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Seasonal variation of auroral electron precipitation
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| Zeitschriftentitel: | Geophysical Research Letters |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Geophysical Research Letters, 31, 2004, 4 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Geophysical Union (AGU)
|
| Schlagwörter: |
| author_facet |
Barth, C. A. Baker, D. N. Bailey, S. M. Barth, C. A. Baker, D. N. Bailey, S. M. |
|---|---|
| author |
Barth, C. A. Baker, D. N. Bailey, S. M. |
| spellingShingle |
Barth, C. A. Baker, D. N. Bailey, S. M. Geophysical Research Letters Seasonal variation of auroral electron precipitation General Earth and Planetary Sciences Geophysics |
| author_sort |
barth, c. a. |
| spelling |
Barth, C. A. Baker, D. N. Bailey, S. M. 0094-8276 1944-8007 American Geophysical Union (AGU) General Earth and Planetary Sciences Geophysics http://dx.doi.org/10.1029/2003gl018892 <jats:p>Global observations of nitric oxide obtained from the Student Nitric Oxide Explorer (SNOE) have been used to determine the density of nitric oxide in the lower thermosphere. A thermospheric model which takes into account all of the photochemical processes that produce and destroy nitric oxide has been used to deduce the flux of precipitating auroral electrons that produce nitric oxide. The results of this analysis allow us to infer the daily variability of precipitating electron energy deposition. The most important result of this paper is that there is a clear‐cut minimum in the electron flux at the time of the summer solstice in both hemispheres. This seasonal dependence of precipitating auroral electrons supports the idea that auroral arcs are suppressed in the solar‐illuminated hemisphere due to high ionospheric conductivity. The strength of the seasonal variations suggests that the bulk of the energy deposition may be due to discrete auroral events.</jats:p> Seasonal variation of auroral electron precipitation Geophysical Research Letters |
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| title |
Seasonal variation of auroral electron precipitation |
| title_unstemmed |
Seasonal variation of auroral electron precipitation |
| title_full |
Seasonal variation of auroral electron precipitation |
| title_fullStr |
Seasonal variation of auroral electron precipitation |
| title_full_unstemmed |
Seasonal variation of auroral electron precipitation |
| title_short |
Seasonal variation of auroral electron precipitation |
| title_sort |
seasonal variation of auroral electron precipitation |
| topic |
General Earth and Planetary Sciences Geophysics |
| url |
http://dx.doi.org/10.1029/2003gl018892 |
| publishDate |
2004 |
| physical |
|
| description |
<jats:p>Global observations of nitric oxide obtained from the Student Nitric Oxide Explorer (SNOE) have been used to determine the density of nitric oxide in the lower thermosphere. A thermospheric model which takes into account all of the photochemical processes that produce and destroy nitric oxide has been used to deduce the flux of precipitating auroral electrons that produce nitric oxide. The results of this analysis allow us to infer the daily variability of precipitating electron energy deposition. The most important result of this paper is that there is a clear‐cut minimum in the electron flux at the time of the summer solstice in both hemispheres. This seasonal dependence of precipitating auroral electrons supports the idea that auroral arcs are suppressed in the solar‐illuminated hemisphere due to high ionospheric conductivity. The strength of the seasonal variations suggests that the bulk of the energy deposition may be due to discrete auroral events.</jats:p> |
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| author | Barth, C. A., Baker, D. N., Bailey, S. M. |
| author_facet | Barth, C. A., Baker, D. N., Bailey, S. M., Barth, C. A., Baker, D. N., Bailey, S. M. |
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| description | <jats:p>Global observations of nitric oxide obtained from the Student Nitric Oxide Explorer (SNOE) have been used to determine the density of nitric oxide in the lower thermosphere. A thermospheric model which takes into account all of the photochemical processes that produce and destroy nitric oxide has been used to deduce the flux of precipitating auroral electrons that produce nitric oxide. The results of this analysis allow us to infer the daily variability of precipitating electron energy deposition. The most important result of this paper is that there is a clear‐cut minimum in the electron flux at the time of the summer solstice in both hemispheres. This seasonal dependence of precipitating auroral electrons supports the idea that auroral arcs are suppressed in the solar‐illuminated hemisphere due to high ionospheric conductivity. The strength of the seasonal variations suggests that the bulk of the energy deposition may be due to discrete auroral events.</jats:p> |
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| imprint | American Geophysical Union (AGU), 2004 |
| imprint_str_mv | American Geophysical Union (AGU), 2004 |
| institution | DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-D161, DE-Zwi2 |
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| source_id | 49 |
| spelling | Barth, C. A. Baker, D. N. Bailey, S. M. 0094-8276 1944-8007 American Geophysical Union (AGU) General Earth and Planetary Sciences Geophysics http://dx.doi.org/10.1029/2003gl018892 <jats:p>Global observations of nitric oxide obtained from the Student Nitric Oxide Explorer (SNOE) have been used to determine the density of nitric oxide in the lower thermosphere. A thermospheric model which takes into account all of the photochemical processes that produce and destroy nitric oxide has been used to deduce the flux of precipitating auroral electrons that produce nitric oxide. The results of this analysis allow us to infer the daily variability of precipitating electron energy deposition. The most important result of this paper is that there is a clear‐cut minimum in the electron flux at the time of the summer solstice in both hemispheres. This seasonal dependence of precipitating auroral electrons supports the idea that auroral arcs are suppressed in the solar‐illuminated hemisphere due to high ionospheric conductivity. The strength of the seasonal variations suggests that the bulk of the energy deposition may be due to discrete auroral events.</jats:p> Seasonal variation of auroral electron precipitation Geophysical Research Letters |
| spellingShingle | Barth, C. A., Baker, D. N., Bailey, S. M., Geophysical Research Letters, Seasonal variation of auroral electron precipitation, General Earth and Planetary Sciences, Geophysics |
| title | Seasonal variation of auroral electron precipitation |
| title_full | Seasonal variation of auroral electron precipitation |
| title_fullStr | Seasonal variation of auroral electron precipitation |
| title_full_unstemmed | Seasonal variation of auroral electron precipitation |
| title_short | Seasonal variation of auroral electron precipitation |
| title_sort | seasonal variation of auroral electron precipitation |
| title_unstemmed | Seasonal variation of auroral electron precipitation |
| topic | General Earth and Planetary Sciences, Geophysics |
| url | http://dx.doi.org/10.1029/2003gl018892 |