气候变化领域集成服务门户(CCPortal): Impact of Cloud Microphysics Schemes on Tropical Cyclone Forecast Over the Western North Pacific

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DOI	10.1029/2019JD032288
	Impact of Cloud Microphysics Schemes on Tropical Cyclone Forecast Over the Western North Pacific
	Park J.; Cha D.-H.; Lee M.K.; Moon J.; Hahm S.-J.; Noh K.; Chan J.C.L.; Bell M.
发表日期	2020
ISSN	2169897X
卷号	125 期号:18
英文摘要	In high-resolution numerical modeling, cloud microphysics schemes can affect the forecasting of tropical cyclones (TCs) by controlling the phase changes of water. The simulated TC characteristics such as motion, intensity, and structure can change depending on the number of hydrometeors used in these schemes. In this study, we investigate the sensitivity of real-time track and intensity forecasts of TCs to cloud microphysics schemes using the Weather Research and Forecasting (WRF) model. For the sensitivity test, we selected WRF-single-moment-microphysics Class 3 (WSM3) and Class 6 (WSM6) schemes as simple and sophisticated schemes, respectively. A total of 20 forecasts for 10 TCs were conducted. For TCs moving westward in the subtropics, track forecasts were similar in the different sensitivity tests, although the WSM6 scheme considerably reduced the TC intensity errors. However, for TCs moving to the midlatitudes, the WSM6 scheme improved both track and intensity prediction compared to the WSM3 scheme. Particularly, track errors were prominently reduced by the WSM6 scheme, which realistically captured westward shifted track during the rapid intensification process. This can be attributed to the improved simulations of TC intensity, size, and associated β effect by WSM6 scheme. In contrast, the WSM3 scheme underestimated the above characteristics due to low latent heat release compared to the WSM6 scheme. Consequently, TC track moving northwestward was unreasonably shifted eastward. This indicates that a sophisticated cloud microphysics scheme is necessary to improve the track and intensity forecasts for TCs moving to the midlatitudes. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	cloud microphysics scheme; high-resolution numerical modeling; tropical cyclone
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185763
作者单位	School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan, South Korea; Weather Unit, 10th Fighter Wing, Republic of Korea Airforce, Gyeryong, South Korea; School of Energy and Environment, City University of Hong Kong, Kwoloon, Hong Kong; Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
推荐引用方式 GB/T 7714	Park J.,Cha D.-H.,Lee M.K.,et al. Impact of Cloud Microphysics Schemes on Tropical Cyclone Forecast Over the Western North Pacific[J],2020,125(18).
APA	Park J..,Cha D.-H..,Lee M.K..,Moon J..,Hahm S.-J..,...&Bell M..(2020).Impact of Cloud Microphysics Schemes on Tropical Cyclone Forecast Over the Western North Pacific.Journal of Geophysical Research: Atmospheres,125(18).
MLA	Park J.,et al."Impact of Cloud Microphysics Schemes on Tropical Cyclone Forecast Over the Western North Pacific".Journal of Geophysical Research: Atmospheres 125.18(2020).