Vol. 95
Latest Volume
All Volumes
PIER 176 [2023] PIER 175 [2022] PIER 174 [2022] PIER 173 [2022] PIER 172 [2021] PIER 171 [2021] PIER 170 [2021] PIER 169 [2020] PIER 168 [2020] PIER 167 [2020] PIER 166 [2019] PIER 165 [2019] PIER 164 [2019] PIER 163 [2018] PIER 162 [2018] PIER 161 [2018] PIER 160 [2017] PIER 159 [2017] PIER 158 [2017] PIER 157 [2016] PIER 156 [2016] PIER 155 [2016] PIER 154 [2015] PIER 153 [2015] PIER 152 [2015] PIER 151 [2015] PIER 150 [2015] PIER 149 [2014] PIER 148 [2014] PIER 147 [2014] PIER 146 [2014] PIER 145 [2014] PIER 144 [2014] PIER 143 [2013] PIER 142 [2013] PIER 141 [2013] PIER 140 [2013] PIER 139 [2013] PIER 138 [2013] PIER 137 [2013] PIER 136 [2013] PIER 135 [2013] PIER 134 [2013] PIER 133 [2013] PIER 132 [2012] PIER 131 [2012] PIER 130 [2012] PIER 129 [2012] PIER 128 [2012] PIER 127 [2012] PIER 126 [2012] PIER 125 [2012] PIER 124 [2012] PIER 123 [2012] PIER 122 [2012] PIER 121 [2011] PIER 120 [2011] PIER 119 [2011] PIER 118 [2011] PIER 117 [2011] PIER 116 [2011] PIER 115 [2011] PIER 114 [2011] PIER 113 [2011] PIER 112 [2011] PIER 111 [2011] PIER 110 [2010] PIER 109 [2010] PIER 108 [2010] PIER 107 [2010] PIER 106 [2010] PIER 105 [2010] PIER 104 [2010] PIER 103 [2010] PIER 102 [2010] PIER 101 [2010] PIER 100 [2010] PIER 99 [2009] PIER 98 [2009] PIER 97 [2009] PIER 96 [2009] PIER 95 [2009] PIER 94 [2009] PIER 93 [2009] PIER 92 [2009] PIER 91 [2009] PIER 90 [2009] PIER 89 [2009] PIER 88 [2008] PIER 87 [2008] PIER 86 [2008] PIER 85 [2008] PIER 84 [2008] PIER 83 [2008] PIER 82 [2008] PIER 81 [2008] PIER 80 [2008] PIER 79 [2008] PIER 78 [2008] PIER 77 [2007] PIER 76 [2007] PIER 75 [2007] PIER 74 [2007] PIER 73 [2007] PIER 72 [2007] PIER 71 [2007] PIER 70 [2007] PIER 69 [2007] PIER 68 [2007] PIER 67 [2007] PIER 66 [2006] PIER 65 [2006] PIER 64 [2006] PIER 63 [2006] PIER 62 [2006] PIER 61 [2006] PIER 60 [2006] PIER 59 [2006] PIER 58 [2006] PIER 57 [2006] PIER 56 [2006] PIER 55 [2005] PIER 54 [2005] PIER 53 [2005] PIER 52 [2005] PIER 51 [2005] PIER 50 [2005] PIER 49 [2004] PIER 48 [2004] PIER 47 [2004] PIER 46 [2004] PIER 45 [2004] PIER 44 [2004] PIER 43 [2003] PIER 42 [2003] PIER 41 [2003] PIER 40 [2003] PIER 39 [2003] PIER 38 [2002] PIER 37 [2002] PIER 36 [2002] PIER 35 [2002] PIER 34 [2001] PIER 33 [2001] PIER 32 [2001] PIER 31 [2001] PIER 30 [2001] PIER 29 [2000] PIER 28 [2000] PIER 27 [2000] PIER 26 [2000] PIER 25 [2000] PIER 24 [1999] PIER 23 [1999] PIER 22 [1999] PIER 21 [1999] PIER 20 [1998] PIER 19 [1998] PIER 18 [1998] PIER 17 [1997] PIER 16 [1997] PIER 15 [1997] PIER 14 [1996] PIER 13 [1996] PIER 12 [1996] PIER 11 [1995] PIER 10 [1995] PIER 09 [1994] PIER 08 [1994] PIER 07 [1993] PIER 06 [1992] PIER 05 [1991] PIER 04 [1991] PIER 03 [1990] PIER 02 [1990] PIER 01 [1989]
2009-08-20
Electromagnetic Scattering by Rough Surfaces with Large Heights and Slopes with Applications to Microwave Remote Sensing of Rough Surface Over Layered Media
By
Progress In Electromagnetics Research, Vol. 95, 199-218, 2009
Abstract
In this paper, we study the bistatic reflection and transmission properties of random rough surface with large slope and large height. Method of Moment (MOM) is used to solve the surface integral equations for 2D rough surface scattering problem. The modeled rough surfaces are similar to random rectangular grating, so that there are large slopes on the surface. The motivation of the study is to analyze scattering by sastrugi surface in Polar Regions. The ridges on the sastrugi surface have heights of about 20 cm. In microwave remote sensing of land at 5 GHz, 10 GHz, 19 GHz and 37 GHz, these heights are larger than wavelength. Next, we consider the scattering problem of the sastrugi rough surface over multi-layered snow. The bistatic reflection and transmission coefficients from MOM solutions are used as the boundary conditions for multi-layered radiative transfer equations. The radiative transfer equations are solved and the reflectivities are calculated. Numerical results are illustrated as a function of roughness and multi-layered parameters. We demonstrate that rough surface of sastugi, when interactions with layered media, causes increase in reflectivity and the decrease in emissivity. The increase of reflectivity can be attributed to the fact that rough surface with large slope facilitates large angle transmission. The large angle transmission results in increase of subsurface reflection and the possibility of total internal reflection in layered media below the rough surface.
Citation
Ding Liang Peng Xu Leung Tsang Zhiqian Gui Kunshan Chen , "Electromagnetic Scattering by Rough Surfaces with Large Heights and Slopes with Applications to Microwave Remote Sensing of Rough Surface Over Layered Media," Progress In Electromagnetics Research, Vol. 95, 199-218, 2009.
doi:10.2528/PIER09071413
http://www.jpier.org/PIER/pier.php?paper=09071413
References

1. Albert, M. R. and R. Hawley, "Seasonal changes in snow surface roughness characteristics at summit, Greenland: Implications for snow and firn ventilation," Ann. Glaciol., Vol. 35, No. 1, 510-514, Jan. 2002.
doi:10.3189/172756402781816591

2. Li, L., P. Gaiser, M. R. Albert, D. G. Long, and E. M. Twarog, "WindSat passive microwave polarimetric signatures of the Greenland ice sheet," IEEE Trans. on Geoscience and Remote Sensing, Vol. 46, No. 9, 2622-2631, Sep. 2008.
doi:10.1109/TGRS.2008.917727

3. Tsang, L., P. Xu, and K. S. Chen, "Third and fourth stokes parameters in polarimetric passive microwave remote sensing of rough surfaces over layered media," Microwave and Optical Technology Letters, Vol. 50, No. 12, 3063-3069, Dec. 2008.
doi:10.1002/mop.23892

4. Tsang, L., D. Chen, P. Xu, Q. Li, and V. Jandhyala, "Wave scattering with UV multi-level partitioning methed part I: 2D problem of PEC surface scattering," Radio Science, Vol. 39, No. RS5010, 2004.

5. Domine, F., A. Cabanes, and L. Legagneus, "Structure, microphysics and surface area of the Arctic snowpack near Alert, during the ALERT2000 campaign," Atmospheric Environment, Vol. 36, 2753-2765, 2002.
doi:10.1016/S1352-2310(02)00108-5

6. Lytle, V. I. and K. C. Jezek, "Dielectric permittivity and scattering measurements of Greenland firn at 26.5-40 GHz," IEEE Trans. on Geoscience and Remote Sensing, Vol. 32, No. 2, 290-295, March 1994.
doi:10.1109/TGRS.2006.883458

7. Xu, P. and L. Tsang, "Bistatic scattering and emissivities of lossy dielectric surfaces with exponential correlation functions," IEEE Trans. on Geoscience and Remote Sensing, Vol. 45, No. 1, 62-72, Jan. 2007.