caa a22 4500 445799439 CHVBK 20180317145136.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00704-010-0312-9 doi (NATIONALLICENCE)springer-10.1007/s00704-010-0312-9 New approach to measure the stability of the solar radiative regime [Elektronische Daten] [Marius Paulescu, Viorel Badescu] This paper focuses on different ways of characterizing the solar radiative regime of a day and the stability of this regime. The days may be stratified in classes of cloud shade, observed total cloud cover amount, daily averaged clearness index, and fractal dimension of the solar global irradiance signal. A new Boolean parameter related to solar irradiance fluctuation is defined, namely the sunshine stability number. The time averaged value of the sunshine stability number is used for the characterization of the radiative regime stability during a given time interval. Ranking the days from the view-point of the stability of their radiative regime is performed by using the daily average value of the sunshine stability number and appropriately defined values of disorder and complexity, respectively. Measurements performed in the Romanian town of Timisoara (latitude 45°46′ N, longitude 21°25′ E and 85m altitude above mean sea level) are used here. They refer to time series of global and diffuse solar irradiance recorded at 15-s time interval between sunrise and sunset during all the days in 2009. Springer-Verlag, 2010 Paulescu Marius Physics Department, West University of Timisoara, V. Parvan Str., Nr. 4, 300223, Timisoara, Romania aut Badescu Viorel Candida Oancea Institute, Polytechnic University of Bucharest, Spl. Independentei 313, 060042, Bucharest, Romania aut Theoretical and Applied Climatology Springer Vienna 103/3-4(2011-03-01), 459-470 0177-798X 103:3-4<459 2011 103 704 https://doi.org/10.1007/s00704-010-0312-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00704-010-0312-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Paulescu Marius Physics Department, West University of Timisoara, V. Parvan Str., Nr. 4, 300223, Timisoara, Romania aut NATIONALLICENCE 700 1- Badescu Viorel Candida Oancea Institute, Polytechnic University of Bucharest, Spl. Independentei 313, 060042, Bucharest, Romania aut NATIONALLICENCE 773 0- Theoretical and Applied Climatology Springer Vienna 103/3-4(2011-03-01), 459-470 0177-798X 103:3-4<459 2011 103 704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer