Wavelength calibration of Brewer spectrophotometer using a tunable pulsed laser and implications to the Brewer ozone retrieval
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Published:2018-06-27
Issue:6
Volume:11
Page:3759-3768
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ISSN:1867-8548
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Container-title:Atmospheric Measurement Techniques
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language:en
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Short-container-title:Atmos. Meas. Tech.
Author:
Redondas AlbertoORCID, Nevas Saulius, Berjón AlbertoORCID, Sildoja Meelis-Mait, León-Luis Sergio Fabian, Carreño Virgilio, Santana-Díaz Daniel
Abstract
Abstract. In this contribution we present the wavelength calibration of the travelling
reference Brewer spectrometer of the Regional Brewer Calibration Center for
Europe (RBCC-E) 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.
Publisher
Copernicus GmbH
Subject
Atmospheric Science
Reference19 articles.
1. Bernhard, G., Evans, R. D., Labow, G. J., and Oltmans, S. J.: Bias in Dobson
total ozone measurements at high latitudes due to approximations in
calculations of ozone absorption coefficients and air mass, J.
Geophys. Res.-Atmos., 110, D10305, https://doi.org/10.1029/2004JD005559,
2005. a, b 2. Brewer, A. W.: A replacement for the Dobson spectrophotometer?, Pure
Appl. Geophys., 106, 919–927, https://doi.org/10.1007/BF00881042, 1973. a 3. Brion, J., Chakir, A., Daumont, D., Malicet, J., and Parisse, C.:
High-resolution laboratory absorption cross section of O3. Temperature
effect, Chem. Phys. Lett., 213, 610–612, https://doi.org/10.1016/0009-2614(93)89169-I,
1993. a 4. Daumont, Brion, J., Charbonnier, J., and Malicet, J.: Ozone UV spectroscopy
I: Absorption cross-sections at room temperature, J. Atmos.
Chem., 15, 145–155, https://doi.org/10.1007/BF00053756, 1992. a 5. Gorshelev, V., Serdyuchenko, A., Weber, M., Chehade, W., and Burrows, J. P.:
High spectral resolution ozone absorption cross-sections – Part 1:
Measurements, data analysis and comparison with previous measurements
around 293 K, Atmos. Meas. Tech., 7, 609–624, https://doi.org/10.5194/amt-7-609-2014, 2014. a
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