How do you define layers and assign conductivities in Visual MODFLOW?

[Chris Kim]

Hi everyone,

When building a groundwater flow model in Visual MODFLOW, how do you usually decide:

1. The number of layers,

2. The criteria for dividing layers, and

3. The hydraulic conductivity values for each layer?

Do you base the layer structure mainly on geological units, differences in hydraulic properties, or simplified zones?
I’d like to know your common practice or general approach.

Thanks,

[Jakab Andras - Gmail]

This is a rather conceptual question, and the answer may be different depending a few factors. I recommend, therefore, reading some basic textbooks such as Applied Groundwater Modeling (https://shop.elsevier.com/books/applied-groundwater-modeling/anderson/978-0-08-091638-5) by Anderson, Woessner, and Hunt, or selected short books from The Groundwater Project (gw-project.org).

András 

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This group was created in 2004 by Mr. C. P. Kumar, Former Scientist 'G', National Institute of Hydrology, Roorkee. Please visit his webpage at https://www.angelfire.com/nh/cpkumar/
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