{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360004236559610368.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1175/jpo-d-14-0071.1"}},{"identifier":{"@type":"URI","@value":"http://journals.ametsoc.org/jpo/article-pdf/44/12/3079/4540369/jpo-d-14-0071_1.pdf"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Seasonal Mesoscale and Submesoscale Eddy Variability along the North Pacific Subtropical Countercurrent"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title>\n               <jats:p>Located at the center of the western North Pacific Subtropical Gyre, the Subtropical Countercurrent (STCC) is not only abundant in mesoscale eddies, but also exhibits prominent submesoscale eddy features. Output from a ° high-resolution OGCM simulation and a gridded satellite altimetry product are analyzed to contrast the seasonal STCC variability in the mesoscale versus submesoscale ranges. Resolving the eddy scales of &gt;150 km, the altimetry product reveals that the STCC eddy kinetic energy and rms vorticity have a seasonal maximum in May and April, respectively, a weak positive vorticity skewness without seasonal dependence, and an inverse (forward) kinetic energy cascade for wavelengths larger (shorter) than 250 km. In contrast, the submesoscale-resolving OGCM simulation detects that the STCC eddy kinetic energy and rms vorticity both appear in March, a large positive vorticity skewness with strong seasonality, and an intense inverse kinetic energy cascade whose short-wave cutoff migrates seasonally between the 35- and 100-km wavelengths. Using a 2.5-layer, reduced-gravity model with an embedded surface density gradient, the authors show that these differences are due to the seasonal evolution of two concurring baroclinic instabilities. Extracting its energy from the surface density gradient, the frontal instability has a growth time scale of O(7) days, a dominant wavelength of O(50) km, and is responsible for the surface-intensified submesoscale eddy signals. The interior baroclinic instability, on the other hand, extracts energy from the vertically sheared STCC system. It has a slow growth time scale of O(40) days, a dominant wavelength of O(250) km, and, together with the kinetic energy cascaded upscale from the submesoscales, determines the mesoscale eddy modulations.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380004236559610244","@type":"Researcher","foaf:name":[{"@value":"Bo Qiu"}],"jpcoar:affiliationName":[{"@value":"Department of Oceanography, University of Hawai‘i at Mānoa, Honolulu, Hawaii"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004236559610377","@type":"Researcher","foaf:name":[{"@value":"Shuiming Chen"}],"jpcoar:affiliationName":[{"@value":"Department of Oceanography, University of Hawai‘i at Mānoa, Honolulu, Hawaii"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004236559610374","@type":"Researcher","foaf:name":[{"@value":"Patrice Klein"}],"jpcoar:affiliationName":[{"@value":"Laboratoire de Physique des Océans, Ifremer/CNRS/UBO/IRD, Plouzané, France"}]},{"@id":"https://cir.nii.ac.jp/crid/1420845751140640128","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"50359220"},{"@type":"NRID","@value":"1000050359220"},{"@type":"ORCID","@value":"0000-0003-0657-7532"},{"@type":"NRID","@value":"9000016708747"},{"@type":"NRID","@value":"9000258218101"},{"@type":"NRID","@value":"9000309172733"},{"@type":"NRID","@value":"9000334424186"},{"@type":"NRID","@value":"9000347911328"},{"@type":"NRID","@value":"9000283630115"},{"@type":"NRID","@value":"9000258680935"},{"@type":"NRID","@value":"9000241443005"},{"@type":"NRID","@value":"9000324659031"},{"@type":"NRID","@value":"9000016708595"},{"@type":"NRID","@value":"9000022021039"},{"@type":"NRID","@value":"9000303724714"},{"@type":"NRID","@value":"9000309172344"},{"@type":"NRID","@value":"9000017378670"},{"@type":"NRID","@value":"9000256758324"},{"@type":"NRID","@value":"9000356658890"},{"@type":"NRID","@value":"9000007970782"},{"@type":"NRID","@value":"9000399791308"},{"@type":"NRID","@value":"9000392760769"},{"@type":"NRID","@value":"9000356660708"},{"@type":"NRID","@value":"9000253012788"},{"@type":"NRID","@value":"9000003587074"},{"@type":"NRID","@value":"9000412584156"},{"@type":"NRID","@value":"9000256844119"},{"@type":"NRID","@value":"9000254425039"},{"@type":"NRID","@value":"9000326643850"},{"@type":"NRID","@value":"9000333918216"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/hssk"}],"foaf:name":[{"@value":"Hideharu Sasaki"}],"jpcoar:affiliationName":[{"@value":"Application Laboratory, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1420001326231697920","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"40419130"},{"@type":"NRID","@value":"1000040419130"},{"@type":"NRID","@value":"9000016802615"},{"@type":"NRID","@value":"9000242544845"},{"@type":"NRID","@value":"9000347226963"},{"@type":"NRID","@value":"9000256758325"},{"@type":"NRID","@value":"9000412584164"},{"@type":"NRID","@value":"9000304608406"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/ys-bioocean"}],"foaf:name":[{"@value":"Yoshikazu Sasai"}],"jpcoar:affiliationName":[{"@value":"Research and Development Center for Global Change, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan"}]}],"contributor":[{"@id":"https://cir.nii.ac.jp/crid/1892553967921755396","@type":"Researcher","foaf:name":[{"@value":"Research and Development Center for Global Change ; Japan Agency for Marine-Earth Science and Technology (JAMSTEC)"}]},{"@id":"https://cir.nii.ac.jp/crid/1892555066102678656","@type":"Researcher","foaf:name":[{"@value":"Department of Oceanography"}]},{"@id":"https://cir.nii.ac.jp/crid/1892555066102678658","@type":"Researcher","foaf:name":[{"@value":"Laboratoire de physique des océans (LPO)"}]},{"@id":"https://cir.nii.ac.jp/crid/1892555066102678659","@type":"Researcher","foaf:name":[{"@value":"Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)"}]},{"@id":"https://cir.nii.ac.jp/crid/1892555066102678661","@type":"Researcher","foaf:name":[{"@value":"University of Hawai‘i Mānoa (UHM)"}]},{"@id":"https://cir.nii.ac.jp/crid/1892553967921755400","@type":"Researcher","foaf:name":[{"@value":"Department of Oceanography ; University of Hawai‘i [Mānoa] (UHM)"}]},{"@id":"https://cir.nii.ac.jp/crid/1892555066102678657","@type":"Researcher","foaf:name":[{"@value":"Application Laboratory"}]},{"@id":"https://cir.nii.ac.jp/crid/1892553967921755395","@type":"Researcher","foaf:name":[{"@value":"Laboratoire de physique des océans (LPO) ; Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)"}]},{"@id":"https://cir.nii.ac.jp/crid/1892553967921755394","@type":"Researcher","foaf:name":[{"@value":"Application Laboratory ; Japan Agency for Marine-Earth Science and Technology (JAMSTEC)"}]},{"@id":"https://cir.nii.ac.jp/crid/1892555066102678662","@type":"Researcher","foaf:name":[{"@value":"Japan Agency for Marine-Earth Science and Technology (JAMSTEC)"}]},{"@id":"https://cir.nii.ac.jp/crid/1892555066102678660","@type":"Researcher","foaf:name":[{"@value":"Research and Development Center for Global Change"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00223670"},{"@type":"EISSN","@value":"15200485"}],"prism:publicationName":[{"@value":"Journal of Physical Oceanography"}],"dc:publisher":[{"@value":"American Meteorological Society"}],"prism:publicationDate":"2014-09-02","prism:volume":"44","prism:number":"12","prism:startingPage":"3079","prism:endingPage":"3098"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"http://journals.ametsoc.org/jpo/article-pdf/44/12/3079/4540369/jpo-d-14-0071_1.pdf"}],"createdAt":"2014-09-03","modifiedAt":"2020-12-07","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Ocean%20models","dc:title":"Ocean models"},{"@id":"https://cir.nii.ac.jp/all?q=Instability","dc:title":"Instability"},{"@id":"https://cir.nii.ac.jp/all?q=Models%20and%20modeling","dc:title":"Models and modeling"},{"@id":"https://cir.nii.ac.jp/all?q=551","dc:title":"551"},{"@id":"https://cir.nii.ac.jp/all?q=Seasonal%20variability","dc:title":"Seasonal variability"},{"@id":"https://cir.nii.ac.jp/all?q=Circulation/%20Dynamics","dc:title":"Circulation/ Dynamics"},{"@id":"https://cir.nii.ac.jp/all?q=Mesoscale%20processes","dc:title":"Mesoscale processes"},{"@id":"https://cir.nii.ac.jp/all?q=Altimetry","dc:title":"Altimetry"},{"@id":"https://cir.nii.ac.jp/all?q=Variability","dc:title":"Variability"},{"@id":"https://cir.nii.ac.jp/all?q=Eddies","dc:title":"Eddies"},{"@id":"https://cir.nii.ac.jp/all?q=Observational%20techniques%20and%20algorithms","dc:title":"Observational techniques and algorithms"},{"@id":"https://cir.nii.ac.jp/all?q=%5BSDU.STU.OC%5DSciences%20of%20the%20Universe%20%5Bphysics%5D/Earth%20Sciences/Oceanography","dc:title":"[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography"}],"project":[{"@id":"https://cir.nii.ac.jp/crid/1040000782254140288","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"25400473"},{"@type":"JGN","@value":"JP25400473"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25400473/"}],"notation":[{"@language":"ja","@value":"黒潮続流域の混合層内不安定が励起するサブメソスケールの時空間変動"},{"@language":"en","@value":"Temporal and spatial variations of oceanic submesoscales induced by mixed layer instabilities in the Kuroshio Extension region"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360001114210144768","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Mesoscale to Submesoscale Transition in the California Current System. 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