한반도내 미세먼지 발생주기의 시공간분포 특성

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장재훈;이화운;이순환
Jang, Jae-Hoon;Lee, Hwa-Woon;Lee, Soon-Hwan

  • 투고 : 2011.11.07
  • 심사 : 2012.01.26
  • 발행 : 2012.02.29

초록

Power spectral analysis for $PM_{10}$ observed at 10 cities in the Korean Peninsula from 2004 to 2010 was carried out to examine the spatial and temporal features of $PM_{10}$ evolution cycle. The power spectrum analysis proposed 9 typical cycles (0.5 day, 1day, 5.4day, 8~10day, 19~21day, 26day, 56day, 180day and 365day) for $PM_{10}$ evolution and the cycles are strongly associated with dilution and transportation due to the meterological influence. The spectrum intensity of 5.4day and 26day $PM_{10}$ evolution cycles mainly depend on the advection cycles of synoptic pressures system and long-term variation of climatological forcing, respectively. The intensity of $PM_{10}$ evolution with longer temporal cycles than one day tends to be stronger in La ni$\tilde{n}$a period in comparison with that in El ni$\tilde{n}$o period. Mean of typical intensity of $PM_{10}$ evolution in La ni$\tilde{n}$a period estimated to be 30% larger than El ni$\tilde{n}$o period. Thus the global scale meteorological phenomena such as El ni$\tilde{n}$o and La ni$\tilde{n}$a also can influence the variation of wind system in the Korean Peninsula and $PM_{10}$ evolution. but global scale forcing tends to influence different manner for $PM_{10}$ evolution in accordance with its temporal cycles.

키워드

Power spectral analysis;$PM_{10}$ concentration;Wind;Evolution cycle;Climate condition

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피인용 문헌

  1. 1. A Study on the PM10 and CO2 Concentrations at Public Places vol.16, pp.6, 2015, doi:10.5322/JES.2012.21.2.189
  2. 2. Study on the Characteristics of PM Distribution in Coastal and Inland Cities Correlation and Its Correlation vol.24, pp.11, 2015, doi:10.5322/JES.2012.21.2.189

과제정보

연구 과제 주관 기관 : 기상청