English Joseph F. Poland (hydrologist) Cited by user Citation bot on 05 Apr 2023 Joseph Fairfield Poland (1908–1991) was the founding expert in the hydrogeologic field of land subsidence.
English Central Valley land subsidence Cited by user Sir Jacob III on 13 May 2022 The Central Valley in California subsides when groundwater is pumped faster than underground aquifers can be recharged.