Characterization of the intraday variability regime of solarirradiation of climatically distinct locations

Autor: Emeric Tapaches, Mathieu David, Philippe Lauret, Luis Mazorra Aguiar, Hadja Maïmouna Diagne, Richard Perez
Přispěvatelé: Physique et Ingénierie Mathématique pour l'Énergie, l'environnemeNt et le bâtimenT (PIMENT), Université de La Réunion (UR), University at Albany [SUNY], State University of New York (SUNY)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Solar Energy
Solar Energy, Elsevier, 2016, 125, pp.99-110. ⟨10.1016/j.solener.2015.11.032⟩
ISSN: 0038-092X
1471-1257
Popis: International audience; This paper investigates the relationship between two parameters characterizing a given location on a given day: the daily clear skyindex KT* and the intraday variability given by the standard deviation of the changes in the hourly clear sky index rðDktDtÞ. Empiricalevidence assembled from twenty climatically distinct locations led us to derive a simple model to infer intraday variability from the day’sclear sky index. Although the model shows little dependence on location, we did observe a systematic difference traceable to a location’sprevailing cloud formation regime. Therefore, we also propose two alternative models for sites where cloud formations is influenced bylocal orography and sites where cloud formation is traceable to weather events only. Finally, we present a possible application of themodels to enhance the informative content of day(s) ahead NWP forecasts.
Databáze: OpenAIRE