@article{PAR00007907,
  title = {{E}valuation of a numerical modeling approach based on the finite-element method for calculating the rough surface scattering and mission of a soil layer},
  author = {{L}awrence, {H}. and {D}emontoux, {F}. and {W}igneron, {J}. {P}. and {P}aillou, {P}. and {W}u, {T}. {D}. and {K}err, {Y}ann},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e evaluate a new 3-{D} numerical modeling approach for calculating the rough-surface scattering and emission of a soil layer. {T}he approach relies on the use of {A}nsoft's numerical computation software {H}igh-{F}requency {S}tructure {S}imulator, which solves {M}axwell's equations directly using the finite-element method. {T}he interest of this approach is that it can be easily extended to studies of heterogeneous media. {H}owever, before being applied in this way, it must first be validated for the rough-surface case. {I}n this letter, we perform this validation by comparing the results of rough-surface scattering and emission with the results of the method of moments ({M}o{M}) for a range of different roughness and permittivity conditions and with both {G}aussian and exponential rough-surface autocorrelation functions. {F}or the scattering case, we obtain results that are in agreement with the {M}o{M} to within approximately 1-3 d{B} for angles up to and including 40 degrees and 2-4 d{B} for angles from 50 degrees to 70 degrees. {A}greement for emissivity is to within 3.2 and 3.6 {K} for low and high roughness conditions, respectively. {W}e then illustrate the application of the new approach by calculating the emission of a two-layer system with rough surfaces, representing the soil-litter system in forests.},
  keywords = {{E}lectromagnetic scattering by rough surfaces ; microwave emissivity ; numerical simulation},
  booktitle = {},
  journal = {{I}eee {G}eoscience and {R}emote {S}ensing {L}etters},
  volume = {8},
  numero = {5},
  pages = {953--957},
  ISSN = {1545-598{X}},
  year = {2011},
  DOI = {10.1109/lgrs.2011.2131633},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00007907},
}