Calibration at Izaña station of 70 TENUM Calitoo sun-photometers involved in the GLOBE scientific-educational program

From October 7th to 9th, 2014, 70 Calitoo sun-photometers have been calibrated at Izaña station (IARC–AEMET). This small educational sun-photometer has been manufactured by TENUM and developed under the scientific and technical supervision of Dr. Phillipe Goloub and Eng. Luc Blarel from the Laboratoire d’Optique Atmosphérique (LOA; CNRS-University of Lille). Calitoos are involved in the Global Learning and Observations to Benefit the Environment (GLOBE) program, which is a worldwide hands-on, primary and secondary school-based science and education program.

After manufacturing, the sun-photometers must be periodically calibrated to provide measurements of aerosol optical depth (AOD). The optimal calibration conditions of the Izaña Atmospheric Observatory have allowed calibrating these 70 Calitoo sun-photometers.
One of these Calitoo sun-photometers will be utilized in future experimental campaigns and educational and dissemination activities in which IARC will be involved.

TENUM Calitoo sun-photometer; Frederic Bouchar and Stéphane Villeneuve during the calibration activity, and together with Dr. Emilio Cuevas, Carmen Guirado and Fernando Almansa at Izaña’s calibration platform