气候变化领域集成服务门户(CCPortal): Human-perceived temperature changes in south korea and their association with atmospheric circulation patterns

CCPortal

DOI	10.1175/JCLI-D-20-0344.1
	Human-perceived temperature changes in south korea and their association with atmospheric circulation patterns
	Lee H.-J.; Jeon W.; Lee W.-S.; Lee H.W.
发表日期	2021
ISSN	08948755
起始页码	1273
结束页码	1290
卷号	34 期号:4
英文摘要	This study investigates the spatiotemporal characteristics of human-perceived temperature (HPT) data, which describe the joint effects of temperature and humidity on the human body, and examines the related large-scale atmospheric circulation patterns for the summer season (July–August) in South Korea using trend and composite analyses. The increasing trend of HPT was stronger than that of the maximum, mean, and minimum temperatures during 1981–2018. There was an abrupt change in HPT between 1981–2009 and 2010–18, which is likely caused by the northward upper-level subtropical jet, strengthened downward motion, anomalous anticyclones around South Korea, and increased sea surface temperature over the western North Pacific Ocean, which are related to the enhancement and western expansion of the western North Pacific subtropical high (WNPSH). These results highlight the importance of the activity of the WNPSH in the variability of HPT in South Korea. When the western edge of the WNPSH is located in the northwest, a positive geopotential height anomaly at 500 hPa is centered over South Korea, which is associated with high temperatures and low relative humidity. The southwestern extension of the WNPSH modifies the wind circulation pattern and brings warm and moist air from the West (Yellow) Sea along the ridge line of the WNPSH. Eventually, it leads to extreme HPT, associated with high relative humidity and temperature over South Korea, particularly in the southern part of the country. Therefore, we concluded that monitoring and predicting the location of WNPSH and understanding the mechanism and factors influencing the movement of WNPSH under global warming are necessary for predicting and coping with extreme HPT. © 2021 American Meteorological Society. All rights reserved.
英文关键词	Atmospheric circulation; Extreme events; Humidity; Interdecadal variability; Surface temperature
语种	英语
scopus关键词	Atmospheric humidity; Atmospheric pressure; Global warming; Oceanography; Surface waters; Tropics; Atmospheric circulation patterns; Geopotential height anomalies; High relative humidities; Low relative humidities; Sea surface temperature (SST); Spatiotemporal characteristics; Western North Pacific; Wind circulation patterns; Atmospheric temperature; atmospheric circulation; climate change; decadal variation; extreme event; high temperature; humidity; sea surface temperature; trend analysis; Pacific Ocean; Pacific Ocean (North); 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/178638
作者单位	Climate Analytics Department, APEC Climate Center, Busan, South Korea; Division of Earth Environmental System, Pusan National University, Busan, South Korea
推荐引用方式 GB/T 7714	Lee H.-J.,Jeon W.,Lee W.-S.,et al. Human-perceived temperature changes in south korea and their association with atmospheric circulation patterns[J],2021,34(4).
APA	Lee H.-J.,Jeon W.,Lee W.-S.,&Lee H.W..(2021).Human-perceived temperature changes in south korea and their association with atmospheric circulation patterns.Journal of Climate,34(4).
MLA	Lee H.-J.,et al."Human-perceived temperature changes in south korea and their association with atmospheric circulation patterns".Journal of Climate 34.4(2021).