Discrete ordinate and Monte Carlo simulations for polarized radiative transfer in a coupled system consisting of two media with different refractive indices

Sommersten, E. R.; Lotsberg, Jon Kåre; Stamnes, Knut; Stamnes, Jakob J.

doi:10.1016/j.jqsrt.2009.10.021

Cited by 53 publications

(24 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[29] to verify the MC polarized radiative transfer model with consideration of Fresnel interface developed in this work. The simulation is performed for polarized radiative transfer in a plane-parallel medium composed of Rayleigh scattering atmosphere layer and water body.…”

Section: Resultsmentioning

confidence: 99%

“…Ota et al [28] developed a solution, based on the DO and matrix-operator methods, to the problem of vector radiative transfer in the coupled atmosphereocean system. Sommersten et al [29] presented an algorithm based on DO method for vector radiative transfer in a coupled system of atmosphere and ocean with different refractive indices, and compared the results by the DO method with those by the MC method. In the past two years, Garcia [30] investigated the vector radiative transfer in a multilayer medium with Fresnel boundaries or interfaces using DO method.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Polarized radiative transfer in an arbitrary multilayer semitransparent medium

Ben

Tan

2014

Appl. Opt.

View full text Add to dashboard Cite

Polarized radiative transfer in a multilayer system is an important problem and has wide applications in various fields. In this work, a Monte Carlo (MC) model is developed to simulate polarized radiative transfer in a semitransparent arbitrary multilayer medium with different refractive indices in each layer. Two kinds of polarization mechanisms are considered: scattering by particles and reflection and refraction at the Fresnel surfaces or interfaces. The MC method has an obvious superiority in that complex mathematical derivations can be avoided in solving the polarization by Fresnel reflection and refraction in an arbitrary multilayer system. We define the vector radiative transfer matrix (VRTM), which describes the polarization characteristics of radiative transfer, and obtain four elements of Stokes vector using the VRTM. The results for the two-layer model by MC method are compared against those for coupled atmosphere-ocean model by the discrete-ordinate method available in the literature, which validates the correctness of the MC multilayer model of polarized radiative transfer. Finally, the results for three-layer, five-layer, and ten-layer models are presented in graphical form. Results show that in the multilayer system, total reflections occurring at the surfaces/interfaces have significant effects on the polarized radiative transfer, which causes abrupt changes or fluctuations like waves in the curves of the Stokes vector.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polarized radiative transfer in an arbitrary multilayer semitransparent medium

Ben

Tan

2014

Appl. Opt.

View full text Add to dashboard Cite

show abstract

“…Many vector radiative transfer models have been proposed to predict the radiance and degree of polarization of the light using various numerical methods such as the successive orders of scattering method [11][12][13], the discrete ordinate method [14,15], the Monte Carlo method [16], the adding doubling method [17][18][19][20]. Because the sea surface is usually rough, a realistic radiative transfer model should be able to account for the roughening effect of the wind onto the sea surface to better simulate the propagation of the light across the air-sea interface.…”

Section: Introductionmentioning

confidence: 99%

OSOAA: a vector radiative transfer model of coupled atmosphere-ocean system for a rough sea surface application to the estimates of the directional variations of the water leaving reflectance to better process multi-angular satellite sensors data over the ocean

Chami¹,

Lafrance²,

Fougnie³

et al. 2015

Opt. Express

View full text Add to dashboard Cite

International audienceIn this study, we present a radiative transfer model, so-called OSOAA, that is able to predict the radiance and degree of polarization within the coupled atmosphere-ocean system in the presence of a rough sea surface. The OSOAA model solves the radiative transfer equation using the successive orders of scattering method. Comparisons with another operational radiative transfer model showed a satisfactory agreement within 0.8%. The OSOAA model has been designed with a graphical user interface to make it user friendly for the community. The radiance and degree of polarization are provided at any level, from the top of atmosphere to the ocean bottom. An application of the OSOAA model is carried out to quantify the directional variations of the water leaving reflectance and degree of polarization for phytoplankton and mineral-like dominated waters. The difference between the water leaving reflectance at a given geometry and that obtained for the nadir direction could reach 40%, thus questioning the Lambertian assumption of the sea surface that is used by inverse satellite algorithms dedicated to multi-angular sensors. It is shown as well that the directional features of the water leaving reflectance are weakly dependent on wind speed. The quantification of the directional variations of the water leaving reflectance obtained in this study should help to correctly exploit the satellite data that will be acquired by the current or forthcoming multi-angular satellite sensors

show abstract

“…Previous methods [1][2][3][4] were based on solutions of the scalar radiative transfer equation (RTE). But to account for polarization effects one needs solutions of the vector RTE, which were presented in [5], based on the DISORT method for a coupled atmosphere-ocean system (C-VDISORT) consisting of two turbid media separated by a plane interface across which the refractive index changed abruptly. In each medium, the particles were assumed to be so small enough for Rayleigh scattering to be applicable.…”

Section: Introductionmentioning

confidence: 99%

“…In each medium, the particles were assumed to be so small enough for Rayleigh scattering to be applicable. Here we extend the methods in [5] to large spherical particles, for which Mie scattering theory applies. As a check on the implementation of the C-VDISORT method, we developed a probabilistic MC method for polarized radiative transfer in a coupled system (C-PMC).…”

Section: Introductionmentioning

confidence: 99%