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 |
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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 | - |