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Effects of the Convective Triggering Process in a Cumulus Parameterization Scheme on the Diurnal Variation of Precipitation over East Asia

Cited 2 time in wos
Cited 2 time in scopus
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Title
Effects of the Convective Triggering Process in a Cumulus Parameterization Scheme on the Diurnal Variation of Precipitation over East Asia
Other Titles
적운 모수화의 대류 시작 기작이 동아시아 강수 일변화 변동성에 미치는 효과
Authors
Han, Ji-Young
Kim, So-Young
Choi, In-Jin
Jin, Emilia Kyung
Subject
Meteorology & Atmospheric Sciences
Keywords
convective triggering process; cumulus parameterization scheme; precipitation diurnal variation
Issue Date
2019-01
Citation
Han, Ji-Young, et al. 2019. "Effects of the Convective Triggering Process in a Cumulus Parameterization Scheme on the Diurnal Variation of Precipitation over East Asia". ATMOSPHERE, 10(1): 28-28.
Abstract
Effects of the convective triggering process in a cumulus parameterization scheme on the diurnal variation of precipitation over East Asia are examined using a regional climate model. Based on a cloud-resolving simulation showing the irrelevance of convective inhibition once convection is initiated and the sensitivity experiments to trigger conditions, the triggering process in the simplified Arakawa-Schubert (SAS) convection scheme is modified to use different convective initiation and termination conditions. The diurnal variation of precipitation frequency with the modified triggering process becomes in phase with the observed one, leading to a delayed afternoon peak in precipitation rate that is in better agreement with the observation. However, the bias in the phase of precipitation intensity is not resolved and the bias of excessive precipitation increases, indicating that adequate representation of not only the triggering process but also other moist convective processes that determine the strength of convection is required for further improvement in the simulation of the diurnal variation of precipitation.
URI
https://repository.kopri.re.kr/handle/201206/10878
DOI
http://dx.doi.org/10.3390/atmos10010028
Appears in Collections  
2018-2019, Investigating Cryospheric Evolution of the Victoria Land, Antarctica -ICE- (18-19) / Lee, Won Sang (PM18020)
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