RT Report T1 Report of the 2014 LoNNe intercomparison campaign T2 Informe sobre la campaña de intercomparación LoNNe 2014 A1 Bará, Salvador A1 Espey, Brian A1 Falchi, Fabio A1 Kyba, Christopher C. M. A1 Nievas Rosillo, Mireia A1 Pescatori, Paolo A1 Ribas, Salvador A1 Sánchez de Miguel, Alejandro A1 Staubmann, Philipp A1 Tapia Ayuga, Carlos A1 Wuchterl, Günther A1 Zamorano Calvo, Jaime AB The 2014 LoNNe (Loss of the Night Network) intercomparison campaign is the second of four campaigns planned during EU COST Action ES1204. The goal of these campaigns is to understand systematic uncertainty inherent in observations of skyglow (light pollution). An innovation of this year’s campaign was to take measurements with many of the nstruments at two sites: an urban location and a location far from artificial lights. This report summarizes the eeting, and also provides three recommendations for obtaining and analyzing handheld SQM observations.The UCM group of Astronomical Instrumentation and Extragalactic Astronomy (GUAIX) hosted the meeting at the Physics building of Universidad Complutense de Madrid (UCM). A meeting room at Departamento de Astrofísica y CC. de la Atmósfera and the astronomical observatory (Observatorio UCM) were prepared in advance. In particular, a tailor made station to set the SQM and other photometer devices was installed on the roof of the Physics building. TheLaboratorio de Investigación Científica Avanzada (LICA) was used to test and characterize a number of devices and filters. YR 2015 FD 2015-08-31 LK https://hdl.handle.net/20.500.14352/27513 UL https://hdl.handle.net/20.500.14352/27513 LA spa NO EU COST Action ES1204 DS Docta Complutense RD 2 may 2024