Russian studies of the atmospheric ozone in 2003–2006

Elansky, N. F.

doi:10.1134/s0001433809020066

Cited by 9 publications

(4 citation statements)

References 20 publications

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“…1), the railroad crosses more rural areas. However, a positive gradient of the total O 3 mixing ratios could be observed from Perm towards the east as the train reaches more polluted areas in Eastern Asia (Elansky 2009). …”

Section: Resultsmentioning

confidence: 96%

“…Based on the results of Elansky et al (2009), we apply a moderate criterion for background condition for both TROICA and Zotino data; NO x B2.2 ppbv, NO x B1.2 ppbv, NO x B1.4 ppbv and NO x B2.2 ppbv for spring, summer, autumn, and winter, respectively. Only between 4 and 23% of the TROICA measurements are obtained under background conditions because the train travels across inhabited areas, whereas this fraction is substantially higher, between 80 and 91%, for the Zotino station, the location of which was specifically chosen to sample background conditions.…”

Section: Resultsmentioning

confidence: 99%

“…038 (e.g. Golitsyn et al 2002;Elansky 2009). Nitrogen oxide-and nitrogen dioxide-mixing ratios were measured with AC-30M (TROI-CA-5), TE-42C-TL (TROICA-7, -8, -9) and Teledyne M200AU (TROICA-11, -12, -13) two-channel chemiluminescent gas analysers.…”

Section: Train Measurementsmentioning

confidence: 97%

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Low concentrations of near-surface ozone in Siberia

Stjernberg

Skorokhod

Paris

et al. 2012

Tellus B: Chemical and Physical Meteorology

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International audienceSiberia with its large area covered with boreal forests, wetlands and tundra is believed to be an important sink for ozone via dry deposition and reactions with biogenic volatile organic compounds (BVOCs) emitted by the forests. To study the importance of deposition of ozone in Siberia, we analyse measurements of ozone mixing ratios taken along the Trans-Siberian railway by train, air-borne measurements andpoint measurements at the Zotino station. For all data, we ran the Lagrangian particle dispersion model FLEXPART in backward mode for 20 d, which yields the so-called potential emission sensitivity (PES) fields. These fields give a quantitative measure of where andhow strongly the sampledair masses have been in contact with the surface and hence possible influenced by surface fluxes. These fields are further statistically analysed to identify source andsink regions that are influencing the observedozone. Results show that the source regions for the surface ozone in Siberia are located at lower latitudes: the regions around the Mediterranean Sea, the Middle East, Kazakhstan andChina. Low ozone mixing ratios are associated to transport from North West Russia, the Arctic region, andthe Pacific Ocean. By calculating PES values for both a passive tracer without consideration of removal processes and for an ozone-like tracer where dry deposition processes are included, we are able to quantify the ozone loss occurring en route to the receptor. Strong correlations between low ozone concentrations andthe spatially integratedfootprints from FLEXPART, especially during the period summer to autumn, indicate the importance of the Siberian forests as a sink for tropospheric ozone

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

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Low concentrations of near-surface ozone in Siberia

Stjernberg

Skorokhod

Paris

et al. 2012

Tellus B: Chemical and Physical Meteorology

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“…This may be due to lower NO x emissions and/or more sequestration of NO x as PAN (peroxyacyl nitrates; although PAN can produce O 3 downwind). Also, given their importance for atmospheric environmental issues and the global greenhouse gas budget, more atmospheric measurements of O 3 , its precursors and other pollutants over Siberia are needed (see Elansky, 2012). These data are particularly useful for the validation of atmospheric chemistry models and satellite products.…”

Section: Introductionmentioning

confidence: 99%

Tropospheric ozone over Siberia in spring 2010: remote influences and stratospheric intrusion

Paris¹,

Ancellet²,

Law³

et al. 2013

Tellus B: Chemical and Physical Meteorology

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We have identified and characterised different factors influencing the tropospheric ozone over Siberia during spring 2010. This was done by analysing in-situ measurements of ozone, carbon dioxide, carbon monoxide, and methane mixing ratios measured by continuous analysers during an intensive airborne measurement campaign of the YAK-AEROSIB project, carried out between 15 and 18 April 2010. The analysis and interpretation of the observations, spanning 3000 km and stretching from 800 to 6700 m above ground level, were enhanced using the Lagrangian model FLEXPART to simulate backward air mass transport. The analysis of trace gas variability and simulated origin of air masses showed that plumes coming from east and west of the west Siberian plain and from north-eastern China related to biomass burning and anthropogenic activity had enhanced ozone mixing ratios during transport. In one case, low ozone mixing ratios were observed over a large region in the upper troposphere above 5500 m. The air mass was transported from the marine boundary layer over the Norwegian Sea where O3 background concentrations are low in the spring. The transport was coherent over thousands of kilometres, with no significant mixing with mid–upper troposphere air masses rich in O3. Finally, the stratospheric source of ozone to the troposphere was observed directly in a well-defined stratospheric intrusion. Analysis of this event suggests an input of 2.56±0.29×107 kg of ozone associated with a regional downward flux of 9.75±2.9×1010 molecules cm−2 s−1, smaller than hemispheric climatology

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