Sediment Maps
Generates detailed sediment maps based on single-phase simulation results from FLO-2D output files.
Site Characteristics
Static layers describing the physical and geometric properties of the model domain. These maps provide the topographic framework controlling hydraulic and sediment transport processes.
Ground elevation
\(\qquad\) TOPO.DAT - Grid element, x- and y-coordinates, and
their elevations (ft or m).
Basic
Primary hydraulic outputs that influence sediment movement. These layers describe flow conditions governing erosion, transport, and deposition.
Maximum Depth
\(\qquad\) DEPTH.OUT - Maximum combined channel/floodplain flow
depths (ft or m).
Maximum Velocity
\(\qquad\) VELFP.OUT - Maximum floodplain flow velocity (ft/s or
m/s).
Maximum Velocity Vectors
VELFP.OUT - Maximum floodplain flow velocity (ft/s
or m/s).VELDIREC.OUT - Flow maximum velocity direction
(flow directions 1 to 8).Maximum WSE
\(\qquad\) MAXWSELEV.OUT - Maximum water surface elevation of
either the floodplain or channel (ft or m).
Final Depth
\(\qquad\) FINALDEP.OUT - Final floodplain flow depths (ft or
m). Channel not included.
Final Velocity
\(\qquad\) FINALVEL.OUT - Flow velocity at the end of the
simulation (ft/s or m/s). Channel not included.
Final Velocity Vectors
FINALVEL.OUT - Flow velocity at the end of the
simulation (ft/s or m/s).FINALDIR.OUT - Flow final velocity direction at the
end of the simulation (flow directions 1 to 8).Derived
Secondary metrics computed from hydraulic results. These layers combine depth and velocity to represent flow intensity relevant to sediment mobilization.
Depth x Velocity
\(\qquad\) VEL_X_DEPTH.OUT - Maximum of velocity times depth for
each floodplain element (ft²/s or m²/s).
Time
Time based indicators showing when critical hydraulic conditions occur. These maps help relate sediment response to flood onset and peak flow conditions.
Time to 1 ft (0.3 m)
\(\qquad\) TIMEONEFT.OUT - The initial time to one foot of depth
(hrs).
Time to 2 ft (0.6 m)
\(\qquad\) TIMETWOFT.OUT - The initial time to two feet of depth
(hrs).
Time to Max
\(\qquad\) TIMETOPEAK.OUT - The time of occurrence of the
maximum depth (hrs).
Channel
Hydraulic conditions within channel elements. These maps support evaluation of channel conveyance and its influence on sediment transport and bed adjustment.
Maximum Channel Depth
\(\qquad\) DEPCH.OUT - Maximum channel flow depths (ft or m).
Maximum Channel Velocity
\(\qquad\) VELOC.OUT - Maximum channel flow velocity (ft/s or
m/s).
Final Channel Depth
\(\qquad\) DEPCHFINAL.OUT - Final channel flow depths (ft or m).
Final Channel Velocity
\(\qquad\) VELCHFINAL.OUT - Final channel flow velocities (ft/s
or m/s).
Sediment
Direct sediment transport and bed change results. These layers describe erosion, deposition, and net bed elevation change during the simulation.
Maximum Deposition
\(\qquad\) SEDFP.OUT - Maximum deposition (ft or m).
Maximum Scour
\(\qquad\) SEDFP.OUT - Maximum scour (ft or m).
Final Bed Difference
\(\qquad\) SEDFP.OUT - Final bed elevation difference (ft or m).
Structures
Outputs describing the interaction between sediment laden flows and engineered structures. These maps support assessment of structural performance under sediment loading.
Levee Deficit
\(\qquad\) LEVEEDEFIC.OUT - Levee freeboard deficit.
Definition:
0, freeboard > 3 ft
1, 2 ft < freeboard < 3 ft
2, 1 ft < freeboard < 2 ft
3, freeboard < 1 ft
4, levee overtopped
Hydraulic
Advanced hydraulic force and energy metrics. These layers quantify pressures and forces acting on structures under sediment influenced flow conditions.
Specific Energy
\(\qquad\) SPECENERGY.OUT - Maximum specific energy for a
floodplain grid element (ft or m).
Static Pressure
\(\qquad\) STATICPRESS.OUT - Spatially variable static force per
linear foot for each floodplain element (lbf/ft or N/m).
Impact Force
\(\qquad\) IMPACT.OUT - Impact force per linear foot of
structure on the floodplain (lbf/ft or N/m).