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Asian Dust Transport during Blocking Episode Days over Korea

Moon, Yun-Seob;Kim, berly-Strong;Kim, Yoo-Keun;Lim, Yun-Kyu;Oh, In-Bo;Song, Sang-Keun;Bae, Joo-Hyon

  • Published : 2002.02.01

Abstract

Asian dust(or yellow sand) occurs mainly in spring and occasionally in winter in east Asia, when the weather conditions are under an upper trough/cut-off low and surface high/low pressure system during blocking episode days associated with the stationary patterns of the upper level jet stream. The transport mechanism for Asian dust during the blocking episode days in spring 2001 was analyzed using the TOMS aerosol index and meteorological mesoscale model 5(MM5). Based on the E vector, an extension of an Eliassen-Palm flux, the blocking episode days were found to be associated with the development of an upper cut-off low and surface cyclones. Concurrently, the occurrence of dust storms was also determined by strong cold advection at the rear of a jet streak, which exhibited a maximum wind speed within the upper jet stream. As such, the transport mechanism for Asian dust from China was due to advection of the isentropic potential vorticity(IPV) and isentropic surfaces associated with tropopause folding. The transport heights for Asian dust during the blocking episode days were found to be associated with the distribution of the isentropes below the IPV At the same time, lee waves propagated by topography affected the downward motion and blocking of Asian dust in China. The Asian dust transported from the dust source regions was deposited by fallout and rain-out with a reinforcing frontogenesis within a surface cyclone, as determined from satellite images using TOMS and GMS5. Accordingly, these results emphasize the importance of forecasting jet streaks, the IPV, and isentropes with geopotential heights in east Asia.

Keywords

Asian dust;the upper trough/cut-off low;blocking episode;E vector;isentropic potential vorticity;surface front;and cyclone

References

  1. Duce, R. A., C. K. Unni, B. J. Ray, J. M. Prospero and J. T. Merril1, 1980, Long-range atmospheric transport of soil dust from Asia to the tropical North Pacific; Temporal variability. Science, 209, 1522-1524 https://doi.org/10.1126/science.209.4464.1522
  2. Iwasaka, U., H. Minouru and K. Nagaya, 1983, The transport and spatial scale of Asian duststorm event of April 1979. Tellus, 35, 189-196
  3. Merrill, J. T., M. Uematsu and R. Bleck, 1989, Meteorological analysis of long range transport of mineral aerosols over the North Pacific. J. Geophys. Res., 94, 8584-8598 https://doi.org/10.1029/JD094iD06p08584
  4. Winchester, J. W. and M. X. Wang, 1989, Acid-base balance in aerosol components of Asia Pacific region. Tellus, 41, 323-337
  5. Okada, K., H. Naruse and T. Tanaka, 1990, X-ray spectrometry of individual Asia duststorm particles over the Japanese islands and the North Pacific ocean. Atmos. Env., 24, 1369-1378 https://doi.org/10.1016/0960-1686(90)90043-M
  6. Mckendry, I. G., J. P. Hacker and R. Stull, 2001, Long-range transport of Asian dust to the lower Fraser valley, British Columbia, Canada. J. Geophys. Res., 106, 18361-18370 https://doi.org/10.1029/2000JD900359
  7. Kim, Y. K., H. W. Lee, J. K. Park and Y. S. Moon, 2001, The stratosphere-troposphere exchange of ozone and aerosols over Korea. Atmos. Env., in press
  8. Tratt, D. M., R. J. Frouin and D. L. Westphal, 2001, April 1998 Asian dust event: A southern California perspective. J. Geophys. Res., 106, 18371-18379 https://doi.org/10.1029/2000JD900758
  9. Sun, J., M. Zhang and T. Liu, 2001, Spatial and temporal characteristics of dust storms in China and its surrounding regions, 1960-1999 : Relations to source area and climate. J. Geophys. Res., 106, 10325-10333 https://doi.org/10.1029/2000JD900665
  10. Murayama, T., N. Sugimoto, I. Uno, K. Kinoshita, K. Aoki, N. Hagiwara, Z. Liu, I. Matsui, T. Sakai, T. Shibata, K. Arao, B. Sohn, J. G. Won, S. C. Yoon, T. Li, J. Zhou, H. Hu, M. Abo, K. Iokibe, R. Koga and Y. Iwasaka, 2001, Ground-based network observation of Asian dust events of April 1998 in east Asia. J. Geophys. Res., 106, 18345-18359 https://doi.org/10.1029/2000JD900554
  11. Uno, I., H. Amano, S. Emori, K. Kinoshita, I. Matsui and N. Sugimoto, 2001, Trans-Pacific yellow sand transport observed in April 1998: A numerical simulation. J. Geophys. Res., 106, 18331-18344 https://doi.org/10.1029/2000JD900748
  12. Carmichael, G. R., I. Uno, M. Phadnis, Y. Zhang and Y. Sunwoo, 1998, Tropospheric ozone production and transport in the spring. time in East Asia. J. Geophys. Res., 103, 10649-10671 https://doi.org/10.1029/97JD03740
  13. Chun, Y., K. O. Boo, J. Kim, S. U. Park and M. Lee, 2001, Synopsis, transport, and physical characteristics of Asian dust in Korea. J. Geophys. Res., 106, 18461-18469 https://doi.org/10.1029/2001JD900184
  14. Carlson, T. N., 1991, Mid-latitude weather systems, HarperCollions Acaddemic. London, UK, 334-337
  15. Austin, J. F., 1980, The blocking of middle latitude westerly winds by planetary waves. Quart. J. Roy. Met. Soc., 106, 327-350 https://doi.org/10.1002/qj.49710644807
  16. Tsou, C. H. and P. J. Smith, 1990, The role of synoptic/planetary-scale interactions during the development of a blocking anticyclone. Tellus, 42, 174-193 https://doi.org/10.1034/j.1600-0870.1990.00015.x
  17. Barry, G. and A. M. Carleton, 2001, Synoptic and dynamic climatology. Routledge, London and New York, USA and Canada, 313-322
  18. Bleck, R. and C. Mattocks, 1984, A preliminary analysis of the role of potential vorticity in Alpine lee cyclogenesis. Beitr. Phys. Atmos., 57, 357-368
  19. Hoskins, B. J., M. E. Mcintyre and A. W. Robertson, 1985, On the use and significance of isentropic potential vorticity maps. Quart. J.R. Met. ., 111. 877-946 https://doi.org/10.1256/smsqj.47001
  20. Uccellini, L. W., D. Keyser, K. F. Brill and C. H. Wash, 1985, The Presidents Day cyclone of 1-19 February 1979 : Influence of upstream trough amplification and associated tropopause folding on rapid cyclogenesis. Mon. Wea. Rev., 113, 962- 988 https://doi.org/10.1175/1520-0493(1985)113<0962:TPDCOF>2.0.CO;2
  21. Uccellini, L. W., 1990, Extratropical cyclones, Compendium of Meteorology. C. W. Newton and E. O. Holopainen, Ed. American Meteorological Society, 81-105
  22. Trenberth, K. E., 1986, An assessment of the impact of transient eddies on the zonal flow during a blocking episode using localized Eliassen-Palm flux diagnostics. J. Atmos. Sci., 38, 2585-2605
  23. Sutcliffe, R. C., and A. G. Forsdyke, 1950, The theory and use of upper air thickness patterns in forcasting. Quart. J. Roy. Meteor. Soc., 76, 189-217 https://doi.org/10.1002/qj.49707632809
  24. Bjerknes, J., 1951, Extratropical cyclones, Compendium of Meteorology, T.F. Malone, Ed. American Meteorological Society. 577-598
  25. Danielsen, E. F., 1968, Stratospheric tropospheric exchange based upon radioactivity, ozone and potential vorticity. J. Atmos. Sci., 25. 502-518 https://doi.org/10.1175/1520-0469(1968)025<0502:STEBOR>2.0.CO;2

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