WP1.2 Subsidence disentanglement deep

Through inverse-modelling at regional scale, work package 1.2 (supervised by dr. Fokker; TNO Geological Survey of the Netherlands) will combine existing deep geological mapping, reservoir characterization, tectonic analysis and up to date numbers on groundwater, salt and hydrocarbon extractions (all independently from SAR data) and create data products needed to disentangle these contributions to subsidence from InSAR data. The deep subsurface natural and anthropogenic subsidence components will be spatio-temporally quantified, and for the anthropogenic parts the workflow will be such that these estimates can be regularly actualized. In WP1 and NWA-LOSS overall, quantifying the WP1.2 components of subsidence serves to correct the total signal of subsidence that is monitored through InSAR techniques, similar as WP1.3 aims to do for glaciohydro-isostatic adjustment. The remaining signal after correction is the part that is shallow soft-soil subsidence, which is sensitive to climate (warm dry summers oxidize and consolidate organic top soils stronger than mild years) and human management (water levels in ditches and so on), which WP1.1 is after and which is key input to WP2 and WP3 tasks of measuring and modelling soft-soil subsidence.