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국회도서관 홈으로 정보검색 소장정보 검색

초록보기

The study examines the effects of parameters that define the characteristics of raindrops on the simulated precipitation during the summer season over Korea using the Weather Research and Forecasting (WRF) Double-Moment 6-class (WDM6) cloud microphysics scheme. Prescribed parameters, defining the characteristics of hydrometeors in the WDM6 scheme such as aR, bR, and fR in the fall velocity (VR) - diameter (DR) relationship and shape parameter (μR) in the number concentration (NR) - DR relationship, presents different values compared to the observed data from Two-Dimensional Video Disdrometer (2DVD) at Boseong standard meteorological observatory during 2018~2019. Three experiments were designed for the heavy rainfall event on August 8, 2022 using WRF version 4.3. These include the control (CNTL) experiment with original parameters in the WDM6 scheme; the MUR experiment, adopting the 50th percentile observation value for μR; and the MEDI experiment, which uses the same μR as MUR, but also includes fitted values for aR, bR, and fR from the 50th percentile of the observed VR - DR relationship. Both sensitivity experiments show improved precipitation simulation compared to the CNTL by reducing the bias and increasing the probability of detection and equitable threat scores. In these experiments, the raindrop mixing ratio increases and its number concentration decreases in the lower atmosphere. The microphysics budget analysis shows that the increase in the rain mixing ratio is due to enhanced source processes such as graupel melting, vapor condensation, and accretion between cloud water and rain. Our study also emphasizes that applying the solely observed μR produces more positive impact in the precipitation simulation.

권호기사

권호기사 목록 테이블로 기사명, 저자명, 페이지, 원문, 기사목차 순으로 되어있습니다.
기사명 저자명 페이지 원문 목차
국내 AERONET 관측 현황과 장기간 에어로졸 광학 깊이의 변화 및 에어로졸 분포 분석 = Current status of AERONET observations in South Korea and analysis of long-term changes in aerosol optical depth and aerosol distribution 장성현, 엄준식 p. 233-255

아시아 여름 몬순에서의 지역별 극한 강수의 역학과 특성 = Dynamics and characteristics of regional extreme precipitation in the Asian summer Monsoon 전하은, 하경자, 김혜렴, 오효은 p. 257-271

기후변화에 따른 미래 항공기 운영 환경 변화 = The impact of climate change on future aircraft operation 박수연, 박상환, 이건희, 정혜정, 강경민, 김공요, 황재돈, 김성 p. 273-281

관측 기반 지상 대기오염물질 농도와 대기혼합고의 변동성 및 상관관계 분석 = Analysis of the variability and correlation between ground-level air pollutant concentrations and atmospheric mixing layer height based on observations 김현경, 정희정, 박정민, 신혜정, 이그림, 이규영, 김해리, 엄준식 p. 283-304

구름미세물리 모수화 방안 내 빗방울의 특성을 정의하는 매개변수가 한반도 여름철 강수 모의에 미치는 영향 = Effects of parameters defining the characteristics of raindrops in the cloud microphysics parameterization on the simulated summer precipitation over the Korean Peninsula 김기병, 김권일, 이규원, 임교선 p. 305-317

최근 동아시아 여름몬순과 북서태평양 여름몬순의 관계 변화 = Recent changes in relationship between East Asian and WNP summer monsoons 신지윤, 이강진, 권민호 p. 319-323

범용 라디오 수신장비를 활용한 라디오존데 관측 = Radiosonde observation using general purpose radio receiving instruments 강현규, 김주완, 박민성, 안상현 p. 325-336