Multi annual variability and climatic signal analysis of sunshine duration at a large urban ara of Mediterranean

dc.contributor.author	Φουντά, Δήμητρα	el
dc.contributor.author	Καλημέρης, Αναστάσιος	el
dc.contributor.author	Πιέρρος, Φραγκίσκος	el
dc.date.accessioned	2015-05-15T15:13:21Z
dc.date.issued	2015-05-15
dc.identifier.uri	http://hdl.handle.net/11400/10455
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.elsevier.com/	en
dc.subject	Πολυετή μεταβλητότητα
dc.subject	Κλιματική ανάλυση
dc.subject	Ηλιοφάνεια
dc.subject	Μεσόγειο
dc.subject	Ελλάδα
dc.subject	Multi-annual variability
dc.subject	Climate analysis
dc.subject	Sunny
dc.subject	Mediterranean
dc.subject	Greece
dc.title	Multi annual variability and climatic signal analysis of sunshine duration at a large urban ara of Mediterranean	en
heal.type	journalArticle
heal.secondaryTitle	(Athens)	en
heal.classification	Ecology
heal.classification	Solar energy
heal.classification	Οικολογία
heal.classification	Ηλιακή ενέργεια
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85040752
heal.classificationURI	http://skos.um.es/unescothes/C03763
heal.classificationURI	N/A-Οικολογία
heal.classificationURI	N/A-Ηλιακή ενέργεια
heal.identifier.secondary	ISSN: 2212-0955
heal.dateAvailable	10000-01-01
heal.language	en
heal.access	forever
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Tμήμα Πολιτικών Μηχανικών Τ.Ε. και Μηχανικών Τοπογραφίας και Γεωπληροφορικής Τ.Ε. Κατεύθυνση Μηχανικών Τοπογραφίας και Γεωπληροφορικής Τ.Ε.	el
heal.publicationDate	2014-12
heal.bibliographicCitation	Founda, D., Kalimeris, A. and Pierros, F. (2014) Multi annual variability and climatic signal analysis of sunshine duration at a large urban ara of Mediterranean: (Athens). Urban Climate, 10 (5). pp.815-830.	en
heal.abstract	This study analyses the interannual variability of sunshine duration (SDU) at the urban area of Athens from 1897 to 2011. Observations of total cloud cover (TCC) are also used for a better interpretation of SDU variations. The annual SDU in Athens has increased by +8% (+19 h/decade) over the past century, mainly due to increase in the summer and spring SDU, however, distinct sub periods with decreasing and increasing trends are also discerned. SDU in Athens has undergone an abrupt increase during 1940s with early 1950s being the brightest period of the record. For long periods the course of SDU mirrors TCC, indicating a strong negative correlation between the two variables, nevertheless during the last three decades, both variables reveal trends of the same sign (more evident in spring). Under all-sky conditions, annual SDU decreased by approximately 7% from 1950s to 1980s and increased by 3% thereafter. Under clear sky conditions, the increase of SDU after 1980s is larger, amounting to 9%. Singular spectrum analysis and Continuous Wavelet Transform indicated significant non-linear trends of SDU and an intermittent oscillation, centered at 2.9–3.0 yrs.	en
heal.publisher	Elsevier	en
heal.journalName	Urban Climate	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	false