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Gome-2 Total Ozone Columns from Metop-a/Metop-b and Assimilation in the MacC System : Volume 7, Issue 9 (12/09/2014)

By Hao, N.

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Book Id: WPLBN0003999461
Format Type: PDF Article :
File Size: Pages 15
Reproduction Date: 2015

Title: Gome-2 Total Ozone Columns from Metop-a/Metop-b and Assimilation in the MacC System : Volume 7, Issue 9 (12/09/2014)  
Author: Hao, N.
Volume: Vol. 7, Issue 9
Language: English
Subject: Science, Atmospheric, Measurement
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: copernicus


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Inness, A., Zimmer, W., Valks, P., Koukouli, M. E., D. Spur, R. J., Balis, D. S.,...Zyrichidou, I. (2014). Gome-2 Total Ozone Columns from Metop-a/Metop-b and Assimilation in the MacC System : Volume 7, Issue 9 (12/09/2014). Retrieved from

Description: Institut für Methodik der Fernerkundung (IMF), Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Germany. The two Global Ozone Monitoring Instrument (GOME-2) sensors operated in tandem are flying onboard EUMETSAT's (European Organisation for the Exploitation of Meteorological Satellites) MetOp-A and MetOp-B satellites, launched in October 2006 and September 2012 respectively. This paper presents the operational GOME-2/MetOp-A (GOME-2A) and GOME-2/MetOp-B (GOME-2B) total ozone products provided by the EUMETSAT Satellite Application Facility on Ozone and Atmospheric Chemistry Monitoring (O3M-SAF). These products are generated using the latest version of the GOME Data Processor (GDP version 4.7). The enhancements in GDP 4.7, including the application of Brion–Daumont–Malicet ozone absorption cross sections, are presented here. On a global scale, GOME-2B has the same high accuracy as the corresponding GOME-2A products. There is an excellent agreement between the ozone total columns from the two sensors, with GOME-2B values slightly lower with a mean difference of only 0.55±0.29%. First global validation results for 6 months of GOME-2B total ozone using ground-based measurements show that on average the GOME-2B total ozone data obtained with GDP 4.7 are slightly higher than, both, Dobson observations by about 2.0±1.0% and Brewer observations by about 1.0±0.8%. It is concluded that the total ozone columns (TOCs) provided by GOME-2A and GOME-2B are consistent and may be used simultaneously without introducing systematic effects, which has been illustrated for the Antarctic ozone hole on 18 October 2013. GOME-2A total ozone data have been used operationally in the Copernicus atmospheric service project MACC-II (Monitoring Atmospheric Composition and Climate – Interim Implementation) near-real-time (NRT) system since October 2013. The magnitude of the bias correction needed for assimilating GOME-2A ozone is reduced (to about −6 DU in the global mean) when the GOME-2 ozone retrieval algorithm changed to GDP 4.7.

GOME-2 total ozone columns from MetOp-A/MetOp-B and assimilation in the MACC system

Antón, M., Loyola, D., López, M., Vilaplana, J. M., Bañón, M., Zimmer, W., and Serrano, A.: Comparison of GOME-2/MetOp total ozone data with Brewer spectroradiometer data over the Iberian Peninsula, Ann. Geophys., 27, 1377–1386, doi:10.5194/angeo-27-1377-2009, 2009.; Antón, M., Koukouli, M. E., Kroon, M., McPeters, R. D., Labow, G. J., Balis, D., and Serrano, A.: Global validation of empirically corrected EP-Total Ozone Mapping Spectrometer (TOMS) total ozone columns using Brewer and Dobson ground-based measurements, J. Geophys. Res., 115, D19305, doi:10.1029/2010JD014178, 2010.; Balis, D., Lambert, J.-C., Van Roozendael, M., Loyola, D., Spurr, R., Livschitz, Y., Valks, P., Ruppert, T., Gerard, P., Granville, J., and Amiridis, V.: Ten years of GOME/ERS2 total ozone data-The new GOME data processor(GDP) version 4:2, Ground-based validation and comparisons with TOMS V7/V8, J. Geophys. Res., 112, D07307, doi:10.1029/2005JD006376, 2007a.; Balis, D., Kroon, M., Koukouli, M. E., Brinksma, E. J., Labow, G., Veefkind, J. P., and McPeters, R. D.: Validation of Ozone Monitoring Instrument total ozone column measurements using Brewer and Dobson spectrophotometer ground-based observations, J. Geophys. Res., 112, D24S46, doi:10.1029/2007JD008796, 2007b.; Balis, D., Koukouli, M., Loyola, D., Valks, P., and Hao, N.: Validation report of GOME-2 total ozone products (OTO/O3, NTO/O3) processed with GDP 4.2, SAF/O3M/AUTH/GOME-2VAL/RP/03, 2009.; Balis, D., Koukouli, M., Zyrichidou, E., Loyola, D., Valks, P., and Hao, N.: O3M SAF validation report for O3M-41 and O3M-42, SAF/O3M/AUTH/VRR/03, 2013.; 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., 110, D10305, doi:10.1029/2004JD005559, 2005.; Bhartia, P. K. and Wellemeyer, C.: TOMS-V8 Total O3 algorithm, in: OMI ozone product ATBD Volume II, NASA Goddard Space Flight Center, Greenbelt, MD, USA, 15–32, 2002.; Bhartia, P. K., McPeters, R. D., Mateer, C. L., Flynn, L. E., and Wellemeyer, C.: Algorithm for the estimation of vertical ozone profiles from the backscattered ultraviolet technique, J. Geophys. Res., 101, 18793–18806, doi:10.1029/96JD01165, 1996.; Bhartia, P. K., McPeters, R. D., Flynn, L. E., Taylor, S., Kramarova, N. A., Frith, S., Fisher, B., and DeLand, M.: Solar Backscatter UV (SBUV) total ozone and profile algorithm, Atmos. Meas. Tech., 6, 2533–2548, doi:10.5194/amt-6-2533-2013, 2013.; Bojkov, R. D., Mateer, C., and Hanson, A.: Comparison of ground-based and total ozone mapping spectrometer measurements used in assessing the performance of the global ozone observing system, J. Geophys. Res., 93, 9525–9533, doi:10.1029/JD093iD08p09525, 1988.; 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.; Burrows, J., Richter, A., Dehn, A., Deters, B., Himmelmann, S., 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. Ra., 61, 509–517, 1999.; Chance, K. and Kurucz, R. L.: An improved high-resolution solar reference spectrum for earth's atmosphere measurements in the ultraviolet, visible, and near infr


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