NO2 AND SO2 OBSERVATIONS IN SOUTHEAST EUROPE USING MOBILE DOAS OBSERVATIONS

被引：0

作者：

Constantin, Daniel-Eduard ^{[1
]}

Merlaud, Alexis ^{[2
]}

Voiculescu, Mirela ^{[1
]}

Van Roozendael, Michel ^{[2
]}

Arseni, Maxim ^{[1
]}

Rosu, Adrian ^{[1
]}

Georgescu, Lucian ^{[1
]}

机构：

[1] Dunarea de Jos Univ Galati, Fac Sci & Environm, European Ctr Excellence Environm, Str Domneasca 111, Galati 800008, Romania

[2] Belgian Inst Space Aeron, Ringlaan 3 Ave Circulaire, B-1180 Brussels, Belgium

来源：

CARPATHIAN JOURNAL OF EARTH AND ENVIRONMENTAL SCIENCES | 2017年 / 12卷 / 02期

关键词：

atmosphere; nitrogen dioxide; sulfur dioxide; mobile DOAS observations; space observations; ABSORPTION CROSS-SECTION; TROPOSPHERIC NO2; NITROGEN-DIOXIDE; MISSION; SCIAMACHY; POLLUTION; NM;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In 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 (1x10(17) molec./cm(2)) and SO2 (2.5x10(18) molec/cm(2)) 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) x10(15) molec/cm(2) while OMI detected 5.94 (+/- 2.87) x10(15) molec/cm2. For the other important city, Thessaloniki, averaged mobile DOAS observations indicate 5.44 +/- (0.84) x10(15) molec/cm(2) while OMI space observations presents 5.66 (+/- 1.56) x10(15) molec/cm(2). 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.

引用

页码：323 / 328

页数：6

共 22 条

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