References

ACP

Atmospheric Chemistry and Physics

ACP

1680-7324

Copernicus GmbH

Göttingen, Germany

10.5194/acp-7-3571-2007

Impact of using different ozone cross sections on ozone profile retrievals from Global Ozone Monitoring Experiment (GOME) ultraviolet measurements

Liu

¹ ² Chance

¹ Sioris

C. E.

¹ ³ Kurosu

T. P.

Atomic and Molecular Physics Division, Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA

Goddard Earth Sciences and Technology Center, University of Maryland Baltimore County, Baltimore, MD, USA

Atmospheric Science and Technology Directorate, Environment Canada, Toronto, ON, Canada

06 07 2007

7 13 3571 3578

This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

This article is available from http://www.atmos-chem-phys.net/7/3571/2007/acp-7-3571-2007.html

The full text article is available as a PDF file from http://www.atmos-chem-phys.net/7/3571/2007/acp-7-3571-2007.pdf

We investigate the effect of using three different cross section data sets on ozone profile retrievals from Global Ozone Monitoring Experiment (GOME) ultraviolet measurements (289–307 nm, 326–337 nm). These include Bass-Paur, Brion, and GOME flight model cross sections (references below). Using different cross sections can significantly affect the retrievals, by up to 12 Dobson Units (DU, 1 DU=2.69×1016 molecules cm−2) in total column ozone, up to 10 DU in tropospheric column ozone, and up to 100% in retrieved ozone values for individual atmospheric layers. Compared to using the Bass-Paur and GOME flight model cross sections, using the Brion cross sections not only reduces fitting residuals by 15–60% in the Huggins bands, but also improves retrievals, especially in the troposphere, as seen from validation against ozonesonde measurements. Therefore, we recommend using the Brion cross section for ozone profile retrievals from ultraviolet measurements. The total column ozone retrieved using the GOME flight model cross sections is systematically lower, by 7–10 DU, than that retrieved using the Brion and Bass-Paur cross sections and is also systematically lower than Total Ozone Mapping Spectrometer (TOMS) observations. This study demonstrates the need for improved ozone cross section measurements in the ultraviolet to improve profile retrievals of this key atmospheric constituent.

References 1

Bass, A. M. and Paur, R. J.: The ultraviolet cross-sections of ozone, I, The measurements, in: Atmospheric Ozone, edited by: Zerefos, C. S., Ghazi, A., and Reidel, D., Norwell, Mass., 606–610, 1985.

Brion, J., Chakir, A., Charbonnier, J., Daumont, D., Parisse, C., and Malicet, J.: Absorption spectra measurements for the ozone molecule in the 350–830 nm region, J. Atmos. Chem., 30, 291–299, 1998.

Brion, J., Chakir, A., Daumont, D., and Malicet, J.: High-resolution laboratory absorption cross section of O3. Temperature effect, Chem. Phys. Lett., 213(5–6), 610–512, 1993.

Burrows, J. P., Dehn, A., Deters, B., Himmelmann, S., Richter, A., Voigt, S., and Orphal, J.: Atmospheric remote-sensing reference data from GOME: Part 2. Temperature-dependent absorption cross-sections of O3 in the 231–794 nm range, J. Quant. Spectrosc. Radiat. Transfer, 61(4), 509–517, 1999.

Chance, K. V., Burrows, J. P., Perner, D., and Schneider, W.: Satellite measurements of atmospheric ozone profiles, including tropospheric ozone, from ultraviolet/visible measurements in the nadir geometry: a potential method to retrieve tropospheric ozone, J. Quant. Spectrosc. Radiat. Transfer, 57(4), 467–476, 1997.

Daumont, M., Brion, J., Charbonnier, J., and Malicet, J.: Ozone UV spectroscopy I: Absorption cross-sections at room temperature, J. Atmos. Chem., 15, 145–155, 1992.

Hasekamp, O. P. and Landgraf, J.: Ozone profile retrieval from backscattered ultraviolet radiances: The inverse problem solved by regularization, J. Geophys. Res., 106(D8), 8077–8088, 2001.

Hoogen, R., Rozanov, V. V., and Burrows, J. P.: Ozone profiles from GOME satellite data: Algorithm description and first validation, J. Geophys. Res., 104(D7), 8263–8280, 1999.

Liu, X., Chance, K., Sioris, C. E., Spurr, R. J. D., Kurosu, T. P., Martin, R. V., and Newchurch, M. J.: Ozone profile and tropospheric ozone retrievals from Global Ozone Monitoring Experiment: Algorithm description and validation, J. Geophys. Res., 110(D20), D20307, doi:10.1029/2005JD006240, 2005.

Liu, X., Chance, K., Sioris, C. E., Kurosu, T. P., and Newchurch, M. J.: Intercomparison of GOME, ozonesonde, and SAGE-II measurements of ozone: Demonstration of the need to homogenize available ozonesonde datasets, J. Geophys. Res., 101(D14), D114305, doi:10.1029/2005JD006718, 2006.

Malicet, C., Daumont, D., Charbonnier, J., Parisse, C., Chakir, A., and Brion, J.: Ozone UV spectroscopy, II. Absorption cross-sections and temperature dependence, J. Atmos. Chem., 21, 263–273, 1995.

McPeters, R. D., Labow, G. J., and Logan, J. A.: Ozone climatological profiles for satellite retrieval algorithms, J. Geophys. Res., 112(D5), D05308, doi:10.1029/2005JD006823, 2007.

Munro, R., Siddans, R., Reburn, W. J., and Kerridge, B.: Direct measurement of tropospheric ozone from space, Nature, 392, 168–171, 1998.

Orphal, J.: A critical review of the absorption cross-sections of O3 and NO2 in the 240–790 nm region, Part 1. ozone, in ESA Technical Note MO-TN-ESA-GO-0302, ESA-ESTEC, Noordwijk, The Netherlands, 2002.

Orphal, J.: A critical review of the absorption cross-sections of O3 and NO2 in the 240–790 nm region, J. Phtotochem. Photobiol. A., 157, 185–209, 2003.

Orphal, J. and Chance, K.: Ultraviolet and visible absorption cross-sections for HITRAN, J. Quant. Spectrosc. Radiat. Transfer, 82, 491–504, 2003.

Paur, R. J. and Bass, A. M.: The ultraviolet cross-sections of ozone, II. Results and temperature dependence, in: Atmospheric Ozone, edited by: Zerefos, C. S., Ghazi, A., and Reidel, D., Norwell, Mass., 611–616, 1985.

Rothman, L. S., Jacquemart, D., Barbe, A., et al.: The HITRAN 2004 molecular spectroscopic database, J. Quant. Spectrosc. Radiat. Transfer, 96(2), 139–204, 2005.

van der A, R. J., van Oss, R. F., Piters, A. J. M., Fortuin, J. P. F., Meijer, Y. J., and Kelder, H. M.: Ozone profile retrieval from recalibrated GOME data, J. Geophys. Res., 107(D15), 4239, doi:10.1029/2001JD000696, 2002.

van Roozendael, M., Loyola, D., Spurr, R. J. D., et al.: Ten years of GOME/ERS-2 total ozone data – The new GOME data processor (GDP) version 4: 1. Algorithm description, J. Geophys. Res., 111, D14311, doi:10.1029/2005JD006375, 2006.