Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11765/9445
Wavelength calibration of Brewer spectrophotometer using a tunable pulsed laser and implications to the Brewer ozone retrieval
Title: Wavelength calibration of Brewer spectrophotometer using a tunable pulsed laser and implications to the Brewer ozone retrieval
Authors: Redondas, Alberto ORCID RESEARCHERID Autor AEMETNevas, SauliusBerjón, AlbertoSildoja, Meelis-MaitLeón-Luis, Sergio F.Autor AEMETCarreño Corbella, VirgilioSantana-Díaz, Daniel
Keywords: Brewer spectrophotometer; Brewer calibration; Ozone
Issue Date: 2018
Publisher: European Geosciences Union
Citation: Atmospheric Measurement Techniques. 2018, 11(6), p. 3759–3768
Publisher version: https://dx.doi.org/10.5194/amt-11-3759-2018
Abstract: In this contribution we present the wavelength calibration of the travelling reference Brewer spectrometer of the Regional Brewer Calibration Center for Europe (RBCCE) at PTB in Braunschweig, Germany. The wavelength calibration is needed for the calculation of the ozone absorption coefficients used by the Brewer ozone algorithm. In order to validate the standard procedure for determining Brewer’s wavelength scale, a calibration has been performed by using a tunable laser source at PTB in the framework of the EMRP project ENV59 ATMOZ “Traceability for the total column ozone”. Here we compare these results to those of the standard procedure for the wavelength calibration of the Brewer instrument. Such a comparison allows validating the standard methodology used for measuring the ozone absorption coefficient with respect to several assumptions. The results of the laser-based calibrations reproduces those obtained by the standard operational methodology and shows that there is an underestimation of 0.8 % of the ozone absorption coefficients due to the use of the parametrized slit functions.
Sponsorship : This work has been supported by the European Metrology Research Programme (EMRP) within the joint research project ENV59 “Traceability for atmospheric total column ozone” (ATMOZ). The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union.
URI: http://hdl.handle.net/20.500.11765/9445
ISSN: 1867-1381
1867-8548
Appears in Collections:Artículos científicos 2015-2018


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