کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1764879 | 1020075 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
First observation of upper mesospheric semi annual oscillations using ground based airglow measurements from Indian low latitudes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
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![عکس صفحه اول مقاله: First observation of upper mesospheric semi annual oscillations using ground based airglow measurements from Indian low latitudes First observation of upper mesospheric semi annual oscillations using ground based airglow measurements from Indian low latitudes](/preview/png/1764879.png)
چکیده انگلیسی
We summarize two years of Mesosphere Lower Thermosphere Photometer (MLTP) operation of mesospheric OH and O2 emission monitoring. The deduced mesospheric OH and O2 temperatures show large variability. Nightly temperature variations over Gadanki (13.5°N, 79.2°E) are dominated by the short period wave features, while tidal amplitudes are relatively small. Our measurements are the first to report a long period seasonal variation at two upper mesospheric altitudes simultaneously over the Indian sector. Our observations reveal the presence of a dominant semi-annual oscillation (∼6 months periodicity) together with a shorter period (∼2.5 months periodicity) oscillation in both OH and O2 data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 49, Issue 5, 1 March 2012, Pages 937–942
Journal: Advances in Space Research - Volume 49, Issue 5, 1 March 2012, Pages 937–942
نویسندگان
A. Taori, V. Kamalakar, A. Jayaraman,