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 Raphael (Raphael) posted on Wednesday, June 02, 2010 - 12:24 am
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Hi Tom
Thanks for all your answers.
I have now a question which can seem stupid. After running the programm with a lateral erosion rate of 10, I've obtained an elevdiff output file reveling a strong erosion in the bed and a high deposition on the riverbank.
I'd have predicted the opposite.
So, do the negative values in the elevdiff output file mean deposition?
I sent a mail to you with a printscreen of this file.
Hourly water discharges were : 4.4 ; 5.2 ; 8.5 ; 15.7 ; 27.3 ; 41.9 ; 36.0 ; 21.6 ; 18.2 ; 15.4 ; 13.1 ; 6.8 ; 4.4 [m3/s]
Thanks
Raphaël |
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Hi Raphael,
Your values show the opposite? Negative values (red) where the channel has been filled in, and green values on the bank (positive values) where there has been erosion? The +ve or -ve values are calculated by start DEM minus end DEM...
One thing to check - are you calculating shear stress (in the numerical tab) using velocity or bedlsope? (use velocity)
Tom |
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| Raphael (Raphael) posted on Wednesday, June 02, 2010 - 11:52 pm
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Obviously.
Thank you |
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