Prarxol 0 Posted August 10, 2010 Report Share Posted August 10, 2010 Hello All,I am using GSSHA model in WMS. I am using uniform rain in my model. I could see the stream depth and stream flow. BUT THE HYDROGRAHP SHOWS NO DISCHARGE. I have copied the some portion of summary file.Can you tell me what will be the possible reason of not showing the discharge in hydrograph?Thanks,Prarxol***************************************************************SIMULATION TOTALSGLOBAL MASS BALANCE CALCULATIONS All volumes are in cubic meters Initial volume on surface= 0.00 Initial volume in channels= 0.00 Initial volume in soil over simple soil depth 287118750.00 Initial volume in groundwater= 0.00 Final volume on surface= 267122670.50Final volume in channels= 126276747.94Final volume in soil over simple soil depth 824422917.20Final volume in groundwater= 0.00Final volume of snow= 0.00Total amount of precip= 1993880206.37Total amount of interception= 0.00Total amount of infiltration= 1600422568.52Total amount of evaporation= 0.00Total direct evaporation= 0.00Total amount of exfiltration= 0.00Total downward flux from unsaturated zone= 1062620055.75Total flux of gw across bounds= 0.00Total overland point sources= 0.00Total channel point sources= 0.00Volume lost to specified slope boundary: 0.00Volume lost to specified head boundary: 0.00Volume gained from specified head boundary: 0.00Total lateral inflow into channels= 126276747.94Total amount of discharge= 0.00Mass balance error of surface components = 0.002439 percentOverall mass balance error = 0.024400 percentSimple soil moisture mass balance = 0.026402 percent **************************************************************************************** Quote Link to post Share on other sites
yacob 0 Posted August 10, 2010 Report Share Posted August 10, 2010 I am new to gssha but it seems to me that your .sum file is saying that all the water is either being stored in the surface/channels or has been infiltrated. Load your surface depth (.dep file) solution to your grid, contour it, and look for any depressions. With that amount of volume remaining on the surface it should be evident where all the water is pooling up. When you find it you can edit your elevations to move the water. Also did you clean digital dams before you ran the model? Hope this helps. Quote Link to post Share on other sites
yacob 0 Posted August 10, 2010 Report Share Posted August 10, 2010 I am new to gssha but it seems to me that your .sum file is saying that all the water is either being stored in the surface/channels or has been infiltrated. Load your surface depth (.dep file) solution to your grid, contour it, and look for any depressions. With that amount of volume remaining on the surface it should be evident where all the water is pooling up. When you find it you can edit your elevations to move the water. Also did you clean digital dams before you ran the model? Hope this helps.On second thought, how long did you run it? You may have not given it enough time for the water to runoff. Try to increase the Total time and see if that helps. Quote Link to post Share on other sites
Erik McCarthy 6 Posted August 10, 2010 Report Share Posted August 10, 2010 I would check out what yacob suggested and, if possible we would like to take a look at your files to see why you are not getting a hydrograph. You can just email it to support@aquaveo.com Quote Link to post Share on other sites
Prarxol 0 Posted August 10, 2010 Author Report Share Posted August 10, 2010 I am new to gssha but it seems to me that your .sum file is saying that all the water is either being stored in the surface/channels or has been infiltrated. Load your surface depth (.dep file) solution to your grid, contour it, and look for any depressions. With that amount of volume remaining on the surface it should be evident where all the water is pooling up. When you find it you can edit your elevations to move the water. Also did you clean digital dams before you ran the model? Hope this helps.Yacob and Erik,I contoured the surface depth file and i didnt find any depression (please have a look on attached pictures). No depth shown for the end or outlet point. I guess there is negative slope at the end portion.I have clean digital dams (I have used hydrological modelling wizard. Last step of this wizard cleans the digital dam.)Is it possible to create hydrograph at section of stream without re-running the model?And is it possible to assign multiple outlet point so that we can view the separate hydrograph? (I have tried. I delineate multiple watershed. But could not run the model) Thanks,Prarxol Quote Link to post Share on other sites
cameronj 1 Posted August 11, 2010 Report Share Posted August 11, 2010 Yacob and Erik,I contoured the surface depth file and i didnt find any depression (please have a look on attached pictures). No depth shown for the end or outlet point. I guess there is negative slope at the end portion.I have clean digital dams (I have used hydrological modelling wizard. Last step of this wizard cleans the digital dam.)Is it possible to create hydrograph at section of stream without re-running the model?And is it possible to assign multiple outlet point so that we can view the separate hydrograph? (I have tried. I delineate multiple watershed. But could not run the model) Thanks,PrarxolYou can not create a hydrograph at a section of a stream without re-running the model.You can have multiple outlet points each with a hydrograph, you just have to turn on the hydrographs (I think you double click on the outlet and check a box or change a pull down menu). I would follow the tutorials and see how they set it up. Looking at the following test case may help: http://wmstutorials.aquaveo.com/Park_City_Tutorials.zipCameron Quote Link to post Share on other sites
Prarxol 0 Posted August 11, 2010 Author Report Share Posted August 11, 2010 You can not create a hydrograph at a section of a stream without re-running the model.You can have multiple outlet points each with a hydrograph, you just have to turn on the hydrographs (I think you double click on the outlet and check a box or change a pull down menu). I would follow the tutorials and see how they set it up. Looking at the following test case may help: http://wmstutorials.aquaveo.com/Park_City_Tutorials.zipCameronCameron,Thanks for the information. Regards,Prarxol Quote Link to post Share on other sites
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