Korean Journal of Remote Sensing (대한원격탐사학회지)

Korean Society of Remote Sensing (대한원격탐사학회)
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A Semi-empirical Model for Polarimetric Radar Backscattering from Bare Soil Surfaces

  • Oh, Yi-Sok (Department of Radio Science and Communication Engineering, Hong-Ik University)
  • Published : 2001.06.01
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Abstract

A semi-empirical polarimetric backscattering model for bare soil surfaces is presented. Based on measurements by using polarimetric scatterometers and the JPL AirSAR, as well as the theoretical models, the backscattering coefficints $\sigma$$^0_w$, $\sigma$$^0_{hh}$ and $\sigma$$^0_{vh}$, and the parameters of the copolarized phase-difference probability density function, namely the degree of correlation $\alpha$ and the copolarized-phase-difference $\zeta$, are modeled empirically in terms of the volumetric soil moisture content m$_v$ and the surface roughness parameters $k_s$ and $k_l$, where k=2$\pi$f/c, s is the rms height and l is the correlation length.

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References

  1. Microwave Remote Sensing, Active and Passive v.2 F.T. Ulaby;M.K. Moore;A.K.Fung
  2. IEEE Trans. Geosci. Remote Sensing v.30 Backscattering from a randomly rough dielectric surface A.K. Fung;Z. Li;K.S. Chen
  3. Microwave Scattering and Emission Models and Their Applications A.K. Fung
  4. IEEE Trans. Geosci. Remote Sensing v.30 An empirical model and an inversion technique for radar scattering from bare soil surfaces Y. Oh;K. Sarabandi;F.T. Ulaby
  5. IEEE Trans. Geosci. Remote Sensing v.33 Measuring soil moisture with imaging radar P.C. Dubois;J. van Zyl;E.T. Engman
  6. Proc. of IEEE Geosci. Remote Sensing Symp. Polarimetric radar measurement of bare soil surfaces at microwave frequencies K. Sarabandi;Y. Oh;F.T. Ulaby
  7. Radio Sci. v.27 Derivation of phase statistics of distributed targets from the Mueller matrix K. Sarabandi
  8. IEE Proc.-F v.139 no.2 Statistical properties of the Mueller matrix of distributed targets F.T. Ulaby;K. Sarabandi;A. Nashashibi
  9. IEEE Trans. Geosci. Remote Sensing v.37 Multitemporal C- and L-band polarimetric signatures of crops H. Skriver;M.T. Svendson;A.G. Thompsen
  10. Radar Polarimetry for Geoscience Applications F.T. Ulaby;C. Elachi
  11. IEEE Trans. Antennaa Propagat. v.40 Measurement and calibration of differential Mueller Matrix of distributed targets K. Sarabandi;Y. Oh;F.T. Ulaby
  12. Understanding Synthetic Aperture Radar Images C. Oliver;S. Quegan
  13. IEEE Trans. Geosci. Remote Sensing v.32 Cross-calibration experiment of JPL AIRSAR and Truck-mounted polarimetric scatterometer K. Sarabandi;L. Pierce;Y. Oh;M.C. Dobson;F.T. Ulaby;A. Freeman;P. Dubois
  14. IEEE Trans. Geosci. Remote Sensing v.36 Condition for precise measurement of soil surface roughness Y. Oh;Y.C. Kay
  15. Int. Geoscience and Remote Snsing Symp. (IGARSS2000) Retrieval of the Effective Soil Moisture Contents as a Ground Truth from Natural Soil Surfaces Y. Oh
  16. IEEE Trans. Geosci. Remote Sensing v.38 Sensitivity to soil moisture by active and passive microwave sensors Y. Du;F.T. Ulaby;M.C. Dobson
  17. IEEE Trans. Geosci. Remote Sensing v.34 no.2 A numerical simulation of scattering from one-dimensional inhomogeneous dielectric random surfaces K. Sarabandi;Y. Oh;F.T. Ulaby