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| Titel |
Vertical distribution of trace gas species in the troposphere over the south of West Siberia: comparison of airborne in situ measurements and satellite data |
| VerfasserIn |
Boris D. Belan, Mikhail Yu. Arshinov, Vladimir V. Belov, Yurii V. Gridnev, Denis K. Davydov, Toshinobu Machida, Jean-Daniel Paris, Philippe Nédélec, Alexander V. Fofonov |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250088620
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| Publikation (Nr.) |
 EGU/EGU2014-2745.pdf |
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| Zusammenfassung |
| A comparison of the vertical distributions of O3, CO, CO2 and CH4 derived from the
airborne in situ measurements and satellite observations over the southern part of West
Siberia is presented. In this study we used data of monthly research flights of “Optik“ TU-134
aircraft laboratory carried out from 2012 to 2013 and data retrieved from measurements of
the Infrared Atmospheric Sounding Interferometer (IASI) instrument on-board the MetOp
satellite.
It was found that differences in ozone mixing ratios between the airborne and
satellite data can vary from +3 to +18 ppb at 0.5 km AGL and form -8 to -37 ppb at
7 km AGL, and relative ones ranged from +8 to +30 % and from -12 to -88 %,
respectively.
Differences in CO concentrations varied from +32 to +103 ppb at 0.5 km height and from
-18 to +23 ppb at 3 km. Relative differences were in the range from -4 to +48 % at 0.5 km
and from -8 to +20 % at 7 km.
The maximal difference in all CH4 profiles reached 150 ppb in the atmospheric boundary
layer, and the minimal one was -10 ppb. The average relative difference varied between +2.8
and -0.5 %.
The average difference in CO2 concentration lies within ±1.5 ppm, while individual
profiles are incommensurable. Maximal and minimal differences during the all flights
were observed in the atmospheric boundary layer (+10 and -12 ppm or +2.3 and
-3.3%, respectively). In the free troposphere, relative difference decreased down to
±1.0%.
This work was funded by Research funds for Global Environmental Monitoring in NIES
(Japan), CNRS (France), the French Ministry of Foreign Affairs, CEA (France), Presidium of
RAS (Program No. 4), Brunch of Geology, Geophysics and Mining Sciences of RAS
(Program No. 5), Interdisciplinary integration projects of Siberian Branch of RAS (No. 35,
No. 70, No. 131), Russian Foundation for Basic Research (grants No 14-05-00526,
14-05-00590). |
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