{"@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/1361699995320760064.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/97ja00491"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F97JA00491"}},{"identifier":{"@type":"URI","@value":"https://onlinelibrary.wiley.com/doi/pdf/10.1029/97JA00491"}},{"identifier":{"@type":"URI","@value":"https://onlinelibrary.wiley.com/doi/full-xml/10.1029/97JA00491"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/97JA00491"}}],"dc:title":[{"@value":"A climatology of <i>F</i> region gravity wave propagation over the middle and upper atmosphere radar"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>By observing the ionospheric <jats:italic>F</jats:italic> region simultaneously in multiple beams with the middle and upper atmosphere radar, we have been able to track the passage of gravity waves and measure their propagation characteristics. Here we develop a climatology of wave propagation based on the observation of 58 daytime experiments conducted during 1986–1994. The thermosphere seems to be continuously swept by waves detectable by an incoherent scatter radar. These waves generally come for hours on end from a consistent or slowly varying direction, which can be any direction on a given day. Statistically, the waves show a moderate preference for southward travel, with this preference being reduced or shifted to southeastward travel during disturbed times. On average, the horizontal phase trace speed remains near 240 m/s for all periods inspected (40–130 min). This speed matches the behavior expected for lossless waves with 150–200 km vertical wavelength. We find small variability in this relation for different times of day, seasons, solar and magnetic conditions, and directions of wave travel, though waves on disturbed days seem to travel moderately faster on solar minimum mornings.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380017282213990551","@type":"Researcher","foaf:name":[{"@value":"W. L. Oliver"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995320760064","@type":"Researcher","foaf:name":[{"@value":"Y. Otsuka"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995320760065","@type":"Researcher","foaf:name":[{"@value":"M. Sato"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995320760068","@type":"Researcher","foaf:name":[{"@value":"T. Takami"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995320760067","@type":"Researcher","foaf:name":[{"@value":"S. Fukao"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"01480227"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Space Physics"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"1997-01","prism:volume":"102","prism:number":"A7","prism:startingPage":"14499","prism:endingPage":"14512"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F97JA00491"},{"@id":"https://onlinelibrary.wiley.com/doi/pdf/10.1029/97JA00491"},{"@id":"https://onlinelibrary.wiley.com/doi/full-xml/10.1029/97JA00491"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/97JA00491"}],"createdAt":"2004-02-03","modifiedAt":"2024-01-24","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360283689327352960","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Global distribution and parameter dependences of gravity wave activity in the Martian upper thermosphere derived from MAVEN/NGIMS observations"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285705810723712","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Statistical Study of Medium-Scale Traveling Ionospheric Disturbances Observed with a GPS Receiver Network in Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360302865726221312","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Performance of the double-thin-shell approach for studying nighttime medium-scale traveling ionospheric disturbances using two dense GNSS observation networks in Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360306905153774208","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Coincident/Simultaneous Observations of Stratospheric Concentric Gravity Waves and Concentric Traveling Ionospheric Disturbances Over the Continental U.S. in 2022"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567179761791872","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Numerical Study of Traveling Ionospheric Disturbances Generated by an Upward Propagating Gravity Wave"}]},{"@id":"https://cir.nii.ac.jp/crid/1360580230577855872","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Medium‐Scale Traveling Ionospheric Disturbances"}]},{"@id":"https://cir.nii.ac.jp/crid/1360846646045163648","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"GPS observations of medium-scale traveling ionospheric disturbances over Europe"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206511216128","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Observation of large-scale traveling ionospheric disturbances of auroral origin by global GPS networks"}]},{"@id":"https://cir.nii.ac.jp/crid/2050025942151462272","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Coupled investigations of ionosphere variations over European and Japanese regions : observations, comparative analysis, and validation of models and facilities"}]},{"@id":"https://cir.nii.ac.jp/crid/2050588892101946624","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Solar activity dependence of medium-scale traveling ionospheric disturbances using GPS receivers in Japan"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/97ja00491"},{"@type":"CROSSREF","@value":"10.1186/s40645-021-00441-8_references_DOI_38AIB4qonRpUEcJgvvxkzjshIF8"},{"@type":"CROSSREF","@value":"10.1186/bf03352261_references_DOI_38AIB4qonRpUEcJgvvxkzjshIF8"},{"@type":"CROSSREF","@value":"10.1002/2016ja023476_references_DOI_38AIB4qonRpUEcJgvvxkzjshIF8"},{"@type":"CROSSREF","@value":"10.1007/978-94-007-0326-1_21_references_DOI_38AIB4qonRpUEcJgvvxkzjshIF8"},{"@type":"CROSSREF","@value":"10.1186/s40623-023-01956-8_references_DOI_38AIB4qonRpUEcJgvvxkzjshIF8"},{"@type":"CROSSREF","@value":"10.1029/2024ja033429_references_DOI_38AIB4qonRpUEcJgvvxkzjshIF8"},{"@type":"CROSSREF","@value":"10.1002/2017ja025110_references_DOI_38AIB4qonRpUEcJgvvxkzjshIF8"},{"@type":"CROSSREF","@value":"10.1186/s40623-020-01353-5_references_DOI_38AIB4qonRpUEcJgvvxkzjshIF8"},{"@type":"CROSSREF","@value":"10.1002/9781119815617.ch18_references_DOI_38AIB4qonRpUEcJgvvxkzjshIF8"},{"@type":"CROSSREF","@value":"10.5194/angeo-31-163-2013_references_DOI_38AIB4qonRpUEcJgvvxkzjshIF8"}]}