TY - JOUR T1 - Results from Verification of Reference Irradiance and Radiance Sources Laboratory Calibration Experiment Campaign A1 - Białek,Agnieszka A1 - Goodman,Teresa A1 - Woolliams,Emma A1 - Brachmann,Johannes F. S. A1 - Schwarzmaier,Thomas A1 - Kuusk,Joel A1 - Ansko,Ilmar A1 - Vabson,Viktor A1 - Lau,Ian C. A1 - Maclellan,Christopher A1 - Marty,Sabine A1 - Ondrusek,Michael A1 - Servantes,William A1 - Taylor,Sarah A1 - Van Dommelen,Ronnie A1 - Barnard,Andrew A1 - Vellucci,Vincenzo A1 - Banks,Andrew C. A1 - Fox,Nigel A1 - Vendt,Riho A1 - Donlon,Craig A1 - Casal,Tânia AD - National Physical Laboratory, Teddington TW11 0LW, UK AD - Deutsches Zentrum für Luft- und Raumfahrt, 82234 Wessling, Germany AD - Tartu Observatory, University of Tartu, 61602 Tõravere, Estonia AD - Commonwealth Scientific and Industrial Research Organisation, Kensington, WA 6151, Australia AD - Natural Environment Research Council’s Field Spectroscopy Facility, Edinburgh EH9 3FE, UK AD - Oceanography Group, Norwegian Institute for Water Research, Gaustadalleen 21, 0349 Oslo, Norway AD - Center for Satellite Applications and Research, National Oceanic and Atmospheric Administration, College Park, MD 20740, USA AD - Sea-Bird Scientific, Bellevue, WA 98005, USA AD - Sorbonne Université, CNRS, Institut de la Mer de Villefranche IMEV, F-06230 Villefranche-sur-Mer, France AD - European Space Agency, 2201 AZ Noordwijk, The Netherlands UR - https://archimer.ifremer.fr/doc/00655/76688/ DO - 10.3390/rs12142220 KW - ocean colour KW - spectral irradiance comparison KW - spectral radiance sources comparison KW - fiducial reference measurements N2 - We present the results from Verification of Reference Irradiance and Radiance Sources Laboratory Calibration Experiment Campaign. Ten international laboratories took part in the measurements. The spectral irradiance comparison included the measurements of the 1000 W tungsten halogen filament lamps in the spectral range of 350 nm–900 nm in the pilot laboratory. The radiance comparison took a form of round robin where each participant in turn received two transfer radiometers and did the radiance calibration in their own laboratory. The transfer radiometers have seven spectral bands covering the wavelength range from 400 nm–700 nm. The irradiance comparison results showed an agreement between all lamps within ±1.5%. The radiance comparison results presented higher than expected discrepancies at the level of ±4%. Additional investigation to determine the causes for these discrepancies identified them as a combination of the size-of-source effect and instrument effective field of view that affected some of the results. Y1 - 2020/07 PB - MDPI AG JF - Remote Sensing SN - 2072-4292 VL - 12 IS - 14 ID - 76688 ER -