Retrieval of ozone profiles from GOMOS limb scattered measurements
| dc.contributor.author | Tukiainen, S. | |
| dc.contributor.author | Kyrola, E. | |
| dc.contributor.author | Verronen, P.T. | |
| dc.contributor.author | Fussen, D. | |
| dc.contributor.author | Blanot, L. | |
| dc.contributor.author | Barrot, G. | |
| dc.contributor.author | Hauchecorne, A. | |
| dc.contributor.author | Lloyd, N. | |
| dc.date | 2011 | |
| dc.date.accessioned | 2016-03-29T12:43:53Z | |
| dc.date.available | 2016-03-29T12:43:53Z | |
| dc.identifier.uri | https://orfeo.belnet.be/handle/internal/3135 | |
| dc.description | The GOMOS (Global Ozone Monitoring by Occultation of Stars) instrument on board the Envisat satellite measures the vertical composition of the atmosphere using the stellar occultation technique. While the night-time occultations of GOMOS have been proven to be of good quality, the daytime occultations are more challenging due to weaker signal-to-noise ratio. During daytime GOMOS measures limb scattered solar radiation in addition to stellar radiation. In this paper we introduce a retrieval method that determines ozone profiles between 20-60 km from GOMOS limb scattered solar radiances. GOMOS observations contain a considerable amount of stray light at high altitudes. We introduce a method for removing stray light and demonstrate its feasibility by comparing the corrected radiances against those measured by the OSIRIS (Optical Spectrograph & Infra Red Imaging System) instrument. For the retrieval of ozone profiles, a standard onion peeling method is used. The first comparisons with other data sets suggest that the retrieved ozone profiles in 22-50 km are within 10% compared with the GOMOS night-time occultations and within 15% compared with OSIRIS. GOMOS has measured about 350 000 daytime profiles since 2002. The retrieval method presented here makes this large amount of data available for scientific use. | |
| dc.language | eng | |
| dc.title | Retrieval of ozone profiles from GOMOS limb scattered measurements | |
| dc.type | Article | |
| dc.subject.frascati | Earth and related Environmental sciences | |
| dc.audience | Scientific | |
| dc.subject.free | Envisat-1 | |
| dc.subject.free | ozone | |
| dc.subject.free | satellite data | |
| dc.subject.free | signal-to-noise ratio | |
| dc.subject.free | solar radiation | |
| dc.subject.free | Allium cepa | |
| dc.source.title | Atmospheric Measurement Techniques | |
| dc.source.volume | 4 | |
| dc.source.issue | 4 | |
| dc.source.page | 659-667 | |
| Orfeo.peerreviewed | Yes | |
| dc.identifier.doi | 10.5194/amt-4-659-2011 | |
| dc.identifier.scopus | 2-s2.0-84857710752 |
