کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5765104 1626608 2017 37 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lagrangian trajectories, residual currents and rectification process in the Northern Gulf of California
ترجمه فارسی عنوان
مسیرهای لاگرانژ، جریانهای باقی مانده و روند اصلاح در خلیج شمالی کالیفرنیا
کلمات کلیدی
مدل سازی عددی، مسیرهای لاگرانژی، جزر و مد، جریانهای باقی مانده، رفع جریانات،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی
چکیده انگلیسی
Considering a semi-implicit approximation of the Coriolis terms, a numerical solution of the vertically integrated equations of motion is proposed. To test the two-dimensional numerical model, several experiments for the calculation of Euler, Stokes and Lagrange residual currents in the Gulf of California were carried out. To estimate the Lagrangian residual current, trajectories of particles were also simulated. The applied tidal constituents were M2, S2, K2, N2, K1, P1 and O1. At spring tides, strong tidal velocities occur in the northern half of the gulf. In this region of complex geometry, depths change from a few meter in the northern shelf zone to more than 3000 m in the southern part. In the archipelago region, the presence of islands alters amplitude and direction of tidal currents producing a rectification process which is reflected in a clockwise circulation around Tiburón Island in the Lagrangian residual current. The rectification process is explained by the superposition of the Euler and Stokes residual currents. Residual current patterns show several cyclonic and anticyclonic gyres in the Northern Gulf of California. Numerical experiments for individual and combinations of several tidal constituents revealed a large variability of Lagrangian trajectories.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Estuarine, Coastal and Shelf Science - Volume 194, 15 July 2017, Pages 263-275
نویسندگان
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