Space geodetic determination of spatial variability in relative sea level change, Los Angeles basin.
Rapid land subsidence in Tianjin, China derived from continuous GPS observations (2010–2019). Vertical land motion as a key to understanding sea level change and variability. Glacial isostatic adjustment, intraplate strain, and relative sea level changes in the eastern United States. The contribution of glacial isostatic adjustment to projections of sea‐level change along the Atlantic and Gulf coasts of North America. Transient rheology of the Sumatran mantle wedge revealed by a decade of great earthquakes. Viscoelastic relaxation in a heterogeneous Earth following the 2004 Sumatra–Andaman earthquake. A global ranking of port cities with high exposure to climate extremes. Sea-level Rise and Storm Surges: A Comparative Analysis of Impacts in Developing Countries World Bank Policy Research Working Paper (World Bank, 2009). Effective sea-level rise and deltas: causes of change and human dimension implications. Measuring, modelling and projecting coastal land subsidence. Advances in delta-subsidence research using satellite methods. InSAR time-series analysis of land subsidence in Bangkok, Thailand. High nonlinear urban ground motion in Manila (Philippines) from 1993 to 2010 observed by DInSAR: implications for sea-level measurement. Sinking cities in Indonesia: ALOS PALSAR detects rapid subsidence due to groundwater and gas extraction. Press, 2021).Ĭhaussard, E., Amelung, F., Abidin, H. IPPC Climate Change 2021: The Physical Science Basis (eds Masson-Delmotte, V. These will better inform sustainable urban planning and future adaptation strategies in coastal cities. With our standardized method, the identification of relative vulnerabilities to RLLS and comparisons of RSLR effects accounting for RLLS are now possible across cities worldwide. RLLS is also more variable across the 48 cities (−16.2 to 1.1 mm per year) than the Intergovernmental Panel on Climate Change estimations of vertical land motion (−5.2 to 4.9 mm per year). We show that cities experiencing the fastest RLLS are concentrated in Asia. Here we provide self-consistent, high spatial resolution relative local land subsidence (RLLS) velocities derived from Interferometric Synthetic Aperture Radar for the 48 largest coastal cities, which represent 20% of the global urban population. However, the comparative severity of local land subsidence is unknown due to high spatial variabilities and difficulties reconciling observations across localities. Coastal land can be lost at rapid rates due to relative sea-level rise (RSLR) resulting from local land subsidence.
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