Validated satellite data
Validated mining-induced settlement data
Ground surface settlement data over a wider area than could be achieved practically by conventional survey techniques were needed to monitor mining activity in the Douglas Park area of New South Wales, Australia.
Historical satellite data was used to perform an InSAR analysis and provide surface settlement data over a large area of longwall mining. The existing conventional survey data over a long period provided us with a valuable opportunity to validate the satellite method.
InSAR analysis undertaken on time series of satellite images of the area.
Settlements identified that coincided with mining operations.
Data on horizontal sections compared with conventional survey sections to validate the satellite method.