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tlillys

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About tlillys

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  • Birthday March 29

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    ted.lillys

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    Duxbury, MA
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    GW,SW, integrated modeling, optimization

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  1. Hi all I will be trying to develop cross sections and a solids model from 100 - 200 boreholes. I wanted to see how robust the auto process was in GMS. So I used the data from the TPROG tutorial with the Stratigraphy Modeling-Horizons and Solids tutorial. When I got to the Horizons -> Solids step I got the following error. I double checked that I completed all the steps a couple of times but always got the same result. Any bright ideas out there? TIA Ted
  2. Related question - is there a direct or indirect interpolation pathway from MODFLOW heads (or 2D scatter, etc.) to feature object nodes
  3. Thanks Lalith - I'll write back when I have finished the conversion.
  4. Refining a regional steady-state model where the local grid boundary intersects rivers and drains (see image). I went through the tutorials for SS refinement. This model departs from that example in a couple of ways - flow field is not nicely uniform in area; and MF BCs are intersected. I created 4 arcs initially to set up the boundary of the local model. Then I started to wing it - created nodes at each intersection of 1' head contours to map constant heads to the arcs but I'm thinking that may not be the best way to go. Any suggestions on a strategy for mapping the heads and the BCs to the local model are much appreciated. Ted
  5. Update - some confusion on the client's part. They were trying to install Arc Hydro which would require ArcGIS. Not sure if they have successfully installed GMS yet. Stand by... Ted I'm asking this question on behalf of a client - they are upgrading their GMS license to 10.4 (I believe that's the version - waiting for confirmation) with a single-user USB dongle. During the installation process of GMS, the installer asks for a ArcGIS license. They don't have one. What circumstances would require a license to ArcGIS? Is there a work around? Thanks Ted
  6. I have a material-based conceptual model developed from an existing FEM model - 10 layers, all but one layer have homogeneous Kh and Kv values. Using MF2005 with LPF. The one heterogeneous layer is currently represented by the geometric mean. How can I incorporate the heterogeneous layer in the material based model? Thanks in advance Ted
  7. I'm a newer user building a MODFLOW model that I will then need to teach others how the model was constructed, I am establishing a coverage for the WEL package that will use a point shapefile from another model to inform the location and pumping/abstraction rates. One of the attributes in the shapefile is "Layer", identifying the layer of the well in the 10 layers of the model. I was shown how to create the coverage but I wanted to understand the rationale for selecting the Layer Range item in the Source/Sink/BCs list. I'm guessing this allows the use of the Layer attribute to map the points to specific layers in the Solid and Grid models, assuming they appear within layers 1 to 10, as specified. Also, I had a question about the "Use to define model boundary (active area)" check box. I have conflicting information as to when that should be checked in a coverage. My intuition tells me that is would only apply to feature objects that define the model boundary and not necessarily other boundary conditions that are applied to the model boundary conditions. For example, given one coverage (a polygon) that defines the extent of the active region of the model across all layers is create with the "Use to define..." item checked. If separate coverage was created that defines a constant head on layers along one edge of the active model domain, already identified as active in the other coverage, does the box need to be checked? When should it be check and not? Is there a danger in checking the box when it shouldn't. Any insights are appreciated Ted
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