In 2016 and 2017 new satellites were launched for data collection, with a 6-day interval that gives more detailed data and a more consistent data series. One of the tasks within the INXCES project is to study the links between ground subsidence (movement) and flow of water in the ground. Case studies are the cities Bucharest in Romania and Bergen in Norway.
Bucharest have challenges concerning constructed waterways, canals, and leaking sewage that influence the groundwater and the ground conditions. In Bergen there is the historical site Bryggen, which is built on cultural layers that need to be soaked in groundwater in order to prevent decay. Limited or prevented recharge from surface water to groundwater is believed to be the main reason for the tilting and decay of the Bryggen wharf. Remediation is installed at Bryggen and the ground is stabilising. The challenge is to see if there is a pattern between water flow and ground movement.
The study is being carried out by Alina Radutu from the Romanian Space agency and Technical University of Bucharest (UTCB) and John Dehls from the Geological Survey of Norway (NGU).