GEOGRAPHIC INFORMATION SYSTEM ON LANDSUBSIDENCE IN TIANJIN

摘要

The original was introduced the general structure of geographic information system on land subsidence in Tianjin, including the subsystem of DataBase, the subsystem of figure storehouse, the subsystem of prediction in the calculation and the subsystem of Early warming evaluation, and systematic meritorous service capacity and the operational environment. As example of the Tianjin urban district, Landsubsidence early warming rating means and distance travelled by a stream of water were introduced.