{"@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/1361137044320050176.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2002ja009414"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2002JA009414"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2002JA009414"}}],"dc:title":[{"@value":"Seasonal and local time dependences of the interhemispheric field‐aligned currents deduced from the Ørsted satellite and the ground geomagnetic observations"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>The precise magnetic field measurements by the Ørsted satellite revealed a distinct spatial variation of the eastward component residual (Δ<jats:italic>B</jats:italic><jats:sub>ϕ</jats:sub>) at mid and low latitudes on the dayside. This magnetic field variation was attributed to the interhemispheric field‐aligned currents (IHFACs) at mid and low latitudes based on its comparison with ground geomagnetic field variations. These IHFACs were found to flow from the summer hemisphere to the winter hemisphere in the dawn sector, and from the winter hemisphere to the summer hemisphere in the noon and the dusk sectors. These IHFACs flip their direction not at equinoxes but in May and November. The current intensity of the IHFACs is largest not at solstices but in February and August. The ground‐based geomagnetic field observations at 17 low latitude stations also support the seasonal dependence and local time distribution of the IHFACs.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380009142636841611","@type":"Researcher","foaf:name":[{"@value":"S. Yamashita"}],"jpcoar:affiliationName":[{"@value":"Department of Geophysics, Graduate School of Science Kyoto University  Kyoto Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380016869748161024","@type":"Researcher","foaf:name":[{"@value":"T. Iyemori"}],"jpcoar:affiliationName":[{"@value":"Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science Kyoto University  Kyoto Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"01480227"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Space Physics"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2002-11","prism:volume":"107","prism:number":"A11","prism:startingPage":"1372"},"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%2F2002JA009414"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2002JA009414"}],"createdAt":"2002-12-02","modifiedAt":"2023-10-31","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050295027686608000","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Seasonal variation of inter-hemispheric field-aligned currents deduced from time-series analysis of the equatorial geomagnetic field data during solar cycle 23-24"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004229808235392","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Characteristics of Seasonal Variation and Solar Activity Dependence of the Geomagnetic Solar Quiet Daily Variation"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004232245208704","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Climatology of the inter-hemispheric field-aligned currents system over the Nigeria ionosphere"}]},{"@id":"https://cir.nii.ac.jp/crid/1360298754825669376","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Empirical Modeling of Ionospheric Current Using Empirical Orthogonal Function Analysis and Artificial Neural Network"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567182198730880","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Features of the inter-hemispheric field-aligned current system over Malaysia ionosphere"}]},{"@id":"https://cir.nii.ac.jp/crid/1360584339765080448","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Ionospheric Current Variations by Empirical Orthogonal Function Analysis: Solar Activity Dependence and Longitudinal Differences"}]},{"@id":"https://cir.nii.ac.jp/crid/2050870367075042944","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Dipolar elementary current systems for ionospheric current reconstruction at low and middle latitudes"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2002ja009414"},{"@type":"OPENAIRE","@value":"doi_dedup___::3888bb380fdd7bf52ee974866ee0292a"},{"@type":"CROSSREF","@value":"10.1002/2017ja024342_references_DOI_U9sRoiDTaaoa6XWHyVR1KQHHQoQ"},{"@type":"CROSSREF","@value":"10.1016/j.jastp.2012.07.008_references_DOI_U9sRoiDTaaoa6XWHyVR1KQHHQoQ"},{"@type":"CROSSREF","@value":"10.1186/s40623-020-01284-1_references_DOI_U9sRoiDTaaoa6XWHyVR1KQHHQoQ"},{"@type":"CROSSREF","@value":"10.1029/2021sw002831_references_DOI_U9sRoiDTaaoa6XWHyVR1KQHHQoQ"},{"@type":"CROSSREF","@value":"10.1186/s40623-021-01481-6_references_DOI_U9sRoiDTaaoa6XWHyVR1KQHHQoQ"},{"@type":"CROSSREF","@value":"10.1029/2021ja029903_references_DOI_U9sRoiDTaaoa6XWHyVR1KQHHQoQ"},{"@type":"CROSSREF","@value":"10.1016/j.jastp.2018.01.012_references_DOI_U9sRoiDTaaoa6XWHyVR1KQHHQoQ"}]}