Impact of Horizontal Resolution and Cumulus Parameterization Scheme on the Simulation of Heavy Rainfall Events over the Korean Peninsula |
| |
| Authors: | Seung-Woo LEE Dong-Kyou LEE and Dong-Eon CHANG |
| |
| Institution: | School of Earth and Environmental Sciences, Seoul National University, Seoul 151-747, Korea,School of Earth and Environmental Sciences, Seoul National University, Seoul 151-747, Korea,National Institute of Meteorological Research, Korea Meteorological Administration, Seoul 156-720, Korea |
| |
| Abstract: | In this paper, we present the results of high-resolution numerical simulations of three heavy rainfall events over the Korean peninsula. The numerical results show that the prediction accuracy for heavy rainfall events improved as horizontal resolution increase. The fine-grid precipitation fields are much closer to the real precipitation fields in the case of large synoptic forcing over the Korean peninsula. In the case of large convective available potential energy (CAPE) and weak synoptic forcing, it seems that even when using high resolution, the models show poor performance to reproduce the observed high precipitation amounts. However, the activation of the cumulus parameterization scheme in the intermediate resolution of 9 km, even at grid spacing of 3 km, had a positive impact on the simulation of heavy rainfall event. |
| |
| Keywords: | High-resolution Cumulus parameterization scheme Heavy rainfall Numerical simulation |
| 本文献已被 CNKI SpringerLink 等数据库收录！ |
| 点击此处可从《大气科学进展》浏览原始摘要信息 |
| 点击此处可从《大气科学进展》下载免费的PDF全文 |
|
