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A global inventory of stratospheric NOy from ACE-FTS

dc.contributor.authorJones, A.
dc.contributor.authorQin, G.
dc.contributor.authorStrong, K.
dc.contributor.authorWalker, K.A.
dc.contributor.authorMcLinden, C.A.
dc.contributor.authorToohey, M.
dc.contributor.authorKerzenmacher, T.
dc.contributor.authorBernath, P.F.
dc.contributor.authorBoone, C.D.
dc.date2011
dc.date.accessioned2016-03-29T12:43:51Z
dc.date.available2016-03-29T12:43:51Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/3087
dc.descriptionThe Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) on board the Canadian SCISAT-1 satellite (launched in August 2003) measures over 30 different atmospheric species, including six nitrogen trace gases that are needed to quantify the stratospheric NOy budget. We combine volume mixing ratio (VMR) profiles for NO, NO2, HNO3, N2O5, ClONO2, and HNO4 to determine a zonally averaged NOy climatology on monthly and 3 month combined means (December–February, March–May, June–August, and September–November) at 5° latitude spacing and on 33 pressure surfaces. Peak NOy VMR concentrations (15–20 ppbv) are situated at about 3 hPa (∼40 km) in the tropics, while they are typically lower at about 10 hPa (∼30 km) in the midlatitudes. Mean NOy VMRs are similar in both the northern and southern polar regions, with the exception of large enhancements periodically observed in the upper stratosphere and lower mesosphere. These are primarily due to enhancements of NO due to energetic particle precipitation and downward transport. Other features in the NOy budget are related to descent in the polar vortex, heterogeneous chemistry, and denitrification processes. Comparison of the ACE-FTS NOy budget is made to both the Odin and ATMOS NOy data sets, showing in both cases a good level of agreement, such that relative differences are typically better than 20%. The NOy climatological products are available through the ACE website and are a supplement to the paper.
dc.languageeng
dc.titleA global inventory of stratospheric NOy from ACE-FTS
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeAtmospheric chemistry
dc.subject.freeAtmospherics
dc.subject.freeBudget control
dc.subject.freeClimatology
dc.subject.freeFourier transforms
dc.subject.freeNitric acid
dc.subject.freeNitrogen
dc.subject.freeACE-FTS
dc.subject.freeAtmospheric chemistry experiment
dc.subject.freeAtmospheric species
dc.subject.freeData sets
dc.subject.freeDenitrification process
dc.subject.freeEnergetic particles
dc.subject.freeFourier transform spectrometers
dc.subject.freeGlobal inventories
dc.subject.freeHeterogeneous chemistry
dc.subject.freeMidlatitudes
dc.subject.freePolar Regions
dc.subject.freePolar vortex
dc.subject.freePressure surface
dc.subject.freeSCISAT-1
dc.subject.freeTrace-gases
dc.subject.freeVolume mixing ratios
dc.subject.freeSpacecraft instruments
dc.subject.freeACE 1
dc.subject.freeatmospheric chemistry
dc.subject.freeatmospheric transport
dc.subject.freeclimatology
dc.subject.freeconcentration (composition)
dc.subject.freedata set
dc.subject.freedenitrification
dc.subject.freeFTIR spectroscopy
dc.subject.freeinventory
dc.subject.freemesosphere
dc.subject.freemixing ratio
dc.subject.freenitrous oxide
dc.subject.freepolar region
dc.subject.freepolar vortex
dc.subject.freepressure field
dc.subject.freesatellite imagery
dc.subject.freestratosphere
dc.subject.freetrace gas
dc.subject.freeWorld Wide Web
dc.source.titleJournal of Geophysical Research: Atmospheres
dc.source.volume116
dc.source.issue17
dc.source.pageD17304
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/2010JD015465


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