{"@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/1362262944584268416.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2000ja900055"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2000JA900055"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2000JA900055"}}],"dc:title":[{"@value":"Geomagnetic negative sudden impulse due to a magnetic cloud observed on May 13, 1995"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>A geomagnetic negative sudden impulse (SI<jats:sub>−</jats:sub>) observed on May 13, 1995, was examined using magnetic field data from ETS VI and GOES 7 in the magnetosphere and ground geomagnetic observation networks. The SI<jats:sup>−</jats:sup> was caused by a sudden decrease in the solar wind dynamic pressure at the front boundary of a magnetic cloud embedded in a density enhancement region. The amplitude and the fall time at Kakioka geomagnetic observatory (magnetic latitude 26.9°, magnetic longitude 208.3°) were 26 nT and 10 min, respectively. Although SI<jats:sup>−</jats:sup> has been considered to be the mirror image of geomagnetic positive sudden impulse (SI<jats:sup>+</jats:sup>) or sudden commencement (SC), we found the polarization distribution of the SI<jats:sup>−</jats:sup> consistent with that of SC. We suggest that the contribution from the longitudinal movement of a twin‐vortex ionospheric current system is dominant to produce the polarization of SC and SI<jats:sup>−</jats:sup>. We also discuss the relationship between the angle at which discontinuities in the solar wind impinge upon the magnetosphere and the geomagnetic response.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380016862136750981","@type":"Researcher","foaf:name":[{"@value":"T. Takeuchi"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944584268288","@type":"Researcher","foaf:name":[{"@value":"T. Araki"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944584268296","@type":"Researcher","foaf:name":[{"@value":"H. Luehr"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944584268289","@type":"Researcher","foaf:name":[{"@value":"O. Rasmussen"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944584268297","@type":"Researcher","foaf:name":[{"@value":"J. Watermann"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944584268294","@type":"Researcher","foaf:name":[{"@value":"D. K. Milling"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944584268291","@type":"Researcher","foaf:name":[{"@value":"I. R. Mann"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944584268290","@type":"Researcher","foaf:name":[{"@value":"K. Yumoto"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944584268292","@type":"Researcher","foaf:name":[{"@value":"K. Shiokawa"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944584268295","@type":"Researcher","foaf:name":[{"@value":"T. Nagai"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"01480227"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Space Physics"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2000-08","prism:volume":"105","prism:number":"A8","prism:startingPage":"18835","prism:endingPage":"18846"},"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%2F2000JA900055"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2000JA900055"}],"createdAt":"2004-02-03","modifiedAt":"2023-09-23","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=550%20-%20Earth%20sciences","dc:title":"550 - Earth sciences"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050282810809477632","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"IMF-By dependence of transient ionospheric flow perturbation associated with sudden impulses: SuperDARN observations"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567183243570176","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"A numerical simulation of a negative solar wind impulse: Revisited"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848658220500864","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Evolution of negative SI‐induced ionospheric flows observed by SuperDARN King Salmon HF radar"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206511968768","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"A numerical simulation of a negative sudden impulse"},{"@language":"ja-Kana","@value":"numerical simulation of a negative sudden impulse"}]},{"@id":"https://cir.nii.ac.jp/crid/2050870367085209856","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Two current systems in the preliminary phase of sudden commencements in the magnetosphere"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2000ja900055"},{"@type":"OPENAIRE","@value":"doi_dedup___::9519083cad56b084e5aac90c6771113c"},{"@type":"CROSSREF","@value":"10.1186/bf03352499_references_DOI_KPLsOOi2C48ybyxHi5yFcpmbFGt"},{"@type":"CROSSREF","@value":"10.1186/s40623-022-01624-3_references_DOI_KPLsOOi2C48ybyxHi5yFcpmbFGt"},{"@type":"CROSSREF","@value":"10.1029/2012ja017526_references_DOI_KPLsOOi2C48ybyxHi5yFcpmbFGt"},{"@type":"CROSSREF","@value":"10.1029/2012ja018093_references_DOI_KPLsOOi2C48ybyxHi5yFcpmbFGt"},{"@type":"CROSSREF","@value":"10.1186/s40623-015-0360-6_references_DOI_KPLsOOi2C48ybyxHi5yFcpmbFGt"}]}