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atajoodavi

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About atajoodavi

  • Birthday 02/02/1984

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  1. Dear GMS users, I have created my stratigraphy using “boreholes and horizons” method consists of four materials named “Alluvium (yellow)”, “Tertiary (pink)”, “Ophiolite (green)”, and “Hawasina (turquoise)” units. Horizon IDs are numbered for these units consecutively in the order that the strata are deposited (from the bottom up). So, the assigned horizon IDs for these “Alluvium”, “Tertiary”, “Ophiolite”, and “Hawasina” units are “4”, “3”, “2”, and “1”, respectively. Now, I want to map the generated stratigraphy (solid) to the 3D grid using the “Boundary Matching” option. I could not find any more documents about the theory / concept of this method except of “GMS; MODFLOW-Generating Data from Solids” tutorial. The main question is about the number of layers in the 3D grid and how we can define. Is it necessary to determine the initial layer length for the 3D grid layers or it will be automatically inherited from the solid? Is there any relation between unit numbers in the solid and 3D grid layers? For example, when I assigned layer range for the units in the solid as the table, it worked with some problems in the generated 3D grid. I have also tested many other combinations but without success and faced error as “Error in layer assignments to Solids, aborting”. Alluvium Tertiary Ophiolite Hawasina Begin layer 1 1 1 1 End layer 1 2 3 4 Can anyone provide me some insight / comments into what is going on about the mapping Solid to 3D grid (cross sections attached)? Best, Ata
  2. Dear GMS users, I have prepared and entered my borehole data into the GMS to generate stratigraphy of my study area. I have also created and filled required cross sections using GMS. Now, I want to snap the cross sections to the top surface of the study area using TIN. But, I have faced the error as “Top Arc elevations on cross section (s): …. have been changed to prevent intersection of arcs” and GMS cannot finish the process. I stuck in this step and any idea / comments would be really appreciated. Thank you very much.
  3. Hi everyone, I am trying to build a transient model to model lake-aquifer interaction using LAK3 package. At first, I’ve built a steady model without any problem. But when I change this model into the transient one, it can't run. I also checked my model. There is no error. If I inactivate the lake package, the transient model works correctly. I don’t know why this happens to my model? Does LAK3 package have a problem with transient modeling or special settings are needed? Thank you guys,
  4. Hi, I want to simulate three lakes connected to each other using the Lake Package. How do I define the lakes in conceptual model? I want to know that the sill elevation should be defined for which lake (parent or sublakes or all of them) and how I can connect these lakes? Thanks
  5. Dear All, I have been using PEST for calibrating my project using GMS. I have defined a set of pilot points for HK and want to assign a different min. & max. for each point in the calibration process. Does GMS support such idea? Any insights/helps would be appreciated. I look forward to hearing from you soon.
  6. Hello Thanks for your reply. But the head of cell didn't get dry. In the last time step, Active Data set Time Series shows head of the cell is not match with computed head that is shown in Time serires (Please see the picture).
  7. I have a transient MODFLOW model. In the last time step, some observation wells that is located on the boundary cells show unusual computed head (for example 200 meters lower than other time steps). Why?
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