{"@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/1363670320332202496.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2009ja014163"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2009JA014163"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2009JA014163"}}],"dc:title":[{"@value":"Propagation characteristics of Pi 2 pulsations observed at high‐ and low‐latitude MAGDAS/CPMN stations: A statistical study"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>The objective of this study is to understand better the propagation of Pi 2 waves in the nighttime region. We examined Pi 2 oscillations that showed high correlation between high‐ and low‐latitude Magnetic Data Acquisition System/Circum Pan‐Pacific Magnetometer Network stations (correlation coefficient: ∣<jats:italic>γ</jats:italic>∣ ≥ 0.75). For each horizontal component (<jats:italic>H</jats:italic> and <jats:italic>D</jats:italic>) we examined the magnetic local time (MLT) dependence of the delay time of high‐latitude Pi 2 oscillations that corresponds to the highest correlation with the low‐latitude Pi 2 oscillation. We found the delay time of the high‐latitude <jats:italic>H</jats:italic> showed remarkable MLT dependence, especially in the premidnight sector: we found that in the premidnight sector the high‐latitude <jats:italic>H</jats:italic> oscillation tends to delay from the low‐latitude oscillation (<100 s). On the other hand, the delay time of the high‐latitude <jats:italic>D</jats:italic> oscillation was not significant (∼±10 s) in the entire nighttime sector. We propose a Pi 2 propagation model to explain the observed delay time of high‐correlation high‐latitude <jats:italic>H</jats:italic>. The model quantitatively explains the trend of the event distribution. We also examined the spatial distribution of high‐correlation Pi 2 events relative to the center of auroral breakups. It was found that the high‐correlation Pi 2 events tend to occur away from the center of auroral breakups by more than 1.5 MLT. The present result suggests that the high‐correlation <jats:italic>H</jats:italic> component Pi 2 oscillations at high latitude are a manifestation of forced Alfvén waves excited by fast magnetosonic waves.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383670320332202500","@type":"Researcher","foaf:name":[{"@value":"Teiji Uozumi"}],"jpcoar:affiliationName":[{"@value":"Space Environment Research Center Kyushu University  Fukuoka Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202503","@type":"Researcher","foaf:name":[{"@value":"S. Abe"}],"jpcoar:affiliationName":[{"@value":"Space Environment Research Center Kyushu University  Fukuoka Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202501","@type":"Researcher","foaf:name":[{"@value":"K. Kitamura"}],"jpcoar:affiliationName":[{"@value":"Department of Mechanical and Electrical Engineering Tokuyama College of Technology  Yamaguchi Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202368","@type":"Researcher","foaf:name":[{"@value":"T. Tokunaga"}],"jpcoar:affiliationName":[{"@value":"Department of Earth and Planetary Science Kyushu University  Fukuoka Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202497","@type":"Researcher","foaf:name":[{"@value":"A. Yoshikawa"}],"jpcoar:affiliationName":[{"@value":"Space Environment Research Center Kyushu University  Fukuoka Japan"},{"@value":"Department of Earth and Planetary Science Kyushu University  Fukuoka Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202374","@type":"Researcher","foaf:name":[{"@value":"H. Kawano"}],"jpcoar:affiliationName":[{"@value":"Space Environment Research Center Kyushu University  Fukuoka Japan"},{"@value":"Department of Earth and Planetary Science Kyushu University  Fukuoka Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202369","@type":"Researcher","foaf:name":[{"@value":"R. Marshall"}],"jpcoar:affiliationName":[{"@value":"IPS Radio and Space Services  Haymarket, New South Wales Australia"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202372","@type":"Researcher","foaf:name":[{"@value":"R. J. Morris"}],"jpcoar:affiliationName":[{"@value":"Australian Antarctic Division Department of Environment, Water, Heritage and the Arts  Kingston, Tasmania Australia"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202498","@type":"Researcher","foaf:name":[{"@value":"B. M. Shevtsov"}],"jpcoar:affiliationName":[{"@value":"Institute of Cosmophysical Researches and Radio Wave Propagation  Paratunka Russia"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202502","@type":"Researcher","foaf:name":[{"@value":"S. I. Solovyev"}],"jpcoar:affiliationName":[{"@value":"Institute of Cosmophysical Research and Aeronomy  Yakutsk Russia"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202496","@type":"Researcher","foaf:name":[{"@value":"D. J. McNamara"}],"jpcoar:affiliationName":[{"@value":"Manila Observatory  Quezon City Philippines"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202499","@type":"Researcher","foaf:name":[{"@value":"K. Liou"}],"jpcoar:affiliationName":[{"@value":"Johns Hopkins University Applied Physics Laboratory  Laurel Maryland USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202373","@type":"Researcher","foaf:name":[{"@value":"S. Ohtani"}],"jpcoar:affiliationName":[{"@value":"Johns Hopkins University Applied Physics Laboratory  Laurel Maryland USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202370","@type":"Researcher","foaf:name":[{"@value":"M. Itonaga"}],"jpcoar:affiliationName":[{"@value":"Faculty of Education Yamaguchi University  Yamaguchi Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320332202371","@type":"Researcher","foaf:name":[{"@value":"K. Yumoto"}],"jpcoar:affiliationName":[{"@value":"Space Environment Research Center Kyushu University  Fukuoka Japan"},{"@value":"Department of Earth and Planetary Science Kyushu University  Fukuoka Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"01480227"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Space Physics"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2009-11","prism:volume":"114","prism:number":"A11","prism:startingPage":"A11207"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2009JA014163"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2009JA014163"}],"createdAt":"2009-11-16","modifiedAt":"2023-10-31","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360846646045128704","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Pi 2 waves simultaneously observed by Cluster and CPMN ground-based magnetometers near the plasmapause"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848654734286336","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Initial deflection of middle‐latitude Pi2 pulsations in the premidnight sector: Remote detection of oscillatory upward field‐aligned current at substorm onset"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848654738328960","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Application of a global magnetospheric‐ionospheric current model for dayside and terminator Pi2 pulsations"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848658217172352","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"AKR modulation and global Pi2 oscillation"}]},{"@id":"https://cir.nii.ac.jp/crid/1361131418080098816","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Formation of a 3‐D Oscillatory Current System Associated With Global High‐Correlation Pi 2 Event: A Case Study"}]},{"@id":"https://cir.nii.ac.jp/crid/2050025942186655232","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Analysis of propagation delays of compressional Pi 2 waves between geosynchronous altitude and low latitudes"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2009ja014163"},{"@type":"OPENAIRE","@value":"doi_dedup___::ba7fe1454d2655e0f4cfec76a08523e1"},{"@type":"CROSSREF","@value":"10.1186/1880-5981-66-20_references_DOI_DtoYNDezDfurBMwbkvJ3nqXlVX4"},{"@type":"CROSSREF","@value":"10.5194/angeo-29-1663-2011_references_DOI_DtoYNDezDfurBMwbkvJ3nqXlVX4"},{"@type":"CROSSREF","@value":"10.1002/2015ja021698_references_DOI_DtoYNDezDfurBMwbkvJ3nqXlVX4"},{"@type":"CROSSREF","@value":"10.1002/2017ja024246_references_DOI_DtoYNDezDfurBMwbkvJ3nqXlVX4"},{"@type":"CROSSREF","@value":"10.1029/2010ja016042_references_DOI_DtoYNDezDfurBMwbkvJ3nqXlVX4"},{"@type":"CROSSREF","@value":"10.1029/2019ja026988_references_DOI_DtoYNDezDfurBMwbkvJ3nqXlVX4"}]}