Tides and Inflows in the Mangroves of the Everglades (TIME)
The area comprised of the drainage basins of Taylor Slough and canal C-111 in the southern Everglades and nearshore embayments of Florida Bay is referred to as the Southern Inland and Coastal System (SICS) (shown as red square in figure at right). A major goal of the Comprehensive Everglades Restoration Plan (www.evergladesplan.org) is to improve the quality, quantity, timing, and distribution of flows within the SICS area. Restoration and water-management decision makers are relying heavily on scientists for insight into hydrologic processes and hydrodynamic forces that govern flow and transport through this endangered ecosystem. A two-dimensional, depth-averaged, hydrodynamic surface-water model that also accounts for constituent transport has been developed to simulate time-varying water levels, flow velocities, and salinites within the SICS ecosystem.
A 148 by 98 (E-W by N-S) rectangular grid of 1000-ft square cells was used to cover the model domain. Physical properties describing the ecosystem, e.g., land-surface elevations, vegetation types, flow-resistance coefficients, wind-sheltering parameters, and factors defining hydrologic processes, e.g., evapotranspiration rates, ground-water fluxes, rainfall, were assigned to each cell. Freshwater inflows at the Taylor Slough and C-111 canal boundaries are used in conjunction with water levels and salinities specified at the Florida Bay boundary to conduct flow simulations at a 15-minute time step.
The following 5 and 6-month computer animation sequences of daily water depths were derived from a continuous simulation of flows for August 1996 to June 1998. Different shades of blue indicate changing water depths, scaled in feet, and gray identifies dry areas. The alternate transitioning of the wetlands between wet and dry seasons is clearly demonstrated by the animation sequences. Water depths and hydroperiods simulated by the model are providing useful insight into the ecosystem behavior for evaluating restoration actions and management decisions, as well as for conducting ecological investigations.
sics0896-1296.avi 8/1/96 to 12/31/96 (4666 kb, file last modified in 2001)
The following files containing the complete 22-month-long animation sequence is in Windows Media format and can be viewed with Windows Media Player. Please note you may have to download the file first, then open it from within Windows Media Player.
sics0896-0698.wmv 8/1/96 to 6/9/98 (4425 kb, file last modified in 2001)
The following links are the same files compressed for quicker download.
sics0896-1296.zip - AVI format 8/1/96 to 12/31/96 (3174 kb, file last modified in 2001)