{"@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/1360861292230580480.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1007/s00585-996-1403-x"}},{"identifier":{"@type":"URI","@value":"https://angeo.copernicus.org/articles/14/1403/1996/angeo-14-1403-1996.pdf"}}],"dc:title":[{"@value":"A comparison of EISCAT and Dynasonde measurements of the auroral ionosphere"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Abstract. Incoherent-scatter radar and ionospheric sounding are powerful and complementary techniques in the study of the Earth's ionosphere. The work presented here involves the use of the Tromsø Dynasonde as a correlative diagnostic with the EISCAT incoherent-scatter radar. A comparison of electron-density profiles shows how a Dynasonde can be used to calibrate an incoherent-scatter radar and to monitor changes in the system. Skymaps of the direction of Dynasonde echoes are compared with EISCAT-derived density profiles to illustrate how a Dynasonde can be used to measure the drift velocity of auroral features. Vector velocities fitted to Dynasonde echoes are compared with EISCAT-derived plasma velocities. The results show good agreement when the data are taken during quiet to moderately active conditions and averaged over time scales of 30 min or more.\n                    </jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380861292230580480","@type":"Researcher","foaf:name":[{"@value":"K. J. F. Sedgemore"}]},{"@id":"https://cir.nii.ac.jp/crid/1380861292230580483","@type":"Researcher","foaf:name":[{"@value":"P. J. S. Williams"}]},{"@id":"https://cir.nii.ac.jp/crid/1380861292230580482","@type":"Researcher","foaf:name":[{"@value":"G. O. L. Jones"}]},{"@id":"https://cir.nii.ac.jp/crid/1380861292230580481","@type":"Researcher","foaf:name":[{"@value":"J. W. Wright"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"14320576"}],"prism:publicationName":[{"@value":"Annales Geophysicae"}],"dc:publisher":[{"@value":"Copernicus GmbH"}],"prism:publicationDate":"1996-12-31","prism:volume":"14","prism:number":"12","prism:startingPage":"1403","prism:endingPage":"1412"},"reviewed":"false","dc:rights":["http://www.egu.eu"],"url":[{"@id":"https://angeo.copernicus.org/articles/14/1403/1996/angeo-14-1403-1996.pdf"}],"createdAt":"2005-04-07","modifiedAt":"2021-01-27","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360298337256940800","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"IMF Dependence of Midnight Bifurcation in the Thermospheric Wind at an Auroral Latitude Based on Nine Winter Measurements in Tromsø, Norway"},{"@language":"en","@value":"Oyama, S., Hosokawa, K., Vanhamäki, H., Aikio, A., Sakanoi, T., Cai, L., et al. (2023). IMF dependence of midnight bifurcation in the thermospheric wind at an auroral latitude based on nine winter measurements in Tromsø, Norway. Geophysical Research Letters, 50, e2023GL104334"}]},{"@id":"https://cir.nii.ac.jp/crid/2051996266992072576","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Thermospheric wind response to a sudden ionospheric variation in the trough : event at a pseudo-breakup during geomagnetically quiet conditions"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1007/s00585-996-1403-x"},{"@type":"CROSSREF","@value":"10.1029/2023gl104334_references_DOI_WaO6iNlR3LaMQXZwkcnqBFmNT0H"},{"@type":"CROSSREF","@value":"10.1186/s40623-022-01710-6_references_DOI_WaO6iNlR3LaMQXZwkcnqBFmNT0H"}]}