To research the environmental problems of estuaries and coastal seas, we must learn the tidal flow field in detail firstly.

所以在近海工程及环境问题的研究中，必须首先要对潮流场有一个详细的了解。

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Based on the analysis of wind field in the troposphere over the Northwest Pacific, the effects of the environmental flow-patterns on typhoon tracks have been examined.

本文着眼于西北太平洋对流层的风场，分析了西北太平洋环境流场对台风路径的影响。

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