Articles | Volume 9, issue 4
Research article
12 Apr 2016
Research article |  | 12 Apr 2016

Calibration methods for rotating shadowband irradiometers and optimizing the calibration duration

Wilko Jessen, Stefan Wilbert, Bijan Nouri, Norbert Geuder, and Holger Fritz


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Short summary
This paper covers procedures and requirements of two calibration methods and examines the necessary duration of acquisition of test measurements. Site-specific seasonal changes of environmental conditions cause small but noticeable fluctuation of calibration results. Calibration results within certain periods show a higher likelihood of deviation. These effects can partially be attenuated by including more measurements from outside these periods.