کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10704088 | 1021823 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sporadic E at cusp latitudes
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فیزیک زمین (ژئو فیزیک)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Sporadic E at cusp latitudes Sporadic E at cusp latitudes](/preview/png/10704088.png)
چکیده انگلیسی
This is a study of the sporadic E (Es) that is observed over a 'cusp latitude' station, Cambridge Bay (77° CGM lat.). Es is extremely common in late evening hours at this location, reaching â¼80% occurrence rate in some months. The Es appears to form near the time when the convection reversal passes over the station. We explain our observations by a two-step formation mechanism involving horizontal convergence of ionization by the electric fields of the afternoon convection reversal, and then vertical convergence of this ionization by the electric fields in the polar cap. We show that several properties of the Es are consistent with this two-step mechanism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Atmospheric and Solar-Terrestrial Physics - Volume 67, Issue 15, October 2005, Pages 1419-1426
Journal: Journal of Atmospheric and Solar-Terrestrial Physics - Volume 67, Issue 15, October 2005, Pages 1419-1426
نویسندگان
John W. MacDougall, P.T. Jayachandran,