Eastcoast 2001, A Tidal Constituent Database for Western North Atlantic, Gulf of Mexico, and Caribbean Sea
Eastcoast 2001, A Tidal Constituent Database for Western North Atlantic, Gulf of Mexico, and Caribbean Sea
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Eastcoast 2001，北大西洋西部、墨西哥湾和加勒比海潮汐成分数据库
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
D. Mark
中科院分区：
文献类型：
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作者：
A. Y. Mukai;J. Westerink;R. Luettich;D. Mark
摘要：本报告介绍了东海岸2001年数据库的计算潮汐高程和速度成分在西北大西洋潮汐（WNAT）域的发展。WNAT域包括西北大西洋、墨西哥湾和加勒比海。计算是基于一个战略设计的有限元网格和沿海水动力环流模型，ADCIRC。由此产生的Eastcoast 2001数据库定义了O 1、K1、Q1、M2、S2、N2和K2潮汐分量的计算高程和速度振幅和相位。2001年东海岸数据库比以前的1995年东海岸数据库和1991年东海岸数据库准确得多，这是因为有以下改进：（a）采用新的网格生成技术，节点的位置和分布更好;（B）节点总数大得多;（c）海岸边界更准确;（d）包括更可靠的测深数据库。新的网格生成技术是两个先验网格标准的组合：（a）波长网格尺寸比和（B）地形长度尺度标准。这种组合最佳且更准确地将网格节点放置在需要高分辨率的区域中。误差分析的计算与测量高程振幅和相位在101个站除了全球和本地量化的可靠性水平的测量数据误差的评估。
Abstract : This report describes the development of the Eastcoast 2001 database of computed tidal elevation and velocity constituents within the Western North Atlantic Tidal (WNAT) domain. The WNAT domain encompasses the Western North Atlantic Ocean, Gulf of Mexico, and Caribbean Sea. The computations are based on a strategically designed finite element grid and the coastal hydrodynamic circulation model, ADCIRC. The resulting Eastcoast 2001 database defines the computed elevation and velocity amplitude and phase for the O1, K1, Q1, M2, S2, N2, and K2 tidal constituents. The Eastcoast 2001 database is significantly more accurate than the previous Eastcoast 1995 and Eastcoast 1991 databases based on the following feature improvements: (a) a new grid generation technique with better node placement and distribution, (b) a significantly greater number of total nodes, (c) a more accurate coastal boundary, and (d) inclusion of more reliable bathymetric databases. The new grid generation technique is the combination of two a priori mesh criteria: (a) The wavelength to grid size ratio and (b) the topographic length scale criteria. This combination optimally and more accurately places grid nodes in areas where high resolution is needed. Error analysis of computed versus measured elevation amplitude and phase at 101 stations in addition to an assessment of measured data errors globally and locally quantifies The level of reliability of the computed constituents.