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Flood maps

Karen edited this page Nov 3, 2023 · 23 revisions

Generates detailed flood maps based on single-phase simulation results from FLO-2D output files, providing a comprehensive view of potential flood scenarios. The next sections will describe in detail the flood maps that can be generated by MapCrafter.

Site Characteristics


Ground elevation:

$\qquad$ TOPO.DAT - Grid element, x- and y-coordinates, and their elevations (ft or m).

Basic


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

$\qquad$ VELFP.OUT: Maximum floodplain flow velocity (ft/s or m/s).

$\qquad$ VELDIREC.OUT: Flow maximum velocity direction (flow directions 1 - 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

$\qquad$ FINALVEL.OUT: Flow velocity at the end of the simulation (ft/s or m/s).

$\qquad$ FINALDIR.OUT: Flow final velocity direction at the end of the simulation (flow directions 1 - 8).

Derived


Depth x Velocity

$\qquad$ VEL_X_DEPTH.OUT: Maximum of velocity times depth for each floodplain element (ft^2/s or m^2/s).

Time


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


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).

Structures


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


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).