Land Subsidence Monitoring Network Optimization at Tanggu in Tianjin

A method combining spatial cluster with data statistical analysis was employed to optimize a land subsidence monitoring network consisted of 86 monitoring points at Tanggu in Tianjin.So the optimized network met with the goal of both maximizing spatial accuracy and minimizing temporal redundancy.Giving the number of monitoring points,an optimized network containing a selection of about 25% monitoring points from the original network was built.