{"@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/1362262945840127232.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2007gl033130"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2007GL033130"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007GL033130"}}],"dc:title":[{"@value":"Daytime 150‐km echoes observed with the Equatorial Atmosphere Radar in Indonesia: First results"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Results of the daytime 150‐km echoes from 10.36°S magnetic latitude observed using the Equatorial Atmosphere Radar (EAR), which are first of its kind from magnetic southern hemisphere, are presented. The echoing region of 145–165 km shows forenoon descent and afternoon ascent with signal intensity modulation with time resembling a necklace and the Doppler spectra are narrow, which are quite similar to those reported earlier from other locations. Westward and upward/southward irregularity drifts are found to be consistent with daytime background electric fields, providing a tool to investigate low latitude daytime electrodynamics. Detectability of these echoes suggests the absence of strong latitudinal dependence in contrast to the earlier belief, suggesting a possibility of their detection at mid‐latitudes. Also the echoes show zonal anisotropy that is opposite to that observed over Pohnpei. The implications of these observations are discussed in the light of present understanding of 150‐km echoing phenomenon.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380580230606373392","@type":"Researcher","foaf:name":[{"@value":"A. K. Patra"}],"jpcoar:affiliationName":[{"@value":"National Atmospheric Research Laboratory  Tirupati India"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262945840127232","@type":"Researcher","foaf:name":[{"@value":"T. Yokoyama"}],"jpcoar:affiliationName":[{"@value":"Solar‐Terrestrial Environment Laboratory Nagoya University  Toyokawa Japan"},{"@value":"Earth and Atmospheric Sciences Cornell University  Ithaca New York USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262945840127235","@type":"Researcher","foaf:name":[{"@value":"Y. Otsuka"}],"jpcoar:affiliationName":[{"@value":"Solar‐Terrestrial Environment Laboratory Nagoya University  Toyokawa Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262945840127233","@type":"Researcher","foaf:name":[{"@value":"M. Yamamoto"}],"jpcoar:affiliationName":[{"@value":"Research Institute for Sustainable Humanosphere Kyoto University  Uji 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":"2008-03","prism:volume":"35","prism:number":"6","prism:startingPage":"101"},"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%2F2007GL033130"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007GL033130"}],"createdAt":"2008-03-18","modifiedAt":"2023-10-31","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050575495578699520","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Solar and geomagnetic activity dependence of 150-km echoes observed by the Equatorial Atmosphere Radar in Indonesia"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004229807275392","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"A proposal on the study of solar‐terrestrial coupling processes with atmospheric radars and ground‐based observation network"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004229807899904","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"The Solar Flux Dependence of Ionospheric 150 km Radar Echoes and Implications"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004233291930496","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"On the Solstice Maxima and Azimuth‐Dependent Characteristics of the 150‐km Echoes Observed Using the Equatorial Atmosphere Radar"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567179754184192","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Vertical ExB drifts from radar and C/NOFS observations in the Indian and Indonesian sectors: Consistency of observations and model"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567179761709568","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Daytime zonal drifts in the ionospheric 150 km and <i>E</i> regions estimated using EAR observations"}]},{"@id":"https://cir.nii.ac.jp/crid/1360865815492456832","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Solved and unsolved riddles about low-latitude daytime valley region plasma waves and 150-km echoes"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2007gl033130"},{"@type":"OPENAIRE","@value":"doi_dedup___::8da849f5acd9c2f8a3c938d82c149952"},{"@type":"CROSSREF","@value":"10.1002/2016rs006035_references_DOI_M7njz3SJmK1w6Cxhg6DaWMYMhXM"},{"@type":"CROSSREF","@value":"10.1002/2017gl074678_references_DOI_M7njz3SJmK1w6Cxhg6DaWMYMhXM"},{"@type":"CROSSREF","@value":"10.1029/2018ja025491_references_DOI_M7njz3SJmK1w6Cxhg6DaWMYMhXM"},{"@type":"CROSSREF","@value":"10.1002/2013ja019732_references_DOI_M7njz3SJmK1w6Cxhg6DaWMYMhXM"},{"@type":"CROSSREF","@value":"10.1002/2017ja024589_references_DOI_M7njz3SJmK1w6Cxhg6DaWMYMhXM"},{"@type":"CROSSREF","@value":"10.1186/s40623-022-01675-6_references_DOI_M7njz3SJmK1w6Cxhg6DaWMYMhXM"},{"@type":"CROSSREF","@value":"10.3389/fspas.2023.1091319_references_DOI_M7njz3SJmK1w6Cxhg6DaWMYMhXM"}]}