Investigation of dielectric spectra from moist soils during freezing-thawing processes
- 38 Downloads
A frequency spectrum of the complex dielectric permittivity of soils is measured in the range of frequencies from 0.5 to 15.0 GHz in the course of frost penetration and thawing. The phase transitions taking place during frost penetration and thawing are analyzed within the concept of the generalized refractive mixing dielectric model (GRMDM). Two types of water concurrently present in the soil are identified: bound and free water. Temperature dependences of the Debye model parameters for each type of water are given, and parameters of a dielectric spectroscopic model of frozen and thawed soils are found. The hysteresis phenomenon during the phase transition of the soil moisture is investigated.
KeywordsRemote Sensing Free Water Dielectric Permittivity Moist Soil Dielectric Spectrum
Unable to display preview. Download preview PDF.
- 3.V. L. Mironov, S. V. Savin, and R. D. Roo, in: Proc. IEEE International Geoscience and Remote Sensing Symposium (2007).Google Scholar
- 4.V. L. Mironov, S. A. Komarov, and V. N. Kleshchenko, in: Proc. IGARSS'05, Seoul, Korea (2005).Google Scholar
- 5.S. A. Komarov, V. L. Mironov, and Yu. I. Lukin, Izv. Vyssh. Uchebn. Zaved. Fis., No. 9 Suppl., 29–34 (2006).Google Scholar
- 6.B. V. Nekrasov, Fundamentals of General Chemistry [in Russian], 3rd edition, Vol. 1, Moscow, Khimiya (1973).Google Scholar
- 7.D. Eisenberg and W. Kauzman, The Structure and Properties of Water, Oxford University Press (1969).Google Scholar
- 8.G. N. Zatsepina, Physical Properties and Structure of Water [in Russian], Moscow, Moscow University Publishers (1987).Google Scholar
- 9.Ya. Yu. Akhadov, Dielectric Properties of Pure Liquids [in Russian], Moscow, Standards Publishers (1972).Google Scholar
- 10.T. Ulaby Fawwaz, K. Moore Richard, and K. Fung Adrian, Microwave Remote Sensing: Active and Passive. Vol. 3: From Theory to Applications, Massachusetts, Artech House, Inc., Dedham (1986).Google Scholar