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Measurements of hydrogen cyanide (HCN) and acetylene (C2H 2) from the Infrared Atmospheric Sounding Interferometer (IASI)

dc.contributor.authorDuflot, V.
dc.contributor.authorHurtmans, D.
dc.contributor.authorClarisse, L.
dc.contributor.authorR'honi, Y.
dc.contributor.authorVigouroux, C.
dc.contributor.authorDe Maziere, M.
dc.contributor.authorMahieu, E.
dc.contributor.authorServais, C.
dc.contributor.authorClerbaux, C.
dc.contributor.authorCoheur, P.-F.
dc.date2013
dc.date.accessioned2016-03-25T11:11:09Z
dc.date.available2016-03-25T11:11:09Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/2886
dc.descriptionHydrogen cyanide (HCN) and acetylene (C2H2) are ubiquitous atmospheric trace gases with medium lifetime, which are frequently used as indicators of combustion sources and as tracers for atmospheric transport and chemistry. Because of their weak infrared absorption, overlapped by the CO2 Q branch near 720 cm−1, nadir sounders have up to now failed to measure these gases routinely. Taking into account CO2 line mixing, we provide for the first time extensive measurements of HCN and C2H2 total columns at Reunion Island (21° S, 55° E) and Jungfraujoch (46° N, 8° E) in 2009–2010 using observations from the Infrared Atmospheric Sounding Interferometer (IASI). A first order comparison with local ground-based Fourier transform infraRed (FTIR) measurements has been carried out allowing tests of seasonal consistency which is reasonably captured, except for HCN at Jungfraujoch. The IASI data shows a greater tendency to high C2H2 values. We also examine a nonspecific biomass burning plume over austral Africa and show that the emission ratios with respect to CO agree with previously reported values.
dc.languageeng
dc.titleMeasurements of hydrogen cyanide (HCN) and acetylene (C2H 2) from the Infrared Atmospheric Sounding Interferometer (IASI)
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeacetylene
dc.subject.freeatmospheric chemistry
dc.subject.freeatmospheric modeling
dc.subject.freeatmospheric transport
dc.subject.freebiomass burning
dc.subject.freecarbon dioxide
dc.subject.freecombustion
dc.subject.freecyanide
dc.subject.freeinterferometer
dc.subject.freetrace gas
dc.subject.freeAfrica
dc.subject.freeBern [Switzerland]
dc.subject.freeJungfraujoch
dc.subject.freeMascarene Islands
dc.subject.freeReunion
dc.subject.freeSwitzerland
dc.source.titleAtmospheric Measurement Techniques
dc.source.volume6
dc.source.issue4
dc.source.page917-925
Orfeo.peerreviewedYes
dc.identifier.doi10.5194/amt-6-917-2013
dc.identifier.scopus2-s2.0-84882759273


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