World Meteorological Organization (WMO) ; Agencia Estatal de Meteorología (España) ; Fourteenth Intercomparison Campaign of the Regional Brewer Calibration Centre Europe (El Arenosillo Atmospheric Sounding Station, Huelva, Spain, 17–28 June 2019)Published by: WMO, AEMET ; 2021
XIV Regional intercomparison of the Brewer Calibration Center for Europe (RBCC-E) was held at El Arenosillo Atmospheric Sounding Station of the “Instituto Nacional de Técnica Aeroespacial” (INTA) during the period 17 – 28 of June, 2019. 21 Brewer spectrometers, 15 operators and experts from 11 countries took part in XIV Regional intercomparison campaign. The campaign was organized in collaboration with the “Area of Instrumentation and Atmospheric Research” of INTA, with the support of the Global Atmospheric Watch (GAW) program of the World Meteorological Organization (WMO). The Brewer travelling instrument from the Regional Brewer Calibration Center - Europe served as ozone reference and the QASUME unit from the World Calibration Center provided the UV calibration for the participating instruments.
The main goal of the campaign was to transfer the calibration from the reference standard to the participating instruments and to compare the instruments which are also reference standards for individual networks or are used as travelling standards and included Environment and Climate Change Canada, International Ozone Services Inc. (OS), Kipp and Zonnen Inc., and Japan Meteorological Agency.
The results of the blind comparison (using the instruments’ original calibration constants) are In agreement with previous campaigns, 6 instruments show an agreement better than 0.5%, which represent (31%) of the participating instruments. Of the remaining instruments, 74% show an agreement inside the 1% range. After the maintenance tasks, performed by International Ozone Services Inc. (IOS), and using the new determined calibration constant and the stray light correction applied to single monochromator Brewers, the agreement with respect to the reference was very good: +/- 0.5%.
Collection(s) and Series: GAW Report- No. 257
Format: Digital (Free)