the 64 bit version of GMS that will be available with 8.1

February 2011 sprint highlights

Below are some of the more interesting accomplishments from the February 2011 sprint.
  • Fixed 30 bugs
  • Sped up reading of a large MODFLOW model from 15 minutes to 15 seconds
  • Removed the broken 3D mesh particle sets interface
  • Created a 64 bit version of the T-PROGS mcmod.dll
  • Got all unit and intermediate tests running on the 64 bit build
  • Planned work on enhancements to the ADH interface
  • Added a preferences page for MODFLOW
  • Fixed several issues with the GMS 8.0 installer
  • Added two more videos to the YouTube channel
  • Planned for quarterly webinars
  • Solved some problems with the .hed.h5 file created when reading a MODFLOW solution
  • Fixed MODFLOW 2005 to not say "Didn't converge" when it really did
  • Created samples of the horizons and MODPATH tutorials
  • Updated all the tutorial pdf documents and zip files on the wiki
  • Documented some horizons applications on the wiki
  • Overhauled and added multiple tests for the image import code

January 2011 sprint highlights

Below are some of the more interesting accomplishments from the January 2011 sprint.
  • Posted an update to GMS 7.1 with several bug fixes
  • Fixed several bugs in the development branch
  • Ran cppcheck to find and fix various bugs
  • Created three more videos for marketing
  • Added some new images to the image gallery
  • Wiki: Added MT3D Calculate Mass dialog help, Arc Hydro Groundwater, block fill in contour options
  • Changed iso-surfaces to use OpenGL vertex arrays
  • Cleaned up some things in all the tutorials
  • Disabled the contour options while in the Map module if there is no MODAEM model
  • Changed model checker to default to stop reporting after N errors
  • Added a Run SEAWAT macro button to the toolbar
  • Updated the advanced training course materials
  • Created the GMS 8.0 branch
  • Posted the first GMS 8.0 beta (woo hoo!)
  • Updated and added lots of tests

December sprint highlights

Below are some of the more interesting accomplishments from the December sprint.
  1. Fixed 28 bugs in 7.1 and development
  2. Copy protection: Changed the welcome dialog to go straight to the registration dialog if no license found
  3. Copy protection: Hid the maintenance string if Community Edition (CE)
  4. Removed beta stuff from copy protection and updated the beta dialog
  5. Added CE limits to Help|About and when leaving MODFLOW Stress Periods dialog
  6. Fixed removing of some menu items based on program mode
  7. Added ArcGIS web layer files to installer
  8. Created some more video scripts
  9. Added new front page to all tutorials
  10. Wiki: Added MT3DMS run options page
  11. Wiki: Contour Options page updated
  12. Created some more images for image gallery
  13. Updated the GMS Advanced Course training materials
  14. Updated automated tests on lots of tutorials

November sprint highlights

Below are some of the more interesting accomplishments from the November sprint.
  1. Posted an update of GMS 7.1
  2. Fixed 32 bugs
  3. Implemented getting a license for GMS 8.0 via the internet
  4. Community edition watermark and internet license implemented
  5. Finished the GUI modernization work
  6. Implemented ArcGIS web layers for dynamic background maps
  7. Redesigned the GMG solver dialog
  8. Updated the GMS Advanced training course materials
  9. Updated 31 tutorials
  10. Documented the new Check For Updates and Annotations features on the wiki.
  11. Created the GMS Image Gallery on the wiki.

October sprint highlights

Below are some of the more interesting accomplishments from the October sprint.
  1. Fixed 13 bugs
  2. Posted an update of GMS 7.1
  3. Hid the module toolbar for the community edition
  4. Got OpenGl transparency strategy in place
  5. Implemented transparency on individual materials
  6. Implemented OpenGl vertex arrays for scatter point data
  7. Got block fill contour option working on 2d grids
  8. Updated some imagery of GMS and MODFLOW for marketing
  9. Updated MODFLOW code with the latest SAMG solver
  10. Documented grid redistribution on wiki
  11. Tested and updated twenty eight tutorials
  12. Created a design for the MODFLOW Gage package
  13. Updated materials for the GMS advanced course

September sprint highlights

Scrum method. See source for image license.

For a few years at Aquaveo we've been using the Scrum method. One of the things this means is that we work in monthly sprints and at the end of the month we have accomplished everything (hopefully) on our to-do list.

Below are some of the more interesting accomplishments from the September sprint. Some of these items are worthy of their own more expanded blog post and we'll put those up soon.

  1. Moved to our new office building at 3210 N. Canyon Rd. Ste 300, Provo UT 84604.
  2. Fixed 23 bugs. More info on these will be posted to the forum when GMS 7.1 is updated
  3. Finished with OpenGL vertex array optimizations in dev.
  4. Had a great GMS training course here in Provo Utah!
  5. Created an installation for GMS 8.0
  6. Added importing MT3DMS .ucn files
  7. Switched the default background color to white in GMS 8.0
  8. Finished changes for the GMS Community Edition
  9. Finished updating copy protection for GMS 8.0
  10. Improved several observation plots associated with MODFLOW so they use the MODFLOW observation information.
  11. Switched observation plots to use the observation target symbol
  12. Created the feature request forum and wiki page
  13. Looked at HDF5 compression issues and MODFLOW files. Found we can start reusing compression.
  14. Upgraded to MT3DMS version 5.3 in GMS 8.0
  15. Upgraded to MODFLOW 1.19.1 in GMS 8.0
  16. Added the Check For Updates feature to the GMS 8.0 Help menu. It also automatically checks for updates on startup.