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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
This study investigates the impact of cumulus parameterization scheme (CPS) with different horizontal grid sizes on the simulation of the local heavy rainfall case over the Korean Peninsula. The Weather Research and Forecasting (WRF)-based real-time forecast system of the Joint Center for High-impact Weather and Climate Research (JHWC) is used. Three CPSs are used for sensitivity experiments: the BMJ (Betts-Miller-Janjic), GD (Grell-Devenyi ensemble), and KF (Kain-Fritsch) CPSs. The heavy rainfall case selected in this study is characterized by low-level jet and low-level transport of warm and moist air. In 27-㎞ simulations (DM1), simulated precipitation is overestimated in the experiment with BMJ scheme, and it is underestimated with GD scheme. The experiment with KF scheme shows well-developed precipitation cells in the southern and the central region of the Korean Peninsula, which are similar to the observations. All schemes show wet bias and cold bias in the lower troposphere. The simulated rainfall in 27-㎞ horizontal resolution has influence on rainfall forecast in 9-㎞ horizontal resolution, so the statements on 27-㎞ horizontal resolution can be applied to 9-㎞ horizontal resolution. In the sensitivity experiments of CPS for DM3 (3-㎞ resolution), the experiment with BMJ scheme shows better heavy rainfall forecast than the other experiments. The experiments with CPS in 3-㎞ horizontal resolution improve rainfall forecasts compared to the experiments without CPS, especially in rainfall distribution. The experiments with CPS show lower LCL(Lifted Condensation Level) than those without CPS at the maximum rainfall point, and weaker vertical velocity is simulated in the experiments with CPS compared to the experiments without CPS. It means that CPS suppresses convective instability and influences mainly convective rainfall. Consequently, heavy rainfall simulation with BMJ CPS is better than the other CPSs, and even in 3-㎞ horizontal resolution, CPS should be applied to control convective instability. This conclusion can be generalized by conducting more experiments for a variety of cases over the Korean Peninsula.
목차
Abstract
1. 서론
2. 집중호우 사례
3. 모형 개요 및 자료
4. 모형 결과
5. 결론
사사
참고 문헌
참고문헌 (30)
참고문헌 신청
1. [학술지(정기간행물)] - Betts, A. K. / 1982 / Saturation point analysis of moist convective overturning / J. Atmos. Sci 39 : 1484 ~ 1505
2. [학술지(정기간행물)] - Betts, A. K. / 1986 / A new convective adjustment scheme. Part I: Observational and theoretical basis / Quart. J. Roy. Meteor. Soc 112 : 677 ~ 691
3. [학술지(정기간행물)] - Betts, A. K / 1986 / A new convective adjustment scheme. Part II: Single column tests using GATE wave, BOMEX, ATEX and arctic air-mass data sets / Quart. J. Roy. Meteor. Soc 112 : 693 ~ 709
4. [학술지(정기간행물)] - Black, T. L. / 1994 / The new NMC mesoscale Eta Model: Description and forecast examples / Wea. Forecasting 9 : 265 ~ 278
5. [학술지(정기간행물)] - Deng, A. / 2003 / A shallow convection parameterization for mesoscale models. Part I: Submodel description and preliminary applications / J. Atmos. Sci 60 : 34 ~ 56
2. [학술지(정기간행물)] - Betts, A. K. / 1986 / A new convective adjustment scheme. Part I: Observational and theoretical basis / Quart. J. Roy. Meteor. Soc 112 : 677 ~ 691
3. [학술지(정기간행물)] - Betts, A. K / 1986 / A new convective adjustment scheme. Part II: Single column tests using GATE wave, BOMEX, ATEX and arctic air-mass data sets / Quart. J. Roy. Meteor. Soc 112 : 693 ~ 709
4. [학술지(정기간행물)] - Black, T. L. / 1994 / The new NMC mesoscale Eta Model: Description and forecast examples / Wea. Forecasting 9 : 265 ~ 278
5. [학술지(정기간행물)] - Deng, A. / 2003 / A shallow convection parameterization for mesoscale models. Part I: Submodel description and preliminary applications / J. Atmos. Sci 60 : 34 ~ 56
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