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Indra Wibisana

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  1. Indra Wibisana

    MODAEM problem: "Assertion failed: Value for rRad"

    Thank you for the discussion. Still, I do not understand the meaning of error code "Assertion failed: Value for rRad", but I found out that I can make satisfactory result for my model using MODFLOW instead. I can not make a solitary specified head point in MODAEM (either because of the limitation in the package or simply because I just do not know how to do it), while in MODFLOW, I can just assign the corresponding cell's IBOUND to constant head (-1). (Well, despite the efforts of adding these control points to obtain a more "accurate" steady state initial condition, in the next transient simulation, this control point is just not suitable for model calibration, it will just differs a lot between field observation data and simulation results)
  2. Indra Wibisana

    How to simulate the river recharge condition in FEMWATER?

    I think you can use either of them depends on the data which is available for you. I have never had flux data to simulate river recharge, but it would interesting if I can get real data.
  3. GMS 7.1 Tutorial needs minor updates (unless this version is not supported anymore). The obvious one: the title is still read GMS 7.0 Tutorials. I'm going through the whole tutorial (I have just reached MODFLOW). I found several options or menus or buttons mentioned by the tutorial are found slightly different on GMS 7.1. I will compile the list periodically as I go, but I do not think that this will be a long list. I also encountered a bug that includes a part of a model even when I create new project, but this bug will be gone if I close all projects and restart GMS.
  4. Indra Wibisana

    bringing an image into GMS

    If you have two points on your model which is on the same location with two points on the map image, (if you have three it is better): 1. Take note of the coordinate of the two points on the model. 2. File | New 3. Open the image file, change the type to jpg or *.* 4. Register the image, using 2 Point Registration (or 3 Points Registration). 4. Save the file as .gpr 5. Close everything. 6. Run GMS, Open the model. 7. Open the image file, and check "import to current project" option.
  5. Indra Wibisana

    MODAEM problem: "Assertion failed: Value for rRad"

    I have received the reply from Aquaveo Technical Support: Thank you for the explanation. I do not know if I should pursue this via e-mail to Aquaveo Technical Support, so I'm returning to the forum. What if I need to add a known head at a certain point as a "control point" in the model? I can not use a point although it has been set as "specified head". The head value of this "control point" is acquired from field measurement, and it might be anomalous which could be caused by some unknown reason (topographical variation, heterogeneity, pressure variation, or aquifer geometry and distribution, for example) If I made a short arc to replace the point, would it affect the "accuracy" of the model?
  6. Hello, I'm still learning to use GMS and I was trying to run GMS model for my thesis when I encountered this error. I'm running GMS 7.1, and I'm using a MODAEM conceptual model. This is the screen shot: If required I can send the gpr (782 KB) or the modaem.err file.