The contribution of anisotropic conductivity in the ionosphere to lightning flash bearing deviations in the ELF/ULF range
Lightning flash bearing deviations in the ELF/ULF range are monitored at two independently operating measurement instruments in Hollister, California, and Silberborn, Germany. The lightning flash bearing deviation at Hollister exhibits a rotational dependence ∼12°, associated with the conductivity c...
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Veröffentlicht in: | Geophysical research letters 1999-04, Vol.26 (8), p.1109-1112 |
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description | Lightning flash bearing deviations in the ELF/ULF range are monitored at two independently operating measurement instruments in Hollister, California, and Silberborn, Germany. The lightning flash bearing deviation at Hollister exhibits a rotational dependence ∼12°, associated with the conductivity contrast between the Earth's crust and the nearby Pacific Ocean. The bearing deviations at both stations exhibit a pronounced diurnal local time variation ∼11°. This diurnal variation is attributed to the anisotropic conductivity in the ionosphere during day‐ and nighttime conditions. No bearing deviation dependency from the source‐receiver distance can be distinguished. Correction for the mean rotational dependence at Hollister and the mean diurnal variation at both locations results in residual bearing deviations ∼ ±10° which are related to the variability of anisotropic conductivity in the ionosphere on a subdiurnal time scale. |
doi_str_mv | 10.1029/1999GL900174 |
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The lightning flash bearing deviation at Hollister exhibits a rotational dependence ∼12°, associated with the conductivity contrast between the Earth's crust and the nearby Pacific Ocean. The bearing deviations at both stations exhibit a pronounced diurnal local time variation ∼11°. This diurnal variation is attributed to the anisotropic conductivity in the ionosphere during day‐ and nighttime conditions. No bearing deviation dependency from the source‐receiver distance can be distinguished. Correction for the mean rotational dependence at Hollister and the mean diurnal variation at both locations results in residual bearing deviations ∼ ±10° which are related to the variability of anisotropic conductivity in the ionosphere on a subdiurnal time scale.</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/1999GL900174</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 ; Physics of the ionosphere ; Wave propagation</subject><ispartof>Geophysical research letters, 1999-04, Vol.26 (8), p.1109-1112</ispartof><rights>Copyright 1999 by the American Geophysical Union.</rights><rights>1999 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4123-ff8fa4a40be0b709f93904f539d06ee827faa03a4ac39b3e7ba9794152f3cb0b3</citedby><cites>FETCH-LOGICAL-c4123-ff8fa4a40be0b709f93904f539d06ee827faa03a4ac39b3e7ba9794152f3cb0b3</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%2F1999GL900174$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F1999GL900174$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,1427,11494,27903,27904,45553,45554,46387,46446,46811,46870</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1768971$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Füllekrug, Martin</creatorcontrib><creatorcontrib>Sukhorukov, Alexander I.</creatorcontrib><title>The contribution of anisotropic conductivity in the ionosphere to lightning flash bearing deviations in the ELF/ULF range</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Lightning flash bearing deviations in the ELF/ULF range are monitored at two independently operating measurement instruments in Hollister, California, and Silberborn, Germany. The lightning flash bearing deviation at Hollister exhibits a rotational dependence ∼12°, associated with the conductivity contrast between the Earth's crust and the nearby Pacific Ocean. The bearing deviations at both stations exhibit a pronounced diurnal local time variation ∼11°. This diurnal variation is attributed to the anisotropic conductivity in the ionosphere during day‐ and nighttime conditions. No bearing deviation dependency from the source‐receiver distance can be distinguished. Correction for the mean rotational dependence at Hollister and the mean diurnal variation at both locations results in residual bearing deviations ∼ ±10° which are related to the variability of anisotropic conductivity in the ionosphere on a subdiurnal time scale.</description><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>External geophysics</subject><subject>Physics of the ionosphere</subject><subject>Wave propagation</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><recordid>eNp9kE1vEzEQhq2KSoSWGz_Ah4oT247XTrw-0o8EpFWRSiokLpbXGSeG7Tq1nbb593WUQjlxmhnN87zSDCEfGJwyqNUZU0rNWgXApDggI6aEqBoA-YaMAFTpazl5S96l9AsAOHA2Itv5CqkNQ46-22QfBhocNYNPIcew9na3W2xs9g8-b6kfaC58wUJarzAizYH2frnKgx-W1PUmrWiHJu6mBT54s4tMf7yrdnp2205pNMMSj8mhM33C9y_1iNxOr-YXX6r22-zrxee2soLVvHKucUYYAR1CJ0E5xRUIN-ZqARPEcpIzBnhBLFcdR9kZJZVg49px20HHj8jHfe46hvsNpqzvfLLY92bAsEmaNaAaJqGAn_agjSGliE6vo78zcasZ6N1_9b__LfjJS65J1vSuHGV9enXkpFGSFazeY4--x-1_I_XspmW1aniRqr3kU8anv5KJv_VEcjnWP65nWlz_lJfz7-ea8WeW8pmy</recordid><startdate>19990415</startdate><enddate>19990415</enddate><creator>Füllekrug, Martin</creator><creator>Sukhorukov, Alexander I.</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope></search><sort><creationdate>19990415</creationdate><title>The contribution of anisotropic conductivity in the ionosphere to lightning flash bearing deviations in the ELF/ULF range</title><author>Füllekrug, Martin ; Sukhorukov, Alexander I.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4123-ff8fa4a40be0b709f93904f539d06ee827faa03a4ac39b3e7ba9794152f3cb0b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>External geophysics</topic><topic>Physics of the ionosphere</topic><topic>Wave propagation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Füllekrug, Martin</creatorcontrib><creatorcontrib>Sukhorukov, Alexander I.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Füllekrug, Martin</au><au>Sukhorukov, Alexander I.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The contribution of anisotropic conductivity in the ionosphere to lightning flash bearing deviations in the ELF/ULF range</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>1999-04-15</date><risdate>1999</risdate><volume>26</volume><issue>8</issue><spage>1109</spage><epage>1112</epage><pages>1109-1112</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>Lightning flash bearing deviations in the ELF/ULF range are monitored at two independently operating measurement instruments in Hollister, California, and Silberborn, Germany. The lightning flash bearing deviation at Hollister exhibits a rotational dependence ∼12°, associated with the conductivity contrast between the Earth's crust and the nearby Pacific Ocean. The bearing deviations at both stations exhibit a pronounced diurnal local time variation ∼11°. This diurnal variation is attributed to the anisotropic conductivity in the ionosphere during day‐ and nighttime conditions. No bearing deviation dependency from the source‐receiver distance can be distinguished. Correction for the mean rotational dependence at Hollister and the mean diurnal variation at both locations results in residual bearing deviations ∼ ±10° which are related to the variability of anisotropic conductivity in the ionosphere on a subdiurnal time scale.</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/1999GL900174</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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source | Wiley Free Content; Wiley-Blackwell AGU Digital Library; Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
subjects | Earth, ocean, space Exact sciences and technology External geophysics Physics of the ionosphere Wave propagation |
title | The contribution of anisotropic conductivity in the ionosphere to lightning flash bearing deviations in the ELF/ULF range |
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