{"@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/1362825894438263680.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2005gl022788"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2005GL022788"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2005GL022788"}},{"identifier":{"@type":"HANDLE","@value":"2381/18737"}},{"identifier":{"@type":"NAID","@value":"10024500092"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Extraction of polar mesosphere summer echoes from SuperDARN data"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>An algorithm for automated extraction of polar mesosphere summer echoes (PMSE) from near‐range measurements of the Super Dual Auroral Radar Network (SuperDARN) is applied to observations obtained by the Syowa East (69.01°S, 38.61°E) and Iceland East (63.77°N, −20.54°W) radars whose fields‐of‐view are magnetically conjugate. The rate of PMSE occurrence in the SuperDARN data is greatly enhanced in summer months, reaching a maximum of ≈90% in Iceland and 60% in Syowa near the summer solstice. The diurnal variation of PMSE occurrence reaches a maximum near the noon meridian, with a distinct minimum at 20LT. These features are consistent with those derived from previous VHF radar observations, suggesting that the SuperDARN data contain large numbers of PMSE events. The interhemispheric asymmetry of PMSE occurrence is also estimated, and it is shown that the PMSE activity is ≈1.5 times higher in the Northern Hemisphere (N.H.) than in the Southern Hemisphere (S.H.). Thus, interhemispheric asymmetry in PMSE occurrence appears to exist, but is much weaker than that predicted previously based on VHF radar observations.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1582824500515108864","@type":"Researcher","foaf:name":[{"@value":"K. Hosokawa"}],"jpcoar:affiliationName":[{"@value":"Department of Information and Communication Engineering The University of Electro‐Communications  Tokyo Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825894438263681","@type":"Researcher","foaf:name":[{"@value":"T. Ogawa"}],"jpcoar:affiliationName":[{"@value":"Solar‐Terrestrial Environment Laboratory Nagoya University  Toyokawa, Aichi Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825894438263682","@type":"Researcher","foaf:name":[{"@value":"N. F. Arnold"}],"jpcoar:affiliationName":[{"@value":"Department of Physics and Astronomy University of Leicester  Leicester U.K."}]},{"@id":"https://cir.nii.ac.jp/crid/1382825894438263685","@type":"Researcher","foaf:name":[{"@value":"M. Lester"}],"jpcoar:affiliationName":[{"@value":"Department of Physics and Astronomy University of Leicester  Leicester U.K."}]},{"@id":"https://cir.nii.ac.jp/crid/1382825894438263680","@type":"Researcher","foaf:name":[{"@value":"N. Sato"}],"jpcoar:affiliationName":[{"@value":"National Institute of Polar Research  Tokyo Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825894438263683","@type":"Researcher","foaf:name":[{"@value":"A. S. Yukimatu"}],"jpcoar:affiliationName":[{"@value":"National Institute of Polar Research  Tokyo Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00948276"},{"@type":"EISSN","@value":"19448007"}],"prism:publicationName":[{"@value":"Geophysical Research Letters"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2005-06","prism:volume":"32","prism:number":"12","prism:startingPage":"12"},"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%2F2005GL022788"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2005GL022788"}],"createdAt":"2005-06-16","modifiedAt":"2023-10-31","project":[{"@id":"https://cir.nii.ac.jp/crid/1040000781881899776","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"16540410"},{"@type":"JGN","@value":"JP16540410"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16540410/"}],"notation":[{"@language":"ja","@value":"SuperDARNレーダー生時系列観測解析手法による極域電磁圏ダイナミクスの研究"},{"@language":"en","@value":"Study of polar ionosphere and magnetosphere dynamics based on SuperDARN time series analysis technique"}]},{"@id":"https://cir.nii.ac.jp/crid/1040000782434737664","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"17403009"},{"@type":"JGN","@value":"JP17403009"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17403009/"}],"notation":[{"@language":"ja","@value":"極域電離圏環境が南北両極オーロラの動態と強度に及ぼす影響の研究"},{"@language":"en","@value":"Role of ionospheric process on the conjugate auroral dynamics and intensity"}]},{"@id":"https://cir.nii.ac.jp/crid/1040282256850905088","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"16340148"},{"@type":"JGN","@value":"JP16340148"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16340148/"}],"notation":[{"@language":"ja","@value":"SuperDARNレーダー網による極域電磁圏と下部熱圏・中間圏環境変動の研究"},{"@language":"en","@value":"Study on the characteristics of polar ionosphere, thermosphere and mesosphrere using SuperDARN HF radars"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004240189342592","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Simultaneous PMC and PMSE observations with a ground-based lidar and SuperDARN HF radar at Syowa Station, Antarctica"}]},{"@id":"https://cir.nii.ac.jp/crid/1360009142458305920","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"History of Japanese SuperDARN: Initiation of SENSU Syowa radars and progress of Japanese radar project"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285704783576576","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Frequency spectra and vertical profiles of wind fluctuations in the summer Antarctic mesosphere revealed by MST radar observations"}]},{"@id":"https://cir.nii.ac.jp/crid/1521136280049282304","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@value":"Study on mesosphere summer echoes observed by digital ionosonde at Zhongshan Station, Antarctica"},{"@language":"ja-Kana","@value":"Study on mesosphere summer echoes observed by digital ionosonde at Zhongshan Station Antarctica"}]},{"@id":"https://cir.nii.ac.jp/crid/2051151842044692096","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Review of the accomplishments of midlatitude Super Dual Auroral Radar Network (SuperDARN) HF radars"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2005gl022788"},{"@type":"CIA","@value":"10024500092"},{"@type":"KAKEN","@value":"PRODUCT-18796501"},{"@type":"KAKEN","@value":"PRODUCT-10625080"},{"@type":"KAKEN","@value":"PRODUCT-18687114"},{"@type":"KAKEN","@value":"PRODUCT-18687152"},{"@type":"KAKEN","@value":"PRODUCT-18687195"},{"@type":"OPENAIRE","@value":"doi_dedup___::8ef61a470c0ae104f2e7b3f029b2528e"},{"@type":"CROSSREF","@value":"10.5194/angeo-31-1793-2013_references_DOI_JHKFeQ9pSKXhLD2kMqyWDE2Jpcq"},{"@type":"CROSSREF","@value":"10.1016/j.polar.2021.100671_references_DOI_JHKFeQ9pSKXhLD2kMqyWDE2Jpcq"},{"@type":"CROSSREF","@value":"10.1002/2016jd025834_references_DOI_JHKFeQ9pSKXhLD2kMqyWDE2Jpcq"},{"@type":"CROSSREF","@value":"10.1186/s40645-019-0270-5_references_DOI_JHKFeQ9pSKXhLD2kMqyWDE2Jpcq"}]}