Numerical simulation of saltwater intrusion in response to sea-level rise
By: C.D. Langevin and A.M. Dausman
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Abstract
A two dimensional numerical model of variable-density groundwater flow and dispersive solute transport was used to predict the extent, rate, and lag time of saltwater intrusion in response to various sea-level rise scenarios. Three simulations were performed with varying rates of sea-level rise. For the first simulation, sea-level rise was specified at a rate of 0.9 mm/yr, which is the slowest rate of sea-level rise estimated by the Intergovernmental Panel on Climate Change (IPCC). After 100 years, the 250 mg/L chloride isochlor moved inland by about 40 m, and required an additional 8 years for the system to reach equilibrium. For the next simulation, sea-level rise was specified at 4.8 mm/yr, which is the central value of the IPCC estimate. For this moderate rate of sea-level rise, the 250 mg/L isochlor moved inland by about 740 m after 100 years, and required an additional 10 years for the system to reach equilibrium. For the fastest rate of sea level rise estimated by IPCC (8.8 mm/yr), the 250 mg/L isochlor moved inland by about 1800 m after 100 years, and required more than 50 years to reach equilibrium. Copyright ASCE 2005.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Numerical simulation of saltwater intrusion in response to sea-level rise |
| ISBN | 0784407924; 9780784407929 |
| DOI | 10.1061/40792(173)376 |
| Year Published | 2005 |
| Language | English |
| Larger Work Title | World Water Congress 2005: Impacts of Global Climate Change - Proceedings of the 2005 World Water and Environmental Resources Congress |
| First page | 376 |
| Conference Title | 2005 World Water and Environmental Resources Congress |
| Conference Location | Anchorage, AK |
| Conference Date | 15 May 2005 through 19 May 2005 |
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