Construction Of Digital Linhai Basic Geographic Information Database

Digital City is an important means of City Informatization and is an important foundation for the harmonious development of the city.Digital City is the core of the city geospatial framework construction, while the basic geographic information database is the foundation of digital city construction.Construction of basic geographic information database can give full play to the role of basic geographic information data,so that the data can be used by different application systems which come from different departments andindustries.It can make various types of data obtained sharing, and eliminate information island effective.This paper takes the construction of Linhai digital city as an example.It describes and researchs the key link of building basic geographic information database.It uses all kinds of advanced techniques and methods to solve the problems where encountered in the process of basic geographic information database construction.Thispaper mianly discusses the necessity of buinding basic geographic information database in consrtucting Linhai digital city,researches the process and methods of constructing basic geographic information data and discusses the principle of the project of basic geographic information database.And on the basis of the above,the paper carries on the data processing,data editing, data warehousing, and data quality contral of basic geographic information data according to the actual application of the project.It lays a certain theoretical and practical foundation for the establishment of "digital city".