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dc.contributor.authorLindenmaier, R.
dc.contributor.authorStrong, K.
dc.contributor.authorBatchelor, R.L.
dc.contributor.authorBernath, P.F.
dc.contributor.authorChabrillat, S.
dc.contributor.authorChipperfield, M.P.
dc.contributor.authorDaffer, W.H.
dc.contributor.authorDrummond, J.R.
dc.contributor.authorFeng, W.
dc.contributor.authorJonsson, A.I.
dc.contributor.authorKolonjari, F.
dc.contributor.authorManney, G.L.
dc.contributor.authorMcLinden, C.
dc.contributor.authorMenard, R.
dc.contributor.authorWalker, K.A.
dc.date2011
dc.date.accessioned2016-03-29T12:43:52Z
dc.date.available2016-03-29T12:43:52Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/3099
dc.descriptionFour years of trace gas measurements have been acquired using the Bruker 125HR Fourier Transform Infrared (FTIR) spectrometer installed at the Polar Environment Atmospheric Research Laboratory (PEARL) in the Canadian high Arctic. These have been compared with data from three models, namely the Canadian Middle Atmosphere Model Data Assimilation System (CMAM-DAS), the Global Environmental Multiscale stratospheric model with the online Belgium Atmospheric CHemistry package (GEM-BACH), and the off-line 3D chemical transport model SLIMCAT to assess the total reactive nitrogen, NOy, budget above Eureka, Nunavut (80.05°N, 86.42°W). The FTIR data have been also compared with satellite measurements by the Atmospheric Chemistry Experiment-Fourier Transform Spectrometer (ACE-FTS). The FTIR is able to measure four of the five primary species that form NOy: NO, NO2, HNO3, and ClONO2, while the fifth, N2O5, was obtained using the N2O5/(NO + NO2) ratio derived from the models and ACE-FTS. Combining these results, a four-year time series of NOy 15–40 km partial columns was calculated. Comparisons with each model were made, revealing mean differences (± standard error of the mean) relative to the FTIR of (−16.0 ± 0.6)%, (5.5 ± 1.0)%, and (−5.8 ± 0.4)% for CMAM-DAS, GEM-BACH, and SLIMCAT, respectively. The mean difference between the ACE-FTS and FTIR NOy partial columns was (5.6 ± 2.3)%. While we found no significant seasonal and interannual differences in the FTIR NOy stratospheric columns, the partial columns display nearly twice as much variability during the spring compared to the summer period.
dc.languageeng
dc.titleA study of the Arctic NOy budget above Eureka, Canada
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeAtmospherics
dc.subject.freeBudget control
dc.subject.freeClimatology
dc.subject.freeData processing
dc.subject.freeNitric acid
dc.subject.freeNitrogen oxides
dc.subject.freeResearch laboratories
dc.subject.freeSpacecraft instruments
dc.subject.freeSpectrometers
dc.subject.freeSpectrometry
dc.subject.freeThree dimensional
dc.subject.freeTime series
dc.subject.freeACE-FTS
dc.subject.freeAtmospheric research
dc.subject.freeBelgium
dc.subject.freeChemical transport models
dc.subject.freeFourier transform infrared spectrometer
dc.subject.freeFTIR
dc.subject.freeHigh arctic
dc.subject.freeInterannual
dc.subject.freeMiddle atmosphere model
dc.subject.freeMultiscales
dc.subject.freePartial columns
dc.subject.freePolar environments
dc.subject.freeReactive nitrogen
dc.subject.freeSatellite measurements
dc.subject.freeStandard error of the means
dc.subject.freeThree models
dc.subject.freeTrace gas measurement
dc.subject.freeAtmospheric chemistry
dc.subject.freeassessment method
dc.subject.freeatmospheric chemistry
dc.subject.freeerror analysis
dc.subject.freeFTIR spectroscopy
dc.subject.freemathematical analysis
dc.subject.freemeasurement method
dc.subject.freenitrogen oxides
dc.subject.freenumerical model
dc.subject.freesatellite imagery
dc.subject.freetemporal variation
dc.subject.freetrace gas
dc.subject.freeCanada
dc.subject.freeCanadian Arctic
dc.subject.freeEllesmere Island
dc.subject.freeEureka
dc.subject.freeNunavut
dc.subject.freeQueen Elizabeth Islands
dc.source.titleJournal of Geophysical Research: Atmospheres
dc.source.volume116
dc.source.issue23
dc.source.pageD23302
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/2011JD016207
dc.identifier.scopus2-s2.0-83655202540


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