File:Land subsidence is a critical driver of coastal hazards – Comparing InSAR-derived and IPCC-derived VLM and estimated exposure 2050.webp

English:

• vertical land motion (VLM)
• sea-level rise (SLR)

"Differences between estimated exposure using InSAR-derived VLM and IPCC-derived VLM for 2050 exposed area (a), exposed population (b) and exposed properties (c). InSAR-derived exposure is estimated using InSAR VLM and IPCC geocentric SLR as detailed in Methods, whereas the IPCC-derived exposure is estimated using the IPCC relative SLR dataset30. The central value represents the estimated median value from equation (3), whereas the error bars represent the lower and upper bounds from equation (3). Negative values indicate cities in which IPCC-derived VLM exposure is overestimated, whereas positive values indicate areas in which exposure is underestimated. d, Comparison of InSAR versus IPCC VLM rates for the 32 cities. The InSAR VLM rates are obtained by averaging the VLM for each city used in the exposure analysis, whereas the IPCC VLM rates are derived from tide-gauge stations. The error ranges for the InSAR and IPCC VLM show ±1 standard deviation. A summary of the comparison of exposure and VLM rates is detailed in Supplementary Tables 8–11."