Thermal emission in the successive orders ...
Type de document :
Article dans une revue scientifique: Article original
URL permanente :
Titre :
Thermal emission in the successive orders of scattering (SOS) radiative transfer approach
Auteur(s) :
Herreras-Giralda, M. [Auteur]
Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA]
Litvinov, P. [Auteur]
Dubovik, O. [Auteur]
Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA]
Derimian, Y. [Auteur]
Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA]
Lapyonok, T. [Auteur]
Fuertes, D. [Auteur]
Sourdeval, O. [Auteur]
Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA]
Preusker, R. [Auteur]
Fischer, J. [Auteur]
Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA]
Litvinov, P. [Auteur]
Dubovik, O. [Auteur]
Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA]
Derimian, Y. [Auteur]
Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA]
Lapyonok, T. [Auteur]
Fuertes, D. [Auteur]
Sourdeval, O. [Auteur]
Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA]
Preusker, R. [Auteur]
Fischer, J. [Auteur]
Titre de la revue :
Journal of Quantitative Spectroscopy and Radiative Transfer
Nom court de la revue :
Journal of Quantitative Spectroscopy and Radiative Transfer
Pagination :
108327
Éditeur :
Elsevier BV
Date de publication :
2022-11
ISSN :
0022-4073
Résumé en anglais : [en]
The Successive Orders of Scattering (SOS) approach [1] is one of the well known methods for solving the Radiative Transfer (RT) problem. Its efficiency in terms of speed and accuracy of computation was already demonstrated ...
Lire la suite >The Successive Orders of Scattering (SOS) approach [1] is one of the well known methods for solving the Radiative Transfer (RT) problem. Its efficiency in terms of speed and accuracy of computation was already demonstrated for scattering and absorbing atmospheres in Solar spectrum. Although there are no principle limitations to account for the emission processes, the application of the SOS method for atmospheres with thermal emission is not widely used yet. In this paper we present a SOS-based RT approach accounting for the full source function, which enables its application from the UV (UltraViolet) to the TIR (Thermal InfraRed) parts of the electromagnetic spectrum. The atmospheric vertical discretization in this extended SOS scheme is a key point in order to properly retain the scattering and emission processes. An analysis of different methodologies to perform this vertical discretization is presented. The numerical implementation has been included in GRASP (Generalized retrieval of Atmosphere and Surface Properties) RT code [2]. In comparison with the widely used code DISORT (DIScrete-ORdinatemethod for Radiative Transfer) [3], the developed SOS scheme achieves a mean accuracy of radiance calculation of 0.005 K (0.003%) expressed in terms of brightness temperature. Under the same configuration and vertically inhomogeneous atmospheric conditions, GRASP SOS RT is approximately eight times faster than DISORT. The analysis of the sensitivity of GRASP TIR SOS scheme to the number of layers and the effect of polarization are also investigated in the paper.Lire moins >
Lire la suite >The Successive Orders of Scattering (SOS) approach [1] is one of the well known methods for solving the Radiative Transfer (RT) problem. Its efficiency in terms of speed and accuracy of computation was already demonstrated for scattering and absorbing atmospheres in Solar spectrum. Although there are no principle limitations to account for the emission processes, the application of the SOS method for atmospheres with thermal emission is not widely used yet. In this paper we present a SOS-based RT approach accounting for the full source function, which enables its application from the UV (UltraViolet) to the TIR (Thermal InfraRed) parts of the electromagnetic spectrum. The atmospheric vertical discretization in this extended SOS scheme is a key point in order to properly retain the scattering and emission processes. An analysis of different methodologies to perform this vertical discretization is presented. The numerical implementation has been included in GRASP (Generalized retrieval of Atmosphere and Surface Properties) RT code [2]. In comparison with the widely used code DISORT (DIScrete-ORdinatemethod for Radiative Transfer) [3], the developed SOS scheme achieves a mean accuracy of radiance calculation of 0.005 K (0.003%) expressed in terms of brightness temperature. Under the same configuration and vertically inhomogeneous atmospheric conditions, GRASP SOS RT is approximately eight times faster than DISORT. The analysis of the sensitivity of GRASP TIR SOS scheme to the number of layers and the effect of polarization are also investigated in the paper.Lire moins >
Comité de lecture :
Oui
Audience :
Non spécifiée
Établissement(s) :
Université de Lille
CNRS
CNRS
Collections :
Date de dépôt :
2023-01-06T12:13:15Z