کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1763557 | 1020011 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new topside profiler based on Alouette/ISIS topside sounding
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
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چکیده انگلیسی
A new empirical model of the topside ionospheric density was developed to describe the measured topside profile accurately. This profiler is a composite of two separate layers of different ion species in the topside ionosphere, the O+ layer and the light-ions (H+ and He+) layer. The light-ions layer is characterized by an α-Chapman function with a linearly increasing scale height with altitude. This new model appears to perform the best as compared to five other typical topside profilers in representing data from ISIS-1&2 and Alouette-1&2 observations. We also analyzed the magnetic latitude dependence, seasonal variation, and day-night difference of the characteristic parameters of the light-ions layer during the magnetic quiet (Kp < 4) and low solar activity (f107 < 120 solar flux unit, sfu) period within magnetic latitudes from â60° to 90°. The statistical results show the expected different behaviors of light-ions and O+ parameters. In addition, the portion of the light-ion components contributing to the topside-ionospheric total electron content (TTEC) was studied also. The results suggest that the light ions make a great contribution to the TTEC, especially in magnetic low- and middle-latitudes at night.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 56, Issue 10, 15 November 2015, Pages 2080-2090
Journal: Advances in Space Research - Volume 56, Issue 10, 15 November 2015, Pages 2080-2090
نویسندگان
Jie Zhu, Biqiang Zhao, Weixing Wan, Baiqi Ning, Shunrong Zhang,