{"@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/1361699995887769856.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2001gl013897"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2001GL013897"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2001GL013897"}}],"dc:title":[{"@value":"An investigation of motions of the equatorial anomaly crest"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Using more than 350 ionospheric images reconstructed tomographically, studies on the motion of the anomaly crest and its geophysical implications are carried out. On an average day, the crest forms at 09:00 LT and, in the next two hours, moves poleward with a speed of about 1° per hour as it intensifies. This poleward motion is slowed as the crest reaches its highest latitude where it stays for several hours until early afternoon. Thereafter, the crest starts to weaken as it recedes with a speed of about 0.5° per hour equatorward. During 12:00 ‐ 14:00 LT, the crest latitude is found to correlate with the fountain strength and the total number of electrons in a cross sectional plane at the observational longitude of the whole equatorial ionosphere.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380285711828918920","@type":"Researcher","foaf:name":[{"@value":"K. C. Yeh"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995887769859","@type":"Researcher","foaf:name":[{"@value":"S. J. Franke"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995887769857","@type":"Researcher","foaf:name":[{"@value":"E. S. Andreeva"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995887769856","@type":"Researcher","foaf:name":[{"@value":"V. E. Kunitsyn"}]}],"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":"2001-12-15","prism:volume":"28","prism:number":"24","prism:startingPage":"4517","prism:endingPage":"4520"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2001GL013897"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2001GL013897"}],"createdAt":"2004-02-05","modifiedAt":"2023-09-23","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050564285769724160","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Temporal change of EIA asymmetry revealed by a beacon receiver network in Southeast Asia"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285707221898368","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Multi-instrumental observation of weak magnetic storms occurred during the period, 18–21 March 2002"}]},{"@id":"https://cir.nii.ac.jp/crid/1361694368033528192","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"A Neural Network‐Based Ionospheric Model Over Africa From Constellation Observing System for Meteorology, Ionosphere, and Climate and Ground Global Positioning System Observations"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2001gl013897"},{"@type":"CROSSREF","@value":"10.1186/s40623-015-0252-9_references_DOI_Iwduw7yxAz1QP3IeAXoO3bHEo4H"},{"@type":"CROSSREF","@value":"10.1016/j.jastp.2011.02.019_references_DOI_Iwduw7yxAz1QP3IeAXoO3bHEo4H"},{"@type":"CROSSREF","@value":"10.1029/2019ja027065_references_DOI_Iwduw7yxAz1QP3IeAXoO3bHEo4H"}]}