TELEMAC-MASCARET Forum: Data assimilation in Telemac2D (1/1)

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TOPIC: Data assimilation in Telemac2D

Data assimilation in Telemac2D 9 years 7 months ago #16422

nguyenthong_BK	Dear all, I would like to use the technique of data assimilation (the elevation at some gauges, for exemple) in Telemac 2D, version v6p3. Could you tell me how I do? What does the variable and subroutine of telemac 2D I will use? Thank you very much for your help. Best regards Thong NGUYEN HCMUT, Viet Nam
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Data assimilation in Telemac2D 9 years 7 months ago #16434

jmhervouet

Hello Thong,

You can inspire from the example called "estimation". There a single friction coefficient is estimated after "measurements" which are in fact a previous computation. The program does 8 successive runs to find the friction that was used. This estimation procedure can work practically only on a steady state, where the results of all time steps are replaced by the last one, supposedly the converged value (otherwise there is too much data to store).

With best regards,

Jean-Michel Hervouet

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Data assimilation in Telemac2D 9 years 7 months ago #16439

nguyenthong_BK	Dear Mr. J. M. Hervouet; Thank you very much for your prompt response. Best regards Thong NGUYEN, HCMUT, Viet Nam
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