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Midtropospheric frontogenesis associated with antecedent indirect precipitation ahead of tropical cyclones over the Korean Peninsula

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dc.contributor.authorBaek, Eun-Hyuk-
dc.contributor.authorKim, Joo-Hong-
dc.contributor.authorKug, Jong-Seong-
dc.contributor.authorLim, Gyu-Ho-
dc.coverage.spatialKorean Peninsula-
dc.date.accessioned2017-08-03T12:08:08Z-
dc.date.available2017-08-03T12:08:08Z-
dc.date.issued2015-
dc.description.abstractOn the Korean Peninsula (KP), heavy rainfall often precedes the landfall of a tropical cyclone (TC). This rainfall is called antecedent indirect precipitation (AIP), because it occurs well beyond the effective radius of the TC. The present study examines the statistical characteristics and physical mechanism of the AIP produced by TCs that influenced on the KP during the period 1993-2004. Composite analyses demonstrate that the AIP events were accompanied by midtropospheric frontogenesis due to the TC-midlatitude environment interaction. When an approaching TC encountered an approaching midlatitude upper-level trough, this encounter resulted in confluent and deformed flows at the mid-level by the combination of westerlies from the trough and southerlies from the TC. The delicate balance of horizontal winds related to the two systems at the mid-level led to the midtropospheric frontogenesis to the north of the KP. The frontogenetic feature related to the AIP was in marked contrast to those of the remote rainfall event over the KP and the predecessor rainfall event over the United States suggested by previous studies. Quasi-geostrophic (QG) analysis demonstrates that the midtropospheric front induced thermally direct circulation, which led to ascending motion over the KP. Consequently, the midtropospheric front helped to intensify the AIP, together with the convective instability that was amplified by the transport of warm and moist air along the conduit between the TC and subtropical high.-
dc.languageEnglish-
dc.subjectMeteorology & Atmospheric Sciences-
dc.subjectOceanography-
dc.titleMidtropospheric frontogenesis associated with antecedent indirect precipitation ahead of tropical cyclones over the Korean Peninsula-
dc.typeArticle-
dc.identifier.bibliographicCitationBaek, Eun-Hyuk, et al. 2015. "Midtropospheric frontogenesis associated with antecedent indirect precipitation ahead of tropical cyclones over the Korean Peninsula". <em>TELLUS SERIES A-DYNAMIC METEOROLOGY AND OCEANOGRAPHY</em>, 67(1): 1-19.-
dc.citation.titleTELLUS SERIES A-DYNAMIC METEOROLOGY AND OCEANOGRAPHY-
dc.citation.volume67-
dc.citation.number1-
dc.citation.page1-19-
dc.identifier.doi10.3402/tellusa.v67.27476-
dc.subject.keywordAntecedent Indirect Precipitation-
dc.subject.keywordMidtropospheric Frontogenesis-
dc.subject.keywordTC-midlatitude interaction-
dc.identifier.scopusid2-s2.0-84940398611-
dc.identifier.wosid000369828200001-
Appears in Collections  
2014-2016, Investigation of Climate Change Mechanism by Observation and Simulation of Polar Climate for The Past and Present (14-16) / Kim, Seong-Joong
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