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Published November 1, 2007 | Published
Journal Article Open

Intercomparison of ground-based ozone and NO2 measurements during the MANTRA 2004 campaign

Abstract

The MANTRA (Middle Atmosphere Nitrogen TRend Assessment) 2004 campaign took place in Vanscoy, Saskatchewan, Canada (52° N, 107° W) from 3 August to 15 September, 2004. In support of the main balloon launch, a suite of five zenith-sky and direct-Sun-viewing UV-visible ground-based spectrometers was deployed, primarily measuring ozone and NO2 total columns. Three Fourier transform spectrometers (FTSs) that were part of the balloon payload also performed ground-based measurements of several species, including ozone. Ground-based measurements of ozone and NO2 differential slant column densities from the zenith-viewing UV-visible instruments are presented herein. They are found to partially agree within NDACC (Network for the Detection of Atmospheric Composition Change) standards for instruments certified for process studies and satellite validation. Vertical column densities of ozone from the zenith-sky UV-visible instruments, the FTSs, a Brewer spectrophotometer, and ozonesondes are compared, and found to agree within the combined error estimates of the instruments (15%). NO2 vertical column densities from two of the UV-visible instruments are compared, and are also found to agree within combined error (15%).

Additional Information

© Author(s) 2007. This work is licensed under a Creative Commons License. Published by Copernicus Publications on behalf of the European Geosciences Union. Received: 2 July 2007 – Published in Atmos. Chem. Phys. Discuss.: 16 July 2007. Revised: 2 October 2007 – Accepted: 19 October 2007 – Published: 1 November 2007. MANTRA 2004 was supported by the Canadian Space Agency, the Meteorological Service of Canada, and the Natural Sciences and Engineering Research Council of Canada (NSERC). The UT-GBS instrument was funded by NSERC. The loaned CCD was provided by the manufacturer, JY Horiba of Edison, NJ. The participation of the French SAOZ in the campaign was supported by the Centre National d'Études Spatiales. WinDOAS was kindly provided by C. Fayt and M. Van Roozendael of the Belgian Institute for Space Aeronomy (IASB-BIRA). C. Fayt provided assistance in optimising the WinDOAS settings. Funding for the development of PARIS-IR was provided by the Canadian Foundation for Innovation and the Ontario Innovation Trust. The PARIS-IR team thanks Yony Bresler and A. Michelle Seguin for their work on developing the PARIS-IR flight software. The participation of the DU FTS was supported by the National Aeronautics and Space Administration (NASA). The authors also thank Howard Roscoe and an anonymous reviewer for their comments which improved this manuscript.

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Created:
August 22, 2023
Modified:
October 16, 2023