Model of Energy Spectrum Parameters of Ground Level Enhancement Events in Solar Cycle 23
Mewaldt et al. (2012) fitted the observations of the ground level enhancement (GLE) events during solar cycle 23 to the double power law equation to obtain the four spectral parameters, the normalization constant C, low‐energy power law slope γ1, high‐energy power law slope γ2, and break energy E0....
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Veröffentlicht in: | Journal of geophysical research. Space physics 2018-01, Vol.123 (1), p.76-92 |
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description | Mewaldt et al. (2012) fitted the observations of the ground level enhancement (GLE) events during solar cycle 23 to the double power law equation to obtain the four spectral parameters, the normalization constant C, low‐energy power law slope γ1, high‐energy power law slope γ2, and break energy E0. There are 16 GLEs from which we select 13 for study by excluding some events with complicated situation. We analyze the four parameters with conditions of the corresponding solar events. According to solar event conditions, we divide the GLEs into two groups, one with strong acceleration by interplanetary shocks and another one without strong acceleration. By fitting the four parameters with solar event conditions we obtain models of the parameters for the two groups of GLEs separately. Therefore, we establish a model of energy spectrum of solar cycle 23 GLEs, which may be used in prediction in the future.
Key Points
GLE energy spectrum parameters are studied with conditions of the corresponding solar events
Solar conditions are used to determine whether there is strong interplanetary shock acceleration
Preliminary prediction model of energy spectrum of ground level enhancement events is established |
doi_str_mv | 10.1002/2017JA024638 |
format | Article |
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Key Points
GLE energy spectrum parameters are studied with conditions of the corresponding solar events
Solar conditions are used to determine whether there is strong interplanetary shock acceleration
Preliminary prediction model of energy spectrum of ground level enhancement events is established</description><identifier>ISSN: 2169-9380</identifier><identifier>EISSN: 2169-9402</identifier><identifier>DOI: 10.1002/2017JA024638</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Acceleration ; coronal mass ejection (CME) ; Energy spectra ; energy spectrum ; Ground level ; ground level enhancement (GLE) ; interplanetary shock ; Mathematical models ; Power law ; prediction model ; Solar cycle ; solar energetic particle (SEP) ; Solar energy</subject><ispartof>Journal of geophysical research. Space physics, 2018-01, Vol.123 (1), p.76-92</ispartof><rights>2018. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3075-4272f703ba8250fb6a5055df2082c6155009641c7a671093f4f289156fdccd6a3</citedby><cites>FETCH-LOGICAL-c3075-4272f703ba8250fb6a5055df2082c6155009641c7a671093f4f289156fdccd6a3</cites><orcidid>0000-0002-5776-455X ; 0000-0002-3437-3716</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F2017JA024638$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2017JA024638$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,1433,27924,27925,45574,45575,46409,46833</link.rule.ids></links><search><creatorcontrib>Wu, S.‐S.</creatorcontrib><creatorcontrib>Qin, G.</creatorcontrib><title>Model of Energy Spectrum Parameters of Ground Level Enhancement Events in Solar Cycle 23</title><title>Journal of geophysical research. Space physics</title><description>Mewaldt et al. (2012) fitted the observations of the ground level enhancement (GLE) events during solar cycle 23 to the double power law equation to obtain the four spectral parameters, the normalization constant C, low‐energy power law slope γ1, high‐energy power law slope γ2, and break energy E0. There are 16 GLEs from which we select 13 for study by excluding some events with complicated situation. We analyze the four parameters with conditions of the corresponding solar events. According to solar event conditions, we divide the GLEs into two groups, one with strong acceleration by interplanetary shocks and another one without strong acceleration. By fitting the four parameters with solar event conditions we obtain models of the parameters for the two groups of GLEs separately. Therefore, we establish a model of energy spectrum of solar cycle 23 GLEs, which may be used in prediction in the future.
Key Points
GLE energy spectrum parameters are studied with conditions of the corresponding solar events
Solar conditions are used to determine whether there is strong interplanetary shock acceleration
Preliminary prediction model of energy spectrum of ground level enhancement events is established</description><subject>Acceleration</subject><subject>coronal mass ejection (CME)</subject><subject>Energy spectra</subject><subject>energy spectrum</subject><subject>Ground level</subject><subject>ground level enhancement (GLE)</subject><subject>interplanetary shock</subject><subject>Mathematical models</subject><subject>Power law</subject><subject>prediction model</subject><subject>Solar cycle</subject><subject>solar energetic particle (SEP)</subject><subject>Solar energy</subject><issn>2169-9380</issn><issn>2169-9402</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kFFLwzAQx4MoOHRvfoCAr1YvSZOmj2PU6ZgoTsG3kqWJbrTNTNpJv70ZU_DJe7g77n787_gjdEHgmgDQGwokm0-ApoLJIzSiRORJngI9_u2ZhFM0DmEDMWQcET5Cbw-uMjV2Fhet8e8DXm6N7nzf4CflVWM648N-O_Oubyu8MLtIF-2HarVpTNvhYhdzwOsWL12tPJ4OujaYsnN0YlUdzPinnqHX2-JlepcsHmf308ki0QwynqQ0ozYDtlKScrAroThwXlkKkmpBOAfIRUp0pkRGIGc2tVTGz4WttK6EYmfo8qC79e6zN6ErN673bTxZUgAhqJQZidTVgdLeheCNLbd-3Sg_lATKvX3lX_sizg7417o2w79sOZ89T3gKKWffCAttvg</recordid><startdate>201801</startdate><enddate>201801</enddate><creator>Wu, S.‐S.</creator><creator>Qin, G.</creator><general>Blackwell Publishing Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>8FD</scope><scope>H8D</scope><scope>KL.</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-5776-455X</orcidid><orcidid>https://orcid.org/0000-0002-3437-3716</orcidid></search><sort><creationdate>201801</creationdate><title>Model of Energy Spectrum Parameters of Ground Level Enhancement Events in Solar Cycle 23</title><author>Wu, S.‐S. ; Qin, G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3075-4272f703ba8250fb6a5055df2082c6155009641c7a671093f4f289156fdccd6a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Acceleration</topic><topic>coronal mass ejection (CME)</topic><topic>Energy spectra</topic><topic>energy spectrum</topic><topic>Ground level</topic><topic>ground level enhancement (GLE)</topic><topic>interplanetary shock</topic><topic>Mathematical models</topic><topic>Power law</topic><topic>prediction model</topic><topic>Solar cycle</topic><topic>solar energetic particle (SEP)</topic><topic>Solar energy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, S.‐S.</creatorcontrib><creatorcontrib>Qin, G.</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of geophysical research. Space physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, S.‐S.</au><au>Qin, G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Model of Energy Spectrum Parameters of Ground Level Enhancement Events in Solar Cycle 23</atitle><jtitle>Journal of geophysical research. Space physics</jtitle><date>2018-01</date><risdate>2018</risdate><volume>123</volume><issue>1</issue><spage>76</spage><epage>92</epage><pages>76-92</pages><issn>2169-9380</issn><eissn>2169-9402</eissn><abstract>Mewaldt et al. (2012) fitted the observations of the ground level enhancement (GLE) events during solar cycle 23 to the double power law equation to obtain the four spectral parameters, the normalization constant C, low‐energy power law slope γ1, high‐energy power law slope γ2, and break energy E0. There are 16 GLEs from which we select 13 for study by excluding some events with complicated situation. We analyze the four parameters with conditions of the corresponding solar events. According to solar event conditions, we divide the GLEs into two groups, one with strong acceleration by interplanetary shocks and another one without strong acceleration. By fitting the four parameters with solar event conditions we obtain models of the parameters for the two groups of GLEs separately. Therefore, we establish a model of energy spectrum of solar cycle 23 GLEs, which may be used in prediction in the future.
Key Points
GLE energy spectrum parameters are studied with conditions of the corresponding solar events
Solar conditions are used to determine whether there is strong interplanetary shock acceleration
Preliminary prediction model of energy spectrum of ground level enhancement events is established</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2017JA024638</doi><tpages>17</tpages><orcidid>https://orcid.org/0000-0002-5776-455X</orcidid><orcidid>https://orcid.org/0000-0002-3437-3716</orcidid></addata></record> |
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source | Access via Wiley Online Library; Wiley Online Library (Open Access Collection) |
subjects | Acceleration coronal mass ejection (CME) Energy spectra energy spectrum Ground level ground level enhancement (GLE) interplanetary shock Mathematical models Power law prediction model Solar cycle solar energetic particle (SEP) Solar energy |
title | Model of Energy Spectrum Parameters of Ground Level Enhancement Events in Solar Cycle 23 |
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