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首页> 外文期刊>Arabian Journal for Science and Engineering >Simulations of Seasonal Current Circulations and Its Variabilities Forced by Runoff from Freshwater in the Gulf of Thailand
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Simulations of Seasonal Current Circulations and Its Variabilities Forced by Runoff from Freshwater in the Gulf of Thailand

机译：泰国湾淡水径流迫使季节性电流环流及其变化的模拟

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摘要

This paper presents the seasonal climatology of currents and elevations in the Gulf of Thailand (GoT) derived from a numerical three-dimensional ocean model. A numerical three-dimensional ocean model, based on the Princeton Ocean Model (POM), with rectangular coordinates in horizontal and vertical sigma coordinates was implemented for the GoT, situated between 6° to 14°N latitude and 99° to 105°E longitude. The Gulf is a relatively shallow body of water with a maximum depth of 83 m and an average depth of 45 m. It was driven at the surface by monthly mean sea surface temperature, salinity and wind stress climatology. In this paper, the simulations of current circulations and sea surface elevations for each season are presented, where the winter, summer, rainy season, and end of the rainy season in Thailand are represented by the months January, May, July, and October, respectively. The simulations in the upper GoT are also described. The results show clockwise circulations during summer and rainy seasons of Thailand. They occur in the central GoT. Two experiments were designed to investigate the effects of freshwater runoff. The freshwater runoff is shown to be the important factor for generating current circulation in the upper GoT at the end of the rainy seasons. The current speed is weakened when the runoff is removed. The sea surface elevations also decrease when the freshwater runoff is removed, especially in October, where it is reduced by about 50 %.
机译：本文介绍了从三维三维海洋模型得出的泰国湾（GoT）洋流和高程的季节性气候。为GoT实现了基于普林斯顿海洋模型（POM）的三维三维海洋模型，该模型的水平和垂直sigma坐标均为直角坐标，位于北纬6°至14°，东经99°至105°之间。 。海湾是一个相对较浅的水域，最大深度为83 m，平均深度为45 m。它是由月平均海表温度，盐度和风应力气候学驱动的。本文介绍了每个季节的当前环流和海平面高程的模拟，其中泰国的冬季，夏季，雨季和雨季结束用一月，五月，七月和十月表示，分别。还描述了上部GoT中的仿真。结果显示泰国夏季和雨季的顺时针环流。它们发生在中央GoT中。设计了两个实验来研究淡水径流的影响。在雨季结束时，淡水径流被证明是在上部GoT中产生电流循环的重要因素。径流消除后，当前速度减弱。去除淡水径流后，海面海拔也降低，尤其是在十月份，其减少了约50％。

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