Land subsidence is a phenomenon wherein the Earth’s surface sinks downwards. It occurs mainly due to human activities, such as excessive groundwater extraction. It is a major global concern, affecting 19% of the world’s population. In Japan, some parts of the Tokyo metropolitan region are already sinking. This process can accelerate the flooding of coastal areas and cause damage to buildings and infrastructure. Therefore, monitoring land subsidence is crucial.
Click here for original story, Investigating land subsidence in Japan through consecutive DInSAR and the law of material conservation
Source: Phys.org