RE: neutron probe for measurement of ice content?

[Kevin O'Connor]

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Joachim,

You may want to consider using TDR....see the following papers...

Spaans, E.J.A. and J.M. Baker.  1995.  Examining the Use of Time Domain
Reflectometry for Measuring Liquid Water Content in Frozen Soil.  Water
Resources Research, Vol. 31, No. 12, pp. 2917-2925.

Baker, T.H.W., J. L. Davis, H. N. Hayhoe, and G. C. Topp.  1982.  Locating
the Frozen-Unfrozen Interface in Soils Using Time Domain Reflectometry.
Can. Geotech. Jour., Vol. 19, pp. 511-517.

Smith, M.W., and A.R. Tice.  1988.  Measurement of the Unfrozen Water
Content of Soils: Comparison of NMR and TDR Methods.  U.S. Army CRREL,
Report 88-18, October, 11p.

Delaney, A. J. and S. A. Arcone.  1986.  A Large-Size Coaxial Waveguide Time
Domain Reflectometry Unit for Field Use.  IEEE Transactions on Geoscience
and Remote Sensing, Vol. GE-22, No. 5, Sept. pp. 428-431.

Stein, J. and D. L. Kane.  1983.  Monitoring the Unfrozen Water Content of
Soil and Snow Using Time Domain Reflectometry.  Water Resources Research,
Vol. 19, No. 6, Dec., pp. 1573-1584.

van Loon, W.K.P., E. Perfect, P. H. Groenevelt, and B. D. Kay.  1991.
Application of Dispersion Theory to Time Domain Reflectometry.  Transport in
Porous Media, Vol 6, pp 391-406.

Kevin O'Connor
GeoTDR, Inc
720 Greencrest Drive
Westerville, OH  43081
www.geotdr.com

> -----Original Message-----
> From:	owner-sowacs@aqua.ccwr.ac.za [SMTP:owner-sowacs@aqua.ccwr.ac.za]
> Sent:	Sunday, June 03, 2001 3:12 AM
> Subject:	neutron probe for measurement of ice content? 
> 
> NOTE:  To get off this list, send email to majordomo@aqua.ccwr.ac.za
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> 
> > Date: Thu, 31 May 2001 20:01:06 +0200
> > -----
> > Dear list-members,
> > we want to measure ice-content of soil in a perma frost. A neutrone 
> > probe seems to be suitable but there are no manufactures in 
> > Germany. Can anybody provide me an address?
> > Best regards, Joachim M¸ller 
> > 
> > ______________________________________________________
> > 
> > Priv.Doz.Dr.habil. Joachim Mueller
> > Hohenheim University
> > Institute of Agricultural Engineering in the Tropics and Subtropics
> > Garbenstrasse 9
> > D-70599 Stuttgart
> > Germany
> > 
> > Voice:    xx49 711 459 3106
> > Fax:       xx49 711 459 3298
> > e-mail:   mueller@ats.uni-hohenheim.de 
> > ______________________________________________________
> > 
> > 
>