Movement of the saltwater interface in the surficial aquifer system in response to hydrologic stresses and water-management practices, Broward County, Florida

Dausman, Alyssa; Langevin, Christian D.

doi:10.3133/sir20045256

Cited by 55 publications

(27 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Each of them has been documented in the southern U.S., with the types and scopes of the impacts being partially determined by the geographic setting of the urban area. For example, along the southern US coastline, the HoustonGalveston metropolitan area has experienced land subsidence [62] while saltwater intrusion is occurring in Fort Lauderdale, FL [63], Tampa and Miami, FL, Savannah, GA, and Hilton Head Island, SC [64]. Changes to shallow groundwater and stream baseflow chemistry consistent with wastewater and fertilizer contamination have been observed in moderate relief areas like Austin [65] and Atlanta [66].…”

Section: Urbanization Effects On Baseflows and Groundwater Rechargementioning

confidence: 99%

Urbanization Effects on Watershed Hydrology and In-Stream Processes in the Southern United States

O’Driscoll

Clinton

Jefferson

et al. 2010

Water

342

219

View full text Add to dashboard Cite

Abstract:The southern United States is characterized by a humid, subtropical climate and consists of 16 states (Texas, Oklahoma, Arkansas, Louisiana, Mississippi, Tennessee, Kentucky, Alabama, Florida, Georgia, South Carolina, North Carolina, Virginia, West Virginia, Delaware, and Maryland) and Washington DC. Currently this region is experiencing the largest net population growth in the U.S. Over the last century, the expansion of large urban centers and impervious area in the region has altered the hydrologic cycle. This review synthesizes regional research that shows how watershed hydrology, groundwater recharge, stream geomorphology, climate, biogeochemistry, and stream ecology have been affected by urbanization and the expansion of watershed impervious area.

show abstract

Section: Urbanization Effects On Baseflows and Groundwater Rechargementioning

confidence: 99%

Urbanization Effects on Watershed Hydrology and In-Stream Processes in the Southern United States

O’Driscoll

Clinton

Jefferson

et al. 2010

Water

342

219

View full text Add to dashboard Cite

show abstract

“…However, sharp interface approximations can only be used in areas where the mixing zone can be ignored; while, in reality, mixing between freshwater and saltwater occurs in all coastal aquifers as a result of dispersion, changes in head, changes in hydraulic conductivity and tides [25]. In fact, the extent of mixing varies from a few tens of centimeters in tight clays or sandstone to several tens of meters in karstic limestone [26]. But mixing is always there, regardless of its extents.…”

Section: Comparison Between Analytic and Numerical Modeling Resultsmentioning

confidence: 99%

Groundwater Flow Modeling in Coastal Aquifers: The Influence of Submarine Groundwater Discharge on the Position of the Saltwater-Freshwater Interface

Shishaye¹

2016

J Coast Zone Manag

View full text Add to dashboard Cite

Journal of Coastal Zone Management AbstractAn investigation of the impact of submarine groundwater discharge on the position of saltwater-freshwater interface is presented in this manuscript. Two conceptualizations were considered and analyzed using both analytic and numerical techniques, for comparison purposes. The first conceptualization assumes that the tip of the saltwaterfreshwater interface occurs at the shoreline, and the second conceptualization allows for the tip to extend off-shore. Analytic solutions exist for both conceptualizations. Results from both analytic and numeric analysis for the two conceptualizations are presented. Results from the first conceptualization were found to overestimate the inland distance to the interface toe, compared to the second conceptualization, for it ignores the influence of submarine groundwater discharge on the interface location. Moreover, results from the analytic solutions as a whole were found to overestimate the interface location compared to the numerical modeling results, for analytic solutions are based on the sharp interface approximations. Therefore, an empirically derived dispersion factor should be used to correct the analytic solution results so as to compare them with the numerically simulated values. Furthermore, offshore model extents should be incorporated when modeling coastal aquifer systems to include the influence of submarine groundwater discharge on the saltwater-freshwater interface position.

show abstract

“…Low-lying suburban areas along the southeastern peninsula will also be at mean sea level elevation resulting in perennial tidal flooding with significantly reduced ability to discharge rain floodwaters by gravity from the urban areas into the sea. Below ground, saltwater intrusion can be expected to reduce aquifer productivity along coastal well fields [27].…”

Section: General Influence Of Sea Level Risementioning

confidence: 99%

South Florida’s Encroachment of the Sea and Environmental Transformation over the 21st Century

Park

Stabenau

Redwine

et al. 2017

JMSE

View full text Add to dashboard Cite

South Florida encompasses a dynamic confluence of urban and natural ecosystems strongly connected to ocean and freshwater hydrologic forcings. Low land elevation, flat topography and highly transmissive aquifers place both communities at the nexus of environmental and ecological transformation driven by rising sea level. Based on a local sea level rise projection, we examine regional inundation impacts and employ hydrographic records in Florida Bay and the southern Everglades to assess water level exceedance dynamics and landscape-relevant tipping points. Intrinsic mode functions of water levels across the coastal interface are used to gauge the relative influence and time-varying transformation potential of estuarine and freshwater marshes into a marine-dominated environment with the introduction of a Marsh-to-Ocean transformation index (MOI).

show abstract

Movement of the saltwater interface in the surficial aquifer system in response to hydrologic stresses and water-management practices, Broward County, Florida

Cited by 55 publications

References 37 publications

Urbanization Effects on Watershed Hydrology and In-Stream Processes in the Southern United States

Urbanization Effects on Watershed Hydrology and In-Stream Processes in the Southern United States

Groundwater Flow Modeling in Coastal Aquifers: The Influence of Submarine Groundwater Discharge on the Position of the Saltwater-Freshwater Interface

South Florida’s Encroachment of the Sea and Environmental Transformation over the 21st Century

Contact Info

Product

Resources

About