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Cha, Dong-Hyun
High-impact Weather Prediction Lab (HWPL)
Research Interests
  • Typhoon Modeling, Regional Climate Modeling, High-impact Weather

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Critical Role of Northern Off-Equatorial Sea Surface Temperature Forcing Associated with Central Pacific El Nino in More Frequent Tropical Cyclone Movements toward East Asia

DC Field Value Language
dc.contributor.author Jin, Chun-Sil -
dc.contributor.author Ho, Chang-Hoi -
dc.contributor.author Kim, Joo-Hong -
dc.contributor.author Lee, Dong-Kyou -
dc.contributor.author Cha, Dong-Hyun -
dc.contributor.author Yeh, Sang-Wook -
dc.date.accessioned 2014-04-09T08:23:15Z -
dc.date.available 2014-04-09T08:23:15Z -
dc.date.created 2013-07-01 -
dc.date.issued 2013-04 -
dc.identifier.citation JOURNAL OF CLIMATE, v.26, no.8, pp.2534 - 2545 -
dc.identifier.issn 0894-8755 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/2526 -
dc.description.abstract Observational records reveal that the number of tropical cyclones (TCs) approaching East Asia in July-October is positively correlated with sea surface temperatures (SSTs) in the equatorial and northern off-equatorial central Pacific (CP) oceans, indicating the significant impact of CP El Nino (CP-EN). Through experiments using a Weather Research and Forecast (WRF) model-based regional climate model, this study demonstrates that it is northern off-equatorial CP warming, rather than equatorial CP warming, that effectively induces local anomalous steering flows pertinent to the observed increase in TC activity over East Asia during CP-EN. Sensitivity experiments, in which the prescribed CP-EN-related SST anomaly is confined near the equator, do not capture the observed TC increase over East Asia, whereas those including the off-equatorial region successfully reproduce observed atmospheric and TC variabilities. The off-equatorial CP SST anomaly acts to expand the anomalous cyclonic response in the Philippine Sea farther northward. This produces a tunnel effect in the East China Sea, by which more TCs move to East Asian coastal regions (e.g., east China, Taiwan, Korea, and Japan). -
dc.description.statementofresponsibility open -
dc.language ENG -
dc.publisher AMER METEOROLOGICAL SOC -
dc.subject Coastal regions -
dc.subject East China Sea -
dc.subject Philippine seas -
dc.subject Regional climate models -
dc.subject Sea surface temperature (SST) -
dc.subject Sea surface temperatures -
dc.subject Tropical cyclone -
dc.subject Weather research -
dc.title Critical Role of Northern Off-Equatorial Sea Surface Temperature Forcing Associated with Central Pacific El Nino in More Frequent Tropical Cyclone Movements toward East Asia -
dc.type ARTICLE -
dc.identifier.scopusid 2-s2.0-84877826256 -
dc.identifier.wosid 000317954700008 -
dc.type.rims ART -
dc.description.wostc 4 *
dc.description.scopustc 2 *
dc.date.tcdate 2015-02-28 *
dc.date.scptcdate 2014-07-12 *
dc.identifier.doi 10.1175/JCLI-D-12-00287.1 -
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