The interhemispheric and <i>F</i> region dynamo currents revisited with the Swarm constellation
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- Hermann Lühr
- German Research Centre for Geosciences Potsdam Germany
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- Guram Kervalishvili
- German Research Centre for Geosciences Potsdam Germany
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- Ingo Michaelis
- German Research Centre for Geosciences Potsdam Germany
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- Jan Rauberg
- German Research Centre for Geosciences Potsdam Germany
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- Patricia Ritter
- German Research Centre for Geosciences Potsdam Germany
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- Jaeheung Park
- Korea Astronomy and Space Science Institute Daejeon South Korea
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- Jose M. G. Merayo
- DTU Space Technical University of Denmark Lyngby Denmark
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- Peter Brauer
- DTU Space Technical University of Denmark Lyngby Denmark
書誌事項
- 公開日
- 2015-05-04
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1002/2015gl063662
- 公開者
- American Geophysical Union (AGU)
この論文をさがす
説明
<jats:title>Abstract</jats:title><jats:p>Based on magnetic field data sampled by the Swarm satellite constellation it is possible for the first time to determine uniquely <jats:italic>F</jats:italic> region currents at low latitudes. Initial results are presented from the first 200 days of formation flight (17 April to 5 November 2014). Detailed results have been obtained for interhemispheric field‐aligned currents connecting the solar quiet day magnetic variation (<jats:italic>Sq</jats:italic>) current systems in the two hemispheres. We obtain prominent currents from the Southern (winter) Hemisphere to the Northern around noon. Weaker currents in opposite direction are observed during morning and evening hours. Furthermore, we could confirm the existence of vertical currents above the dip equator, downward around noon and upward around sunset. For both current systems we present and discuss longitudinal variations.</jats:p>
収録刊行物
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- Geophysical Research Letters
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Geophysical Research Letters 42 (9), 3069-3075, 2015-05-04
American Geophysical Union (AGU)