Mentor: B. Bohn
Two pyranometers (CMP 21), a pyrheliometer (CHP 1) and a pyrgeometer (CGR 4) are used to measure solar shortwave radiation and terrestrial longwave radiation. One pyranometer receives total downward solar irradiance. The other instruments are mounted on a suntracker (SOLYS 2) measuring diffuse downward solar irradiance (shaded pyranometer), direct solar irradiance (pyrheliometer) and terrestrial downward irradiance (shaded pyrgeometer). All instruments were produced and calibrated by Kipp&Zonen B.V., Netherlands.
Suntracker SOLYS at Forschungszentrum Jülich on the roof of the IEK-8 (Institut für Energie- und Klimaforschung: Troposphäre).
|April 2014 - today||Forschungszentrum Jülich||JOYCE|
Total solar irradiance measurements started in 2006, pyrgeometer measurments in 2011, suntracker measurements in 2014.
|Total solar irradiance (CMP 21)||Secondary standard (WMO)|
|Diffuse solar irradiance (CMP 21)||Secondary standard (WMO)||shaded|
|Direct solar irradiance (CHP 1)||First class (WMO)||tracked|
|Terrestrial irradiance (CGR 4)||Certified calibration||shaded|
|Manufacturer||Kipp & Zonen B.V., NL|
|Data logger (CR3000)||16-bit||5 s time resolution|
|Manufacturer||Campbell Scientific Inc., UK|