Solar irradiance in clear atmosphere: study of parameterisations of change with altitude

Abstract : Parameterisation of changes of the solar irradiance at ground level with a specific variable (e.g. solar zenithal angle, aerosol optical depth, altitude, etc.) is often used in operational processes because it saves computational time. This paper deals with the modelling of the vertical profile of downwelling solar irradiance for the first two kilometres above ground in clear sky conditions. Two analytical parameterisations are evaluated for direct and global irradiance in spectral bands as well as for the total irradiance. These parameterisations reproduce the vertical profile with good accuracy for global spectral irradiance and are less accurate for direct component, especially in turbid atmosphere. A piecewise linear interpolation technique using irradiance values known at surface and 4 altitudes every 500 m performs better in any case.
Liste complète des métadonnées

Littérature citée [6 références]  Voir  Masquer  Télécharger

https://hal-mines-paristech.archives-ouvertes.fr/hal-00620372
Contributeur : Lucien Wald <>
Soumis le : mercredi 7 septembre 2011 - 16:13:35
Dernière modification le : mardi 27 mars 2018 - 16:06:22
Document(s) archivé(s) le : mardi 13 novembre 2012 - 10:05:52

Fichier

2011_ASR_altitude_oumbe.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Licence


Distributed under a Creative Commons Paternité 4.0 International License

Identifiants

Citation

Armel Oumbe, Philippe Blanc, Benoît Gschwind, Mireille Lefèvre, Zhipeng Qu, et al.. Solar irradiance in clear atmosphere: study of parameterisations of change with altitude. Advances in Science and Research, Copernicus Publications, 2011, 6, pp.199-203. ⟨10.5194/asr-6-199-2011⟩. ⟨hal-00620372⟩

Partager

Métriques

Consultations de la notice

832

Téléchargements de fichiers

252