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Solar proton events of October-November 2003: Ozone depletion in the Northern Hemisphere polar winter as seen by GOMOS/Envisat

dc.contributor.authorSeppälä, A.
dc.contributor.authorVerronen, P.T.
dc.contributor.authorKyrölä, E.
dc.contributor.authorHassinen, S.
dc.contributor.authorBackman, L.
dc.contributor.authorHauchecorne, A.
dc.contributor.authorBertaux, J.L.
dc.contributor.authorFussen, D.
dc.date2004
dc.date.accessioned2017-04-20T12:52:30Z
dc.date.available2017-04-20T12:52:30Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/5073
dc.descriptionObservations of O3 and NO2 made by the GOMOS instrument on board European Space Agency's Envisat satellite have been used to monitor the increase of NO2 and depletion of ozone due to the solar proton events of October-November 2003. For the first time this phenomenon was measured in polar winter conditions by a satellite instrument. Results show NO2 enhancement of several hundred per cent and tens of per cent ozone depletion between 36 and 60 km, an effect which lasts several months after the events. A comparison of the after-event concentrations of NO2 and ozone reveals a strong negative correlation.
dc.languageeng
dc.titleSolar proton events of October-November 2003: Ozone depletion in the Northern Hemisphere polar winter as seen by GOMOS/Envisat
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeClimate change
dc.subject.freeCorrelation methods
dc.subject.freeNitrogen compounds
dc.subject.freeOzone
dc.subject.freeSatellites
dc.subject.freeSolar radiation
dc.subject.freeGOMOS instrument
dc.subject.freeOzone depletion
dc.subject.freePolar winters
dc.subject.freeSolar protons
dc.subject.freeProtons
dc.subject.freeatmospheric chemistry
dc.subject.freeNorthern Hemisphere
dc.subject.freeozone depletion
dc.subject.freesolar activity
dc.source.titleGeophysical Research Letters
dc.source.volume31
dc.source.issue19
dc.source.pageL19107
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/2004GL021042
dc.identifier.scopus2-s2.0-11044231546


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