کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8907883 1635295 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On rotational normal modes of the Earth: Resonance, excitation, convolution, deconvolution and all that
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
On rotational normal modes of the Earth: Resonance, excitation, convolution, deconvolution and all that
چکیده انگلیسی
Earth's Coriolis force profoundly alters the eigen frequencies, eigen functions, and excitation of rotational normal modes. Some rotational modes of the solid mantle-fluid outer core-solid inner core Earth system are confirmed observationally and some remain elusive. Here we bring together from literature assertions about an excited resonance system in terms of the Green's function and temporal convolution. We raise caveats against taking the face values of the oscillational motion which have been “masqueraded” by the convolution, necessitating deconvolution for retrieving the excitation function which reflects the true variability. Lastly we exemplify successful applications of the deconvolution in estimating resonance complex frequencies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geodesy and Geodynamics - Volume 8, Issue 6, November 2017, Pages 371-376
نویسندگان
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