메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색
질문

논문 기본 정보

자료유형
학술저널
저자정보
최다니엘 (부산대학교) 장임석 (국립환경과학원) 김철희 (부산대학교)
저널정보
한국기상학회 대기 대기 Vol.31 No.1
발행연도
2021.3
수록면
29 - 43 (15page)

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

초록· 키워드

오류제보하기
In this study, two-step statistical approach including Principal Component Analysis (PCA) and Multiple Linear Regression (MLR) was employed, and main meteorological factors explaining the high-PM<SUB>2.5</SUB> episodes were identified in two regions: Seoul and Busan. We first performed PCA to isolate the Principal Component (PC) that is linear combination of the meteorological variables observed at two levels: surface and 850 hPa level. The employed variables at surface are: temperature (T<SUB>2m</SUB>), wind speed, sea level pressure, south-north and west-east wind component and those at 850 hPa upper level variables are: south-north (v<SUB>850</SUB>) and west-east (u<SUB>850</SUB>) wind component and vertical stability. Secondly we carried out MLR analysis and verified the relationships between PM<SUB>2.5</SUB> daily mean concentration and meteorological PCs. Our two-step statistical approach revealed that in Seoul, dominant factors for influencing the high PM<SUB>2.5</SUB> days are mainly composed of upper wind characteristics in winter including positive u<SUB>850</SUB> and negative v<SUB>850</SUB>, indicating that continental (or Siberian) anticyclone had a strong influence. In Busan, however, the dominant factors in explanaining in high PM<SUB>2.5</SUB> concentrations were associated with high T<SUB>2m</SUB> and negative u<SUB>850</SUB> in summer. This is suggesting that marine anticyclone had a considerable effect on Busan’s high PM<SUB>2.5</SUB> with high temperature which is relevant to the vigorous photochemical secondary generation. Our results of both differences and similarities between two regions derived from only statistical approaches imply the high-PM<SUB>2.5</SUB> episodes in Korea show their own unique characteristics and seasonality which are mostly explainable by two layer (surface and upper) mesoscale meteorological variables.

목차

Abstract
1. 서론
2. 자료 및 통계 방법
3. 결과 및 분석
4. 요약 및 결론
REFERENCES

참고문헌 (33)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

이 논문과 함께 이용한 논문

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-ECN-0101-2021-453-001645215