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차동현

Cha, Dong-Hyun
High-impact Weather Prediction Lab.
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dc.citation.endPage 2174 -
dc.citation.number 6 -
dc.citation.startPage 2157 -
dc.citation.title JOURNAL OF CLIMATE -
dc.citation.volume 34 -
dc.contributor.author Yoon, Donghyuck -
dc.contributor.author Cha, Dong-Hyun -
dc.contributor.author Lee, Myong-In -
dc.contributor.author Min, Ki-Hong -
dc.contributor.author Jun, Sang-Yoon -
dc.contributor.author Choi, Yonghan -
dc.date.accessioned 2023-12-21T16:11:51Z -
dc.date.available 2023-12-21T16:11:51Z -
dc.date.created 2021-01-04 -
dc.date.issued 2021-03 -
dc.description.abstract 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. -
dc.identifier.bibliographicCitation JOURNAL OF CLIMATE, v.34, no.6, pp.2157 - 2174 -
dc.identifier.doi 10.1175/JCLI-D-20-0422.1 -
dc.identifier.issn 0894-8755 -
dc.identifier.scopusid 2-s2.0-85102875828 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/49276 -
dc.identifier.url https://journals.ametsoc.org/view/journals/clim/34/6/JCLI-D-20-0422.1.xml -
dc.identifier.wosid 000646372800011 -
dc.language 영어 -
dc.publisher AMER METEOROLOGICAL SOC -
dc.title Comparison of Regional Climate Model Performances for Different Types of Heat Waves over South Korea -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Meteorology & Atmospheric Sciences -
dc.relation.journalResearchArea Meteorology & Atmospheric Sciences -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor Asia -
dc.subject.keywordAuthor Extreme events -
dc.subject.keywordAuthor Numerical analysis -
dc.subject.keywordAuthor modeling -
dc.subject.keywordAuthor Regional models -
dc.subject.keywordAuthor Blocking -
dc.subject.keywordPlus ATMOSPHERIC BLOCKING -
dc.subject.keywordPlus FUTURE CHANGES -
dc.subject.keywordPlus SOIL-MOISTURE -
dc.subject.keywordPlus SUMMER HEAT -
dc.subject.keywordPlus IMPACT -
dc.subject.keywordPlus TEMPERATURE -
dc.subject.keywordPlus SIMULATIONS -
dc.subject.keywordPlus PRECIPITATION -
dc.subject.keywordPlus VARIABILITY -
dc.subject.keywordPlus DOWNSTREAM -

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