Statistical roles of storms and substorms in changing the entire outer zone relativistic electron population
Since storms/substorms can lead to flux enhancements of relativistic electrons (E > 500 keV) in one region of the outer zone (L ∼ 2–7) and simultaneously to flux decreases in another region, the final effects of storms/substorms on changing the entire outer zone relativistic electron population a...
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| Veröffentlicht in: | Journal of Geophysical Research. A. Space Physics 2009-12, Vol.114 (A12), p.n/a |
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| creator | Li, L. Y. Cao, J. B. Zhou, G. C. Li, X. |
| description | Since storms/substorms can lead to flux enhancements of relativistic electrons (E > 500 keV) in one region of the outer zone (L ∼ 2–7) and simultaneously to flux decreases in another region, the final effects of storms/substorms on changing the entire outer zone relativistic electron population are indicated by the total flux variation of the entire outer zone relativistic electrons. The total flux of the relativistic electrons is the summation of their omnidirectional integral fluxes over the entire outer zone. By analyzing the total flux variations of relativistic electrons in the entire outer zone during about 18 storms from August 1990 to March 1991, this paper investigates the statistical relationships between the total flux variations of the entire outer zone relativistic electrons and the intensities of storms/substorms. The statistical results indicate that the primary impact of a storm development is the net loss of relativistic electrons from the entire outer zone via the main phase losses of relativistic electrons, whereas the continuous intense substorm activity (average AE > 200 nT) can lead to the net increases of the relativistic electrons in the entire outer zone. Furthermore, the more intense the substorm activity, the larger the increases of the relativistic electrons, indicating that the continuous intense substorm activity can effectively supply relativistic electrons for the entire outer zone. Since the net increases of the relativistic electrons usually occur during the continuous intense substorm activity, the effective acceleration of the relativistic electron is correlated with the continuous intense substorm activity, e.g., the stochastic acceleration of electron by whistler mode chorus waves. |
| doi_str_mv | 10.1029/2009JA014333 |
| format | Article |
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Y. ; Cao, J. B. ; Zhou, G. C. ; Li, X.</creator><creatorcontrib>Li, L. Y. ; Cao, J. B. ; Zhou, G. C. ; Li, X.</creatorcontrib><description>Since storms/substorms can lead to flux enhancements of relativistic electrons (E > 500 keV) in one region of the outer zone (L ∼ 2–7) and simultaneously to flux decreases in another region, the final effects of storms/substorms on changing the entire outer zone relativistic electron population are indicated by the total flux variation of the entire outer zone relativistic electrons. The total flux of the relativistic electrons is the summation of their omnidirectional integral fluxes over the entire outer zone. By analyzing the total flux variations of relativistic electrons in the entire outer zone during about 18 storms from August 1990 to March 1991, this paper investigates the statistical relationships between the total flux variations of the entire outer zone relativistic electrons and the intensities of storms/substorms. The statistical results indicate that the primary impact of a storm development is the net loss of relativistic electrons from the entire outer zone via the main phase losses of relativistic electrons, whereas the continuous intense substorm activity (average AE > 200 nT) can lead to the net increases of the relativistic electrons in the entire outer zone. Furthermore, the more intense the substorm activity, the larger the increases of the relativistic electrons, indicating that the continuous intense substorm activity can effectively supply relativistic electrons for the entire outer zone. Since the net increases of the relativistic electrons usually occur during the continuous intense substorm activity, the effective acceleration of the relativistic electron is correlated with the continuous intense substorm activity, e.g., the stochastic acceleration of electron by whistler mode chorus waves.</description><identifier>ISSN: 0148-0227</identifier><identifier>ISSN: 2169-9380</identifier><identifier>EISSN: 2156-2202</identifier><identifier>EISSN: 2169-9402</identifier><identifier>DOI: 10.1029/2009JA014333</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Atmospheric sciences ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; Fluctuations ; Magnetism ; radiation belt ; relativistic electron ; storm/substorm ; Storms</subject><ispartof>Journal of Geophysical Research. A. 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Y.</creatorcontrib><creatorcontrib>Cao, J. B.</creatorcontrib><creatorcontrib>Zhou, G. C.</creatorcontrib><creatorcontrib>Li, X.</creatorcontrib><title>Statistical roles of storms and substorms in changing the entire outer zone relativistic electron population</title><title>Journal of Geophysical Research. A. Space Physics</title><addtitle>J. Geophys. Res</addtitle><description>Since storms/substorms can lead to flux enhancements of relativistic electrons (E > 500 keV) in one region of the outer zone (L ∼ 2–7) and simultaneously to flux decreases in another region, the final effects of storms/substorms on changing the entire outer zone relativistic electron population are indicated by the total flux variation of the entire outer zone relativistic electrons. The total flux of the relativistic electrons is the summation of their omnidirectional integral fluxes over the entire outer zone. By analyzing the total flux variations of relativistic electrons in the entire outer zone during about 18 storms from August 1990 to March 1991, this paper investigates the statistical relationships between the total flux variations of the entire outer zone relativistic electrons and the intensities of storms/substorms. The statistical results indicate that the primary impact of a storm development is the net loss of relativistic electrons from the entire outer zone via the main phase losses of relativistic electrons, whereas the continuous intense substorm activity (average AE > 200 nT) can lead to the net increases of the relativistic electrons in the entire outer zone. Furthermore, the more intense the substorm activity, the larger the increases of the relativistic electrons, indicating that the continuous intense substorm activity can effectively supply relativistic electrons for the entire outer zone. Since the net increases of the relativistic electrons usually occur during the continuous intense substorm activity, the effective acceleration of the relativistic electron is correlated with the continuous intense substorm activity, e.g., the stochastic acceleration of electron by whistler mode chorus waves.</description><subject>Atmospheric sciences</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Fluctuations</subject><subject>Magnetism</subject><subject>radiation belt</subject><subject>relativistic electron</subject><subject>storm/substorm</subject><subject>Storms</subject><issn>0148-0227</issn><issn>2169-9380</issn><issn>2156-2202</issn><issn>2169-9402</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqFkUtvEzEUhUcIJKK2O36AhQQrptjXr_EyqmggKm8Q7CzHudO6TOxgzwDl1-OQqEIswJsrH33nWL6naR4wesoomKdAqVnOKROc8zvNDJhULQCFu82sil1LAfT95qSUa1qPkEpQNmuG96MbQxmDdwPJacBCUk_KmPKmEBfXpEyrwy1E4q9cvAzxkoxXSDCOISNJ04iZ_EwRScahhn37HUdwQD_mFMk2baednuJxc693Q8GTwzxqPp4_-3D2vL14vXhxNr9ovWS6awV6r5lEcMoYCUoL1Eb30hu3AkN9ZwQFB1KtnWco19orDWtqQK6EZyvgR83jfe42p68TltFuQvE4DC5imorlSgDTnP0XBMZlJ7Sq4MO_wOs05Vg_YTvFdk9LU6Ene8jnVErG3m5z2Lh8Yxm1u47snx1V_NEh05W6_T676EO59QBwLTqz4_ie-x4GvPlnpl0u3s2rQLvqaveu2gb-uHW5_MUqzbW0n14t7DlfvuEv34L9zH8BwNOupQ</recordid><startdate>200912</startdate><enddate>200912</enddate><creator>Li, L. 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Y. ; Cao, J. B. ; Zhou, G. C. ; Li, X.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5178-4ecc715e2a69952674e797f5c9ab290c89402a256dac1e5d7c672d0925b4c1b23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Atmospheric sciences</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>Fluctuations</topic><topic>Magnetism</topic><topic>radiation belt</topic><topic>relativistic electron</topic><topic>storm/substorm</topic><topic>Storms</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, L. Y.</creatorcontrib><creatorcontrib>Cao, J. B.</creatorcontrib><creatorcontrib>Zhou, G. C.</creatorcontrib><creatorcontrib>Li, X.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Science Database</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</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>Earthquake Engineering Abstracts</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of Geophysical Research. A. Space Physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, L. Y.</au><au>Cao, J. B.</au><au>Zhou, G. C.</au><au>Li, X.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Statistical roles of storms and substorms in changing the entire outer zone relativistic electron population</atitle><jtitle>Journal of Geophysical Research. A. Space Physics</jtitle><addtitle>J. Geophys. Res</addtitle><date>2009-12</date><risdate>2009</risdate><volume>114</volume><issue>A12</issue><epage>n/a</epage><issn>0148-0227</issn><issn>2169-9380</issn><eissn>2156-2202</eissn><eissn>2169-9402</eissn><abstract>Since storms/substorms can lead to flux enhancements of relativistic electrons (E > 500 keV) in one region of the outer zone (L ∼ 2–7) and simultaneously to flux decreases in another region, the final effects of storms/substorms on changing the entire outer zone relativistic electron population are indicated by the total flux variation of the entire outer zone relativistic electrons. The total flux of the relativistic electrons is the summation of their omnidirectional integral fluxes over the entire outer zone. By analyzing the total flux variations of relativistic electrons in the entire outer zone during about 18 storms from August 1990 to March 1991, this paper investigates the statistical relationships between the total flux variations of the entire outer zone relativistic electrons and the intensities of storms/substorms. The statistical results indicate that the primary impact of a storm development is the net loss of relativistic electrons from the entire outer zone via the main phase losses of relativistic electrons, whereas the continuous intense substorm activity (average AE > 200 nT) can lead to the net increases of the relativistic electrons in the entire outer zone. Furthermore, the more intense the substorm activity, the larger the increases of the relativistic electrons, indicating that the continuous intense substorm activity can effectively supply relativistic electrons for the entire outer zone. Since the net increases of the relativistic electrons usually occur during the continuous intense substorm activity, the effective acceleration of the relativistic electron is correlated with the continuous intense substorm activity, e.g., the stochastic acceleration of electron by whistler mode chorus waves.</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2009JA014333</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Atmospheric sciences Earth sciences Earth, ocean, space Exact sciences and technology Fluctuations Magnetism radiation belt relativistic electron storm/substorm Storms |
| title | Statistical roles of storms and substorms in changing the entire outer zone relativistic electron population |
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