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A model of the wind direction signature in the Stokes emission vector from the ocean surface at microwave frequencies
Camps Carmona, Adriano José; Reising, S. C.
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
This paper presents a model of the Stokes emission vector from the ocean surface. The ocean surface is described as an ensemble of facets with Cox and Munk's (1954) Gram-Charlier slope distribution. The study discusses the impact of different up-wind and cross-wind rms slopes, skewness, peakedness, foam cover models and atmospheric effects on the azimuthal variation of the Stokes vector, as well as the limitations of the model. Simulation results compare favorably, both in mean value and azimuthal dependence, with SSM/I data at 53° incidence angle and with JPL's WINDRAD measurements at incidence angles from 30° to 65°, and at wind speeds from 2.5 to 11 m/s.
Peer reviewed
Àrees temàtiques de la UPC::Enginyeria electrònica i telecomunicacions::Radiocomunicació i exploració electromagnètica::Teledetecció
Surface waves
Boundary layer (Meteorology)
Ocean-atmosphere interaction
electromagnetic wave polarisation
ocean waves
remote sensing
Gram-Charlier slope distribution
SSM/I data
Stokes emission vecto
Stokes vector
atmospheric effects
azimuthal dependence
azimuthal variation
foam cover models
mean value
microwave frequencies
ocean surface
rms slopes
Capa límit (Meteorologia)
Interacció oceà-atmosfera
Ones de superfície
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