کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4553327 1328892 2011 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Water-level oscillations in the Adriatic Sea as coherent self-oscillations inferred by independent component analysis
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی
پیش نمایش صفحه اول مقاله
Water-level oscillations in the Adriatic Sea as coherent self-oscillations inferred by independent component analysis
چکیده انگلیسی

We analyze tide gauge records at four stations of the ISPRA network located in the Adriatic Sea basin (Eastern Italy), namely, going from North to South: Trieste, Ancona, Ortona and Otranto. We use linear and nonlinear methods in the frequency and time domains, including spectral and Independent Component Analysis (ICA), inter-times occurrence, and phase space embedding dimension evaluation. We show that four tidal constituents can be extracted by ICA and interpreted as coherent self-sustained oscillations. Finally, we show that these constituents can be reproduced by adopting a simple nonlinear oscillatory model that generalizes classical Andronov oscillator with the inclusion of a time dependent pumping.


► We examine water level oscillations in the Adriatic Sea as coherent self-sustained oscillations.
► We demonstrate that a few main tidal constituents are involved in the dynamics.
► We introduce a forecast tidal modeling based on the nonlinear Andronov oscillator.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Oceanography - Volume 91, Issue 4, December 2011, Pages 447–460
نویسندگان
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