Effect of Soil Surface Roughness on Microwave Emission Amimul Ehsan Electrical Engineering and Computer Science Department, University of Kansas December.

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Effect of Soil Surface Roughness on Microwave Emission Amimul Ehsan Electrical Engineering and Computer Science Department, University of Kansas December 09, 2014

2 Outlines

Soil Surface Roughness 3  Rough surface corresponds to Gaussian distribution. Scattered intensity with roughness parameter  Gross effect on surface roughness and emissivity where,  Small perturbation model

Roughness Effect on Emissivity 4 Fig. Variation of horizontal rough surface emissivity with roughness  Horizontal and Vertical emissivity using rough surface model Fig. Variation of verticall rough surface emissivity with roughness

5  Emissivity of moisture soil with roughness Fig. Emissivity of rough surface soil w.r.t the percentage of soil moisture Soil Moisture on Emissivity

6  Backscattering coefficient against the roughness parameter Fig. Representation of backscattering by varying the roughness parameter Roughness Effect on Backscattering

References 7 [1] F. T. Ulaby,, Microwave Remote Sensing Active and Passive., 1986, vol. 1. [2] F. T. Ulaby, R. K. Moore, and A. K. Fung, 1986, Microwave Remote Sensing Active and Passive. Dedham, MA: Artech House, 1986, vol. 3. [3] Engman, Edwin T.; Wang, J.R., "Evaluating Roughness Models of Radar Backscatter," Geoscience and Remote Sensing, IEEE Transactions on, vol.GE-25, no.6, pp.709,713, Nov [4] V. K. Gupta and R. A. Jangid, “The Effect of Bulk Density on Emission Behavior of Soil at Microwave Frequencies,” International Journal of Microwave Science and Technology, vol. 2011, Article ID , 6 pages, [5] Choudhury, B. J., T. J. Schmugge, A. Chang, and R. W. Newton (1979), Effect of surface roughness on the microwave emission from soils, J. Geophys. Res., 84(C9), 5699–5706, [6] M. J. Herold, Shi, and C.C. Schmullius. "Multi parameter airborne SAR remote sensing of soil moisture in agricultural areas". p In Proc. Int. Geosci. Remote Sense Symp.,Sydney, Australia. 913 July IEEE, N.J. Piscataway, [7] D.L. Evans, T.G. Farr and J. J. van Zyl, "Estimates of surface roughness derived from synthetic aperture radar (SAR) data, " IEEE Transactions on Geoscience and Remote Sensing, vol. 30, pp , 1992.