将遥感技术和地理信息系统（GIS）技术相结合，建立了一个基于TOPEX卫星的全球海面风速分析的海洋地理信息系统（MGIS）。阐述了全球海面风速分析模型的建立方法，定义了描述风场特征的相关参数，介绍了全球海面风速海洋地理信息系统的结构、功能和工作流程，另外，对系统的3个应用实例进行了地学分析。

As the largest source of momentum for the ocean surface,wind affrcts the full range of oceanic motion and plays a very important part in air-sea interaction.It is recognized that remote sensing(RS)satellite has the capability of acquiring high quality marine winds with fine resolution in both space and time,Meanwhile,geographical information system(GIS)is becoming an unprecedented powerful tool for storing,processing,analyzing,and xisualizing geo-spatial data.Jointly using RS and GIS technologies,a marine GIS(MGIS)system based on satellite data is deceloped for the analysis of global sea surface wind speed.TOPEX altimeter data between January 1993 and December 1998 which cover the oveanic areas within ±65°are used as input.An analytical model of wind speed is proposed,on the basis of which seasonal,annual and interannual cariabilities(both intensity and timing)are dericed.The MGIS consists of five functional modules;A database construction module,a human-computer interface module,a wind speed data preparation and analysis module,a graphic and image production module and a typical illustration management module.The system also includes three data files of model coefficient,coastal line,and typical graphics and images,respecticely.A relational database structure is adopted by the system.As examples of the application of this MGIS,results of three thematuc cases are presrnted,namely,the global marine wind climatology,the Asian Monsoon,and the EL Nino related interannual wind cariability.These applications demonstrate the adcantages of jointly using RS and GIS in oceanographic studies.We will continue to improve this MGIS by expanding its functionality and incorporating other key geophysical parametes into the system.