长江中游航道流速区划分及影响因素研究

Division method and influential factors of waterway flow velocity area in the middle Yangtze River

为满足长江电子航道图系统功能需要,使长江电子航道图流速相关信息的显示更加符合实际航段的情况,基于声学多普勒流速剖面仪(ADCP)的测流数据,提出了基于船舶航行需求的主、缓流流速区划分方法。同时利用该方法,研究影响流速区划分的因素,对研究河段进行科学分段。

To meet the functional requirements of the Yangtze River electronic waterway chart and improve its display reality for relevant information about flow velocity, we propose a division method for the main and suberitical flow velocity area based on the requirement of ship navigation. The flow velocity is measured by the Acoustic Doppler Current Profilers （ADCP）. Moreover, the influential factors for dividing the velocity area are studied, and the segmenting of river is realized by the method proposed.