Results from Verification of Reference Irradiance and Radiance Sources Laboratory Calibration Experiment Campaign

Type Article
Date 2020-07
Language English
Author(s) Białek Agnieszka1, Goodman Teresa1, Woolliams Emma1, Brachmann Johannes F. S.2, Schwarzmaier Thomas2, Kuusk Joel3, Ansko Ilmar3, Vabson Viktor3, Lau Ian C.4, Maclellan Christopher5, Marty Sabine6, Ondrusek Michael7, Servantes William1, Taylor Sarah1, Van Dommelen Ronnie8, Barnard Andrew8, Vellucci Vincenzo9, Banks Andrew C.1, Fox Nigel1, Vendt Riho3, Donlon Craig10, Casal Tânia10
Affiliation(s) 1 : National Physical Laboratory, Teddington TW11 0LW, UK
2 : Deutsches Zentrum für Luft- und Raumfahrt, 82234 Wessling, Germany
3 : Tartu Observatory, University of Tartu, 61602 Tõravere, Estonia
4 : Commonwealth Scientific and Industrial Research Organisation, Kensington, WA 6151, Australia
5 : Natural Environment Research Council’s Field Spectroscopy Facility, Edinburgh EH9 3FE, UK
6 : Oceanography Group, Norwegian Institute for Water Research, Gaustadalleen 21, 0349 Oslo, Norway
7 : Center for Satellite Applications and Research, National Oceanic and Atmospheric Administration, College Park, MD 20740, USA
8 : Sea-Bird Scientific, Bellevue, WA 98005, USA
9 : Sorbonne Université, CNRS, Institut de la Mer de Villefranche IMEV, F-06230 Villefranche-sur-Mer, France
10 : European Space Agency, 2201 AZ Noordwijk, The Netherlands
Source Remote Sensing (2072-4292) (MDPI AG), 2020-07 , Vol. 12 , N. 14 , P. 2220 (18p.)
DOI 10.3390/rs12142220
Note This article belongs to the Special Issue Fiducial Reference Measurements for Satellite Ocean Colour)
Keyword(s) ocean colour, spectral irradiance comparison, spectral radiance sources comparison, fiducial reference measurements

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.

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Białek Agnieszka, Goodman Teresa, Woolliams Emma, Brachmann Johannes F. S., Schwarzmaier Thomas, Kuusk Joel, Ansko Ilmar, Vabson Viktor, Lau Ian C., Maclellan Christopher, Marty Sabine, Ondrusek Michael, Servantes William, Taylor Sarah, Van Dommelen Ronnie, Barnard Andrew, Vellucci Vincenzo, Banks Andrew C., Fox Nigel, Vendt Riho, Donlon Craig, Casal Tânia (2020). Results from Verification of Reference Irradiance and Radiance Sources Laboratory Calibration Experiment Campaign. Remote Sensing, 12(14), 2220 (18p.). Publisher's official version : , Open Access version :