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
조성빈 (제주대학교) 송상근 (제주대학교) 문수환 (제주대학교)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제37권 제2호
발행연도
2021.4
수록면
231 - 247 (17page)

이용수

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

이 논문의 연구 히스토리 (2)

초록· 키워드

오류제보하기
In this study, we investigated the effect of assimilated meteorological fields on the numerical simulation of PM<SUB>2.5</SUB> concentrations during the severe haze event observed over the Seoul metropolitan area (SMA) from February 27 to March 6, 2019. The analysis was performed by two sets of simulation experiments: (1) CMAQ simulation with base WRF run (Base) and (2) CMAQ simulation with grid-nudged WRF run (Nudging) that includes four dimensional data assimilation (FDDA) analysis nudging technique. Overall, the meteorological variables (air temperature, wind speed, and relative humidity) of Nudging case showed a higher improvement than those of Base case, especially wind speed. In addition, the PM<SUB>2.5</SUB> concentrations in the Base case were mostly underestimated in the study area compared to the Nudging case. The meteorological improvements contributed greatly to the increase in PM<SUB>2.5</SUB> concentrations in the Nudging case, and thus, showed good agreement with its observed concentrations, especially to the nighttime PM<SUB>2.5</SUB> increase due to the enhancement of atmospheric stability by reduced wind speed. In terms of spatial distributions, high PM<SUB>2.5</SUB> concentrations in the Nudging case (especially March 3~4) were mostly simulated in the western coastal area, northwestern or southwestern areas of the SMA. Significant differences (≥15 μg/m³) in the mean PM<SUB>2.5</SUB> concentrations between the Nudging and Base cases were found mainly in the northwestern and east-southeast areas of the SMA. The enhanced PM<SUB>2.5</SUB> concentrations might be primarily due to the meteorological conditions (e.g., reduced wind speed or wind convergence) and/or the pollutant transport from strong emission sources (e.g., Chinese or local emissions) along northerly/northwesterly winds caused by analysis nudging effect.

목차

Abstract
1. 서론
2. 재료 및 방법
3. 결과 및 토의
4. 요약 및 결론
References

참고문헌 (0)

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-0101-2021-539-001649667