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NOTE: To get off this list, send email to majordomo@aqua.ccwr.ac.za with the body of the message containing the line: unsubscribe sowacs Dear Sean, SDEC-France manufactures a such a system, based on the "WIND" method. It has been designed by the french national agronomic institute (INRA), Avignon unit, Soil Science Dept. It is a method based on the drying of a saturated non disturbed soil sample, in where a placed 6 micro-tensiometers at differeznt depths. The average soil water content is followed as well thanks to a sclale that measures the weight of the system. Thus, we have the data of h(z,t) and THETAavg(t). Using the WIND algorhithm, the Van Genuchten model and the Darcy's law, we finally obtain the curves H(Theta), K(Theta) and K(h). You can download our short form catalogue from SDEC-France website, at: http://www.sdec-france.com For further informations, we can supply you all necessary litterature on the WIND method and on our "WIND" system. Best regards, RaphaÎl Peno-Mazzarino, Agronomist engineer, Agronomy and Environment dept. owner-sowacs@aqua.ccwr.ac.za a Ècrit: > Hello, > > I am looking for information about commercially > available devices which are capable of estimating the > unsaturated hydraulic properties of unconsolidated > soils and sediments. Specifically, the properties > estimated by the device would be: (1) the soil water > retention curve [plot of water potential versus water > content], and (2) the hydraulic conductivity as a > function of water content and/or water potential. > > What's out there? Who is using it? If not, does > anyone else need this kind of device? > > Thanks! > > Sean Kenney > (508) 971-0904 > seantkenney@yahoo.com > -- SDEC France - Scientific Instrumentation - Z.I de la Gare - 37 310 Reignac sur Indre France (Europe) TÈl : 33 2 47 94 10 00 / Fax : 33 2 47 94 17 13 Check our WEB site : http://www.sdec-france.com and have a nice day measuring water potentials in the fields