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Variability of UV-B at four stations in Europe

dc.contributor.authorZerefos, C.S.
dc.contributor.authorBalls, D.S.
dc.contributor.authorBais, A.F.
dc.contributor.authorGillotay, D.
dc.contributor.authorSimon, P.C.
dc.contributor.authorMayer, B.
dc.contributor.authorSeckmeyer, G.
dc.date1997
dc.date.accessioned2017-05-22T13:24:52Z
dc.date.available2017-05-22T13:24:52Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/5484
dc.descriptionThe variability of solar irradiance in the UV-B spectral region is studied at four stations operating well-calibrated spectroradiometers during the period 1991-96. It is confirmed that total ozone is the controlling factor in long-term changes of solar irradiance below 320 run received at the ground. This result is supported by the similar long-term variability under clear sky and all sky conditions during the past five years. The study includes estimates of the amplitude of the annual cycle and estimates of long-term changes. An important result of this note is, that calculated changes in solar irradiance depend on the length of the observational period and that any speculations on its future changes should be treated always with caution. It is estimated that a 2.7% change per year in solar irradiance at 305 nm at Thessaloniki is a rate that could possibly continue in view of the expected continuation of the ozone decline resulting to an increase of 27% per decade, which is comparable to the amplitude of the annual cycle at that station.
dc.languageeng
dc.titleVariability of UV-B at four stations in Europe
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freeMeteorology
dc.subject.freeUltraviolet radiation
dc.subject.freeOzone
dc.subject.freeSolar irradiance variability
dc.subject.freeSolar radiation
dc.subject.freeSolar radiation
dc.subject.freeradiation
dc.subject.freesolar irradiance
dc.subject.freeultraviolet radiation
dc.subject.freeEurope
dc.subject.freeControlling factors
dc.subject.freeLong term change
dc.subject.freeLong-term variability
dc.subject.freeOperating well
dc.subject.freeSolar irradiances
dc.subject.freeSpectral region
dc.subject.freeSpectro-radiometers
dc.subject.freeThessaloniki
dc.source.titleGeophysical Research Letters
dc.source.volume24
dc.source.issue11
dc.source.page1363--1366
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/97GL01177
dc.identifier.scopus2-s2.0-0031158643


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