Aerosols and Clouds

Seasonal dependence of the long-range transport and vertical distribution of free tropospheric aerosols over east Asia: On the basis of aircraft and lidar measurements and isentropic trajectory analysis

  1. Atsushi Matsuki1,
  2. Yasunobu Iwasaka1,
  3. Kazuo Osada1,
  4. Katsuji Matsunaga1,
  5. Mizuka Kido1,
  6. Yayoi Inomata1,
  7. Dmitri Trochkine1,
  8. Chiharu Nishita1,
  9. Takayoshi Nezuka1,
  10. Tetsu Sakai2,
  11. Daizhou Zhang3,
  12. Soung-An Kwon4

Article first published online: 13 AUG 2003

DOI: 10.1029/2002JD003266

Issue

Journal of Geophysical Research: Atmospheres (1984–2012)

Journal of Geophysical Research: Atmospheres (1984–2012)

Volume 108, Issue D23, 16 December 2003

Additional Information

How to Cite

Matsuki, A., et al. (2003), Seasonal dependence of the long-range transport and vertical distribution of free tropospheric aerosols over east Asia: On the basis of aircraft and lidar measurements and isentropic trajectory analysis, J. Geophys. Res., 108, 8663, doi:10.1029/2002JD003266, D23.

Author Information

  1. 1

    Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan

  2. 2

    Japan Science and Technology Corporation, Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan

  3. 3

    Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto, Japan

  4. 4

    Environmental Technology Center, National Institute of Environmental Research, Seoul, Republic of Korea

Publication History

  1. Issue published online: 13 AUG 2003
  2. Article first published online: 13 AUG 2003
  3. Manuscript Accepted: 18 APR 2003
  4. Manuscript Revised: 20 FEB 2003
  5. Manuscript Received: 1 DEC 2002

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Keywords:

  • aerosol;
  • aircraft;
  • Asia;
  • dust;
  • long-range transport;
  • troposphere

[1] Seasonal changes in the vertical structure of free tropospheric aerosols over east Asia, on the basis of aircraft-borne and lidar measurements, and on the pathway of the long-range transport of Asian dust particles inferred from isentropic trajectory analysis are discussed. Aircraft-borne measurements held in situ in the free troposphere over central Japan in 2000–2001 revealed a small in scale yet steady transport of dust in the lower-middle free troposphere (2–6 km altitude) during spring including days with no evident dust outbreak. Such dust, found as background, was observed even in summer in the regions higher than 4 km under the influence of remaining westerly winds but not in the lower regions. From a series of lidar observations over Nagoya (35°N, 137°E), Japan, noticeable changes in aerosol characteristics were obtained in the free troposphere from spring to summer. Taklimakan desert is suggested as possible important source of the background dust.

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