- 한반도내 미세먼지 발생주기의 시공간분포 특성
- ㆍ 저자명
- 장재훈,이화운,이순환,Jang. Jae-Hoon,Lee. Hwa-Woon,Lee. Soon-Hwan
- ㆍ 간행물명
- 한국환경과학회지
- ㆍ 권/호정보
- 2012년|21권 2호|pp.189-202 (14 pages)
- ㆍ 발행정보
- 한국환경과학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
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$ ilde{n}$a period in comparison with that in El ni$ ilde{n}$o period. Mean of typical intensity of $PM_{10}$ evolution in La ni$ ilde{n}$a period estimated to be 30% larger than El ni$ ilde{n}$o period. Thus the global scale meteorological phenomena such as El ni$ ilde{n}$o and La ni$ ilde{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.