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Low concentrations of near-surface ozone in Siberia Cover

Low concentrations of near-surface ozone in Siberia

Tellus B: Chemical and Physical Meteorology
Volume 64 (2012): Issue 1
By: ,  ,  ,  ,   and    
Open Access
|Jan 2012
Figures & tables

Figures & Tables

Fig. 1. 

Map showing the location of the Zotino station and the major cities and the Monday station (circles), the Trans-Siberian railway (black line) and the flight track from the YAK missions (grey line).

Fig. 2. 

Seasonal variation of 3-hourly O3 values measured at Zotino station from mid-March 2007 to early February 2008.

Table 1. Summary of ozone data used in this study

Data source Platform Period covered Measurement technique Measurement uncertainty References TROICA Train 1999–2009 UV absorption 1 ppbv Elansky et al. (2009) YAK-AEROSIB Aircraft 2006–2008 UV absorption 2 ppbv/2% Paris et al. (2008) Zotino Tower March 2007–March 2008 UV absorption 1 ppbv Skorokhod et al. (2008)
Fig. 3. 

Vertical variation (averaged over 200 m altitude bins) of O3 measured during the YAK summer campaigns. Shown are the median (bold line) as well as the 25th percentile and 75th percentile (thin solid lines). At the bottom, the median, 25th percentile and 75th percentile of summer O3 data from Zotino (horizontal black line) and from TROICA (horizontal red line) are shown.

Table 2. Summary statistics of background O3 measurements from the Zotino station, TROICA and YAK-AEROSIB. The aircraft data have further been separated in data obtained below and above 3000 m above sea level

Min (ppbv) 25%-tile(ppbv) Median (ppbv) Mean (std) (ppbv) 75%-tile(ppbv) Max(ppbv) Fraction of back-ground data (%) Zotin—SPR 19 31 39 38(8) 44 59 88 Zotin—SUM 3 17 23 23(7) 28 45 91 Zotin—AUT 6 16 19 19(5) 23 41 80 Zotin—WIN 12 19 22 22(5) 26 34 89 TROICA5 June 1999 1 18 27 28(13) 37 68 23 TROICA7 June–July 2001 1 18 25 26(11) 32 59 18 TROICA8 March–April 2004 16 39 47 44(8) 49 57 17 TROICA9 October 2005 0 18 27 23(10) 30 46 20 TROICA11 July–August 2007 0 13 19 20(9) 26 42 15 TROICA12 July 2008 0 11 18 17(7) 24 29 4 TROICA 13 November 2009 2 19 22 23(6) 26 40 31 YAK—April 2006 Alt < 3000 m 36 45 50 51(5) 55 74 40 YAK—Sept 2006 Alt < 3000 m 21 33 42 45(12) 56 64 36 YAK—Aug 2007 Alt < 3000 m 18 25 30 33(12) 35 68 32 YAK—July 2008 Alt < 3000 m 17 26 33 35(12) 41 85 28 YAK—April 2006 Alt > 3000 m 53 57 60 60(5) 63 86 36 YAK—Sept 2006 Alt > 3000 m 47 54 59 59(7) 64 92 47 YAK—Aug 2007 Alt > 3000 m 33 56 68 65(12) 74 85 29 YAK—July 2008 Alt > 3000 m 28 53 66 67(20) 80 238 33
Fig. 4. 

R P for ozone data from Zotino, TROICA campaigns, and YAK campaigns combined and divided into spring (SPR), summer (SUM), autumn (AUT), and winter (WIN) (shown from top to bottom, respectively). The panels on the left-hand side show results for low ozone mixing ratios (<25th percentile, R25) and the panels on the right-hand side show results for high ozone mixing ratios (>75 th percentile, R75). The grey dot indicates the position of the Zotino station, and the grey lines show the tracks for the Trans-Siberian railway and the aircraft flights (cf. Fig. 1). Notice that for winter, only data from Zotino were available.

Fig. 5. 

Ozone (ppbv) as a function of the potential emission sensitivity (PES) (s kg–1 m3) and the correlation R for station, train, and aircraft data. The upper row of panels show the total PES and the lower row of panels show the PES only for forest and wetland. Data are separated between the seasons SPR, SUM, AUT, and WIN.

Fig. 6. 

Ozone (ppbv) as a function of the surface interaction as expressed by the function of (s kg–1 m3) and the correlation, R, shown in logarithmic scale for station, train and aircraft data. Data are separated between the seasons SPR, SUM, AUT, and WIN.

DOI: https://doi.org/10.3402/tellusb.v64i0.11607 | Journal eISSN: 1600-0889
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Language: English
Page range: 11607 - 11607
Submitted on: Feb 3, 2011
Published on: Jan 1, 2012
Published by: Stockholm University Press
In partnership with: Paradigm Publishing Services
Keywords:
tropospheric ozone,
Siberian forests,
TROICA,
YAK,
Zotino

© 2012 Ann-Christine Engvall Stjernberg, A. Skorokhod, J. D. Paris, N. Elansky, P. Nédélec, A. Stohl, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

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