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Hisham

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Everything posted by Hisham

  1. Yes, clearly all your modelled heads are all overestimated. Obvious quick fixes to try would include increasing K and/or lowering recharge. Try playing with PEST ranges.
  2. Hisham

    Time-axis label format setting

    Hi Cody I am using ArcGIS 10.4 Thanks
  3. Hi all Playing with the time series tutorial, I am unable to get the time-axis labels to plot correctly. I get years like 1899, 1900, 1901, etc. The time series table is fine though. Any ideas/suggestions? Thanks
  4. Dear isiarkos I would say you'd better include a "recharge code" field in your shapefile and use it to group polygons for recharge value assignment. Or, you can assign recharge values to the shapefile so that recharge values will be transferred to feature objects when you process your shapefile in GMS. This way, keeping multi-part features is not needed. I hope this helps
  5. Your shapefile polygons may also be intersecting each other. Check them in GIS first and correct topological errors.
  6. Hi there I think the easiest way to incorporate a stratigraphic model built in AHGW into GMS is through rasters. Any practical advice on how to do this? Thanks
  7. Hisham

    Importing AHGW stratigraphic model

    Hi again Continued trying and managed to get the tool to run using the input shown below. However, I didn't get points with horizon elevations as I was hoping. In stead, I got the table shown at the bottom. Again, any ideas will be most appreciated.
  8. Hisham

    Importing AHGW stratigraphic model

    Hi Alan I guess the tool I need to use is the "Transform XS2D Lines to Points" tool. However, I failed to run it successfully. I set it up as shown below. What have I got wrong there? Thanks
  9. Hisham

    Importing AHGW stratigraphic model

    Thanks Alan Now I have my cross sections (2 & 3 D). How can I use them to create rasters? Thanks
  10. Hi there What's the most efficient way to export a stratigraphic model built in AHGW into GMS to be used as solids? Thanks
  11. How can one create an HK layer in AHGW from a model that uses pilot points?
  12. Hisham

    Create MODFLOW World File tool error

    Thanks heaps Doug Gallup. This took care of the error.
  13. I've set up the correct version of AHGW with ArcGIS 10.4 but I am unable to create a world file to import a mudflow model. Any ideas or suggestions?
  14. Hisham

    Model conversion problem

    I have a "neatly" calibrated (heads and flows) MODFLOW 2005 model. When I try to forward run it does not converge! I can't think of a reason for that. When I force the forward model to converge, it shows dry cells that didn't show in the parameter estimation run. However, when I use MODFLOW Newton, the result is the same from parameter estimation and forward runs. What could the reason be for the non-convergence of the MODFLOW 2005 forward run? What is the reason for differing results between the MODFLOW 2005 parameter estimation and forward run (head and dry cells)? I'll be appreciative for any thoughts.
  15. Hisham

    Cell re-activation

    Thanks Michael for your reply. This was what I did but didn't seem to work. So had to re-build the grid agian!
  16. Hisham

    Cell re-activation

    How can one re-activate cells after being inactivated using a polygon or because they are thin cells?
  17. Hisham

    GMS's Horizons Conceptual Model feature

    Thanks Doug... I understand that you can use the clip and fill attributes to control your layers, however, I am working on a large area and something similar to the Horizons Conceptual model approach would have been easier for me to use..
  18. I've been using GMS for stratigraphic modelling for a while, but I am new to AHGW. I wonder, does AHGW have the ability to determine areas where a certain layer can or cannot occur? I mean something similar to the Horizons Conceptual Model feature in GMS? I rally appreciate any advice about this.
  19. Hisham

    Coordinate systems

    Solved === Solved === Solved === Solved === I got rid of the vertical coordinates all together and things now work 100%. Took me days to get here, but certainly worth it
  20. Hisham

    Coordinate systems

    I completed the tutorials with no issues at all. However, when I use real-world data things don't run well. I've got a couple of questions and I hope someone would be able to answer them: AHGW requires a projected [not geographic] projection system. Is this correct? The horizontal and vertical coordinate systems need to be compatible. Is this true? Thanks in advance for the help.
  21. Hisham

    Coordinate systems

    I tried endless times using all possible coordinate systems, but it seems I am missing something. When I run the XS2D Wizard I get the nasty three error messages attached. Any ideas from anyone.
  22. Hisham

    MT3D input mass units

    Hi there... A colleague of mine has nitrogen loads in kg/ha/year and he wants to input that in MT3D as mass rather than concentration. What units should he convert his values to? Thanks
  23. Hisham

    Use of Specified flow=0

    The default is now flow, so you don't need to assign a BC there. If you do then it shows as wells with zero flow! I struggled with this first but then got used to it. Hope this helps
  24. When you go to open a project to add its contents into another one, the "Import into current project" is disabled (greyed) in the 7 Dec 2015 version. Is there a work around or fix?
  25. Hisham

    Interpolate raster to MODFLOW layer

    Downloaded the latest nightly build. Raster interpolation to RCH works fine.
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