{"@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/1361137046008758656.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.5194/angeo-27-1775-2009"}},{"identifier":{"@type":"URI","@value":"https://angeo.copernicus.org/articles/27/1775/2009/angeo-27-1775-2009.pdf"}}],"dc:title":[{"@value":"Space weather events in July 1982 and October 2003 and the effects of geomagnetically induced currents on Swedish technical systems"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Abstract. In this paper, we analyse in detail two famous space weather events; a railway problem on 13–14 July 1982 and a power blackout on 30 October 2003. Both occurred in Sweden during very intensive space weather storms and each of them a few years after the sunspot maximum. This paper provides a description of the conditions on the Sun and in the solar wind leading to the two GIC events on the ground.  By applying modelling techniques introduced and developed in our previous paper, we also calculate the horizontal geoelectric field at the Earth's surface in southern Sweden during the two storms as well as GIC flowing in the southern Swedish 400 kV power grid during the event in October 2003. The results from the calculations agree with all measured data available.  In the July-1982 storm, the geomagnetic field variation, ΔBx, reached values up to ~2500 nT/min and the geoelectric field reached values in the order of several volts per kilometer. In the October-2003 storm, the geomagnetic field fluctuations were smaller. However, GIC of some hundreds of amperes flowed in the power grid during the October-2003 event. Technological issues related to the railway signalling in July 1982 and to the power network equipment in October 2003 are also discussed.\n                    </jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380306906077725714","@type":"Researcher","foaf:name":[{"@value":"M. Wik"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137046008758659","@type":"Researcher","foaf:name":[{"@value":"R. Pirjola"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137046008758656","@type":"Researcher","foaf:name":[{"@value":"H. Lundstedt"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137046008758657","@type":"Researcher","foaf:name":[{"@value":"A. Viljanen"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137046008758658","@type":"Researcher","foaf:name":[{"@value":"P. Wintoft"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137046008758661","@type":"Researcher","foaf:name":[{"@value":"A. Pulkkinen"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"14320576"}],"prism:publicationName":[{"@value":"Annales Geophysicae"}],"dc:publisher":[{"@value":"Copernicus GmbH"}],"prism:publicationDate":"2009-04-14","prism:volume":"27","prism:number":"4","prism:startingPage":"1775","prism:endingPage":"1787"},"reviewed":"false","dc:rights":["https://creativecommons.org/licenses/by/3.0/"],"url":[{"@id":"https://angeo.copernicus.org/articles/27/1775/2009/angeo-27-1775-2009.pdf"}],"createdAt":"2010-06-15","modifiedAt":"2021-01-29","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360306906077725696","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Spatial structures of blue low-latitude aurora observed from Japan during the extreme geomagnetic storm of May 2024"}]},{"@id":"https://cir.nii.ac.jp/crid/1362820494264381440","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Capability of Geomagnetic Storm Parameters to Identify Severe Space Weather"}]},{"@id":"https://cir.nii.ac.jp/crid/2050588892104455680","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"PSTEP : project for solar–terrestrial environment prediction"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.5194/angeo-27-1775-2009"},{"@type":"CROSSREF","@value":"10.1186/s40623-024-02090-9_references_DOI_IPx3yi5O7bRxYVdsCBJgVHr6FA9"},{"@type":"CROSSREF","@value":"10.1186/s40623-021-01486-1_references_DOI_IPx3yi5O7bRxYVdsCBJgVHr6FA9"},{"@type":"CROSSREF","@value":"10.3847/1538-4357/ab5113_references_DOI_IPx3yi5O7bRxYVdsCBJgVHr6FA9"}]}