Simulation of integrated surface-water/ground-water flow and salinity for a coastal wetland and adjacent estuary
Journal of Hydrology
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Abstract
The SWIFT2D surface-water flow and transport code, which solves the St Venant equations in two dimensions, was coupled with the SEAWAT variable-density ground-water code to represent hydrologic processes in coastal wetlands and adjacent estuaries. A sequentially coupled time-lagged approach was implemented, based on a variable-density form of Darcy's Law, to couple the surface and subsurface systems. The integrated code also represents the advective transport of salt mass between the surface and subsurface. The integrated code was applied to the southern Everglades of Florida to quantify flow and salinity patterns and to evaluate effects of hydrologic processes. Model results confirm several important observations about the coastal wetland: (1) the coastal embankment separating the wetland from the estuary is overtopped only during tropical storms, (2) leakage between the surface and subsurface is locally important in the wetland, but submarine ground-water discharge does not contribute large quantities of freshwater to the estuary, and (3) coastal wetland salinities increase to near seawater values during the dry season, and the wetland flushes each year with the onset of the wet season. ?? 2005 Elsevier B.V. All rights reserved.
Suggested Citation
Langevin, C., Swain, E., Wolfert, M., 2005, Simulation of integrated surface-water/ground-water flow and salinity for a coastal wetland and adjacent estuary: Journal of Hydrology, v. 314, no. 1-4, p. 212-234, https://doi.org/10.1016/j.jhydrol.2005.04.015.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Simulation of integrated surface-water/ground-water flow and salinity for a coastal wetland and adjacent estuary |
| Series title | Journal of Hydrology |
| DOI | 10.1016/j.jhydrol.2005.04.015 |
| Volume | 314 |
| Issue | 1-4 |
| Year Published | 2005 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Hydrology |
| First page | 212 |
| Last page | 234 |