Variation of flow properties during a collision event of two mesoscale eddies in the Gulf Stream region from numerical simulation SCIE SCOPUS KCI

DC Field Value Language
dc.contributor.author Chang, Yeon S. -
dc.contributor.author Park, Young-Gyu -
dc.date.accessioned 2020-04-20T03:25:38Z -
dc.date.available 2020-04-20T03:25:38Z -
dc.date.created 2020-01-28 -
dc.date.issued 2015-09 -
dc.identifier.issn 1738-5261 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/2417 -
dc.description.abstract The temporal variation of the flow structure and consequent mixing process during the collision of two counter-rotating mesoscale eddies are investigated by analyzing the HYbrid Coordinate Ocean Model simulation for the Gulf Stream region using Eulerian parameters-Okubo-Weiss parameters and horizontal kinetic energy (KE)-and Lagrangian parameters-finite-size Lyapunov exponent (FSLE) and relative dispersion coefficients (K (r) ). During the collision process, a transport barrier constructed by FSLE ridges develops between the two eddies and hyperbolic points are formed at both ends of the barrier. High values of the shear components of strain (> mean + standard deviation) are observed around the hyperbolic points, indicating possible deformation of the eddy. The magnitudes of spatially averaged KE and FSLE values increase (20% and 25%, respectively) during the collision as the flows around the main eddy become more energetic and dispersive. The Eulerian measures-the relative vorticity and the shear components of strain-show different temporal evolutions. The former does not significantly vary (3%) while the latter has a peak value (34%) at the time of maximum impact of the collision. In contrast, the Lagrangian measures show a similar pattern of temporal variations as both FSLE and K (r) values generally increase (25% and 35%, respectively) during the collision, which indicates increased mixing due to the collision. -
dc.description.uri 1 -
dc.language English -
dc.publisher KOREA OCEAN RESEARCH DEVELOPMENT INST -
dc.subject LAGRANGIAN COHERENT STRUCTURES -
dc.subject SIZE LYAPUNOV EXPONENTS -
dc.subject MEDITERRANEAN SEA -
dc.subject RELATIVE DISPERSION -
dc.subject TRANSPORT -
dc.subject MODEL -
dc.title Variation of flow properties during a collision event of two mesoscale eddies in the Gulf Stream region from numerical simulation -
dc.type Article -
dc.citation.endPage 579 -
dc.citation.startPage 567 -
dc.citation.title OCEAN SCIENCE JOURNAL -
dc.citation.volume 50 -
dc.citation.number 3 -
dc.contributor.alternativeName 장연식 -
dc.contributor.alternativeName 박영규 -
dc.identifier.bibliographicCitation OCEAN SCIENCE JOURNAL, v.50, no.3, pp.567 - 579 -
dc.identifier.doi 10.1007/s12601-015-0052-y -
dc.identifier.scopusid 2-s2.0-84942754233 -
dc.identifier.wosid 000361981700009 -
dc.type.docType Article -
dc.identifier.kciid ART002030117 -
dc.description.journalClass 1 -
dc.subject.keywordPlus LAGRANGIAN COHERENT STRUCTURES -
dc.subject.keywordPlus SIZE LYAPUNOV EXPONENTS -
dc.subject.keywordPlus MEDITERRANEAN SEA -
dc.subject.keywordPlus RELATIVE DISPERSION -
dc.subject.keywordPlus TRANSPORT -
dc.subject.keywordPlus MODEL -
dc.subject.keywordAuthor mesoscale eddy collision -
dc.subject.keywordAuthor Eulerian and Lagrangian parameters -
dc.subject.keywordAuthor Okubo-Weiss parameter -
dc.subject.keywordAuthor finite-size Lyapunov exponent -
dc.subject.keywordAuthor relative dispersion -
dc.relation.journalWebOfScienceCategory Marine & Freshwater Biology -
dc.relation.journalWebOfScienceCategory Oceanography -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.description.journalRegisteredClass kci -
dc.relation.journalResearchArea Marine & Freshwater Biology -
dc.relation.journalResearchArea Oceanography -
Appears in Collections:
Ocean Climate Solutions Research Division > Ocean Circulation & Climate Research Department > 1. Journal Articles
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