Software Support Tools for Designing the Maritime Systems by Using Image Information Data From GMS

本文研究了利用静止气象卫星(GMS)传输的图像信息数据来构建海事系统设计的支持系统。支持系统由三个基本软件工具组成。工具“1”介绍了用于GMS气象信息数据图像分析的数字技术。工具“2”包括一种根据气象数据的天气图预报风速系统的简单方法，以及一种利用基于SMB方法的威尔逊方法预报风浪的实用方法。工具3介绍了一种利用沃尔什变换算法对随机波进行数字仿真的技术。该技术可应用于数值随机模拟中的绘制方法。针对不同的海洋环境(风、风浪等)，首先利用现有的支持系统…对北太平洋冬季的海况进行了一系列的数值计算更多。在此基础上，提出了一种基于Lewis和Paulling理论的高速船舶随浪、分浪临界状态判别方法，并给出了相应的软件工具。利用GMS传输的图像信息数据进行海况测定。对北太平洋某海况下的一艘长线渔船、一艘拖网渔船、一艘集装箱船和一艘100米高速船，在冬日进行了一系列数值计算。结果表明，这些船舶通常会遇到四分波的聚集，特别是高速船在横浪附近会遇到四分波的临界情况。结果表明，该方法对于逐小时划分海浪的临界航向是有效的。较少

This study deals with a construction of the support system for designing maritime systems by using image information data-transmitted from the Geostationary Meteorological-Satellite (GMS). The support system consists of three basic software tools. The tool "1" presents digital techniques for the image analysis of meteorological information data from GMS. The tool "2" is composed of a simple approach to forecasting wind velocity system based upon a weather chart referring to meteorological data and of a utility of forecasting wind waves by using Wilson's approach based upon the SMB method. The tool "3" presents a digital simulation technique of random waves by using Walsh Transform algorithm. The technique can be applied to a rendering method in numerical random simulations. for a variety of marine environment (wind, wind waves etc.).Firstly, a series of numerical computations are executed for a sea state in the North Pacific Ocean within a winter day by using the present support system … More . It is confirmed that the support software tools is effective in simulations of wind and wind waves in an area of sea within an optional day, and that those tools reduced hugely the computer execution time requirement.Then, a discriminating method of critical conditions of a high speed ship in following and quartering sea waves, is proposed based upon Lewison and Paulling theory and the software tools for. the Sea State Determinations by using image information data transmitted from GMS. A series of numerical computation are executed for a long-liner, a trawler, a container ship and a 100 meters high speed ship for a sea state in the North Pacific Ocean within a winter day. It is shown that those ships usually encounter a congregation of quartering waves and the high speed ship particularly encounters critical conditions in quartering waves near beam seas. It is confirmed that the method is useful for discriminating the critical ship's course in quartering ocean waves from hour to hour. Less