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Found 11 results

  1. Greeting, I will like to know how GSSHA handles the variable stage (water surface elevation) boundary conditions. Does the GSSHA water depth results for a cell are being forced with this overland flow boundary condition if the feature point is located within the same cell or the boundary condition is being applied at the cell and GSSHA is allow to compute the hydrodynamics for this cell? In other words, does the GSSHA water depth results will be identical to the boundary condition applied at the same cell. Also, what does GSSHA does between the variable stage overland boundary
  2. I am having a problem with my WMS 10.1.17 where when I run the CleanDam tool and accept changes, but the resultant grid still has depressions. It isn't readily apparent until I run a GSSHA simulation and look at the ponding. When I turn on digital dams in display properties I get no display of digital dams, however when I look at the flow directions with my depth grid, I can plainly see all four arrows pointing inward and a pond. I turn on elevations display values which confirms the flow directions honor the elevation file. I have tried running CleanDam externally from WMS as well with no
  3. I'm attempting to model a small basin (~0.2 sq mi) using a long-term simulation. I can get the model to run without errors or warnings, but some of the model results are counter-intuitive. So I'd like to verify if I've set up my model correctly and throw out a couple concerns/questions that some of you might be able to help me out with. Some quick background about my model setup: I'm using a single rain gauge located very near the basin boundary, defined using a .gag file with hourly data for the duration of November 2009. I've compiled WES format hydrometeorological data file that also g
  4. Hello everybody, I'm trying to run long-term simulation but it falls down very quickly. I suppose that the problem can be in my precipitation data file (.gag) as the last message concerns the precipitation data. Is there anyone who could confirm that to me? I attach the printscreen. The .gag file can be found at /data/files/osobni%20stranky/Vaclav%20David/model_data20180222_6_cont_prec.gag THanx in advance for any advice. Vaclav David
  5. Attached picture is from the GSSHA long-term runoff simulation summary file. Although the first rainfall event starts on 07/14/2013 at 15:00, the summary file writes Hydrometeorology (hmet) data began on 07/15/2013 at 2:00. Is this delay normal, shouldn't both rainfall and hmet data start on same time? Seaworth06.txt
  6. For long term simulation in GSSHA, where can we download direct and global radiation? I downloaded other hydrometeorology parameters (Pressure, Sky Cover, Wind Speed and Temperature) from NCDC website (http://gis.ncdc.noaa.gov/map/viewer/#app=cdo). Relative Humidity was estimated based on dew point and average temperature using this formula: RH: =100*(EXP((17.625*TD)/(243.04+TD))/EXP((17.625*T)/(243.04+T))) Is there any other recommended method for Relative Humidity estimation?
  7. There is still time to register for the training course "Hydrologic Modelling with GSSHA and WMS" June 18-21, 2013 in Provo, Utah. For more information, see: http://www.aquaveo.com/gssha_training_provo In this course, we will cover all aspects of GSSHA modeling, from setting up a basic model to setting up and running models with overland and stream boundary conditions. Visit the web page for more information and to register. We hope you can make it to this interesting course. Thanks, Chris
  8. Is there a way to use a HecRAS geometry file or an *.idx cross section database file to populate the cross sections in stream arcs for GSSHA? Thanks!
  9. GSSHA needs observed peak and volume flow data to compare calibration runs for a closeness of fit. If an observed hydrograph has multiple peaks for a single event, how will automatic calibration in GSSHA deal with that? Also, does automatic calibration in GSSHA tends to match observed peak and volume only, but not the shape of hydrograph?
  10. I was exploring WMS-GSSHA results visualization and I have a question: Is it possible to show aggregated sediment loss on the map for a longterm simulation ? now I can only view one time step at a time , and I was wondering if I can also view sediment lost for example for the whole month ..using color ramp display on the map.
  11. Hello everyone, I am new to WMS. I would like to know if it is possible to use WMS to perform real-time simulations. Both radar and gauge rainfalls are avaialbe every 10 mins. Once models (HMS, RAS, or GSSHA) are set up, I would like to have an automatic process. Thank you
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