莺歌海海域漂移物漂移特征分析  

Characteristics of the drift trajectory in the Yingge sea area

作　　者：张娟[1] 杨阳[2] 周水华[1] 俞胜宾[1] 冯伟忠[1] 冯砚青[2] 

机构地区：[1]国家海洋局南海预报中心,广东广州510300 [2]国家海洋局南海工程勘察中心,广东广州510300

出　　处：《海洋预报》2013年第3期73-77,共5页Marine Forecasts

基　　金：海洋公益型行业科研专项经费项目(200905015-03)

摘　　要：表面海流和海面风在海上漂浮物漂移运动中起着至关重要的作用,但遗憾的是风和表面流在漂移运动的贡献系数并没有得到一致认可,因此本文以2011年南海部际联合海上搜救演习内部演习为例,根据海表面海流、海面风等海洋要素的实测资料,综合对漂移物的漂移特征进行分析,并对风、表面流的作用进行初步探讨。分析结果表明:风对不同类型漂移物的影响有着较大的差异,根据风和表面流与实际轨迹的拟合关系来看,人体模型和救生筏的风压漂移系数分别为0.01和0.07,而表面流在漂移物的漂移贡献系数均为1.0。Current and the sea surface wind play an important role in the drift trajectory. In this paper, based on the measured datas of the search and rescue exercise in the south China sea in 2011, the effects coefficient of wind and surface flow is analyzed. The trajectories of drift in the sea showed that under the heavy wind speed, more effects by the wind than that by the flow. It＇s also showed that different drifts show different trajectories. The analysis results show that the effects of the wind on the different drift things have great difference. Accord- ing to the fitting relation of the wind and the surface flow between the actual track of the human body model and the liferaft, the wind pressure drift coefficient of the model of the human body and the liferaft is 0.01 and 0.07 re- spectively. The effects of surface flow on different drift things are same, and the coefficients of the surface flow in the different drift trajectory were 1.0.

关 键 词：搜救演习 风压漂移系数 人体模型 救生筏 

分 类 号：U676.6[交通运输工程—船舶及航道工程]