Show simple item record

dc.contributor.authorDe Backer, H.
dc.contributor.authorDe Muer, D.
dc.coverage.spatialUccle/Ukkel
dc.coverage.temporal20th century
dc.date1998
dc.date.accessioned2016-03-07T17:14:11Z
dc.date.accessioned2021-12-09T09:53:00Z
dc.date.available2016-03-07T17:14:11Z
dc.date.available2021-12-09T09:53:00Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/8515
dc.descriptionIn Uccle the total ozone content of the atmosphere is measured since 1971. With a Dobson spectrophotometer and since 1983 with a Brewer spectrophotometer. For observations on the direct sun, total ozone can be derived analytically. To handle the zenith observations an empirical method has to be implemented for each instrument and each location. In Uccle direct sun observations are often prevented by clouds. Therefore, special attention must be paid at the zenith sky observations. The zenith observations are separated in two groups, zenith blue and zenith cloudy. For the zenith blue values a polynomial is determined by a least squares method, using the data of quasi-simultaneous direct sun and zenith observations. For the observations with clouds a correction, linear dependent on the total ozone content, is introduced. In this way the mean difference between daily means based on direct sun and on zenith observations is-0.1±and -0.1±1.5% for the Dobson and Brewer instrument, respectively.
dc.languageeng
dc.publisherIRM
dc.publisherKMI
dc.publisherRMI
dc.relation.ispartofseriesPublication scientifique et technique n° - Wetenschappelijke en technische publicatie nr.
dc.titleZenith Observations of total ozone in Uccle
dc.typeBook
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceGeneral Public
dc.audienceScientific
dc.subject.freeObservations
dc.subject.freeOzone
dc.subject.freeUccle
dc.source.volume6
dc.source.issuePublication scientifique et technique n° - Wetenschappelijke en technische publicatie nr.
dc.source.page12
Orfeo.peerreviewedYes


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record