Comment on "Fingerprint structure PC 1 geomagnetic pulsations"

Sato et al. [1987] recently drew attention to a new form of Pc 1 pulsations, which they refer to as ‘fingerprint structure’ Pc 1 pulsations because of their distinctive appearance in frequency‐time (f‐t) spectrograms. The new pulsations were observed on moderately high latitude geomagnetic field lin...

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Veröffentlicht in:	Geophysical research letters 1987-11, Vol.14 (11), p.1178-1179
1. Verfasser:	Fraser-Smith, A. C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Earth, ocean, space Exact sciences and technology External geophysics Magnetic pulsations Physics of the magnetosphere
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container_title	Geophysical research letters
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creator	Fraser-Smith, A. C.
description	Sato et al. [1987] recently drew attention to a new form of Pc 1 pulsations, which they refer to as ‘fingerprint structure’ Pc 1 pulsations because of their distinctive appearance in frequency‐time (f‐t) spectrograms. The new pulsations were observed on moderately high latitude geomagnetic field lines (L≈6) and the authors suggested that the considerable number of spectral lines and their constant frequency separation might provide evidence for non‐linear effects in the Pc 1 pulsation generation region. It is suggested here, on the contrary, that the fine frequency structure is not a non‐linear effect but is simply a manifestation of field line resonances of the kind suggested by Fraser‐Smith [1967].
doi_str_mv	10.1029/GL014i011p01178
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C.</creator><creatorcontrib>Fraser-Smith, A. C.</creatorcontrib><description>Sato et al. [1987] recently drew attention to a new form of Pc 1 pulsations, which they refer to as ‘fingerprint structure’ Pc 1 pulsations because of their distinctive appearance in frequency‐time (f‐t) spectrograms. The new pulsations were observed on moderately high latitude geomagnetic field lines (L≈6) and the authors suggested that the considerable number of spectral lines and their constant frequency separation might provide evidence for non‐linear effects in the Pc 1 pulsation generation region. It is suggested here, on the contrary, that the fine frequency structure is not a non‐linear effect but is simply a manifestation of field line resonances of the kind suggested by Fraser‐Smith [1967].</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/GL014i011p01178</identifier><identifier>CODEN: GPRLAJ</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Earth, ocean, space ; Exact sciences and technology ; External geophysics ; Magnetic pulsations ; Physics of the magnetosphere</subject><ispartof>Geophysical research letters, 1987-11, Vol.14 (11), p.1178-1179</ispartof><rights>Copyright 1987 by the American Geophysical Union.</rights><rights>1988 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3329-f34984f836f555ac14c30ee38986265b6cdcddcd4e3bff083529e1cd1ba150393</citedby><cites>FETCH-LOGICAL-c3329-f34984f836f555ac14c30ee38986265b6cdcddcd4e3bff083529e1cd1ba150393</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2FGL014i011p01178$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2FGL014i011p01178$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1416,27923,27924,45573,45574</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=7451833$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Fraser-Smith, A. 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It is suggested here, on the contrary, that the fine frequency structure is not a non‐linear effect but is simply a manifestation of field line resonances of the kind suggested by Fraser‐Smith [1967].</description><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>External geophysics</subject><subject>Magnetic pulsations</subject><subject>Physics of the magnetosphere</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1987</creationdate><recordtype>article</recordtype><recordid>eNqFkE1rGzEQhkVpoG7Sc65LCCWXbWZ2pF3pEoiX2i2YxISWHoUsa42S_XCkXVL_-67jkEMOKcwwM_C8LzPD2CnCN4RMXc4XgNwD4nbMQn5gE1ScpxKg-MgmAGrssyL_xD7HeA8ABIQTdlV2TePaPuna5Gzm240L2-DHOfZhsP0QXLIsE0w2rmvMpnW9t8l2qKPpfdfGsxN2VJk6ui8v9Zj9nn3_Vf5IF7fzn-X1IrVEmUor4krySlJeCSGMRW4JnCOpZJ7lYpXbtV2PwR2tqgokiUw5tGtcGRRAio7Z14PvNnSPg4u9bny0rq5N67oh6oyT4jLfgxfvgigyzlEQ8hG9PKA2dDEGV-nx8saEnUbQ-5fqNy8dFecv5iZaU1fBtNbHV1nBBUqiEeMH7MnXbvc_Vz2_W1DxvHp6kPnYu7-vMhMedF5QIfSfm7lWU5gup7OlRvoH6bSTNQ</recordid><startdate>198711</startdate><enddate>198711</enddate><creator>Fraser-Smith, A. 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C.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fraser-Smith, A. C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comment on "Fingerprint structure PC 1 geomagnetic pulsations"</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>1987-11</date><risdate>1987</risdate><volume>14</volume><issue>11</issue><spage>1178</spage><epage>1179</epage><pages>1178-1179</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>Sato et al. [1987] recently drew attention to a new form of Pc 1 pulsations, which they refer to as ‘fingerprint structure’ Pc 1 pulsations because of their distinctive appearance in frequency‐time (f‐t) spectrograms. The new pulsations were observed on moderately high latitude geomagnetic field lines (L≈6) and the authors suggested that the considerable number of spectral lines and their constant frequency separation might provide evidence for non‐linear effects in the Pc 1 pulsation generation region. 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subjects	Earth, ocean, space Exact sciences and technology External geophysics Magnetic pulsations Physics of the magnetosphere
title	Comment on "Fingerprint structure PC 1 geomagnetic pulsations"
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