Ocean model with adjustable arrangements of discrete variables: application to strong tidal flows and low salinity water
Ocean model with adjustable arrangements of discrete variables: application to strong tidal flows and low salinity water
复制标题
离散变量可调排列的海洋模型：在强潮汐流和低盐度水体中的应用
DOI：
10.1007/s00773-022-00920-7
复制
发表时间：
2023
影响因子：
2.6
通讯作者：
Hatano T.
中科院分区：
文献类型：
--
作者：
Nishi;Y.;Tabeta S.;Fujiwara Y.;Hatano T.
海洋环境风险评估需要对一系列与风险相关的现象进行模拟，并对暴露于风险中的生物进行测量。作为一种实用工具，模拟是建立数值海洋模式的基础上进行的。虽然海洋动力学的数值模型已经提出了几十年，但仍然有空间从根本上改进计算解决方案的方法。本文报道了该模型的一种新算法的发展。该算法将离散变量置于网格中，最大限度地发挥控制方程中每一项所采用数值格式的优势，简化程序结构。将所实施的程序应用于澳大利亚大陆东海岸欣钦布鲁克海峡的潮汐流和河流浮力羽流。计算结果较好地再现了观测到的强振荡流和低盐度水动力学。所提出的方法适用于淡水影响区域内污染物的运动。
The assessment of marine environmental risk necessitates the simulation of a series of phenomena related to the risk as well as a measurement of creatures exposed to the risk. As a practical tool, the simulation is based on the establishment of a numerical ocean model. Although several decades have passed since the numerical model for ocean dynamics has been presented, there remains room for fundamental approaches to refine the method for computing solutions. This paper is a report of the development of a novel algorithm of the model. In this algorithm, discrete variables are positioned in a grid to maximally elicit the advantages of a numerical scheme adopted to each term in the governing equations and simplify the program structure. The implemented program is applied to a tidal flow and riverine buoyant plume in the Hinchinbrook Channel in the eastern coast of the Australian Continent. The computation reproduces the observed strong oscillatory flows and low-salinity water dynamics well. The proposed method is applicable to the movements of pollutants in regions of freshwater influence.