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D R Sena

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About D R Sena

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  1. I recently faced the same problem... Just check whether your extent of the parameter polygons have really enclose the grid extent. or while mapping the recharge/ Sy field do you get any such messages like.. "some xy series....... will be interpolated from available information". if thats the case just edit the recharge / SY polygons beyond the grid field and try.. you can check by asking model to initialise the parmaeter by itself to check you get any parametrs such as hk_$$$/ sy_### that u have not entered in key field but you still get them .. (Another check is after mapping the parameter fields to MODFLOW see the properties of HK and SY/SS in modflow grid and see the edges do have the keys as already menioned above). I some how been lucky to solve the problem this way..However, I am still a beginner..... good luck D R Sena
  2. Dear All, I am running a transient groundwater problem with the following configuration: 1. A river that has a transient water level from a higher value that terminates at Sea.( assumed -11 m) 2. The boundary nodes read transient water level head derived from observed pre- and post-monsoon observed water level ( The intermediary data were interpolated linearly on the desired time step. 3. Recharge defined based on a transient series equation of temporal rainfall. I am having water level data collected in an array of wells in my study area in the month JUne and Oct . I am running a daily simulation, where in I tried once giving two break point data corresponding to the dates mentioned. When I ran the simulation I got in .os_ file as: 0.000000 3.580000 1 hed1 31.00000 --- ( Observed data line first obs date in June) 0.000000 6.380000 1 hed2 167.0000 (Observed data line second obs date in Oct) 0.000000 0.000000 1 no_hed3 0.2000000 ( 0.2 day is time step) 0.000000 0.000000 1 no_hed4 0.4000000 0.000000 0.000000 1 no_hed5 0.6000000 0.000000 0.000000 1 no_hed6 0.8000000 0.000000 0.000000 1 no_hed7 1.000000 ... and so on 0.000000 0.000000 1 no_hed155 30.60000 0.000000 0.000000 1 no_hed156 30.80000 0.000000 0.000000 1 no_hed157 31.00000 ( The date of observed data first one not read ) 0.000000 0.000000 1 no_hed158 31.20000 0.000000 0.000000 1 no_hed159 31.40000 .. so on 0.000000 0.000000 1 no_hed836 166.8000 0.000000 0.000000 1 no_hed837 167.0000 ( The date of Observed data second one not read) 0.000000 0.000000 1 no_hed838 167.2000 0.000000 0.000000 1 no_hed839 167.4000 I made a lot of trial but guessed that the missing data in between may be required so I tried a linear interpolation of data in the missing dates and gave it as observed data for the whole time series concurrent to my simulation. The simulation read correctly the values as I gave and the .os_ file read as follows ( made the correction to 1 day time step) 0.000000 3.576000 1 hed1 0.000000 (Observed data line first obs date) 3.420694 3.609000 1 hed2 1.000000 3.547971 3.641000 1 hed3 2.000000 3.679075 3.674000 1 hed4 3.000000 3.814485 3.707000 1 hed5 4.000000 3.954180 3.740000 1 hed6 5.000000 4.097085 3.773000 1 hed7 6.000000 4.243711 3.805000 1 hed8 7.000000 so on.... 9.843607 6.449000 1 hed164 163.0000 9.817718 6.434000 1 hed165 164.0000 9.792249 6.418000 1 hed166 165.0000 9.767187 6.403000 1 hed167 166.0000 9.742520 6.388000 1 hed168 167.0000 (Observed data line second obs date) 9.718239 6.373000 1 hed169 168.0000 9.694332 6.357000 1 hed170 169.0000 9.670789 6.342000 1 hed171 170.0000 Now my problem is after running the simulation ( calibration) it assumes the water table which is unrealistically interpolated to a fictitious water level to maintain continuity and force the domain parameters adjust accordingly. I would rather expect GMS to calibrate for me for the desired dates observed value and run normally for the dates of no observation. Can anybody trouble shoot this problem? Sorry for to put you in inconvenience with such a big posting. thanks DR Sena
  3. I am using HUF for GMS (ver 6.0). Want to use PEST/ MF2KPES calibration. While I am trying to search for the K fields in any coverage setup it is not there. How can i assign K values as mentioned in manual for calibration such a zoning with keys -100/-200 etc. Kindly help. see the attached figure
  4. Thanks Sean, I could trouble shoot the error. It was a silly mistake and an oversight while saving the project simulation file a tiny window that I was missing due to oversight at the bottom of save window. i.e. saving simulation file to a folder option. Thanks again as i could get it by repeatedly saving to a generic test file as mentioned by you and finally came across this oversight. Sena
  5. Dear all, I am attaching the captured simulation window again for the problem I face while running GMS 6.0. in the simulation manager I don't get the simulation file names after completing simulation. Only .glo, .out ..... etc. Further when I save this simulation and re-open it whatever simulation result I got earlier vanishes popping up a message the file doesnot exist and it opens until the grid covergae missing all modflow simulation steps. I had to do all over again. Kindly troubleshoot the error. DR Sena
  6. I have been running GMS 6.0 for my problem with a complex lithological system, where in I have about 12 horizons. I had converted them to two layers and assigned to modflow layers I had put in the requisite boundary conditions. when I check for simulation i don't find any errors excepting few warnings like the changing head boundary ..... The simulation too runs showing the model result like head variations. but the directory structures in the solution directory comes with only .extension with no name attached to it. Anybody let me know the reason. Next time when I open the file the modflow solution under grid vanishes and I have to do all the steps beyond grid assignment again. DR Sena
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