For more info on XBeach please refer to https://public.deltares.nl/display/XBEACH/Home
XBeach names
XBeach name | standard_name | variable name |
(m) x-coord. comp. grid (positive shoreward, perp. to coastline) |
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(m) y-coord. comp. grid |
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(m) x-coord. comp. grid (positive shoreward, perp. to coastline) |
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(m) y-coord. comp. grid |
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(m) x-coord. in u points |
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(m) y-coord. in v points |
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(m) world x-coordinates | projection_x_coordinate (CF) | |
(m) world y-coordinates | projection_y_coordinate (CF) | |
(m) grid size x-direction |
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(m) grid size y-direction |
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(m) x-origin of grid in world coordinates |
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(m) y-origin of grid in world coordinates |
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(rad) (deg on input) angle of grid w.r.t. East |
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depths defined positive downwards (1) or upwards(-1) | (attribute in depth variable CF) | |
(rad) minimum angle of computational wave grid (carth. in rad) |
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(rad) minimum angle of computational wave grid (carth. in rad) |
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local number of grid cells x-direction |
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local number of grid cells y-direction |
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(m) bed level |
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(m) initial bed level | sea_surface_height_above_geoid (CF) (at t=0) | |
(rad) wave angles directional distribution w.r.t. comp. x-axis | sea_surface_wave_to_direction | |
number of wave direction bins |
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(rad) wave direction bin size |
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(rad) mean incident wave angle |
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cos(theta) |
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sin(theta) |
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(rad) mean wave angle |
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(N/m2) wave force x-direction |
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(N/m2) wave force y-direction |
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(N/m) radiation stress |
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(N/m) radiation stress |
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(N/m) radiation stress |
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ratio group velocity/wave celerity |
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(m) wave height |
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(m/s) group velocity x-direction |
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(m/s) group velocity y-direction |
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(m/s) wave celerity x-direction |
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(m/s) wave celerity y-direction |
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(rad/s) wave celerity theta-direction (refraction) |
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(J/m2/rad) directionally distributed wave energy |
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(rad) wave angles |
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cos of wave angles |
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sin of wave angles |
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(rad/s) relative frequency |
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(J/m2/rad) directionally distributed roller energy |
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(rad/m) wave number |
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(m/s) wave celerity |
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(m/s) group velocity |
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(rad/s) mean frequency |
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(rad/s) mean abs frequency |
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(m) water depth | sea_floor_depth_below_sea_level | |
(m) water level | sea_surface_height_above_geoid (CF) | |
(m) water level due to tide alone |
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(s) input time of input tidal signal |
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(m) input tidal signal |
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(s) input time of input wind signal |
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(m/s) input wind velocity |
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(deg nautical) input wind direction |
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(m/s) uniform wind velocity current time |
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(m/s) uniform wind direction current time |
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(m/s) rate of change water level |
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(m/s) water surface gradient in x-direction |
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(m/s) water surface gradient in y-direction |
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bed level gradient in x-direction |
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bed level gradient in y-direction |
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(m/s) rate of change bed level |
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(m/s) (GLM) x-velocity in u-points |
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(m/s) (GLM) y-velocity in v-points |
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(m2/s) x-discharge in u-points |
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(m2/s) y-discharge in u-points |
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(m) cum. sedimentation/erosion |
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(kg/m3/m) bed concentration gradient x-dir. |
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(kg/m3/m) bed concentration gradient y-dir. |
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(kg/m3/m) suspended concentration gradient x-dir. |
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(kg/m3/m) suspended concentration gradient y-dir. |
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(m/s) incident bound wave velocity |
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(Nm/m2) wave energy |
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(Nm/m2) roller energy |
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(m/s) orbital velocity |
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(W/m2) dissipation |
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fraction breaking waves |
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(m/s) Stokes drift |
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(rad) mean wave direction |
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(m/s) Eulerian mean velocity x-dir. |
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(m/s) Eulerian mean velocity y-dir. |
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(m/s) (GLM) velocity magnitude u-points |
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(m/s) (GLM) velocity magnitude u-points |
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(m/s) (GLM) velocity magnitude v-points |
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(m/s) (GLM) velocity magnitude v-points |
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(m/s) (GLM) x-velocity cell centre (for output) |
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(m/s) (GLM) y-velocity cell centre (for output) |
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(m/s) Eulerian mean x-velocity cell centre (for output) |
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(m/s) Eulerian mean y-velocity cell centre (for output) |
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(m) water depth previous time step |
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mask wet/dry u-points |
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mask wet/dry v-points |
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mask wet/dry eta-points |
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(m) water depth in u-points |
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(m) water depth in v-points |
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(m) water depth in u-points |
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(m) water depth in v-points |
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(m/s) velocity magnitude in cell centre |
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(m3/m3) depth-averaged concentration for each sediment fraction |
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(m/s) x-comp. Stokes drift |
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(m/s) y-comp. Stokes drift |
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(m/s) return flow due to roller |
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(m/s) return flow due to roller after breaker delay |
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(m) incoming bound long wave |
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(W/m2) roller energy dissipation |
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(m/s) longterm mean velocity at bnds in x-direction |
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(m/s) longterm mean velocity at bnds in y-direction |
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0 = uniform grid size, 1 = variable grid size |
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(m/s) y velocity in u points |
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(m/s) x velocity in v points |
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(m) D50 grain diameters for all sediment classses |
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(m) D90 grain diameters for all sediment classses |
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equilibrium sediment concentartion factor for each sediment class |
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calibration factor for u critical for each sediment class |
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(s) sediment response time for each sediment class |
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(m2/s) suspended sediment transport x-dir. for each sediment class (excluding pores) |
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(m2/s) suspended sediment transport y-dir. for each sediment class (excluding pores) |
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(m2/s) bed sediment transport x-dir. for each sediment class (excluding pores) |
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(m2/s) bed sediment transport y-dir. for each sediment class (excluding pores) |
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(m3/m3) depth-averaged bed equilibrium concentration for each sediment class |
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(m3/m3) depth-averaged suspended equilibrium concentration for each sediment class |
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(m/s) time averaged flow velocity due to wave assymetry |
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maximum wave surface slope used in roller dissipation formulation |
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(m^2/s^2) near bed turbulence intensity due to depth induces breaking |
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(s) wave period interval associated with breaking induced turbulence |
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(m) total bed level change due to avalanching |
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(m) maximum elevation in simulation |
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(m) minimum elevation in simulation for subroutine dispersion |
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skewness of short waves |
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asymmetry of short waves |
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(m) groundwater head (differs from gwlevel) |
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(m) groundwater table (min(zb,gwhead)) |
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(m) vertical size of aquifer through which groundwater can flow |
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(m) level of the bottom of the aquifer |
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(m/s) groundwater flow in x-direction |
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(m/s) groundwater flow in y-direction |
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(m/s) groundwater flow in z-direction (interaction between surface and ground water) |
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(m) Infiltration layer depth used in quasi-vertical flow model for groundwater |
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(m) boundary condition back boundary for groundwater head |
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(m^2/s^2) depth averaged turbulence intensity due to long wave breaking |
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(m/s) bed erosion rate per fraction |
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(m/s) implicit bed deposition rate per fraction |
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(m/s) explicit bed deposition rate per fraction |
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number of bed layers (can be difefrent for each computational cell) |
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(m/s) u-velocity (time-averaged) for wci |
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(m) long wave roller thickness |
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(m/s) v-velocity (time-averaged) for wci |
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(m) waterlevel (time-averaged) for wci |
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(m^2/s^2) normalized dynamic pressure |
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(m/s) vertical velocity at the bottom |
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(m/s) vertical velocity at the free surface |
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(N/m^2) x-component of bed shear stress |
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(N/m^2) y-component of bed shear stress |
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(W/m^2) dissipation rate due to bed friction |
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(m2/s) Sediment transport integrated over bed load and suspended and for all sediment grains |
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(m2/s) Sediment transport integrated over bed load and suspended and for all sediment grains |
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(m3/m3) Sediment concentration integrated over bed load and suspended and for all sediment grains |
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(m/s) ! Vertical velocity at boundary due to (short) waves2 |
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(m) ! Surface elevation at boundary due to (short) waves |
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(m2/s) horizontal viscosity coefficient |
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