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TOPIC: How to set the spatial distribution of rainfall

How to set the spatial distribution of rainfall 4 years 4 months ago #36416

  • haozailao
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HELLO.
I want to use telemac-2D to run a simulation of urban flood. There is a hyetograph.txt in the pluie example. However, I don't know how to set the spatial distribution of rainfall.
What should I do?
Thanks in advance.
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How to set the spatial distribution of rainfall 4 years 4 months ago #36417

  • c.coulet
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Hi
You could have a look in the wind_txy example and adapt the fortran file for rain in a similar way it's done for wind..

Regards
Christophe
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How to set the spatial distribution of rainfall 4 years 4 months ago #36418

  • haozailao
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Thank you.I'll give it a try
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How to set the spatial distribution of rainfall 4 years 6 days ago #37196

  • annatrinh
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Does anybody have an example of modifying the wind subroutine to spatial und time-variable rainfall?

Many thanks in advanced!
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How to set the spatial distribution of rainfall 3 years 10 months ago #37594

  • annatrinh
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Sr for asking the same again, but I am still interested in this kind of file?
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How to set the spatial distribution of rainfall 3 years 10 months ago #37601

  • haozailao
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Hi
I solved my problem by add point source,I don't know whether is is what you want
Maybe you can see this paper
henry.baw.de/bitstream/handle/20.500.119...quence=1&isAllowed=y
Hope it help!
Kind regards
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How to set the spatial distribution of rainfall 3 years 8 months ago #37958

  • annatrinh
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Thanks for your suggestion. Unfortunately the paper doesn't show how to implement spatial varied rainfall.

Could you please share your example of adding spatial varied rainfall by using point source?

Thank you in advanced.
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How to set the spatial distribution of rainfall 3 years 8 months ago #37959

  • haozailao
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I'm sorry that maybe I can't help you.
I add point sources to to represent the flood.So actually i don't add any rainfall in telemac.
Kind regards
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How to set the spatial distribution of rainfall 3 years 8 months ago #37960

  • c.coulet
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Hi
Rainfall using sources point is not an efficient solution as the rainfall should be given at each point of the mesh so this means you will have a huge number of sources...
The best solution should be to generate a selafin file with the rainfall intensity spatially varying like you do for other parameter like topographie or friction coefficient.
Hope this helps
Christophe
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How to set the spatial distribution of rainfall 3 years 8 months ago #37961

  • annatrinh
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Thank you!
Thanks to your suggestion, I would create a selafin file contains the rainfall intensity vayring in space but also in time (different time steps). Then I modify the prosou_fv.f to read rainfall from that file.

Am I correct?
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