{"@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/1363388843883841536.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/93gl00852"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F93GL00852"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/93GL00852"}}],"dc:title":[{"@value":"Direct detection of solar wind dynamic pressure effect on ground geomagnetic field"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>The scatter plot of the equatorial <jats:italic>D<jats:sub>st</jats:sub></jats:italic> index versus the square root of the dynamic pressure of the solar wind (<jats:italic>P</jats:italic><jats:sup>0.5</jats:sup>) showed a clear upper envelope which linearly increases with increasing <jats:italic>P</jats:italic><jats:sup>0.5</jats:sup>. This upper envelope was interpreted as showing the minimum level of the ring current intensity and thus dependence of the <jats:italic>D<jats:sub>st</jats:sub></jats:italic> index upon <jats:italic>P</jats:italic><jats:sup>0.5</jats:sup>. The similar upper envelope was also found in scatter plots of the nighttime <jats:italic>H</jats:italic>‐component versus <jats:italic>P</jats:italic><jats:sup>0.5</jats:sup> at stations in low and middle latitudes. From inclination of these upper envelopes the coefficients for the assumed linear relationship between <jats:italic>P</jats:italic><jats:sup>0.5</jats:sup> and the ground magnetic field were obtained. The coefficients derived from the envelopes for the <jats:italic>D<jats:sub>st</jats:sub></jats:italic> index and the nighttime <jats:italic>H</jats:italic>‐component at different stations agree well each other and the latter showed no latitudinal variation. The scatter plots also showed a clear linear lower envelope with negative inclination. The ground state of the magnetosphere should be specified by an intersection of the two lines showing upper and lower envelopes in the scatter plot of <jats:italic>D<jats:sub>st</jats:sub></jats:italic> which corresponds to zero <jats:italic>IMF‐ B<jats:sub>z</jats:sub></jats:italic> and the minimum value of the dynamic pressure of the solar wind.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380004236852388609","@type":"Researcher","foaf:name":[{"@value":"T. Araki"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388843883841536","@type":"Researcher","foaf:name":[{"@value":"K. Funato"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388843883841537","@type":"Researcher","foaf:name":[{"@value":"T. Iguchi"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388843883841538","@type":"Researcher","foaf:name":[{"@value":"T. Kamei"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00948276"},{"@type":"EISSN","@value":"19448007"}],"prism:publicationName":[{"@value":"Geophysical Research Letters"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"1993-05-07","prism:volume":"20","prism:number":"9","prism:startingPage":"775","prism:endingPage":"778"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F93GL00852"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/93GL00852"}],"createdAt":"2008-02-06","modifiedAt":"2023-11-22","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050845760765770752","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Relationship between solar wind dynamic pressure and amplitude of geomagnetic sudden commencement (SC)"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004229804252032","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"The prolonged southward IMF‐<i>B<sub>z</sub></i> event of 2–4 May 1998: Solar, interplanetary causes and geomagnetic consequences"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285708267064192","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Magnetic local time and latitude dependence of amplitude of the main impulse (MI) of geomagnetic sudden commencements and its seasonal variation"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567183689446272","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"The interplanetary causes of geomagnetic activity during the 7–17 March 2012 interval: a CAWSES II overview"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848654736210048","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"An evidence for prompt electric field disturbance driven by changes in the solar wind density under northward IMF <i>B<sub>z</sub></i> condition"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681490017152","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Rise time of geomagnetic sudden commencements"},{"@value":"Rise time of geomagnetic sudden commencements —Statistical analysis of ground geomagnetic data—"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/93gl00852"},{"@type":"OPENAIRE","@value":"doi_dedup___::ca7d702f2baf224f798ea47e5340c24e"},{"@type":"CROSSREF","@value":"10.1002/2015ja022185_references_DOI_88XeMHhkRemMiy3cdaASq5cwowt"},{"@type":"CROSSREF","@value":"10.1186/s40623-016-0444-y_references_DOI_88XeMHhkRemMiy3cdaASq5cwowt"},{"@type":"CROSSREF","@value":"10.1186/bf03353411_references_DOI_88XeMHhkRemMiy3cdaASq5cwowt"},{"@type":"CROSSREF","@value":"10.1029/2012ja018006_references_DOI_88XeMHhkRemMiy3cdaASq5cwowt"},{"@type":"CROSSREF","@value":"10.1051/swsc/2013056_references_DOI_88XeMHhkRemMiy3cdaASq5cwowt"},{"@type":"CROSSREF","@value":"10.1002/2016ja022475_references_DOI_88XeMHhkRemMiy3cdaASq5cwowt"}]}