Monitoring of ozone trend by stellar occultations: the GOMOS instrument
| dc.contributor.author | Bertaux, J.L. | |
| dc.contributor.author | Mégie, G. | |
| dc.contributor.author | Widemann, T. | |
| dc.contributor.author | Chassefière, E. | |
| dc.contributor.author | Pellinen, R. | |
| dc.contributor.author | Kyrola, E. | |
| dc.contributor.author | Korpela, S. | |
| dc.contributor.author | Simon, P. | |
| dc.date | 1991 | |
| dc.date.accessioned | 2017-06-06T12:26:10Z | |
| dc.date.available | 2017-06-06T12:26:10Z | |
| dc.identifier.uri | https://orfeo.belnet.be/handle/internal/5698 | |
| dc.description | As a part of the payload of the first European Polar Platform, the GOMOS instrument has been proposed by a group of 25 scientists from six countries. It consists of a telescope feeding two spectrographs, mounted on a dedicated steerable platform. The transmittance of the atmosphere between 250 and 675 nm is measured by comparing the spectrum of a star outside the atmosphere, and through it. The ozone tangential column is determined from its UV and Chappuis band absorption. This self-calibrated method is particularly well suited for the study of ozone long term trend. The altitude of each single measurement is precisely known (± 50 m), independently of altitude uncertainties. About 25 stellar occultations per orbit, and 350 per day, spread over all latitudes can be performed from 90 km down to 15-20 km of altitude. NO2, NO3, H2O, T(z) and aerosols are also simultaneously determined, important parameters associated to the ozone equilibrium. The ability to measure ozone long-term trends is calculated. | |
| dc.language | eng | |
| dc.title | Monitoring of ozone trend by stellar occultations: the GOMOS instrument | |
| dc.type | Article | |
| dc.subject.frascati | Physical sciences | |
| dc.audience | Scientific | |
| dc.source.title | Advances in Space Research | |
| dc.source.volume | 11 | |
| dc.source.issue | 3 | |
| dc.source.page | 237-242 | |
| Orfeo.peerreviewed | Yes | |
| dc.identifier.doi | 10.1016/0273-1177(91)90426-K | |
| dc.identifier.scopus | 2-s2.0-0000269017 |
