Changes to Geomodelr, July 31.

We added new parameters to help you build your model much faster. Also, we added the demo study that will help you to follow the tutorial without a plan. We also changed the design a bit to make everything easier. Finally, we are introducing basic support for FEFLOW® and it will get better pretty soon.

Ricardo Serrano


We made some changes to the first web geological modeling platform. We hope that you enjoy them and have a great time trying them. If you have any suggestion about the platform, or need help to get started, please send us an e-mail to We are really happy to help.

Tauramena, our tutorial, meshed with our new adaptive algorithm.


Separating the study page into sections and redesigning the model creation process.

The study page was getting a bit crowded so we decided to separate it in tabs. Also, there were some tools we wanted to introduce which would have made the page even more crowded, well talk about them in a bit. For that reason, we made a redesign of the study page.

The redesign is as follows: now only the model contents, like cross sections, datasets, and geological units are in the Geological Model tab, which is the default. To find the bounding box, coordinate system and model versions, you will have to go to the Model Settings tab. Finally, you might go to the Study Settings tab to change the permissions of the people who has access to the model, as long as you are an administrator of the study.

The model creation process has always been the hardest part of Geomodelr, we admit it. We made some changes to this process so it’s a bit more intuitive. We changed the design a bit, (everything enters through the eyes). Also, now the steps are more understandable, as you can see below.

When georeferencing, clicking in any of the coordinate systems will select the EPSG code and close the modal, so you can continue filling the information. Finally, instead of entering the corners you will have a cross with top, bottom, left and right sides of the bounding box. That’s more like what you are used to do in your GIS platform.

The demo study.

To help you get started with a model in Geomodelr, now you have the demo study. By default, the demo study will contain the files required to follow our tutorial. Also, it will contain four model versions, which you can set as model to skip drawing too many cross sections and, for example, generate visualizations of the units. The demo study won’t allow you to upload or remove files or upload or remove model versions.

Even guest accounts can create demo studies, so it’s a great way to test the platform without having to look for appropriate and open data, and they won’t be listed among other public studies, as they are probably redundant content. However, they are public. You should not store sensitive information in demo studies.

Usual contents of hydrogeological models

Model Parameters.

The changes in the study page were made, in part, to make space for model configuration parameters. These configuration parameters will allow you to change the way the whole model interpolates. One of this parameters is a change in faults. The second parameter is a tool for representing constant thickness soils. In the future, model parameters will contain much more.

Faults interpolation

With the faults configuration tool you can control how the faults work. By default faults worked by displacing a given point whose ray intersected the fault surface. This was a very stable way of representing faults, but did not create a full blocking fault representation, as some complex models show. We have instead added a new fault representation that fully blocks the points from reaching units hidden by faults, without loosing the generality of the faults representation. 

Geomodelr still uses the displacement of point as faults default, so your models won’t change immediately. You will also have the option to make faults not interfere in the interpolation process at all. This will allow you to debug problems of your model when a lot of faults are used and you don’t understand how things are moving.

Soils tool

For regional groundwater models, defining soils was a great pain with our modeling method. The problem is that soils change given a topography. That’s why we created a tool to make the creation of soils simpler by assigning a thickness to some units in the Geological Map. You have to select the option, and then fill a value in the units. This value is the thickness of the soil. After this, the model considers the region from the topography to the given thickness to be part of that unit. You can test it with visualizations like block diagrams or surfaces, but it’s particularly important for exporting models to MODFLOW or FEFLOW®.

Basic support for FEFLOW®

Now Geomodelr Hydrogeologist plan has basic support for FEFLOW®. The meshes available correspond to the same MODFLOW meshes we developed earlier, (without faults), but we will be creating new solid meshing algorithms capable of using all structured and unstructured finite element capabilities of FEFLOW®.

To use the FEFLOW® interface you should follow the same steps as in MODFLOW, but change the tab to FEFLOW® in the exports page. It will also generate a .zip file, but instead of the .DIS, .LPF, .BAS and .NAM files in MODFLOW, it will generate a .FEM file which will contain the geometry of the geological units with the flow parameters. 

The good thing about FEFLOW® is that it allows you to group elements, so we created groups for each unit and you can change the parameters of those elements directly from FEFLOW. Instead, MODFLOW has no way of doing that.

Hydrogeological models in FEFLOW

Closing remarks

Thank you for following our updates. We’ll keep you posted about changes to the platform. If you have any project and want to give a try to Geomodelr, tell us about it. We are eager to help.

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