Loading…
Peculiarities of cosmic ray modulation in the solar minimum 23/24
We study changes of the galactic cosmic ray (GCR) intensity for the ending period of the solar cycle 23 and the beginning of the solar cycle 24 using neutron monitors experimental data. We show that an increase of the GCR intensity in 2009 is generally related with decrease of the solar wind velocit...
Saved in:
| Published in: | Journal of geophysical research. Space physics 2014-06, Vol.119 (6), p.4164-4174 |
|---|---|
| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| cited_by | cdi_FETCH-LOGICAL-c4066-6c80bac3d01ba80c2c4d26be25536af25bee1575432345f47a90c48d62dd747b3 |
|---|---|
| cites | cdi_FETCH-LOGICAL-c4066-6c80bac3d01ba80c2c4d26be25536af25bee1575432345f47a90c48d62dd747b3 |
| container_end_page | 4174 |
| container_issue | 6 |
| container_start_page | 4164 |
| container_title | Journal of geophysical research. Space physics |
| container_volume | 119 |
| creator | Alania, M. V. Modzelewska, R. Wawrzynczak, A. |
| description | We study changes of the galactic cosmic ray (GCR) intensity for the ending period of the solar cycle 23 and the beginning of the solar cycle 24 using neutron monitors experimental data. We show that an increase of the GCR intensity in 2009 is generally related with decrease of the solar wind velocity U, the strength B of the interplanetary magnetic field (IMF), and the drift in negative (A 10 GV) is hard in the minimum and near‐minimum epoch. We do not recognize any nonordinary changes in the physical mechanism of modulation of the GCR intensity in the rigidity range of GCR particles to which neutron monitors respond. We compose 2‐D nonstationary model of transport equation to describe variations of the GCR intensity for 1996–2012 including the A > 0 (1996–2001) and the A |
| doi_str_mv | 10.1002/2013JA019500 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1554955656</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1554955656</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4066-6c80bac3d01ba80c2c4d26be25536af25bee1575432345f47a90c48d62dd747b3</originalsourceid><addsrcrecordid>eNp90Etr3DAQAGBTUmhI9tYfIOglh7o7eoxkHZc8NglLU0JKoBchyzJRaluJZJPuv4_DpqXkkLnMMHwzDFMUnyl8owBsyYDyyxVQjQAfin1GpS61ALb3t-YVfCoWOd_DHNXcorhfrH54N3XBpjAGn0lsiYu5D44kuyV9bKbOjiEOJAxkvPMkx84m0och9FNPGF8ycVh8bG2X_eI1HxQ_z05vjs_LzdX64ni1KZ0AKUvpKqit4w3Q2lbgmBMNk7VniFzalmHtPUWFgjMusBXKanCiaiRrGiVUzQ-Ko93ehxQfJ59H04fsfNfZwccpG4ooNKJEOdMvb-h9nNIwX2eoVpVALSS-qySvOCjF-Ky-7pRLMefkW_OQQm_T1lAwL483_z9-5nzHn0Lnt-9ac7m-XiEF8XJwuZsKefR__k3Z9NtIxRWa2-9rI35tKn1-q80Jfwawzo75</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1638307723</pqid></control><display><type>article</type><title>Peculiarities of cosmic ray modulation in the solar minimum 23/24</title><source>Wiley-Blackwell Read & Publish Collection</source><creator>Alania, M. V. ; Modzelewska, R. ; Wawrzynczak, A.</creator><creatorcontrib>Alania, M. V. ; Modzelewska, R. ; Wawrzynczak, A.</creatorcontrib><description>We study changes of the galactic cosmic ray (GCR) intensity for the ending period of the solar cycle 23 and the beginning of the solar cycle 24 using neutron monitors experimental data. We show that an increase of the GCR intensity in 2009 is generally related with decrease of the solar wind velocity U, the strength B of the interplanetary magnetic field (IMF), and the drift in negative (A < 0) polarity epoch. We present that temporal changes of rigidity dependence of the GCR intensity variation, before reaching maximum level in 2009 and after it, do not noticeably differ from each other. The rigidity spectrum of the GCR intensity variations calculated based on neutron monitors data (for rigidities > 10 GV) is hard in the minimum and near‐minimum epoch. We do not recognize any nonordinary changes in the physical mechanism of modulation of the GCR intensity in the rigidity range of GCR particles to which neutron monitors respond. We compose 2‐D nonstationary model of transport equation to describe variations of the GCR intensity for 1996–2012 including the A > 0 (1996–2001) and the A < 0 (2002–2012) periods; diffusion coefficient of cosmic rays for rigidity 10–15 GV is increased by ~ 30% in 2009 (A < 0) comparing with 1996 (A > 0). We believe that the proposed model is relatively realistic, and obtained results are satisfactorily compatible with neutron monitors data.
Key Points
Relationships between cosmic rays and solar wind parameters in 2008‐2010
Rigidity dependence of cosmic ray variations during solar minimum 23/24
Two‐dimensional nonstationary modeling of the GCR intensity during 1996–2012</description><identifier>ISSN: 2169-9380</identifier><identifier>EISSN: 2169-9402</identifier><identifier>DOI: 10.1002/2013JA019500</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Change detection ; Cosmic ray modulation ; Cosmic rays ; Diffusion coefficient ; Interplanetary magnetic field ; Magnetic fields ; modeling of cosmic ray transport ; Modulation ; Monitors ; Polarity ; Rigidity ; rigidity dependence of GCR variation ; solar activity ; Solar cycle ; Solar minimum ; Solar wind ; Solar wind parameters ; Solar wind velocity ; Two dimensional models ; Wind speed</subject><ispartof>Journal of geophysical research. Space physics, 2014-06, Vol.119 (6), p.4164-4174</ispartof><rights>2014. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4066-6c80bac3d01ba80c2c4d26be25536af25bee1575432345f47a90c48d62dd747b3</citedby><cites>FETCH-LOGICAL-c4066-6c80bac3d01ba80c2c4d26be25536af25bee1575432345f47a90c48d62dd747b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Alania, M. V.</creatorcontrib><creatorcontrib>Modzelewska, R.</creatorcontrib><creatorcontrib>Wawrzynczak, A.</creatorcontrib><title>Peculiarities of cosmic ray modulation in the solar minimum 23/24</title><title>Journal of geophysical research. Space physics</title><addtitle>J. Geophys. Res. Space Physics</addtitle><description>We study changes of the galactic cosmic ray (GCR) intensity for the ending period of the solar cycle 23 and the beginning of the solar cycle 24 using neutron monitors experimental data. We show that an increase of the GCR intensity in 2009 is generally related with decrease of the solar wind velocity U, the strength B of the interplanetary magnetic field (IMF), and the drift in negative (A < 0) polarity epoch. We present that temporal changes of rigidity dependence of the GCR intensity variation, before reaching maximum level in 2009 and after it, do not noticeably differ from each other. The rigidity spectrum of the GCR intensity variations calculated based on neutron monitors data (for rigidities > 10 GV) is hard in the minimum and near‐minimum epoch. We do not recognize any nonordinary changes in the physical mechanism of modulation of the GCR intensity in the rigidity range of GCR particles to which neutron monitors respond. We compose 2‐D nonstationary model of transport equation to describe variations of the GCR intensity for 1996–2012 including the A > 0 (1996–2001) and the A < 0 (2002–2012) periods; diffusion coefficient of cosmic rays for rigidity 10–15 GV is increased by ~ 30% in 2009 (A < 0) comparing with 1996 (A > 0). We believe that the proposed model is relatively realistic, and obtained results are satisfactorily compatible with neutron monitors data.
Key Points
Relationships between cosmic rays and solar wind parameters in 2008‐2010
Rigidity dependence of cosmic ray variations during solar minimum 23/24
Two‐dimensional nonstationary modeling of the GCR intensity during 1996–2012</description><subject>Change detection</subject><subject>Cosmic ray modulation</subject><subject>Cosmic rays</subject><subject>Diffusion coefficient</subject><subject>Interplanetary magnetic field</subject><subject>Magnetic fields</subject><subject>modeling of cosmic ray transport</subject><subject>Modulation</subject><subject>Monitors</subject><subject>Polarity</subject><subject>Rigidity</subject><subject>rigidity dependence of GCR variation</subject><subject>solar activity</subject><subject>Solar cycle</subject><subject>Solar minimum</subject><subject>Solar wind</subject><subject>Solar wind parameters</subject><subject>Solar wind velocity</subject><subject>Two dimensional models</subject><subject>Wind speed</subject><issn>2169-9380</issn><issn>2169-9402</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp90Etr3DAQAGBTUmhI9tYfIOglh7o7eoxkHZc8NglLU0JKoBchyzJRaluJZJPuv4_DpqXkkLnMMHwzDFMUnyl8owBsyYDyyxVQjQAfin1GpS61ALb3t-YVfCoWOd_DHNXcorhfrH54N3XBpjAGn0lsiYu5D44kuyV9bKbOjiEOJAxkvPMkx84m0och9FNPGF8ycVh8bG2X_eI1HxQ_z05vjs_LzdX64ni1KZ0AKUvpKqit4w3Q2lbgmBMNk7VniFzalmHtPUWFgjMusBXKanCiaiRrGiVUzQ-Ko93ehxQfJ59H04fsfNfZwccpG4ooNKJEOdMvb-h9nNIwX2eoVpVALSS-qySvOCjF-Ky-7pRLMefkW_OQQm_T1lAwL483_z9-5nzHn0Lnt-9ac7m-XiEF8XJwuZsKefR__k3Z9NtIxRWa2-9rI35tKn1-q80Jfwawzo75</recordid><startdate>201406</startdate><enddate>201406</enddate><creator>Alania, M. V.</creator><creator>Modzelewska, R.</creator><creator>Wawrzynczak, A.</creator><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>8FD</scope><scope>H8D</scope><scope>KL.</scope><scope>L7M</scope></search><sort><creationdate>201406</creationdate><title>Peculiarities of cosmic ray modulation in the solar minimum 23/24</title><author>Alania, M. V. ; Modzelewska, R. ; Wawrzynczak, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4066-6c80bac3d01ba80c2c4d26be25536af25bee1575432345f47a90c48d62dd747b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Change detection</topic><topic>Cosmic ray modulation</topic><topic>Cosmic rays</topic><topic>Diffusion coefficient</topic><topic>Interplanetary magnetic field</topic><topic>Magnetic fields</topic><topic>modeling of cosmic ray transport</topic><topic>Modulation</topic><topic>Monitors</topic><topic>Polarity</topic><topic>Rigidity</topic><topic>rigidity dependence of GCR variation</topic><topic>solar activity</topic><topic>Solar cycle</topic><topic>Solar minimum</topic><topic>Solar wind</topic><topic>Solar wind parameters</topic><topic>Solar wind velocity</topic><topic>Two dimensional models</topic><topic>Wind speed</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Alania, M. V.</creatorcontrib><creatorcontrib>Modzelewska, R.</creatorcontrib><creatorcontrib>Wawrzynczak, A.</creatorcontrib><collection>Istex</collection><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>Alania, M. V.</au><au>Modzelewska, R.</au><au>Wawrzynczak, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Peculiarities of cosmic ray modulation in the solar minimum 23/24</atitle><jtitle>Journal of geophysical research. Space physics</jtitle><addtitle>J. Geophys. Res. Space Physics</addtitle><date>2014-06</date><risdate>2014</risdate><volume>119</volume><issue>6</issue><spage>4164</spage><epage>4174</epage><pages>4164-4174</pages><issn>2169-9380</issn><eissn>2169-9402</eissn><abstract>We study changes of the galactic cosmic ray (GCR) intensity for the ending period of the solar cycle 23 and the beginning of the solar cycle 24 using neutron monitors experimental data. We show that an increase of the GCR intensity in 2009 is generally related with decrease of the solar wind velocity U, the strength B of the interplanetary magnetic field (IMF), and the drift in negative (A < 0) polarity epoch. We present that temporal changes of rigidity dependence of the GCR intensity variation, before reaching maximum level in 2009 and after it, do not noticeably differ from each other. The rigidity spectrum of the GCR intensity variations calculated based on neutron monitors data (for rigidities > 10 GV) is hard in the minimum and near‐minimum epoch. We do not recognize any nonordinary changes in the physical mechanism of modulation of the GCR intensity in the rigidity range of GCR particles to which neutron monitors respond. We compose 2‐D nonstationary model of transport equation to describe variations of the GCR intensity for 1996–2012 including the A > 0 (1996–2001) and the A < 0 (2002–2012) periods; diffusion coefficient of cosmic rays for rigidity 10–15 GV is increased by ~ 30% in 2009 (A < 0) comparing with 1996 (A > 0). We believe that the proposed model is relatively realistic, and obtained results are satisfactorily compatible with neutron monitors data.
Key Points
Relationships between cosmic rays and solar wind parameters in 2008‐2010
Rigidity dependence of cosmic ray variations during solar minimum 23/24
Two‐dimensional nonstationary modeling of the GCR intensity during 1996–2012</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2013JA019500</doi><tpages>11</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2169-9380 |
| ispartof | Journal of geophysical research. Space physics, 2014-06, Vol.119 (6), p.4164-4174 |
| issn | 2169-9380 2169-9402 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1554955656 |
| source | Wiley-Blackwell Read & Publish Collection |
| subjects | Change detection Cosmic ray modulation Cosmic rays Diffusion coefficient Interplanetary magnetic field Magnetic fields modeling of cosmic ray transport Modulation Monitors Polarity Rigidity rigidity dependence of GCR variation solar activity Solar cycle Solar minimum Solar wind Solar wind parameters Solar wind velocity Two dimensional models Wind speed |
| title | Peculiarities of cosmic ray modulation in the solar minimum 23/24 |
| url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-27T12%3A49%3A43IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Peculiarities%20of%20cosmic%20ray%20modulation%20in%20the%20solar%20minimum%2023/24&rft.jtitle=Journal%20of%20geophysical%20research.%20Space%20physics&rft.au=Alania,%20M.%20V.&rft.date=2014-06&rft.volume=119&rft.issue=6&rft.spage=4164&rft.epage=4174&rft.pages=4164-4174&rft.issn=2169-9380&rft.eissn=2169-9402&rft_id=info:doi/10.1002/2013JA019500&rft_dat=%3Cproquest_cross%3E1554955656%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c4066-6c80bac3d01ba80c2c4d26be25536af25bee1575432345f47a90c48d62dd747b3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=1638307723&rft_id=info:pmid/&rfr_iscdi=true |