TY - JOUR AU - Reda, Ibrahim AU - Zeng, Jinan AU - Scheuch, Jonathan AU - Hanssen, Leonard AU - Myers, Daryl AU - Wilthan, Boris AU - Stoffel, Tom C2 - Journal of Atmospheric and Solar-Terrestrial Physics DA - 2012-03-01 00:03:00 LA - en PB - Journal of Atmospheric and Solar-Terrestrial Physics PY - 2012 TI - An absolute cavity pyrgeometer to measure the absolute outdoor longwave irradiance with traceability to International System of Units, SI ER -