数据库建设水务综合数据库分为基础数据和专业数据两部分。基础数据积累了自1998年以来每3年更新的1:500、1:2000数字地形图,1999年以来每1-2年更新的高分辨率的卫星遥感和航空遥感影像。专业数据包括:河道、水闸、市区防汛墙、沿海海塘、市政泵站、排涝泵站、排水管线、防汛物资分布、市区暴雨积水资料等。 Database construction Water comprehensive database is divided into basic data and professional data in two parts. The basic data has accumulated 1: 500 and 1: 2000 digital topographic maps updated every three years since 1998 and high resolution satellite remote sensing and aerial remote sensing images updated every 1-2 years since 1999. Professional data include: river, sluice, urban flood control wall, coastal seawall, municipal pumping station, drainage pump station, drainage lines, flood control materials distribution, urban storm water information.