{"@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/1390282681486792576.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1186/bf03352178"}},{"identifier":{"@type":"NDL_BIB_ID","@value":"4614398"}},{"identifier":{"@type":"URI","@value":"http://id.ndl.go.jp/bib/4614398"}},{"identifier":{"@type":"URI","@value":"https://ndlsearch.ndl.go.jp/books/R000000004-I4614398"}},{"identifier":{"@type":"URI","@value":"https://dl.ndl.go.jp/pid/8800302"}},{"identifier":{"@type":"URI","@value":"https://link.springer.com/content/pdf/10.1186/BF03352178.pdf"}},{"identifier":{"@type":"URI","@value":"https://link.springer.com/article/10.1186/BF03352178/fulltext.html"}},{"identifier":{"@type":"URI","@value":"http://link.springer.com/content/pdf/10.1186/BF03352178"}},{"identifier":{"@type":"NAID","@value":"10003736253"}},{"identifier":{"@type":"NAID","@value":"130003955876"}}],"dc:title":[{"@language":"en","@value":"Frequency dependence of equatorial electrojet effect on geomagnetic micropulsations"},{"@language":"ja-Kana","@value":"Frequency dependence of equatorial elec"}],"dc:language":"en","description":[{"type":"abstract","notation":[{"@language":"en","@value":"The micropulsation data (Pc3-Pc4 range) from off-equatorial and equatorial stations Alibag (ABG) and Tirunelvelli (TIR) in the Indian zone during 1991 are analysed for delineating the electrojet effect. The ratios of the spectral amplitudes at significant frequency bands the horizontal component of the magnetic field at TIR to that at ABG are worked out as a function of frequency. The results show that the lower frequencies undergo larger equatorial amplification. However, above a certain frequency the pulsation signal is found to attenuate rather than exhibit the general enhancement. The ratio becomes minimum around the period, 18 to 24 sec. At further higher frequencies, there is again the normal electrojet amplification. The explanation of such a behaviour of the electrojet on the pulsation amplitude is rather difficult at the present stage and to some extent becomes controversial even if it is offered."}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410282681486792576","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000000195642"},{"@type":"NRID","@value":"9000254739150"}],"foaf:name":[{"@language":"en","@value":"Roy M."}],"jpcoar:affiliationName":[{"@language":"en","@value":"Indian Institute of Geomagnetism"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282681486792577","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000000195645"},{"@type":"NRID","@value":"9000254739151"}],"foaf:name":[{"@language":"en","@value":"Rao D. R. K."}],"jpcoar:affiliationName":[{"@language":"en","@value":"Indian Institute of Geomagnetism"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"13438832"},{"@type":"EISSN","@value":"18805981"},{"@type":"NDL_BIB_ID","@value":"000000159136"},{"@type":"ISSN","@value":"13438832"},{"@type":"LISSN","@value":"13438832"},{"@type":"NCID","@value":"AA11211921"}],"prism:publicationName":[{"@language":"en","@value":"Earth, Planets and Space"},{"@language":"ja","@value":"Ｅａｒｔｈ，　Ｐｌａｎｅｔｓ　ａｎｄ　Ｓｐａｃｅ"},{"@language":"en","@value":"Earth Planets Space"},{"@language":"ja","@value":"Ｅａｒｔｈ　Ｐｌａｎｅｔｓ　Ｓｐａｃｅ"}],"dc:publisher":[{"@language":"en","@value":"Society of Geomagnetism and Earth, Planetary and Space Sciences, The Seismological Society of Japan, The Volcanological Society of Japan , The Geodetic Society of Japan , The Japanese Society for Planetary Sciences"},{"@language":"ja","@value":"地球電磁気・地球惑星圏学会 、公益社団法人 日本地震学会、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会"}],"prism:publicationDate":"1998","prism:volume":"50","prism:number":"10","prism:startingPage":"847","prism:endingPage":"851"},"reviewed":"false","url":[{"@id":"http://id.ndl.go.jp/bib/4614398"},{"@id":"https://ndlsearch.ndl.go.jp/books/R000000004-I4614398"},{"@id":"https://dl.ndl.go.jp/pid/8800302"},{"@id":"https://link.springer.com/content/pdf/10.1186/BF03352178.pdf"},{"@id":"https://link.springer.com/article/10.1186/BF03352178/fulltext.html"},{"@id":"http://link.springer.com/content/pdf/10.1186/BF03352178"}],"availableAt":"1998","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360011145603506432","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"An analysis of micropulsation events at a low-latitude station during 1985"}]},{"@id":"https://cir.nii.ac.jp/crid/1360011146247493504","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Alfven field line resonances at low latitudes (<i>L</i> = 1.5)"}]},{"@id":"https://cir.nii.ac.jp/crid/1361137046279988352","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"On the equatorial electrojet influence on geomagnetic pulsation amplitudes"}]},{"@id":"https://cir.nii.ac.jp/crid/1361418520988957824","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Wave characteristics of daytime and nighttime Pi 2 pulsations at the equatorial and low latitudes"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699993634755840","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Damping of geomagnetic pulsations by the ionosphere"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699995516872448","@type":"Article","relationType":["references","cites"],"jpcoar:relatedTitle":[{"@value":"The variation of geomagnetic micropulsation periods with latitude and the plasmapause"}]},{"@id":"https://cir.nii.ac.jp/crid/1362262946020800640","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"On the diurnal period variation of midlatitude ULF pulsations"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107368917852416","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Pc 3 pulsation eigenperiod determination at low latitudes"}]},{"@id":"https://cir.nii.ac.jp/crid/1363951793376989696","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The screening of micropulsation signals by the atmosphere and ionosphere"}]},{"@id":"https://cir.nii.ac.jp/crid/1363951793801724160","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"ULF pulsation eigenperiods within the plasmasphere"}]},{"@id":"https://cir.nii.ac.jp/crid/1363951795262699008","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Phase and amplitude structure of Pc 3 magnetic pulsations as determined from multipoint observations"}]},{"@id":"https://cir.nii.ac.jp/crid/1364233270829968512","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Alfven wave resonances in a realistic magnetospheric magnetic field geometry"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206509242752","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"The Mechanisms of Damping of Geomagnetic Pulsations."}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681485994112","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Initial Results from the 210.DEG. Magnetic Meridian Project-Review."}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681486600960","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Characteristics of Low-Latitude Pi 2 Pulsations along the 210.DEG. Magnetic Meridian."}]},{"@id":"https://cir.nii.ac.jp/crid/1570572699159217024","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Geomagnetic pulsations (Pc3-Pc4) recording system : hardware and software"}]},{"@id":"https://cir.nii.ac.jp/crid/1570572701688284928","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Pc 3 pulsation eigenperiod determination at low latitudes"}]},{"@id":"https://cir.nii.ac.jp/crid/1570572701689325568","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"An analysis of micropulsations events at a low-latitude station during 1985"}]},{"@id":"https://cir.nii.ac.jp/crid/1570854174135929088","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Equatorial electrojet effect on Geomagnetic pulsations"}]},{"@id":"https://cir.nii.ac.jp/crid/1570854176758099712","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Damping of geomagnetic pulsations by the ionosphere"}]},{"@id":"https://cir.nii.ac.jp/crid/1571417126439685888","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"The screening of micropulsation signals by the atmosphere and ionosphere"}]},{"@id":"https://cir.nii.ac.jp/crid/1571698601621783424","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Alfven field line resonances at low latitude(L=1,5)"}]},{"@id":"https://cir.nii.ac.jp/crid/1571980074042770176","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Characteristics of low-latitude Pi 2 pulsations along the 210° magnetic meridian"}]},{"@id":"https://cir.nii.ac.jp/crid/1571980076569574912","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"ULF pulsation eigenperiods within the plasmasphere"}]},{"@id":"https://cir.nii.ac.jp/crid/1572261549019457792","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Initial results from the 210° magnetic meridian project : Review"}]},{"@id":"https://cir.nii.ac.jp/crid/1572261551561210624","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"On the diurnal period variation of mid-latitude ULF pulsations"}]},{"@id":"https://cir.nii.ac.jp/crid/1572543025688821248","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Phase and amplitude structure of Pc 3 magnetic pulsations as determined from multipoint observations"}]},{"@id":"https://cir.nii.ac.jp/crid/1572543025693242880","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Wave characteristics of daytime and nighttime Pi 2 pulsations at the equatorial and low latitudes"}]},{"@id":"https://cir.nii.ac.jp/crid/1572543026343153152","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Alfven wave resonances in a realistic magnetospheric magnetic field geometry"}]},{"@id":"https://cir.nii.ac.jp/crid/1573105973949612928","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Characteristics of Pc 3's recorded simultaneously by rulfmeters at Circem Northern Pacific station"}]},{"@id":"https://cir.nii.ac.jp/crid/1573387451506978944","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"On the equatorial electrojet influence on geomagnetic pulsation amplitudes"}]},{"@id":"https://cir.nii.ac.jp/crid/1573668923859163136","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"The Mechanisms of Damping of Geomagnetic Pulsations"}]},{"@id":"https://cir.nii.ac.jp/crid/1574231873856455936","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Mechanism of damping of geomagnetic pulsations at low latitude"}]},{"@id":"https://cir.nii.ac.jp/crid/2050588891962944384","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Nighttime Pc3 pulsations : MM100 and MAGDAS observations"}]}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:0005689383"},{"@type":"NDL_SEARCH","@value":"oai:ndlsearch.ndl.go.jp:R000000004-I4614398"},{"@type":"CROSSREF","@value":"10.1186/bf03352178"},{"@type":"CIA","@value":"10003736253"},{"@type":"CIA","@value":"130003955876"},{"@type":"CROSSREF","@value":"10.1186/s40623-017-0647-x_references_DOI_FJQV18q2wxhQfwPuX3YVLUJ0aLx"}]}