气候变化领域集成服务门户(CCPortal): Comparison of regional climate model performances for different types of heat waves over south korea

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DOI	10.1175/JCLI-D-20-0422.1
	Comparison of regional climate model performances for different types of heat waves over south korea
	Yoon D.; Cha D.-H.; Lee M.-I.; Min K.-H.; Jun S.-Y.; Choi Y.
发表日期	2021
ISSN	08948755
起始页码	2157
结束页码	2174
卷号	34 期号:6
英文摘要	South Korea's heat wave events over 39 years (1980-2018) were defined by spatiotemporal criteria, and their quantitative characteristics were analyzed. The duration and intensity of these events ranked highest in 2016 and 2018. An examination of synoptic conditions of heat wave events in 2016 and 2018 based on a reanalysis dataset revealed a positive anomaly of 500-hPa geopotential height, which could have induced warm conditions over the Korean Peninsula in both years. However, a difference prevailed in that there was a blocking high over the Kamchatka Peninsula and a continental thermal high over northern China in 2016, while the expansion of the western North Pacific subtropical high was mainly associated with 2018 heat wave events. Numerical experiments using the Weather Research and Forecasting (WRF) Model were conducted to 1) evaluate how distinct meteorological characteristics of heat wave events in 2016 and 2018 were reproduced by the model, and 2) investigate how they affect extreme temperature events. Typical synoptic features of the 2016 heat wave events (i.e., Kamchatka blocking and continental thermal high) were not captured well by the WRF Model, while those of 2018 were reasonably reproduced. On the contrary, the heat wave event during late August 2016 related to the Kamchatka blocking high was realistically simulated when the blocking was artificially sustained by applying spectral nudging. In conclusion, the existence of a blocking high over the Kamchatka region (i.e., northern Pacific region) is an important feature to accurately predict long-lasting heat waves in East Asia. © 2021 American Meteorological Society. All rights reserved.
英文关键词	Asia; Blocking; Extreme events; Numerical analysis/modeling; Regional models
语种	英语
scopus关键词	Climatology; Weather forecasting; Extreme temperature events; Geo-potential heights; Numerical experiments; Quantitative characteristics; Regional climate modeling; Synoptic conditions; Weather research and forecasting models; Western North Pacific; Climate models; atmospheric blocking; climate modeling; comparative study; extreme event; heat wave; numerical model; regional climate; South Korea
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178680
作者单位	Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan, South Korea; Department of Astronomy and Atmospheric Sciences, Kyungpook National University, Daegu, South Korea; Unit of Arctic Sea-Ice Prediction, Korea Polar Research Institute, Incheon, South Korea
推荐引用方式 GB/T 7714	Yoon D.,Cha D.-H.,Lee M.-I.,et al. Comparison of regional climate model performances for different types of heat waves over south korea[J],2021,34(6).
APA	Yoon D.,Cha D.-H.,Lee M.-I.,Min K.-H.,Jun S.-Y.,&Choi Y..(2021).Comparison of regional climate model performances for different types of heat waves over south korea.Journal of Climate,34(6).
MLA	Yoon D.,et al."Comparison of regional climate model performances for different types of heat waves over south korea".Journal of Climate 34.6(2021).