Facility - Solar-Weather
The Solar-Weather unit is collecting data since July 2003. 
It consists of two parts: a weather station that provides temperature, pressure, wind direction and speed, rain measurements; and a solar radiation station that can separately measure direct, diffuse, reflected and global solar irradiance at ground. The latter is equipped with a Kipp&Zonen 2AP sun tracker that supports a shaded ventilated pyranometer for diffuse radiation measurements and a pyrheliometer for direct radiation measurements; global and reflected fluxes are measured by two pyranometers mounted on a dedicated plate. 
A Campbell Scientific CR10X data logger collects radiation data every minute only during diurnal period, while weather data are collected all day long and minimum, maximum and average of each variable are given every minute and on both hourly and daily basis. Data collected by the unit have been used to characterize the Tor Vergata site for solar radiation availability and climatic conditions.