{"@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/1362825895050442368.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1007/s00585-000-1210-8"}},{"identifier":{"@type":"URI","@value":"https://angeo.copernicus.org/articles/18/1210/2000/angeo-18-1210-2000.pdf"}}],"dc:title":[{"@value":"First EISCAT measurement of electron-gas temperature in the artificially heated D-region ionosphere"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Abstract. The ionospheric electron gas can be heated artificially by a powerful radio wave. According to our modeling, the maximum effect of this heating occurs in the D-region where the electron temperature can increase by a factor of ten. Ionospheric plasma parameters such as Ne, Te and Ti are measured by EISCAT incoherent scatter radar on a routine basis. However, in the D-region the incoherent scatter echo is very weak because of the low electron density. Moreover, the incoherent scatter spectrum from the D-region is of Lorentzian shape which gives less information than the spectrum from the E- and F-regions. These make EISCAT measurements in the D-region difficult. A combined EISCAT VHF-radar and heating experiment was carried out in November 1998 with the aim to measure the electron temperature increase due to heating. In the experiment the heater was switched on/off at 5 minute intervals and the integration time of the radar was chosen synchronously with the heating cycle. A systematic difference in the measured autocorrelation functions was found between heated and unheated periods.Key words: Ionosphere (active experiments; plasma temperature and density; wave propagation)\n                    </jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380567007856358579","@type":"Researcher","foaf:name":[{"@value":"A. Kero"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895050442368","@type":"Researcher","foaf:name":[{"@value":"T. Bösinger"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895050442496","@type":"Researcher","foaf:name":[{"@value":"P. Pollari"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895050442370","@type":"Researcher","foaf:name":[{"@value":"E. Turunen"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895050442371","@type":"Researcher","foaf:name":[{"@value":"M. Rietveld"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"14320576"}],"prism:publicationName":[{"@value":"Annales Geophysicae"}],"dc:publisher":[{"@value":"Copernicus GmbH"}],"prism:publicationDate":"2000-09-30","prism:volume":"18","prism:number":"9","prism:startingPage":"1210","prism:endingPage":"1215"},"reviewed":"false","dc:rights":["http://www.egu.eu"],"url":[{"@id":"https://angeo.copernicus.org/articles/18/1210/2000/angeo-18-1210-2000.pdf"}],"createdAt":"2005-04-07","modifiedAt":"2021-01-27","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/2050307417166183168","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"The science case for the EISCAT_3D radar"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1007/s00585-000-1210-8"},{"@type":"CROSSREF","@value":"10.1186/s40645-015-0051-8_references_DOI_NLksb488MjHlu6JKKhbQHBTnQmY"}]}