A Newly Observed Deep Countercurrent in the Subtropical Northwest Pacific SCIE SCOPUS
DC Field | Value | Language |
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dc.contributor.author | Azminuddin, Fuad | - |
dc.contributor.author | Jeon, Dongchull | - |
dc.contributor.author | Kim, Young Ho. | - |
dc.contributor.author | Jang, Chan Joo | - |
dc.contributor.author | Park, Jae Hyoung | - |
dc.date.accessioned | 2022-01-19T10:37:21Z | - |
dc.date.available | 2022-01-19T10:37:21Z | - |
dc.date.created | 2021-08-17 | - |
dc.date.issued | 2021-07 | - |
dc.identifier.issn | 2169-9275 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/42192 | - |
dc.description.abstract | The existence of a deep countercurrent in the subtropical northwest Pacific, named Subtropical Deep Countercurrent (STDCC), has been revealed by moored current-meter data obtained from a buoy system (similar to 21.6 degrees N, similar to 132.8 degrees E) during 4 years (2010-2014). The climatological average of Argo-based absolute geostrophic velocities and ocean reanalyzes have further confirmed the spatial picture of the eastward-flowing STDCC. STDCC is identified as a time-mean feature in the latitudinal range of 19 degrees-25 degrees N with a meridional scale of 200-300 km that persistently appears from 125 degrees to 180 degrees E and slightly shifts to the north as it goes east. Vertically, STDCC is mostly found below 1,000 m with its core located between the depths of 1,250 and 2,000 m, which corresponds to the undercurrent's meridional pattern with increasing depth northward and a meridional space of 2 degrees-4 degrees. Nevertheless, STDCC is distinctive where it lies along similar to 27.6 - sigma theta, which is deeper than the North Equatorial Undercurrent's density layer (similar to 27.0 - sigma theta). The mean velocity of STDCC at 2,000 m observed by mooring measurements was approximately 0.2 +/- 0.15 cm s(-1) with a maximum speed of approximately 5.59 cm s(-1). The ocean reanalyzes also support the existence of STDCC with mean velocity of approximately 0.2-0.6 cm s(-1) west of 145 degrees E and can be as large as 1.6 cm s(-1) at the eastern region. The results show that STDCC is closely related to the westward-propagating eddies. Our finding emphasizes that the convergence of the cyclonic and anticyclonic eddies possibly generates time-mean zonally elongated eastward flows forming STDCC feature. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | AMER GEOPHYSICAL UNION | - |
dc.title | A Newly Observed Deep Countercurrent in the Subtropical Northwest Pacific | - |
dc.type | Article | - |
dc.citation.title | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS | - |
dc.citation.volume | 126 | - |
dc.citation.number | 7 | - |
dc.contributor.alternativeName | Fuad | - |
dc.contributor.alternativeName | 전동철 | - |
dc.contributor.alternativeName | 장찬주 | - |
dc.contributor.alternativeName | 박재형 | - |
dc.identifier.bibliographicCitation | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, v.126, no.7 | - |
dc.identifier.doi | 10.1029/2021JC017272 | - |
dc.identifier.scopusid | 2-s2.0-85112001115 | - |
dc.identifier.wosid | 000681412200023 | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordPlus | EQUATORIAL UNDERCURRENT JETS | - |
dc.subject.keywordPlus | ZONAL FLOWS | - |
dc.subject.keywordPlus | OCEAN | - |
dc.subject.keywordPlus | CLIMATE | - |
dc.subject.keywordPlus | EDDIES | - |
dc.subject.keywordPlus | DRIVEN | - |
dc.subject.keywordPlus | SUBTHERMOCLINE | - |
dc.subject.keywordPlus | CIRCULATION | - |
dc.subject.keywordPlus | CURRENTS | - |
dc.subject.keywordPlus | SERIES | - |
dc.subject.keywordAuthor | General ocean circulation model | - |
dc.subject.keywordAuthor | North Equatorial Undercurrent | - |
dc.subject.keywordAuthor | Subtropical Deep Countercurrent | - |
dc.subject.keywordAuthor | Sverdrup balance | - |
dc.subject.keywordAuthor | westward-propagating eddies | - |
dc.relation.journalWebOfScienceCategory | Oceanography | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Oceanography | - |