Characteristics of Concentration Variations and Synoptic Conditions by the Lasting Time of Asian Dust

황사의 지속시간에 따른 대기 중 농도변동 및 종관기상장 특성

  • Published : 2004.08.01

Abstract

We determined Asian dust days by constructing the standard of Asian dust using PM$_{10}$ concentrations ($\geq$150 $\mu\textrm{g}$m$^{-3}$ , 24-hr average) and TOMS aerosol index ($\geq$0.7) for 5 years (1998-2002), and grouped Into long-lasted cases (LLCs, $\geq$4 days) and short-lasted cases (SLCs, $\leq$2 days) concerning the mean lasting time (about 3 days) of Asian dust. Further we performed the specific analyses associated with concentration variations and synoptic conditions by using PM$_{10}$ and TOMS data, weather maps during the dusty cases (LLCs and SLCs). As a result, the LLCs (9 cates) had large variations of PM$_{10}$ concentration as the mean of 131.1$\mu\textrm{g}$m$^{-3}$ and the maximum mean of 379.8$\mu\textrm{g}$m$^{-3}$ , and showed dominant features the continuous passage of deep trough caused by blocking effect and weak trough (56%, 5 cases) over Korea. The SLCs (11 cases) had relatively small variations of PM$_{10}$ concentration as the mean of 133.3$\mu\textrm{g}$m$^{-3}$ and the maximum mean of 247.2$\mu\textrm{g}$m$^{-3}$ , and showed passage of one weak trough (64%, 7 cases) over Korea. Thereafter, the case studies (April 7-13, 2002 of LLC and March 23-24, 2000 of SLC) performed by the simulation of MM5 with meteorological variables of the horizontal wind, potential temperature, isentropic potential vorticity, and helped to better understand the features of synoptic conditions in connection with the concentration variations for each case.

References

  1. 한국기상학회지 v.26 no.2 한반도에 수송되는 황사의 특징에 관한 연구 윤용황
  2. 한국환경과학회지 v.2 no.3 1993년 4월 22-24일에 관측된 황사현상에 대한 종관분석 이재규
  3. 한국대기환경학회지 v.16 no.5 겨울철 황사 현상의 특징 전영신;김지영;부경온;김남욱
  4. 한국기상학회지 v.27 no.2 대기 오염 물질 수송과 관련된 동부 아시아 상층 대기의 순환 특성에 관한 연구 전종갑
  5. 한국기상학회지 v.35 no.4 황사의 장거리 수송과 관련된 대기 순환 유형의 분류 전종갑;예상욱;권민호;정용승
  6. 한국대기보전학회지 v.14 no.3 황사의 크기 및 침착량에 대한 수치모의 정관영;박순웅
  7. 한국기상학회지 v.37 no.4 1997~2000년에 발생된 황사에 관한 연구 정용승;김학성;L. Natsagdorj;D. Jugder;Chen Shou-jun
  8. Synoptic-dynamic meteorology in midlatitudes, Vol II. Observations and theory of weather systems Bluestein, H.B.
  9. J. Geophys. Res. v.108 no.D1 Characteristics of biomass burning emission sources, transport and chemical speciation of enhanced springtime ozone profile over the troposphere of Hong Kong area Chan, C.Y.;L.Y. Chan;J.M. Harris;S.J. Oltmans;D. R. Blake;Y. Qin;Y.G. Zheng;X.D. Zheng https://doi.org/10.1029/2001JD001555
  10. J. Geophys. Res. v.106 no.D16 Synopsis, transport, and physical characteristics of Asian dust in Korea Chun, Y.;K.O. Boo;J. Kim;S.U. Park;M. Lee https://doi.org/10.1029/2001JD900184
  11. Weather analysis Djuric, D.
  12. J. Geophys. Res. v.106 no.D17 Sources and distributions of dust aerosols simulated with the GOCART model Ginoux, P.;M. Chin;I. Tegen;J.M. Prospero;B.N. Holben;O. Dubovik;S.J. Lin https://doi.org/10.1029/2000JD000053
  13. Atmos. Environ. v.36 A simulations of long-range transport of Yellow Sand observed in April 1998 in Korea In, H.J.;S.U. Park https://doi.org/10.1016/S1352-2310(02)00361-8
  14. J. of the Environmental Sciences v.10 no.S-4 Long-range transport mechanisms of Asian dust associated with the synoptic weather system Kim, Y.K.;H.W. Lee;Y.S. Moon;S.K. Song
  15. J. Geophys. Res. v.90 no.D7 Modeling atmospheric transport to the Marshall Islands Merrill, J.T.;R. Bleck;L. Avila https://doi.org/10.1029/JD090iD07p12927
  16. J. of the Environmental Sciences v.11 no.2 Asian dust transport during blocking episode days over Korea Moon, Y.S.;Y.K. Kim;Kimberly Strong;Y.K. Lim;I.B. Oh;S.K. Song;J.H. Bae https://doi.org/10.5322/JES.2002.11.2.111
  17. J. Geophys. Res. v.106 no.D16 Ground-based network observation of Asian dust events of April 1998 in east Asia Murayama, T.;N. Sugimoto;I. Uno;K. Kinoshita;K. Aoki;N. Hagiwara;Z. Liu;I. Matsui;T. Sakai;T. Shibata;K. Aro;B.J. Sohn;J.G. Won;S.C. Yoon;T. Li;J. Zhou;H. Hu;M. Abo;K. Iokibe;R. Koga;Y. Iwasaka https://doi.org/10.1029/2000JD900554
  18. J. Geophys. Res. v.108 no.D17 Carbon monoxide, regional-scale transport, and biomass burning in tropical continental Southeast Asia: Observations in rural Thailand Pochanart, P.;H. Akimoto;Y. Kajii;P. Sukasem https://doi.org/10.1029/2002JD003360
  19. J. Geophys. Res. v.106 no.D10 Spatial and temporal characteristics of dust storms in China and its surrounding regions, 1960-1999: Relations to source area and climate Sun, J.;M. Zhang;T. Liu https://doi.org/10.1029/2000JD900665
  20. J. Geophys. Res. v.106 no.D16 Trans-Pacific Yellow Sand transport observed in April 1998: A numerical simulation Uno, I.;H. Amano;S. Emori;K. Kinoshita;I. Matsui;N. Sugimoto https://doi.org/10.1029/2000JD900748
  21. J. Geophys. Res. v.105 no.D22 A deflation module for use in modeling long-range transport of Yellow Sand over East Asia Wang, Z.;H. Ueda;M. Huang https://doi.org/10.1029/2000JD900370
  22. Atmos. Environ. v.33 Dust emission factors for environment of Northern China Xuan, J. https://doi.org/10.1016/S1352-2310(98)00339-2
  23. J. Geophys. Res. v.108 no.D14 Mineral Dust Entrainment and Deposition(DEAD) model: Description and 1990's dust climatology Zender, C.S.;H. Bian;D. Newman https://doi.org/10.1029/2002JD002775