Re : Runoff and percolation flow meter

[Antoine Findeling]

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Dear Dr Camilo L. T. Andrade

My PhD work may be of some help to you as far as runoff measurements are
concerned. I indeed developed a methodology to measure instantaneous runoff
flow
on small plots (20 m2) that was based on pressure sensors in drums. I send you
an extract of my manuscript written in french !!! If you find problems to
understand some details, please contact me. 
Best regards, Antoine Findeling

[Available on http://www.sowacs.com/runoff/RunoffFindeling.pdf
the first paragraph of which I append here..
Bruce]

>>
Ce chapitre est dÈdiÈ ý líanalyse des effets du semis direct avec paillis
de rÈsidus sur les phÈnomËnes
physiques impliquÈs dans le ruissellement : interception de la pluie par la
culture et par le paillis, infiltra-tion
de líeau dans le sol, rÈtention díeau en surface et Ècoulement du
ruissellement sur le sol. Le travail
a pour objectifs, díune part la comprÈhension et la quantification des
processus gouvernant le ruisselle-ment
en prÈsence de paillis, díautre part la formalisation de ces processus dans
un modËle simple ý base
physique. Ce modËle sera intÈgrÈ par la suite dans un modËle de
fonctionnement global (chapitre 6).



> >Date: Tue, 13 Nov 2001 18:33:38 GMT
> >From: owner-sowacs@aqua.ccwr.ac.za
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> >Subject: Runoff and percolation flow meter
> >Sender: owner-sowacs@aqua.ccwr.ac.za
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> >
> >Dear members,
> >
> >I would like to know if someone else has experience on automatically
> >measuring runoff flow from erosion parcels. We are currently collecting the
> >volume daily and manually measuring it. Of course the water comes dirty
> >with soil and maybe some debris and not all flow meter would work on this
> >situation. In addition any ideas to automatically measure percolation,
> >which is in our case a small flow rate.
> >
> >Regards,
> >
> >Camilo L. T. Andrade
> >Embrapa Maize and Sorghum
> >Rod. MG 424, Km 65, P.O. Box 151
> >35701-970 - Sete Lagoas, MG
> >Brazil
> >Tel +55 31 3779 1235
> >Fax +55 31 3779 1088

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Antoine Findeling
CIRAD, Laboratoire Solemi - TA 40/01 - Avenue Agropolis
34398 Montpellier Cedex 5 - France
Tel. : 04.67.61.71.72 / Fax : 04.67.61.56.42
Tel. personnel : 04.67.58.32.72
http://www.cirad.fr/
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