Backscattering Coefficients, Coherent Reflectivities, and Emissivities of Randomly Rough Soil Surfaces at L-Band for SMAP Applications Based on Numerical Solutions of Maxwell Equations in Three-Dimensional Simulations

2010 ◽  
Vol 48 (6) ◽  
pp. 2557-2568 ◽  
Author(s):  
Shaowu Huang ◽  
Leung Tsang ◽  
Eni G Njoku ◽  
Kuan Shan Chan
Keyword(s):  
Maxwell Equations ◽  
Numerical Solutions ◽  
Three Dimensional ◽  
L Band ◽  
Three Dimensional Simulations

scholarly journals ROTATING ELECTROMAGNETIC WAVES IN TOROID-SHAPED REGIONS

2010 ◽  
Vol 21 (01) ◽  
pp. 11-32 ◽  
Author(s):  
CLAUDIA CHINOSI ◽  
LUCIA DELLA CROCE ◽  
DANIELE FUNARO
Keyword(s):  
Fluid Dynamics ◽  
Electromagnetic Waves ◽  
Maxwell Equations ◽  
Numerical Solutions ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Angular Speed ◽  
Vortex Rings ◽  
Bounded Region ◽  
Three Dimensional Space

Electromagnetic waves, solving the full set of Maxwell equations in vacuum, are numerically computed. These waves occupy a fixed bounded region of the three-dimensional space, topologically equivalent to a toroid. Thus, their fluid dynamics analogs are vortex rings. An analysis of the shape of the sections of the rings, depending on the angular speed of rotation and the major diameter, is carried out. Successively, spherical electromagnetic vortex rings of Hill's type are taken into consideration. For some interesting peculiar configurations, explicit numerical solutions are exhibited.

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