{"@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/1362825895224593152.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/gl017i007p00929"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2FGL017i007p00929"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/GL017i007p00929"}}],"dc:title":[{"@value":"Two‐frequency Lidar technique for mesospheric Na temperature measurements"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>We describe a new two‐frequency lidar for measuring Na temperature profiles that uses a stabilized cw single‐mode dye laser oscillator (rms frequency jitter < 1 MH<jats:sub>z</jats:sub>) followed by a pulsed‐dye power amplifier (140 MHz FWHM linewidth) which is pumped by an injection‐locked Nd: YAG laser. The laser oscillator is tuned to the two operating frequencies by observing the Doppler‐free structure of the Na D<jats:sub>2</jats:sub> fluorescence spectrum in a vapor cell. The lidar technique and our initial observations of the temperature profile between 82 and 102 km at Ft. Collins, CO (40.6°N,105°W) are described. Absolute temperature accuracies at the Na layer peak of better than ±3 K with a vertical resolution of 1 km and an integration period of approximately 5 min were achieved.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380285532850185089","@type":"Researcher","foaf:name":[{"@value":"C. Y. She"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895224593156","@type":"Researcher","foaf:name":[{"@value":"H. Latifi"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895224593157","@type":"Researcher","foaf:name":[{"@value":"J. R. Yu"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895224593155","@type":"Researcher","foaf:name":[{"@value":"R. J. Alvarez"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895224593153","@type":"Researcher","foaf:name":[{"@value":"R. E. Bills"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895224593154","@type":"Researcher","foaf:name":[{"@value":"C. S. Gardner"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00948276"},{"@type":"EISSN","@value":"19448007"},{"@type":"PISSN","@value":"http://id.crossref.org/issn/00948276"}],"prism:publicationName":[{"@value":"Geophysical Research Letters"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"1990-06","prism:volume":"17","prism:number":"7","prism:startingPage":"929","prism:endingPage":"932"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2FGL017i007p00929"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/GL017i007p00929"}],"createdAt":"2008-02-06","modifiedAt":"2023-11-22","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360283691685551232","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Fine structure of sporadic 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