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Analysis of Meteorological Characteristics by Fine Dust Classification on the Korean Peninsula, 2015~2021
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2015년~2021년 한반도 고농도 미세먼지 사례의 유형분류에 따른 기상학적 특징 분석

논문 기본 정보

Type
Academic journal
Author
Joon-Bum Jee (한국외국어대학교) Chang-Rae Cho (한국외국어대학교) Yoo-Jun Kim (국립기상과학원) Seung-Shik Park (전남대학교)
Journal
Korean Meteorological Society Atmosphere-Korea Vol.32 No.2 KCI Accredited Journals ESCI
Published
2022.6
Pages
119 - 133 (15page)

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Topic
본 연구는 한반도의 대기질 변화가 코로나19와 기상학적 변화에 미치는 영향에 대해 미세먼지가 고농도로 발생하는 사례를 분석하고 기상특성이 미세먼지 발생에 미치는 영향을 규명하는 것을 목표로 한다.
📖
Background
한반도의 대기질은 2002년부터 관측되어 왔으며, 본 연구는 2015년부터 최근까지의 PM2.5 농도가 50 μg m-3 이상인 사례를 선정하여 기상 변수와 미세먼지 농도의 관계를 분석하고자 한다.
🔬
Method
연구는 2015년부터 2021년까지 PM2.5 농도 자료를 수집하고, PM2.5 농도가 50 μg m-3 이상인 사례를 선정하여 기상 관측 자료와의 관계를 분석하며, NOAA Hysplit 모델을 통한 역궤적 분석도 포함된다.
🏆
Result
LRT 유형에서 PM2.5 농도가 평균 60 μg m-3 이상으로 나타났으며, LES와 MIX 유형은 상대적으로 낮은 농도를 보였고, 기온은 LRT에서 낮았으며 강수량은 LRT 사례에서 감소하였으나 MIX와 LES에서는 증가하는 경향을 보였다.
Analysis of Meteorological Characteristics by Fine Dust Classification on the Korean Peninsula, 2015~2021
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Abstract· Keywords

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From 2015 to 2021, high-concentration fine dust episodes with a daily average PM<SUB>2.5</SUB> concentration of 50µg m<SUP>-3</SUP> or higher were selected and classified into 3 types [long range transport (LRT), mixed (MIX) and Local emission and stagnant (LES)] using synoptic chart and backward trajectory analysis. And relationships between the fine particle data (PM<SUB>2.5</SUB> and PM<SUB>10</SUB> concentration and PM<SUB>2.5</SUB>/PM<SUB>10</SUB> ratio) and meteorological data (PBLH, Ta, WS, U-wind, and Rainfall) were analyzed using hourly observation for the classification episodes on the Korean Peninsula and the Seoul metropolitan area (SMA). In LRT, relatively large particles such as dust are usually included, and in LES, fine particle is abundant. In the Korean peninsula, the rainfall was relatively increased centered on the middle and western coasts in MIX and LES. In the SMA, wind speed was rather strong in LRT and weak in LES. In LRT, rainfall was centered in Seoul, and in MIX and LES, rainfall appeared around Seoul. However, when the dust cases were excluded, the difference between the LRT and other types of air quality was decreased, but the meteorological variables (Ta, RH, Pa, PBLH, etc.) were further strengthened. In the case of the Korean Peninsula, it is difficult to find a clear relationship because regional influences (topographical elevation, cities and coasts, etc.) are complexly included in a rather wide area. In the SMA, it is analyzed that the effects of urbanization such as the urban heat island centered on Seoul coincide with the sea and land winds, resulting in a combination of high concentrations and meteorological phenomena.
#PM< #SUB> #2.5< #/SUB> # concentration #Backward Trajectory #Long range transport #Local emission stagnant #Seoul Metropolitan Area

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Topic

본 연구는 한반도의 대기질 변화가 코로나19와 기상학적 변화에 미치는 영향에 대해 미세먼지가 고농도로 발생하는 사례를 분석하고 기상특성이 미세먼지 발생에 미치는 영향을 규명하는 것을 목표로 한다.

Background

한반도의 대기질은 2002년부터 관측되어 왔으며, 본 연구는 2015년부터 최근까지의 PM2.5 농도가 50 μg m-3 이상인 사례를 선정하여 기상 변수와 미세먼지 농도의 관계를 분석하고자 한다.

Method

연구는 2015년부터 2021년까지 PM2.5 농도 자료를 수집하고, PM2.5 농도가 50 μg m-3 이상인 사례를 선정하여 기상 관측 자료와의 관계를 분석하며, NOAA Hysplit 모델을 통한 역궤적 분석도 포함된다.

Result

LRT 유형에서 PM2.5 농도가 평균 60 μg m-3 이상으로 나타났으며, LES와 MIX 유형은 상대적으로 낮은 농도를 보였고, 기온은 LRT에서 낮았으며 강수량은 LRT 사례에서 감소하였으나 MIX와 LES에서는 증가하는 경향을 보였다.

주요내용

Contents

Abstract
1. 서론
2. 자료 및 방법
3. 결과
4. 결론
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