کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6388323 1627794 2012 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two-way nesting in split-explicit ocean models: Algorithms, implementation and validation
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
پیش نمایش صفحه اول مقاله
Two-way nesting in split-explicit ocean models: Algorithms, implementation and validation
چکیده انگلیسی

A full two-way nesting approach for split-explicit, free surface ocean models is presented. It is novel in three main respects: the treatment of grid refinement at the fast mode (barotropic) level; the use of scale selective update schemes; the conservation of both volume and tracer contents via refluxing. An idealized application to vortex propagation on a β plane shows agreement between nested and high resolution solutions. A realistic application to the California Current System then confirm these results in a complex configuration. The selected algorithm is now part of ROMS_AGRIF. It is fully consistent with ROMS parallel capabilities on both shared and distributed memory architectures. The nesting implementation authorizes several nesting levels and several grids at any particular level. This operational capability, combined with the inner qualities of our two-way nesting algorithm and generally high-order accuracy of ROMS numerics, allow for realistic simulation of coastal and ocean dynamics at multiple, interacting scales.

► Algorithmic details: Scale selective update schemes, Conservation issues, Grid coupling at the barotropic level. ► Strong improvements of two-way nesting VS one-way nesting method. ► Accurate and stable long term integration in a realistic case.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Modelling - Volumes 49–50, June 2012, Pages 1-21
نویسندگان
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