SqueeSAR™ measures subsidence occurring over areas of groundwater extraction.

SqueeSAR™ is used to measure ground subsidence (due to extraction) and uplift (due to recharge) over wide areas to millimeter accuracy. Surface deformation data collected over long time periods can be used to determine effective extraction policies and identify potential hazards.

Subsidence and Uplift Monitoring
SqueeSAR™ measures ground response to water extraction and aquifer recharge. Ground displacement maps are used for both the identification of heavily pumped areas and for the characterization of aquifer recharge cycles, permeability and limiting boundaries.

Effective Extraction Policies
Ground deformation data can be used as input to water table models to assist in determining appropriate groundwater management policies. Maximum pumping limits can also be ascertained for the prevention of further subsidence and avoidance of future water shortages.

Over Extraction and Illegal Pumping
The over-extraction of groundwater changes the effective stress within an aquifer, accelerating subsurface consolidation, which could lead to irreversible surface deformation. Deformation maps are capable of identifying long-term seasonal patterns and highlighting areas of subsidence suffering from over-extraction.

SqueeSAR™ can also identify areas of accelerated subsidence, highlighting areas that may be subject to non-authorized pumping.