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Multi-year comparison of stratospheric BrO vertical profiles retrieved from SCIAMACHY limb and ground-based UV-visible measurements
1Belgian Institute for Space Aeronomy (IASB-BIRA), Brussels, Belgium
2Institute for Environmental Physics/Remote Sensing, Univ. of Bremen, Bremen, Germany
3National Institute of Water and Atmospheric Research (NIWA), Omakau, Central Otago,\newline New Zealand
Abstract. Vertical profiles of stratospheric bromine monoxide (BrO) daily retrieved from ENVISAT/SCIAMACHY (ENVIronmental SATellite/SCanning Imaging Absorption spectrometer for Atmospheric CHartographY) limb scatter data and from ground-based UV-visible observations performed at Harestua (60° N, 11° E), Observatoire de Haute-Provence (44° N, 5.5° E), and Lauder (45° S, 170° E) are compared in the 15–27 km altitude range for the period from 2002 until 2006. At the three stations, the SCIAMACHY and ground-based UV-visible profiles agree reasonably well, with relative difference smaller than 23% on average. When comparing the BrO partial columns, the agreement obtained is good, with mean relative differences smaller than 11% and corresponding standard deviations in the 13–19% range. The seasonal variation of the BrO columns at the three stations is consistently captured by both retrievals as well as large BrO column events occurring during the winter and early spring at Harestua which are associated with chlorine activation.
Discussion Paper (PDF, 741 KB) Interactive Discussion (Closed, 4 Comments) Final Revised Paper (AMT)
Citation: Hendrick, F., Rozanov, A., Johnston, P. V., Bovensmann, H., De Mazière, M., Fayt, C., Hermans, C., Kreher, K., Lotz, W., Sinnhuber, B.-M., Theys, N., Thomas, A., Burrows, J. P., and Van Roozendael, M.: Multi-year comparison of stratospheric BrO vertical profiles retrieved from SCIAMACHY limb and ground-based UV-visible measurements, Atmos. Meas. Tech. Discuss., 1, 451-480, 2008. Bibtex EndNote Reference Manager
