대기 (Atmosphere)

  • 제32권4호
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  • Pages.341-351
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  • 2022
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  • 1598-3560(pISSN)
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  • 2288-3266(eISSN)
한국기상학회 (Korean Meteorological Society)
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수치모델을 이용한 인공증우에 따른 PM10 저감효과 분석

Analysis of PM10 Reduction Effects with Artificial Rain Enhancement Using Numerical Models

  • 임윤규 (국립기상과학원 기상응용연구부) ;
  • 김부요 (국립기상과학원 기상응용연구부) ;
  • 장기호 (국립기상과학원 기상응용연구부) ;
  • 차주완 (국립기상과학원 기상응용연구부) ;
  • 이용희 (국립기상과학원 기상응용연구부)
  • Lim, Yun-Kyu (Research Applications Department, National Institute of Meteorological Sciences, KMA) ;
  • Kim, Bu-Yo (Research Applications Department, National Institute of Meteorological Sciences, KMA) ;
  • Chang, Ki-Ho (Research Applications Department, National Institute of Meteorological Sciences, KMA) ;
  • Cha, Joo Wan (Research Applications Department, National Institute of Meteorological Sciences, KMA) ;
  • Lee, Yong Hee (Research Applications Department, National Institute of Meteorological Sciences, KMA)
  • 투고 : 2022.09.14
  • 심사 : 2022.11.11
  • 발행 : 2022.12.31
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초록

Recently, interest in the possibility of a washout effect using artificial rain enhancement technology to reduce high-concentration fine dust is growing. Therefore, in this study, the reduction rate of PM10 concentration according to the amount of artificial rain enhancement was calculated during Asian Dust event which occurred over the Korean Peninsula on March 29, 2021 using air quality model [i.e., Community Multiscale Air Quality (CMAQ)] combined with the mesoscale model for artificial rain enhancement (i.e., WRF-MMS). According to WRF-MMS, the washout effect lasted 5 hours, and the maximum precipitation rate was calculated to be 1.5 mm hr-1. According the CMAQ results, the PM10 reduction rate was up to 22%, and the affected area was calculated to be 6.4 times greater than that of the artificial rain enhancement area. Even if the maximum amount of precipitation per hour is lowered to 0.8 mm hr-1 (about 50% level), the PM10 reduction rate appears to be up to 16%. In other words, it is believed that this technique can be used as a direct method for reducing high-concentration fine dust even when the artificial rain enhancement effect is weak.

키워드

과제정보

이 연구는 기상청 국립기상과학원 기상조절 및 구름물리 연구(KMA2018-00224)의 지원을 받았습니다.

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