GOME-2 total ozone columns from MetOp-A/MetOp-B and assimilation in the MACC system
| dc.contributor.author | Hao, N. | |
| dc.contributor.author | Koukouli, M.E. | |
| dc.contributor.author | Inness, A. | |
| dc.contributor.author | Valks, P. | |
| dc.contributor.author | Loyola, D.G. | |
| dc.contributor.author | Zimmer, W. | |
| dc.contributor.author | Balis, D.S. | |
| dc.contributor.author | Zyrichidou, I. | |
| dc.contributor.author | Van Roozendael, M. | |
| dc.contributor.author | Lerot, C. | |
| dc.contributor.author | Spurr, R.J.D. | |
| dc.date | 2014 | |
| dc.date.accessioned | 2016-03-25T09:42:10Z | |
| dc.date.available | 2016-03-25T09:42:10Z | |
| dc.identifier.uri | https://orfeo.belnet.be/handle/internal/2838 | |
| dc.description | 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 g'6 DU in the global mean) when the GOME-2 ozone retrieval algorithm changed to GDP 4.7. | |
| dc.language | eng | |
| dc.title | GOME-2 total ozone columns from MetOp-A/MetOp-B and assimilation in the MACC system | |
| dc.type | Article | |
| dc.subject.frascati | Earth and related Environmental sciences | |
| dc.audience | Scientific | |
| dc.subject.free | algorithm | |
| dc.subject.free | atmospheric chemistry | |
| dc.subject.free | GOME | |
| dc.subject.free | MetOp | |
| dc.subject.free | satellite mission | |
| dc.subject.free | total ozone | |
| dc.source.title | Atmospheric Measurement Techniques | |
| dc.source.volume | 7 | |
| dc.source.issue | 9 | |
| dc.source.page | 2937-2951 | |
| Orfeo.peerreviewed | Yes | |
| dc.identifier.doi | 10.5194/amt-7-2937-2014 | |
| dc.identifier.scopus | 2-s2.0-84907157990 |
