How to create geological layers

[Prasenjit Maji]

Dear all,

Greetings

I am struggling to create the geological layers.

I was using Visual Modeflow classic where i could define the layers manually but with new update I am forced to use Visual modeflow flex where i am struggling to create the geological layers. My models are quite basic concentrating dewatering activities for local scale not in regional scale.  

previously I used to import layers from surpac/Leapfrog, at present i no longer have access to those softwares neither i have access to Arcgis.

Highly appreciate if anyone can provide some input in this regard. 

Thank you & Regards

Prasanjit 

[Jakab Andras - Gmail]

If you own a valid license of Visual MODFLOW Flex you still have access to Visual MODFLOW Classic. Many "old timer" modelers - including myself - continue using both interfaces depending on the actual project requirements and if required to get back to some of the older modeling projects. Nonetheless, migrating to Flex might be a bit strange as the user interface is quite different, but once you get accommodated it is much more flexible and efficient, especially with the last 3-4 major version releases. I'm not exactly sure what you are trying to do, but if the model is relatively simple, start by using the numerical modeling workflow which is conceptually identical to the Classic workflow. You have to create a starting grid, import or create surfaces by interpolating point objects in the Data tree, and assign them as layer elevations exactly as you would do it in Classic. You may then further refine your grid both horizontally and vertically as required.

There are a few tutorials coming with the Flex installation, and you may want to do the Airport tutorial that walks you along the steps of the numerical modeling workflow to build a relatively simple box model.

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[Robert Lanning]

Hi Prasanjit

Check out some of the online videos (YouTube) by Hatari Labs - they have some for creating geological layers. Depending on what you are trying to do, QGIS may be helpful as well for creating surfaces to inport into Visual MODFLOW (if you can access it) or perhaps MODFLOW Flex, which I found very frustrating and inferior to Visual MODFLOW in about every way several years ago when I tried to use it.

Good luck!

[Randall Hanson]

Also check out GemPy as recently demonstrated for the Kobo Valley of Ethiopia 

It’s free and open source too!!

Mekonen, S. S., Boyce, S. E., Mohammed, A. K., & Disse, M., 2024, Using an Open-Source Tool to Develop a Three-Dimensional Hydrogeologic Framework of the Kobo Valley, Ethiopia. Geosciences, 14(1), https://doi.org/10.3390/geosciences14010003

Cheers,

Randy Hanson

One-Water Hydrologic

Sent from my iPhone

On Apr 11, 2024, at 7:56 PM, Robert Lanning <geol...@gmail.com> wrote:

Hi Prasanjit

To view this discussion on the web visit https://groups.google.com/d/msgid/modflow/27a6940a-2dd9-4923-ad6d-cf7ca5b521afn%40googlegroups.com.