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dc.contributor.authorConstantin, D.-E.
dc.contributor.authorMerlaud, A.
dc.contributor.authorVoiculescu, M.
dc.contributor.authorVan Roozendael, M.
dc.contributor.authorArseni, M.
dc.contributor.authorRosu, A.
dc.contributor.authorGeorgescu, L.
dc.date2017
dc.date.accessioned2017-05-03T13:26:56Z
dc.date.available2017-05-03T13:26:56Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/5240
dc.descriptionIn this work we present the first and longest zenith-sky mobile DOAS (Differential Optical Absorption Spectroscopy) measurements performed in Southeast Europe. The mobile DOAS observations were performed on board of a motor vehicle using an UV-Vis spectrometer during several days on 2015 and 2016 in Romania, Bulgaria, Greece and Republic of Moldova. The target trace gases are: nitrogen dioxide (NO2) and sulfur dioxide (SO2). The mobile DOAS measurements performed on ground represents aproximative 1500km travelled on roads. The highest tropospheric NO2 (1x1017 molec./cm2) and SO2 (~2.5x1018 molec/cm2) content was determined in the Jiu Valley Romania, where large fossil-fuel power station exist. The study also presents comparisons of tropospheric NO2 Vertical Column Density (VCD) deduced from mobile DOAS measurements with Ozone Monitoring Instrument observations. We found a good agreement between ground and space observations for two important urban agglomerations. For Bucuresti city the averaged mobile DOAS observations function of OMI pixel coordinates show 4.11 (±0.61) x1015 molec/cm2 while OMI detected 5.94 (±2.87) x1015 molec/cm2. For the other important city, Thessaloniki, averaged mobile DOAS observations indicate 5.44 ± (0.84) x1015 molec/cm2while OMI space observations presents 5.66 (±1.56) x1015 molec/cm2. We found also that due to the smoothing effect inside the pixel, OMI sensor underestimated the important NO2 emissions located in the Jiu Valley, Romania.
dc.languageeng
dc.titleNO2 and SO2 observations in southeast Europe using mobile DOAS observations
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.source.titleCarpathian Journal of Earth and Environmental Sciences
dc.source.volume12
dc.source.issue2
dc.source.page323-328
Orfeo.peerreviewedYes
dc.identifier.scopus2-s2.0-85017455923


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