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Auteur J. Tovar-Pescador |
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A comparative analysis of DEM-based models to estimate the solar radiation in mountainous terrain / J. Ruiz-Arias in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)
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Titre : A comparative analysis of DEM-based models to estimate the solar radiation in mountainous terrain Type de document : Article/Communication Auteurs : J. Ruiz-Arias, Auteur ; J. Tovar-Pescador, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 1049 - 1076 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] bassin méditerranéen
[Termes IGN] éclairement énergétique
[Termes IGN] modèle numérique de terrain
[Termes IGN] montagne
[Termes IGN] rayonnement solaire
[Termes IGN] système d'information géographiqueRésumé : (Auteur) Daily solar radiation estimates of four up-to-date solar radiation models (Solar Analyst, r.sun, SRAD and Solei-32), based on a digital elevation model (DEM), have been evaluated and compared in a Mediterranean environment characterized by a complex topography. The models' estimates were evaluated against 40 days of radiometric data collected in 14 stations. Analyzed sky conditions ranged from completely overcast conditions to clear skies. Additionally, the role of the spatial resolution of the DEM has been evaluated through the use of two different resolutions: 20 and 100 m. Results showed that, under clear-sky conditions, the daily solar radiation variability in the study area may be reasonably estimated with mean bias errors under 10% and root mean square error values of around 15%. On the other hand, results proved that the reliability of the estimates substantially decreases under overcast conditions for some of the solar radiation models. Regarding the role of the DEM spatial resolution, results suggested that the reliability of the estimates for complex topography areas under clear-sky conditions improves using a higher spatial resolution. Numéro de notice : A2009-346 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1080/13658810802022806 En ligne : https://doi.org/10.1080/13658810802022806 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29976
in International journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 1049 - 1076[article]Exemplaires(2)
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