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In-situ measurement of dielectric parameter of soil at microwave frequencies

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Abstract

Knowledge of dielectric permittivity of the soil provides direct measure of soil moisture content. A methodology to determine soil moisture based on the reflection coefficient measurement by a pseudo vector method using a horn antenna has been presented. To verify the efficacy of the method, measurements have been carried out at S, C & X band frequencies at two moisture levels and the corresponding emissivity parameters computed. Results so obtained are in good agreement with the already reported data and the direct moisture measurements. This method is expected to be of interest to agricultural scientists and to those involved in the application of remote sensing in crop studies.

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References

  1. Alex Z C and BehariJ (1996). Complex dielectric permittivity of soils as function of frequency, moisture and texture. Indian J. Pure and Applied Physics. 34:319–323.

  2. Alex Z C and Behari J (1998). Laboratory evaluation of emmissivity of soils. Int. J. Remote Sensing, 19: 1335–1340.

  3. Arcone S A Larson R W (1988). Single horn reflectometry for in situ dielectric measurements at microwave frequencies. IEEE Trans. Geosci. Remote Sensing, 26:89–92.

  4. Ghosh A., Behari J. and Pyne S. (1998). Dielectric parameters of dry and wet soil at 14, 89 Ghz. Indian J. Radio and Space Physics, 27:130–134.

  5. Hallikainen M T Ulaby, F T Dobson, M C El-reyes, M A and Wu, L K(1985). Microwave dielectric behavior of wet soil-Part I. Empirical models and experimental observations, IEEE. Trans. Geo Sci. Remote Sensing, GE-23:25–34.

  6. Sabburg, J.; Ball, J.A.R. and Hancock, N.H., (1997). Dielectric behavior of moist swelling clay at microwave frequencies. IEEE Trans. Geo Sci. Remote senisng 35-3, 784–787.

  7. Schmugge, T.J. (1983)., Remote sensing of soil moisture recent advances. IEEE Trans. Geo Sci. Remote Sensing, GE-21:336–344.

  8. Wang J R, O–Neill P E, Jackson T J and Engman E T (1983). Multi-frequency measurements of the effects on soil moisture soil texture and surface roughness. IEEE Trans. Geo Sci. Remote Sensing, Ge-21:44–50.

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Author information

Correspondence to Uma Shankar Mishra or Jitendra Behari.

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Cite this article

Mishra, U.S., Behari, J. In-situ measurement of dielectric parameter of soil at microwave frequencies. J Indian Soc Remote Sens 28, 1–7 (2000). https://doi.org/10.1007/BF02991856

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Keywords

  • Emissivity
  • Ground Plane
  • Microwave Frequency
  • Dielectric Parameter
  • Horn Antenna