Status of seawater intrusion in Mexico: A review

Journal of Hydrology Regional Studies, Journal Year: 2025, Volume and Issue: 57, P. 102189 - 102189

Published: Jan. 15, 2025

Language: Английский

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Empirical Models of Shallow Groundwater and Multi‐Hazard Flood Forecasts as Sea‐Levels Rise

Earth s Future, Journal Year: 2025, Volume and Issue: 13(2)

Published: Feb. 1, 2025

Abstract Knowledge of coastal hydrogeology and hazards as groundwater responds to sea‐level rise (SLR) can be improved through installation shallow monitoring piezometers continuous observations. Interpolation site data enables mapping the present‐day state elevation, depth (DTW), their temporal statistical variation, differing spatial responses tides rainfall. Future DTW its variability projected under increments SLR, with assumptions caveats, show where when episodic and/or permanent inundation expected. This methodology is outlined in a case study Dunedin, New Zealand, which enabled comparison rising groundwater's contribution pluvial flooding emergence inundation. Changes relative land exposure SLR shows evolution flood hazard from current pluvial‐dominated events, into “flooding below” emergence, advance any overland Dunedin exemplifies how transfers effects surprisingly far inland, but lowest‐lying or shoreline‐proximal suburbs are not necessarily most vulnerable. Unlike inundation, unconstrained by protective topography presents creeping hazard, contributor such flooding, widespread, occurring already difficult defend against. The empirical models contain uncertainties important veracity results application. While conservative (“risk averse”) compromise computationally expensive numerical solutions, value providing precision needed for multi‐source assessment holistic adaptive planning.

Language: Английский

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Transience of Coastal Water Table Rise in Response to Sea‐Level Rise

Ground Water, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Abstract Coastal shallow groundwater is susceptible to adverse sea‐level rise (SLR) impacts. Existing research primarily focuses on SLR‐induced salinization of coastal aquifers. There limited understanding the magnitudes and rates water table in response SLR, which could lead flooding associated infrastructure challenges. This study used a variable‐density flow model quantify transient movement various SLR scenarios rates, considering range aquifer parameters for both fixed‐head fixed‐flux inland boundary conditions. The scenario based realistic progressive projections resulted smaller than instantaneous or gradual at 100 years, despite final identical SLR. Rates were always less decreased with distance from coastline, proportional magnitude rate largest It also took longer equilibrate after commencement conditions As such, represent greater hazard rise, maximum impact may not be experienced decades. delayed poses challenges planners managers systems. Introducing drain reduced more side side. Subsurface limit impacts, but further effects need carefully considered.

Language: Английский

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Practitioner perspectives on sea-level rise impacts on shallow groundwater: Implications for infrastructure asset management and climate adaptation

Urban Climate, Journal Year: 2024, Volume and Issue: 58, P. 102195 - 102195

Published: Nov. 1, 2024

Language: Английский

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