Lidar detection of high concentrations of ozone and aerosol transported from northeastern Asia over Saga, Japan

Osamu Uchino, Tetsu Sakai, Toshiharu Izumi, Tomohiro Nagai, Isamu Morino, Akihiro Yamazaki, Makoto Deushi, Keiya Yumimoto, Takashi Maki, Taichu Y. Tanaka, Taiga Akaho, Hiroshi Okumura, Kohei Arai, Takahiro Nakatsuru, Tsuneo Matsunaga, Tatsuya Yokota

Research output: Contribution to journalArticle

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Abstract

To validate products of the Greenhouse gases Observing SATellite (GOSAT), we observed vertical profiles of aerosols, thin cirrus clouds, and tropospheric ozone with a mobile-lidar system that consisted of a two-wavelength (532 and 1064 nm) polarization lidar and a tropospheric ozone differential absorption lidar (DIAL). We used these lidars to make continuous measurements over Saga (33.24° N, 130.29° E) during 20-31 March 2015. High ozone and high aerosol concentrations were observed almost simultaneously in the altitude range 0.5-1.5 km from 03:00 to 20:00 Japan Standard Time (JST) on 22 March 2015. The maximum ozone volume mixing ratio was ∼110 ppbv. The maxima of the aerosol extinction coefficient and optical depth at 532 nm were 1.2 km-1 and 2.1, respectively. Backward trajectory analysis and the simulations by the Model of Aerosol Species IN the Global AtmospheRe (MASINGAR) mk-2 and the Meteorological Research Institute Chemistry-Climate Model, version 2 (MRI-CCM2), indicated that mineral dust particles from the Gobi Desert and an air mass with high ozone and aerosol (mainly sulfate) concentrations that originated from the North China Plain could have been transported over the measurement site within about 2 days. These high ozone and aerosol concentrations impacted surface air quality substantially in the afternoon of 22 March 2015. After some modifications of its physical and chemical parameters, MRI-CCM2 approximately reproduced the high ozone volume mixing ratio. MASINGAR mk-2 successfully predicted high aerosol concentrations, but the predicted peak aerosol optical thickness was about one-third of the observed value.

Original languageEnglish
Pages (from-to)1865-1879
Number of pages15
JournalAtmospheric Chemistry and Physics
Volume17
Issue number3
DOIs
Publication statusPublished - Feb 8 2017

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lidar
ozone
aerosol
mixing ratio
climate modeling
GOSAT
Asia
detection
atmosphere
extinction coefficient
cirrus
air mass
vertical profile
optical depth
air quality
polarization
desert
trajectory
sulfate
dust

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

Cite this

Lidar detection of high concentrations of ozone and aerosol transported from northeastern Asia over Saga, Japan. / Uchino, Osamu; Sakai, Tetsu; Izumi, Toshiharu; Nagai, Tomohiro; Morino, Isamu; Yamazaki, Akihiro; Deushi, Makoto; Yumimoto, Keiya; Maki, Takashi; Tanaka, Taichu Y.; Akaho, Taiga; Okumura, Hiroshi; Arai, Kohei; Nakatsuru, Takahiro; Matsunaga, Tsuneo; Yokota, Tatsuya.

In: Atmospheric Chemistry and Physics, Vol. 17, No. 3, 08.02.2017, p. 1865-1879.

Research output: Contribution to journalArticle

Uchino, O, Sakai, T, Izumi, T, Nagai, T, Morino, I, Yamazaki, A, Deushi, M, Yumimoto, K, Maki, T, Tanaka, TY, Akaho, T, Okumura, H, Arai, K, Nakatsuru, T, Matsunaga, T & Yokota, T 2017, 'Lidar detection of high concentrations of ozone and aerosol transported from northeastern Asia over Saga, Japan', Atmospheric Chemistry and Physics, vol. 17, no. 3, pp. 1865-1879. https://doi.org/10.5194/acp-17-1865-2017
Uchino, Osamu ; Sakai, Tetsu ; Izumi, Toshiharu ; Nagai, Tomohiro ; Morino, Isamu ; Yamazaki, Akihiro ; Deushi, Makoto ; Yumimoto, Keiya ; Maki, Takashi ; Tanaka, Taichu Y. ; Akaho, Taiga ; Okumura, Hiroshi ; Arai, Kohei ; Nakatsuru, Takahiro ; Matsunaga, Tsuneo ; Yokota, Tatsuya. / Lidar detection of high concentrations of ozone and aerosol transported from northeastern Asia over Saga, Japan. In: Atmospheric Chemistry and Physics. 2017 ; Vol. 17, No. 3. pp. 1865-1879.
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AU - Morino, Isamu

AU - Yamazaki, Akihiro

AU - Deushi, Makoto

AU - Yumimoto, Keiya

AU - Maki, Takashi

AU - Tanaka, Taichu Y.

AU - Akaho, Taiga

AU - Okumura, Hiroshi

AU - Arai, Kohei

AU - Nakatsuru, Takahiro

AU - Matsunaga, Tsuneo

AU - Yokota, Tatsuya

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