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  3. Hey, thanx for replying! sorry for being unspecific. It is like you said, the tracer concentration is always zero. I have checked all the potential problems that you mentioned but still, the problem is there. I attached a picture of the model, if maybe that helps someone with an idea... Thanx again!!
  4. Hi, There is a way to re-extract and update only selected cross sections but it's not an easy procedure and would require you to edit some of the WMS .map and cross section database files using a text editor. I guess I don't really recommend this approach. I guess you have a couple of options. One is the approach you mention, where you extend any cross sections that don't intersect the bank lines so they're beyond the bank lines. This would require you to re-extract all your cross sections, and your edits based on survey data would be deleted. You would need to re-enter your survey data for each of your cross sections in this case. This should not be too difficult since you should already have the survey data saved as a cross section database file. It would just be time-consuming, especially if you have lots of cross sections. Another approach is to edit each cross section's geometry and point properties by going to the cross section attributes | Assign Cross Section | Edit and then adding the left and right bank stations manually into the Point Props window. The drawback of this method is that your left and right overbank lengths will not be computed by WMS for the cross sections where the left and right banks are manually defined. When you run HEC-RAS, you will get an error message for each of these cross sections. You can then compute the left and right overbank lengths for these cross sections using the measure tool in WMS. You would have to re-enter these lengths in HEC-RAS each time you export your model from WMS. So it may be worth it to you to update your cross section arcs in WMS, re-extract the cross sections, and re-merge your surveyed cross sections, but that's up to you. I agree that it would be nice to just update selected cross sections in your cross section database file, but this option is not yet available in WMS. Hope this helps, Chris
  5. I created a HEC-RAS network schematic, and was in the initial stages of running HEC-RAS when a series of errors occurred. These errors stemmed from the fact that some of my cross sections did not intercept the left overbank (LOB) and / or right overbank (ROB) lines (middle image). Compare to the top image, where the cross section intercepts both LOB and ROB. I did not realize this was critical when creating the cross sections in WMS. Extending the cross sections beyond the LOB / ROB would seem to solve the problem. As you can see in Image 3, when the cross section does not intercept one of the bank lines, it assigns both bank stations to the zero point. My question is - is there a way to edit the cross sections (i.e., extend them) after a network schematic has been created? Since I merged all extracted cross sections with field data, I'd hate to go back and redraw all cross sections, extract again, and then merge again. I attempted to draw extensions onto the cross sections in WMS (create feature arc tool, then use "node-to-vertices" option to create a single line), however, this seemed to "unlink" the cross section with my merged data. So, is there a quick way to extend cross sections beyond LOB / ROB centerline coverage, to eliminate the HEC-RAS errors? Without having to redraw / extract / merge all cross sections again. Thank you!
  6. Chris, Thank you for the advice. I ended up removing points from the extracted cross section prior to merging - this worked nicely.
  7. Helo, it is hard to say without seeing the model. Could you be more specific in what do you mean by "nothing happens"? Do you mean like, the tracer concentration is zero everywhere through the simulation? First look at the mt3dms list file (case.out) and make sure, that the simulation ended without any errors. Then I would suggest to look at Output control in the basic transport package and make sure it is set properly, so MT3d is writing the concentration binary arrays at correct times. Also try to look at the model cell containing the injection well via sources/sinks dialog and check, that there is associated concentration with it.
  8. Hey there, I am trying to generate transient model in order to test if there are potential leakages through the barrier. We have boundary conditions on two sides. Left of the barrier there is a river and right of the barrier I am using CHD boundary condition. The whole layer is considered to be gravel with K of 0.001 m/s. On the left side of the barrier there is as well an injection well into which we put NaCl at the time of 7200 s in concentration of 1200 mg/L. Right of the barrier we have a pumping well where we pump at ration 6l/s, starting from time 0 s. The whole experiment lasts until 21600 s. MODFLOW is working perfectly with the boundary conditions and we are able to see expected draw down because of the pumping well. I have set specific storage, specific yield, stress periods, concentrations but noting happens when I rund the MT3D model. Is there maybe and easy solution to this? Maye someone can point to me what should I look in to? Best regards, Urban
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  10. Hello, I have some cross sections of a river wich I need to interpolate to a DEM or Scatter points. Afterwards I want to interpolate the Scatter points onto the Mesh. I just found out, that interpolating cross sections is possible with nodestrings, but I didn't find out how that exactly works. Can you help me with it?
  11. That is exactly what I was looking for! Thank you!
  12. NicT, SMS will allow you to create a text file including node point locations and computed datasets in the "Save as" menu. 1. Select the Mesh to make the mesh module active 2. Select "File | Save As..." 3. Change the "Save as type:" to "Tabular Data Files (.txt)" 4. Give it a name and click Save. 5. Specify the number of columns, Precision, and Delimeter type 6. In the "Data" row at the bottom select the "Data" button for each column to choose a mesh dataset that will be written to the text file. You can choose "X" and "Y" which are the coordinates of each node, and then choose other datasets to add the the other column(s) (which will be however many columns you chose to include) 7. Select OK when finished setting up the columns and it will create the text file with the columns configured how you set them up reporting data at the node locations. I have used this quite a bit to transfer mesh data to other programs and excel. -Calberts
  13. I used to always specify 'SRHN' as the output format for my SRH2D simulations; however, I ran into some issues with non-sensical values for Froude number and depth (in the output file only, the simulation ran smoothly). Given that the XMDF format is supported by SMS I've recently switched to specifying that format for output. This switch has had both positive and negative impacts... on the positive side, I don't have any non-sensical values (hooray!). On the negative side, I can't seem to find a way to create the specific output I'm looking for. Eventually what I need is a point shapefile with points at each mesh node and attributes (depth, velocity magnitude, shear stress, etc) associated with each point. This used to be very easy using the SRHN output as it was essentially a text file with each row listing point (node) coordinates and attributes; this is easy to bring into Excel and/or GIS. The XMDF format is proving much more difficult to work with in this regard. Has anyone used XMDF to create an attributed point file?
  14. Yes, I have the latest nightly build. But they are still trying to find the problem, so the build won't include any fix yet. Thanks.
  15. Hi Julian, I decided to use another variogram method than the semi-logarithmic for the cases when I got the error. If you have problems with the Kriging procedure, have you tried one of the recent nightly builds?
  16. I want to simulate the seepage of water through the base of a reservoir, but I do not know how to do it. I tried to use SEEP2D but I just know how to simulate the seepage of water through levees, earth dam, and sheet pile. Please show me which modules of GMS and which model (are currently supported in GMS) I should apply for this case. Kind regards, Quoc Tran
  17. Hi Jonas. Did you solve your problem? I'm having similar issues with my kriging whereby GMS appears to not be writing the Kh values for MODFLOW. Tech support are looking into it, but it may take a while. So I was wondering if you had a solution. Thanks.
  18. Hello Petrdusek, We at Aquaveo Technical Support can help with this issue. If you have followed the instructions for adding a TIN to the lake bathmetry from the LAK Package tutorial it should be outputting the elevations correctly. In our XMS Wiki page on the LAK Package it mentions using the Adjust Cell Elev. tool can cause instabilities in a model, if you have done this you can correct it by re-interpolating your top and bottom elevations. If neither of these are the cause, please email us ( and we would be happy to send you a link where you can upload your files and then we can take a look at what is going on. Regards, Zack Aquaveo Technical Support (801) 691-5530
  19. Thanks Alan. The model I am working with was created by a co-worker, so I am not exactly sure of the sequence of his steps. He seemed to imply that first he used the Solids to HUF command, and then the Solids to MODFLOW command, but with the HUF package selected as the flow package. In the resulting model, I can select a plan view and layer, and in the Display menu turn "cell faces" on. Now, I see four colors of cells, that match the four colors in the materials editor. It seems as though, then, each cell is simply one of the four assigned material HK values. Is that the fact then? If you care to have a look, a file was uploaded to aquaveo's file cloud, and my password to folder was assigned to me as aquaveoKW, uploaded April 19th (13 days ago). The file I uploaded is named
  20. hello, i have one more problem (asking for a colleague) we are trying to create a simple steady state and transient simulation of an area with a lake present. we have interpolated the lake bathymetry to a tin, however the model always ends in an error. without the lake boundary condition the simulation runs fine. are there specific instructions how to set up the lake bathymetry? should we use elevations above sea level or relative? thanks
  21. well thank you, havent thought of that
  22. Thanks for the input. I have noticed this also. I added a request to create a fill box for the color legend. This should be fixed in a future download of WMS.
  23. My land use legend is difficult to read because it blends in with the mapped land use polygons. Is there a way to add a fill color to the legend?
  24. Anything is possible, but this would be difficult or impossible to do just using the HMS interface. You'd probably have to edit the HMS text files using a text editor or use WMS to combine models somehow. Chris
  25. Thank you for your response. Actually I did it same way, I was looking at contour and values too but I confused when I saw the histograms. May I find any article or document about the interpretations of contours and values? It would be helpful to my study.
  26. Once you have imported the MODFLOW solution you should see a CCF item in the project explorer. Right click on the CCF item and choose the CCF->Datasets command. You should see a RIVER LEAKAGE dataset. Select the cell with the data set and then choose the Display | Plot Wizard command. Select the Active Dataset Timeseries plot and then click on Finish. You should now see a plot of river leakage for the selected cell. Right click on the plot and select View Values if you want to copy the data elsewhere.
  27. The plot tells you information about the dataset. The histogram tells you the number of values in the data set within different ranges. I personally don't fine the histograms terribly helpful when doing a seepage problem. I look at contours and values on the mesh itself.
  28. I obtain this plot directly from software. After I started to run the SEEP2D, in project area, under the 2D Mesh Data has total head, gradient_mag, flowline, flowrate, pressure head, pore pressure etc. When I double clicked this tools, dataset info wizard came and after the double clicked on the 'Active time step histogram', I can see this histograms for each one. I don't understand how should I commend this histograms, what are the meaning etc.
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