GMS

MODFLOW Native Text Format

By alemon on April 29, 2014

GMS uses a modified version of MODFLOW that can read data from HDF5 files. HDF5 is a binary, cross-platform file format for storing data. Large portions of the MODFLOW inputs are stored in an HDF5 file when creating a MODFLOW model in GMS. Large MODFLOW models are stored much more efficiently using HDF5 (compression ratios of 95% when compared to text files are common). Also, the read/write times are much faster with the binary HDF5 file when compared to text files.

Even though it has been shown that HDF5 with MODFLOW is extremely efficient, many users would also like to have their MODFLOW simulations in the native MODFLOW format. This is particularly true when completing a modeling project and the user needs to archive the project.

Native MODFLOW text files can be saved from GMS. Beginning with version 10.0, these text files also contain documentation comments that more clearly identify the contents of each line in the MODFLOW input file. Further, parameter definitions are also included in the text files.

There is a new video on the aquaveo youtube channel that highlights this feature. There is also a new tutorial that explains the various options associated with this feature.

Blog tags: 
GMS
MODFLOW
Native Text Format

GMS Sprint March 2014

By mkennard on April 7, 2014
  • Fixed four bugs
  • Finished advanced Run MODFLOW dialog
  • Finished improvements to MODFLOW native text
  • Created tutorial on converting existing models to MODFLOW-USG
  • Created MODFLOW-USG tutorial on quad tree refinement around rivers, wells
  • GMS asks user for local or online help preference on first-time help
  • vtu file saved with MODFLOW files
  • Some work on modflow.org
  • New plot axes finished
  • "Ortho" view for UGrids done. Symbols drawn on top when faces are filled
  • Arc and poly refinement attributes added for quadtree refinement
  • Arc and poly refinement works for quadtree UGrids
  • Added command to extrude 2D UGrid to a 3D UGrid
  • Ctrl-click to select UGrid cells now works
  • Disabled dragging UGrid nodes or editing coordinates
  • Cell size now displayed for selected UGrid cell
  • MODFLOW symbols in other layers not displayed when doing single layer
  • MODFLOW-USG arrays work like data sets - show contours
  • F2 edits selected name in Project Explorer
  • CTRL+U unselects all
  • Octree UGrid creation added
Blog tags: 
GMS
sprint

GMS Sprint February 2014

By mkennard on March 6, 2014
  • Fixed 6 bugs
  • Finished major tasks related to improving native MODFLOW text
  • Finished Map -> UGrid
  • Help|GMS Help uses local help according to preference
  • Finished a MODFLOW-LGR version of the Regional to Local tutorial
  • Fix Layer Errors command now works for UGrids
  • MODFLOW-USG solver now includes option to hide dimmed rows
  • Added moles/liter to concentration units for PHT3D
  • Added bitmaps for collapsed (non-pinned) windows
  • Disabled attempt at opening of .zip and related file types
  • Added MODFLOW-USG as a licensed component
  • Lots of UGrid code development
  • Horizons -> UGrid finished
  • Create UGrid dialogs done
  • Added number of 2D/3D elements in UGrid properties
  • Import of UGrids from a VTK .vtu file done
Blog tags: 
GMS
sprint

GMS Training, United Arab Emirates

By alemon on February 11, 2014
The GMS team recently completed a training course in Al Ain, United Arab Emirates. Aquaveo would like to thank Dr. Ahmad Alzoubi, Certification and Training Manager at United Arab Emirates University in Al Ain for helping to organize the class. The course ran from January 26 to 29, 2014. Course attendees came from as far away as Sweden to attend. The course was a great success. By the end of the week attendees could use the powerful conceptual modeling tools in GMS to build and calibrate complex MODFLOW models. As usual the attendees appreciated how easy it was to use GMS to create and edit groundwater models. Thanks to all those who attended and made for a great experience in UAE.
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GMS

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