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amy last won the day on March 13 2011

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About amy

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  1. Dear Alan, thanks for your reply. Unfortunately, following your suggestion I am not able to view the date by loading the project (the date is not saved in time control tab, appearing the default value, and it appears "Date: unknown" in tidal/harmonics tab). When contacting Aquaveo technical support, I was informed that after saving and reopening the project, this date is not displayed. They mentioned that, if I want to confirm that I have the correct dates for the constituents, the only way is to re-extract the constituent information and doing trial and error on the date until getting exac
  2. I have a SMS project using ADCIRC and astronomic forcing alone. The ADCIRC model control indicates the length of the simulation (simulation starts: 0 days and simulation ends: 15 days), however I cannot find the information referred to the exact period of the year for which the values of the astronomical constituents were extracted (from the Le Provost database). The tidal/harmonics tab at ADCIRC model control presents the indication: "date unknown". Where can I find that information? I could not find it in fort.15 file. I believe that those dates should be written somewhere. Thank you. Amy
  3. Dear all, after running a tuflow simulation (SMS 11.1.6, 32 bit), the flood extents look fine, but water levels minimum and maximum are zero. Does it make any sense? Did the same happen to you? Thank you. Amy
  4. Hi Raiphe, When I do the steps below, SMS crashes, and the same happens if I try to create the shapefile using depth instead of water level. Steps: - with the project already open, open the mesh data (file *.xmdf); - highlight water level; - menu data/zonal classification; - on the classification wizard window: on the zones menu click new; on the options menu leave on only the 'create merged coverage'; on the criteria list menu click new, highlight water level, click between, 0m-50m, timestep 6 20:00:00, ok. However, I found that if I use the option "Greater than" instead of "Between", I can
  5. Hi, I am using SMS 11.1.6 (32 bit) and 11.1.8 (64 bit) versions and, unlike when using previous versions, I am not able to use the zonal classification feature. The software crashes, indicating to report a bug. How can I overcome the problem? Is the bug being fixed? I need to extract the shape file of the wet front resulting from the simulation. Thanks for your help. Amy
  6. Alan, I just added the file Amy_nc_files.zip to your ftp site. It contains 4 .nc files. Each file has the daily information about 2 variables: sea level pressure and wind data (u and v). This is another thing I have to overcome since the files I used in the past used to have those variables in separate files, which were easier to insert in the appropriate field at the ADCIRC model control. Thank you for your help. Amy
  7. Thank you Alan for your prompt reply. On fact I use to interpolate the pressure and wind values to the mesh. Both wind and pressure files are .nc files. Regards, Amy
  8. Hi, I have several pressure files in scatter data corresponding each file to 1 day of the year (instead of having 1 file with the pressure information for all the year). In ADCIRC model control, when selecting NWS=5 and the pressure dataset, I can only select 1 pressure file, i.e. corresponding to 1 day. How can I overcome this? The idea is to use the pressure information along the time/days in my simulation, which occurs for several days. Is it mandatory to put all the pressure data (in scatter) in 1 file? Thank you. Amy
  9. Good morning Alan, I am glad to inform you that with your last suggestions the problem was solved; I was able to get the model to run without instabilities. Thank you very much for all your suggestions and your support. Amelia
  10. Thank you Alan for all your suggestions. Regarding your last question, during the run, the model warns about some instabilities in a shoreward cell, but the burst I've managed to see in the animation occurs in one of the extremities of the wave maker. I just uploaded the project files (Amelia_Boussinesq.zip) to your FTP site. I will be grateful if you can have a look at the project. Thanks. Amelia
  11. Alan, The principal wave direction is 0ยบ (shore normal projection), and I have damping layers on the sides too (40m with a coefficient of 1.0). I have smoothed the entire grid with the the respective model tool, with several iterations. After that, I had to modify the grid manually in the harbour structures, in order to keep them above water. Next, I've performed a single smooth grid iteration near the coastline to avoid the abrupt changes (I have also tried to run the model without these last steps - with submerse harbour structures - but still no good results for larger durations) Thank you.
  12. Alan, Thank you for your quick answer. I have an internal wavemaker that covers the entire column. Behind it, I already had a 100m damping layer with a coefficient of 0.9. I performed another test increasing the layer to 300m and changing the coefficent to 1.0 and still no good results were obtained for 1700s. The wave maker is 1900m far from shore. Do you have any further suggestions, or is it better I send you the project to give a look at? Thank you, once again. Amelia
  13. Hello. I am experiencing some instabilities while running BOUSS-2d on 3500*2300 (m) grid with 10*10 (m) cells. I've managed to make a successful run with a test: small duration (400s). When I set the model to run for longer periods (1700s - still below the recommended duration), the model generates the aforementioned instabilities. I have managed to select a time window for the animation that allowed me to see what happened: the model was working fine, and then it appears a huge burst near one of the extremities of the wavemaker, stopping the model. Trying to solve this, I lowered the time ste
  14. amy

    Modifying a mesh

    Hi, In my case, I am calibrating a model (ADCIRC) using a mesh, wich does not include a breakwater because I am using bathymetry, WSE and velocity data aquired before building the breakwater. Then, I want to use the calibrated model, with exactly the same mesh, except including modifications just to account the breakwater, for a later simulation. Is there other option than the 3rd one you mentioned? I am cheking your Lesson 4 "ADCIRC Mesh Editing and Parameters", however it seems not to work in my case, because the breakwater (island). Thanks. Amy
  15. Hi, I am using RMA2 in SMS 11.0.03 for simulating a flood in a river/ estuary. I am facing two problems: 1- In the calibration process, I would like to simulate during 12 days, including 1 spring tide and 1 neap tide. I go from 6m to 2.99m (first value of the tide, starting with neap tide) using the steering and then I use that hotstart for the unsteady simulation (with wet/dry option). The problem is that the simulation allways stop after simulating the first 6 days, i.e., when starting the spring tide. I verifyed that I have abrupt high velocity values in a sand bank (1 or 2 nodes) and beca
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