摘要
研究了基于线性海浪模型制作三维动画海浪预报产品的制作方法,并制作了首个三维动画海浪警报产品。基本步骤为:由线性海浪模型生成一系列不同波高和波长的二维海面高度场,以及这些波面高度场对应的反光系数场;根据海浪预报图中波高的空间分布情况将不同波高的波面高度场拼接成复合的波面高度场,同时拼接出与之对应的复合反光系数场;由复合的波面高度场和反光系数场渲染出三维波面,并将渲染后的波面时间序列串接成动画形成最终产品。三维动画形式的海浪预报产品能有效地克服海浪有效波高等值线图信息不直观的缺点,预报信息易于被广大用户和公众理解。
A method of preparing an animation of 3-D wave forecasting is explored.A series of wave surface elevation fields with different mean wave height and wave length are generated on the basis of linear wave model,and also the corresponding reflective fields are generated.A composite wave surface elevation field and the corresponding reflective coefficient field are generated according to the significant wave height contour map.The frames of 3-D wave field are rendered based on these composite wave surface elevation fields.A series of rendered frames are animated at last.The 3-D animation of wave forecasting is much easier to understand for the public.
出处
《海洋通报》
CAS
CSCD
北大核心
2011年第2期172-178,共7页
Marine Science Bulletin
基金
十一五国家科技支撑计划:重大海洋灾害预警及应急技术研究(2006BAC0300)
关键词
海浪预报
FFT
海浪渲染
Sea Wave Forecasting
FFT
Sea Wave Render
