{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,14]],"date-time":"2025-11-14T07:35:34Z","timestamp":1763105734297,"version":"build-2065373602"},"reference-count":22,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2020,7,10]],"date-time":"2020-07-10T00:00:00Z","timestamp":1594339200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000844","name":"European Space Agency","doi-asserted-by":"publisher","award":["4000117454\/16\/I-Sbo"],"award-info":[{"award-number":["4000117454\/16\/I-Sbo"]}],"id":[{"id":"10.13039\/501100000844","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>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\u2013900 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\u2013700 nm. The irradiance comparison results showed an agreement between all lamps within \u00b11.5%. The radiance comparison results presented higher than expected discrepancies at the level of \u00b14%. 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.<\/jats:p>","DOI":"10.3390\/rs12142220","type":"journal-article","created":{"date-parts":[[2020,7,14]],"date-time":"2020-07-14T09:30:49Z","timestamp":1594719049000},"page":"2220","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Results from Verification of Reference Irradiance and Radiance Sources Laboratory Calibration Experiment Campaign"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4502-2687","authenticated-orcid":false,"given":"Agnieszka","family":"Bia\u0142ek","sequence":"first","affiliation":[{"name":"National Physical Laboratory, Teddington TW11 0LW, UK"}]},{"given":"Teresa","family":"Goodman","sequence":"additional","affiliation":[{"name":"National Physical Laboratory, Teddington TW11 0LW, UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3517-1486","authenticated-orcid":false,"given":"Emma","family":"Woolliams","sequence":"additional","affiliation":[{"name":"National Physical Laboratory, Teddington TW11 0LW, UK"}]},{"given":"Johannes F. S.","family":"Brachmann","sequence":"additional","affiliation":[{"name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt, 82234 Wessling, Germany"}]},{"given":"Thomas","family":"Schwarzmaier","sequence":"additional","affiliation":[{"name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt, 82234 Wessling, Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7565-1244","authenticated-orcid":false,"given":"Joel","family":"Kuusk","sequence":"additional","affiliation":[{"name":"Tartu Observatory, University of Tartu, 61602 T\u00f5ravere, Estonia"}]},{"given":"Ilmar","family":"Ansko","sequence":"additional","affiliation":[{"name":"Tartu Observatory, University of Tartu, 61602 T\u00f5ravere, Estonia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0963-706X","authenticated-orcid":false,"given":"Viktor","family":"Vabson","sequence":"additional","affiliation":[{"name":"Tartu Observatory, University of Tartu, 61602 T\u00f5ravere, Estonia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5026-3189","authenticated-orcid":false,"given":"Ian C.","family":"Lau","sequence":"additional","affiliation":[{"name":"Commonwealth Scientific and Industrial Research Organisation, Kensington, WA 6151, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6203-7082","authenticated-orcid":false,"given":"Christopher","family":"MacLellan","sequence":"additional","affiliation":[{"name":"Natural Environment Research Council\u2019s Field Spectroscopy Facility, Edinburgh EH9 3FE, UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9568-1299","authenticated-orcid":false,"given":"Sabine","family":"Marty","sequence":"additional","affiliation":[{"name":"Oceanography Group, Norwegian Institute for Water Research, Gaustadalleen 21, 0349 Oslo, Norway"}]},{"given":"Michael","family":"Ondrusek","sequence":"additional","affiliation":[{"name":"Center for Satellite Applications and Research, National Oceanic and Atmospheric Administration, College Park, MD 20740, USA"}]},{"given":"William","family":"Servantes","sequence":"additional","affiliation":[{"name":"National Physical Laboratory, Teddington TW11 0LW, UK"}]},{"given":"Sarah","family":"Taylor","sequence":"additional","affiliation":[{"name":"National Physical Laboratory, Teddington TW11 0LW, UK"}]},{"given":"Ronnie","family":"Van Dommelen","sequence":"additional","affiliation":[{"name":"Sea-Bird Scientific, Bellevue, WA 98005, USA"}]},{"given":"Andrew","family":"Barnard","sequence":"additional","affiliation":[{"name":"Sea-Bird Scientific, Bellevue, WA 98005, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5392-7457","authenticated-orcid":false,"given":"Vincenzo","family":"Vellucci","sequence":"additional","affiliation":[{"name":"Sorbonne Universit\u00e9, CNRS, Institut de la Mer de Villefranche  IMEV, F-06230 Villefranche-sur-Mer, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5142-1433","authenticated-orcid":false,"given":"Andrew C.","family":"Banks","sequence":"additional","affiliation":[{"name":"National Physical Laboratory, Teddington TW11 0LW, UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9616-1359","authenticated-orcid":false,"given":"Nigel","family":"Fox","sequence":"additional","affiliation":[{"name":"National Physical Laboratory, Teddington TW11 0LW, UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3740-0772","authenticated-orcid":false,"given":"Riho","family":"Vendt","sequence":"additional","affiliation":[{"name":"Tartu Observatory, University of Tartu, 61602 T\u00f5ravere, Estonia"}]},{"given":"Craig","family":"Donlon","sequence":"additional","affiliation":[{"name":"European Space Agency, 2201 AZ Noordwijk, The Netherlands"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7119-3928","authenticated-orcid":false,"given":"T\u00e2nia","family":"Casal","sequence":"additional","affiliation":[{"name":"European Space Agency, 2201 AZ Noordwijk, The Netherlands"}]}],"member":"1968","published-online":{"date-parts":[[2020,7,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"032002","DOI":"10.1088\/1681-7575\/ab1705","article-title":"Applying principles of metrology to historical Earth observations from satellites","volume":"56","author":"Mittaz","year":"2019","journal-title":"Metrologia"},{"key":"ref_2","unstructured":"(2019, March 01). 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