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[Upcoming Event] 미 퍼시픽 노스웨스트 국립 연구소의 임교선 박사 APCC 방문해 세미나 주재

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2013.03.13
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미 퍼시픽 노스웨스트 국립 연구소(Pacific Northwest National Laboratory, PNNL)의 임교선 박사가 오는 3월 15일 APEC 기후센터를 방문한다. 그는 15일 오후 2시, APCC 에델바이스 회의실에서 “Investigation of aerosol indirect effects on regional climate using refined physics parameterizations”라는 제목으로 발표를 진행할 예정이다.


이번 세미나는 기후분석 model의 최근 핫 이슈인 aerosol effects model에 대한 내용으로 이를 통해 APCC의 기후분석모델을 개선하기 위한 방향을 모색하는 기회가 될 것으로 보인다.


임교선 박사의 발표 제목과 abstract 등 상세 정보는 다음과 같다. 또한 임 박사의 약력은 첨부문서를 참고할 수 있다.


1. 발표자: 임교선 박사 (Post Doctorate Research Associate, 퍼시픽 노스웨스트 국립 연구소 (PNNL))

2. 발표제목:
Investigation of aerosol indirect effects on regional climate using refined physics parameterizations

3. 일시: 14:00 PM on March 15th, 2013

4. 장소: The Edelweiss Room on the second floor, APCC

5. Abstract

As demonstrated by observational and modeling studies, aerosols can exert a significant influence on convection, with the potential to alter the timing and intensity of precipitation, as well as to provide feedbacks to the large-scale circulation. However, cumulus parameterizations used in climate simulations generally do not include cloud microphysics, so aerosol-cumulus cloud interactions are not fully represented to allow investigation of aerosol effects on convection. Recently, Song and Zhang (2011) developed a physically-based microphysics parameterization for use in the Zhang and McFarlane (ZM) convective parameterization, which allows us to simulate the influence of aerosols on microphysical and dynamical processes for cumulus clouds in regional and global climate model frameworks.

 

We have implemented the new ZM convective parameterization with cloud microphysics and aerosol-cloud interactions into the Weather Research and Forecasting (WRF) model, coupled with the physics package from the Community Atmospheric model (CAM5), which has been newly developed at PNNL. Simulations are being conducted over East Asia to examine the impacts of the new scheme in simulating cloud properties, vertical mass fluxes, and precipitation compared with the original ZM scheme and to assess the significance of aerosol indirect effects from cumulus clouds at the regional scale. Model evaluation and analysis will be presented in selected case studies.