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Small-angle modification of the radiative transfer equation for a pseudo-spherical atmosphere

Efremenko, Dmitry and Doicu, Adrian and Loyola, Diego and Trautmann, Thomas (2013) Small-angle modification of the radiative transfer equation for a pseudo-spherical atmosphere. Journal of Quantitative Spectroscopy and Radiative Transfer, 114, pp. 82-90. Elsevier. DOI: 10.1016/j.jqsrt.2012.08.013 ISSN 0022-4073

Full text not available from this repository.

Official URL: http://www.sciencedirect.com/science/article/pii/S0022407312003779

Abstract

The conventional pseudo-spherical technique relies on the separation of the total radiance into the direct solar beam and the diffuse radiance; the direct solar radiance is treated in a spherical geometry, while the diffuse radiance is computed in a plane-parallel geometry. In the small-angle modification of the radiative transfer equation, the total radiance is separated into an anisotropic part and a regular part. In this paper, we pOresent two formulations of the small-angle modification of the radiative transfer equation for a pseudo-spherical atmosphere. In the first formulation, we solve the radiative transfer equation for the diffuse radiance in a pseudo-spherical atmosphere with an additional anisotropic source term computed in a plane-parallel atmosphere, while in the second formulation we solve the radiative transfer equation for the regular solution in a plane-parallel atmosphere with an additional pseudo-spherical correction term. The numerical analysis revealed that the accuracy of the small-angle models is acceptable.

Item URL in elib:https://elib.dlr.de/81188/
Document Type:Article
Title:Small-angle modification of the radiative transfer equation for a pseudo-spherical atmosphere
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Efremenko, Dmitrydmitry.efremenko (at) dlr.deUNSPECIFIED
Doicu, AdrianAdrian.Doicu (at) dlr.deUNSPECIFIED
Loyola, Diegodiego.loyola (at) dlr.deUNSPECIFIED
Trautmann, Thomasthomas.trautmann (at) dlr.deUNSPECIFIED
Date:January 2013
Journal or Publication Title:Journal of Quantitative Spectroscopy and Radiative Transfer
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:114
DOI :10.1016/j.jqsrt.2012.08.013
Page Range:pp. 82-90
Publisher:Elsevier
ISSN:0022-4073
Status:Published
Keywords:Radiative transfer; Pseudo-spherical atmosphere; Discrete ordinates; Small-angle approximation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Entwicklung von Atmosphärenprozessoren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Efremenko, Dr Dmitry
Deposited On:18 Feb 2013 13:18
Last Modified:06 Sep 2019 15:28

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