Diagnosing recent CO emissions and ozone evolution in East Asia using coordinated surface observations, adjoint inverse modeling, and MOPITT satellite data

H. Tanimoto, Y. Sawa, S. Yonemura, K. Yumimoto, H. Matsueda, I. Uno, T. Hayasaka, H. Mukai, Y. Tohjima, K. Tsuboi, L. Zhang

研究成果: ジャーナルへの寄稿記事

38 引用 (Scopus)

抄録

Simultaneous ground-based measurements of ozone (O3) and carbon monoxide (CO) were conducted in March 2005 as part of the East Asian Regional Experiment (EAREX) 2005 under the umbrella of the Atmospheric Brown Clouds (ABC) project. Multiple air quality monitoring networks were integrated by performing intercomparison of individual calibration standards and measurement techniques to ensure comparability of ambient measurements, along with providing consistently high time-resolution measurements of O3 and CO at the surface sites in East Asia. Ambient data collected from eight surface stations were compared with simulation results obtained by a regional chemistry transport model to infer recent changes in CO emissions from East Asia. Our inverse estimates of the CO emissions from China up to 2005 suggested an increase of 16% since 2001, in good agreement with the recent MOPITT satellite observations and the bottom-up estimates up to 2006. The O3 enhancement relative to CO in continental pollution plumes traversed in the boundary layer were examined as a function of transport time from the Asian continent to the western Pacific Ocean. The observed ΔO3/ΔCO ratios show increasing tendency during eastward transport events due likely to en-route photochemical O3 formation, suggesting that East Asia is an important O3 source region during spring.

元の言語英語
ページ(範囲)3867-3880
ページ数14
ジャーナルAtmospheric Chemistry and Physics
8
発行部数14
DOI
出版物ステータス出版済み - 7 16 2008

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MOPITT
carbon monoxide
satellite data
ozone
modeling
ground-based measurement
Asia
plume
boundary layer
calibration
pollution
ocean

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

これを引用

Diagnosing recent CO emissions and ozone evolution in East Asia using coordinated surface observations, adjoint inverse modeling, and MOPITT satellite data. / Tanimoto, H.; Sawa, Y.; Yonemura, S.; Yumimoto, K.; Matsueda, H.; Uno, I.; Hayasaka, T.; Mukai, H.; Tohjima, Y.; Tsuboi, K.; Zhang, L.

:: Atmospheric Chemistry and Physics, 巻 8, 番号 14, 16.07.2008, p. 3867-3880.

研究成果: ジャーナルへの寄稿記事

Tanimoto, H. ; Sawa, Y. ; Yonemura, S. ; Yumimoto, K. ; Matsueda, H. ; Uno, I. ; Hayasaka, T. ; Mukai, H. ; Tohjima, Y. ; Tsuboi, K. ; Zhang, L. / Diagnosing recent CO emissions and ozone evolution in East Asia using coordinated surface observations, adjoint inverse modeling, and MOPITT satellite data. :: Atmospheric Chemistry and Physics. 2008 ; 巻 8, 番号 14. pp. 3867-3880.
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AU - Yumimoto, K.

AU - Matsueda, H.

AU - Uno, I.

AU - Hayasaka, T.

AU - Mukai, H.

AU - Tohjima, Y.

AU - Tsuboi, K.

AU - Zhang, L.

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