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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 Elimoel, We have tried to use two different brands of TDR, (Trime and Moisture Point) in heavy clays. Simply put, they don't work due to the high DC conductivity of the soil. (There is no way that I am going to calibrate every TDR installation. I'll just get out my trusty neutron probe.) If someone could get a TDR to give reasonable numbers in heavy clay, I for one would consider it a valuable contribution. Glenn Brown Associate Professor Biosystems Engineering Oklahoma State University Stillwater, OK 74078 (405) 744-8425 gbrown@okstate.edu -----Original Message----- From: owner-sowacs@aqua.ccwr.ac.za <owner-sowacs@aqua.ccwr.ac.za> To: gbrown@ceat.okstate.edu <gbrown@ceat.okstate.edu> Date: Tuesday, April 11, 2000 4:25 PM Subject: Time domain reflectometry areas of research. >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 Sowacsers, > >I have been reviewing the literature on TDR >in an attempt to determine the most relevant problems in this area >currently in need of solving, in the opinion of soil scientists >and also in the opinion of TDR equipment manufacturers. > >I would greatly appreciate any opinion/insight anyone in this list wish >to offer, regarding research needed in this area. > >I thank you all for taking time to read this request, and I will be >grateful for your response. > >Elimoel Elias >MSc Student (Soil Physics), BSc (Physics) >CENA/USP >Laboratorio de Fisica do Solo >Caixa Postal 96, Piracicaba, SP >13400-970 >Brazil >Tel/Fax: (55) (19) 434-0021 >e-mail: elielias@cena.usp.br >Website: http://www.freeyellow.com/members8/elimoel/elimoel.html > > > >