The Effect of Bulk Density on Emission Behavior of Soil at Microwave Frequencies
Joint Authors
Source
International Journal of Microwave Science and Technology
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-01-05
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Dielectric constant and dielectric loss (ε′ and ε″) of different soil samples with bulk densities varying from 1.3 to 2.0 gm/cm3 are determined at a single microwave frequency 9.78 GHz and at temperature 37.0°C.
Different bulk densities of same soil are achieved by filling the wave guide cell with an equal volume but a different mass of soil.
Further, ε′ and ε″ of these soil samples are also estimated by semiempirical model and compared with the experimental results.
The values of ε′ and ε″ increase as bulk density of the soil increases.
In view of microwave remote sensing, the Fresnel reflectivity of soil is computed from the knowledge of the complex dielectric constant and the surface boundary condition.
Using Kirchhoff’s reciprocity theorem the microwave emissivity is estimated from Fresnel reflectivity of the surface.
It is observed that the microwave emission from the soil surface inhibits as bulk density of soil increases.
Further, the roughness of soil surface has been taken into consideration in the emissivity computation and observed that the emissivity increases with increasing roughness of the soil surface.
American Psychological Association (APA)
Gupta, V. K.& Jangid, R. A.. 2012. The Effect of Bulk Density on Emission Behavior of Soil at Microwave Frequencies. International Journal of Microwave Science and Technology،Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-450623
Modern Language Association (MLA)
Gupta, V. K.& Jangid, R. A.. The Effect of Bulk Density on Emission Behavior of Soil at Microwave Frequencies. International Journal of Microwave Science and Technology No. 2011 (2011), pp.1-6.
https://search.emarefa.net/detail/BIM-450623
American Medical Association (AMA)
Gupta, V. K.& Jangid, R. A.. The Effect of Bulk Density on Emission Behavior of Soil at Microwave Frequencies. International Journal of Microwave Science and Technology. 2012. Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-450623
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-450623