Variations of nitric oxide in the mesosphere and lower thermosphere over Antarctica associated with a magnetic storm in April 2012
We report extreme enhancements of the nitric oxide (NO) column density observed with the ground‐based millimeter‐wave spectroscopic radiometer installed at Syowa Station, Antarctica, during a large geomagnetic storm in April 2012. From the NO spectrum line shape and NO column density relationship wi...
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| Veröffentlicht in: | Geophysical research letters 2014-04, Vol.41 (7), p.2568-2574 |
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| creator | Isono, Yasuko Mizuno, Akira Nagahama, Tomoo Miyoshi, Yoshizumi Nakamura, Takuji Kataoka, Ryuho Tsutsumi, Masaki Ejiri, Mitsumu K. Fujiwara, Hitoshi Maezawa, Hiroyuki |
| description | We report extreme enhancements of the nitric oxide (NO) column density observed with the ground‐based millimeter‐wave spectroscopic radiometer installed at Syowa Station, Antarctica, during a large geomagnetic storm in April 2012. From the NO spectrum line shape and NO column density relationship with solar radiation, we concluded that the NO was emitted in the altitude range between 75 km and 100 km. The column density of NO gradually increased during the recovery phase. In addition to variations on a time frame of several days, we found diurnal variations. The increase of NO was related to precipitated electrons in the energy range of 30–300 keV observed by Polar‐orbiting Operational Environmental Satellite (POES)/The Meteorological Operational (METOP). We found a rapid response (within 1 h) and a one‐to‐one correspondence between them. For the first time, we show that a remarkable increase of the column density of NO is caused by dawn‐dusk asymmetry of the plasma sheet electrons.
Key Points
Sporadic NO enhancement due to precipitated electrons was clearly detected
Correlation between NO intensity and electron flux is analyzed in detail
NO increase at UT 0 was caused by dawn‐dusk asymmetry of plasma sheet electrons |
| doi_str_mv | 10.1002/2014GL059360 |
| format | Article |
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Key Points
Sporadic NO enhancement due to precipitated electrons was clearly detected
Correlation between NO intensity and electron flux is analyzed in detail
NO increase at UT 0 was caused by dawn‐dusk asymmetry of plasma sheet electrons</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1002/2014GL059360</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Antarctica ; Asymmetry ; Density ; Diurnal variations ; geomagnetic storm ; Geophysics ; lower thermosphere ; Mesosphere ; Meteorology ; Nitric oxide ; precipitated electrons ; Radiometers ; Solar radiation</subject><ispartof>Geophysical research letters, 2014-04, Vol.41 (7), p.2568-2574</ispartof><rights>2014. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4119-af71ae5d0a4b31f2a1f2360afa1a17986c88a723b18cdeed9f84cfddbe8f593f3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F2014GL059360$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2014GL059360$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,1427,11493,27901,27902,45550,45551,46384,46443,46808,46867</link.rule.ids></links><search><creatorcontrib>Isono, Yasuko</creatorcontrib><creatorcontrib>Mizuno, Akira</creatorcontrib><creatorcontrib>Nagahama, Tomoo</creatorcontrib><creatorcontrib>Miyoshi, Yoshizumi</creatorcontrib><creatorcontrib>Nakamura, Takuji</creatorcontrib><creatorcontrib>Kataoka, Ryuho</creatorcontrib><creatorcontrib>Tsutsumi, Masaki</creatorcontrib><creatorcontrib>Ejiri, Mitsumu K.</creatorcontrib><creatorcontrib>Fujiwara, Hitoshi</creatorcontrib><creatorcontrib>Maezawa, Hiroyuki</creatorcontrib><title>Variations of nitric oxide in the mesosphere and lower thermosphere over Antarctica associated with a magnetic storm in April 2012</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>We report extreme enhancements of the nitric oxide (NO) column density observed with the ground‐based millimeter‐wave spectroscopic radiometer installed at Syowa Station, Antarctica, during a large geomagnetic storm in April 2012. From the NO spectrum line shape and NO column density relationship with solar radiation, we concluded that the NO was emitted in the altitude range between 75 km and 100 km. The column density of NO gradually increased during the recovery phase. In addition to variations on a time frame of several days, we found diurnal variations. The increase of NO was related to precipitated electrons in the energy range of 30–300 keV observed by Polar‐orbiting Operational Environmental Satellite (POES)/The Meteorological Operational (METOP). We found a rapid response (within 1 h) and a one‐to‐one correspondence between them. For the first time, we show that a remarkable increase of the column density of NO is caused by dawn‐dusk asymmetry of the plasma sheet electrons.
Key Points
Sporadic NO enhancement due to precipitated electrons was clearly detected
Correlation between NO intensity and electron flux is analyzed in detail
NO increase at UT 0 was caused by dawn‐dusk asymmetry of plasma sheet electrons</description><subject>Antarctica</subject><subject>Asymmetry</subject><subject>Density</subject><subject>Diurnal variations</subject><subject>geomagnetic storm</subject><subject>Geophysics</subject><subject>lower thermosphere</subject><subject>Mesosphere</subject><subject>Meteorology</subject><subject>Nitric oxide</subject><subject>precipitated electrons</subject><subject>Radiometers</subject><subject>Solar radiation</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqFkU-P0zAQxS0EEmXhxgewxIVLYBzHdnKsVlCQyn9YuFnTZEy9JHGxXbp75ZPjUkCICwfL1szvPft5GLsv4JEAqB_XIJrVGlQnNdxgC9E1TdUCmJtsAdCVc230bXYnpUsAkCDFgn2_wOgx-zAnHhyffY6-5-HKD8T9zPOW-EQppN2WInGcBz6GA8VjI06_y-FbqSznjLHPvkeOKYW-uNLADz5vOfIJP89UejzlEKej83IX_cjLi-u77JbDMdG9X_sZ-_D0yfvzZ9X61er5-XJd9Y0QXYXOCCQ1ADYbKVyNZZWc6FCgMF2r-7ZFU8uNaPuBaOhc2_RuGDbUuvIjTp6xhyffXQxf95SynXzqaRxxprBPVmgjlJLGyP-jSjatkgC6oA_-QS_DPs4lSDFsatBC_6TqE3XwI13bkn3CeG0F2OPg7N-Ds6u3a1Uu6IqoOol8ynT1R4Txi9VGGmU_vlzZC_360zv55oVV8gcFrJyd</recordid><startdate>20140416</startdate><enddate>20140416</enddate><creator>Isono, Yasuko</creator><creator>Mizuno, Akira</creator><creator>Nagahama, Tomoo</creator><creator>Miyoshi, Yoshizumi</creator><creator>Nakamura, Takuji</creator><creator>Kataoka, Ryuho</creator><creator>Tsutsumi, Masaki</creator><creator>Ejiri, Mitsumu K.</creator><creator>Fujiwara, Hitoshi</creator><creator>Maezawa, Hiroyuki</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope><scope>7SR</scope><scope>JG9</scope></search><sort><creationdate>20140416</creationdate><title>Variations of nitric oxide in the mesosphere and lower thermosphere over Antarctica associated with a magnetic storm in April 2012</title><author>Isono, Yasuko ; Mizuno, Akira ; Nagahama, Tomoo ; Miyoshi, Yoshizumi ; Nakamura, Takuji ; Kataoka, Ryuho ; Tsutsumi, Masaki ; Ejiri, Mitsumu K. ; Fujiwara, Hitoshi ; Maezawa, Hiroyuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4119-af71ae5d0a4b31f2a1f2360afa1a17986c88a723b18cdeed9f84cfddbe8f593f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Antarctica</topic><topic>Asymmetry</topic><topic>Density</topic><topic>Diurnal variations</topic><topic>geomagnetic storm</topic><topic>Geophysics</topic><topic>lower thermosphere</topic><topic>Mesosphere</topic><topic>Meteorology</topic><topic>Nitric oxide</topic><topic>precipitated electrons</topic><topic>Radiometers</topic><topic>Solar radiation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Isono, Yasuko</creatorcontrib><creatorcontrib>Mizuno, Akira</creatorcontrib><creatorcontrib>Nagahama, Tomoo</creatorcontrib><creatorcontrib>Miyoshi, Yoshizumi</creatorcontrib><creatorcontrib>Nakamura, Takuji</creatorcontrib><creatorcontrib>Kataoka, Ryuho</creatorcontrib><creatorcontrib>Tsutsumi, Masaki</creatorcontrib><creatorcontrib>Ejiri, Mitsumu K.</creatorcontrib><creatorcontrib>Fujiwara, Hitoshi</creatorcontrib><creatorcontrib>Maezawa, Hiroyuki</creatorcontrib><collection>Istex</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Engineered Materials Abstracts</collection><collection>Materials Research Database</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Isono, Yasuko</au><au>Mizuno, Akira</au><au>Nagahama, Tomoo</au><au>Miyoshi, Yoshizumi</au><au>Nakamura, Takuji</au><au>Kataoka, Ryuho</au><au>Tsutsumi, Masaki</au><au>Ejiri, Mitsumu K.</au><au>Fujiwara, Hitoshi</au><au>Maezawa, Hiroyuki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Variations of nitric oxide in the mesosphere and lower thermosphere over Antarctica associated with a magnetic storm in April 2012</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2014-04-16</date><risdate>2014</risdate><volume>41</volume><issue>7</issue><spage>2568</spage><epage>2574</epage><pages>2568-2574</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><abstract>We report extreme enhancements of the nitric oxide (NO) column density observed with the ground‐based millimeter‐wave spectroscopic radiometer installed at Syowa Station, Antarctica, during a large geomagnetic storm in April 2012. From the NO spectrum line shape and NO column density relationship with solar radiation, we concluded that the NO was emitted in the altitude range between 75 km and 100 km. The column density of NO gradually increased during the recovery phase. In addition to variations on a time frame of several days, we found diurnal variations. The increase of NO was related to precipitated electrons in the energy range of 30–300 keV observed by Polar‐orbiting Operational Environmental Satellite (POES)/The Meteorological Operational (METOP). We found a rapid response (within 1 h) and a one‐to‐one correspondence between them. For the first time, we show that a remarkable increase of the column density of NO is caused by dawn‐dusk asymmetry of the plasma sheet electrons.
Key Points
Sporadic NO enhancement due to precipitated electrons was clearly detected
Correlation between NO intensity and electron flux is analyzed in detail
NO increase at UT 0 was caused by dawn‐dusk asymmetry of plasma sheet electrons</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2014GL059360</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Antarctica Asymmetry Density Diurnal variations geomagnetic storm Geophysics lower thermosphere Mesosphere Meteorology Nitric oxide precipitated electrons Radiometers Solar radiation |
| title | Variations of nitric oxide in the mesosphere and lower thermosphere over Antarctica associated with a magnetic storm in April 2012 |
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