遥感(RS)、地理信息系统(GIS)和全球定位系统(GPS)这三门技术,经过几十年各自独立的发展,现已逐步走向综合。RS、GIS和GPS的综合简称为3S集成。其显著的持点:在于数据获取、数据处理和信息提取与应用具有很大优势和发展潜力,可为水利科学研究与工程应用提供新的思路和手段。1.在水文水资源方面应用①与水文模型有机结合,将水文模型作为应用模型纳入系统模型库,为模型数据管理、数据更新和信息输出提供服务,并以空间分析为模型参数的提取与估计提供新的手段;②水资源开发规划和运行管理,应用 Remote sensing (RS), geographic information system (GIS) and global positioning system (GPS) these three technologies, after decades of independent development, has now gradually integrated. RS, GIS and GPS referred to as 3S integration. Its significant point: data acquisition, data processing and information extraction and application has great advantages and development potential, which can provide new ideas and methods for water conservancy science research and engineering application. 1. Application of Hydrology and Water Resources ①In combination of hydrological model and hydrological model as an application model into the system model base, it provides services for model data management, data updating and information output, and uses spatial analysis as model parameter extraction and estimation Provide new means; ② water resources development planning and operation management, application