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fwcutoff # ? relevant for all
hwci # only relevant for wci=1, default is wci=0
jetfac # only relevant for swrunup=1, default is swrunup=0
dtbc # ? relevant for all
sigfac # only relevant for kmax>1, default is kmax=1
gamma2 # ? relevant for break=roelvink1 or break=roelvink2, default is break=roelvink2
lwt # ? relevant for turbulence computation, which is the default
waveform # only possible when turb!=bore_averaged, default is turb=bore_averaged
facsd # only relevant for shoaldelay=1, default is shoaldelay=0
z0 # only relevant for form=soulsby_vanrijn, default is form=vanthiel_vanrijn
betad # only relevant for lwt=1, default is lwt=0
correctHm0 # ? relevant for all
BRfac # only relevant for rfb=1, default is rfb=0
bed # only relevant for bulk=0, default is bulk=1
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Proposed short list
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delta # Fraction of wave height to add to water depth
BRfac # Calibration factor surface slope
C # Chezy coefficient
CFL # Maximum Courant-Friedrichs-Lewy number
Tbfac # Calibration factor for bore interval Tbore: Tbore = Tbfac*Tbore
Tsmin # Minimum adaptation time scale in advection diffusion equation sediment
alpha # Wave dissipation coefficient in Roelvink formulation
bed # Calibration factor for bed transports [0..1]
beta # Breaker slope coefficient in roller model
betad # Dissipation parameter long wave breaking turbulence
break # Type of breaker formulation (1=roelvink, 2=baldock, 3=roelvink adapted, 4=roelvink on/off breaking)
breakerdelay # Turn on (1) or off (0) breaker delay model
bulk # Option to compute bedload and suspended load seperately; 0 = seperately, 1 = bulk (as in previous versions)
cats # Current averaging time scale for wci, in terms of mean wave periods
cf # Friction coefficient flow
cmax # Maximum allowed sediment concentration
correctHm0 # Turn off or on Hm0 correction
delta # Fraction of wave height to add to water depth
dispc # Coefficient in front of the vertical pressure gradient, Default = 1.
dryslp # Critical avalanching slope above water (dz/dx and dz/dy)
dtbc # Timestep used to describe time series of wave energy and long wave flux at offshore boundary (not affected by morfac)
dwetlayer # Thickness of the top soil layer interacting more freely with the surface water
dzmax # Maximum bedlevel change due to avalanching
eps # Threshold water depth above which cells are considered wet
eps_sd # Threshold velocity difference to determine conservation of energy head vs momentum
epsi # Ratio of mean current to time varying current through offshore boundary
facAs # Calibration factor time averaged flows due to wave asymmetry
facDc # Option to control sediment diffusion coefficient [0..1]
facSk # Calibration factor time averaged flows due to wave skewness
facsd # fraction of the local wave length to use for shoaling delay depth
facsl # Factor bedslope effect
facua # Calibration factor time averaged flows due to wave skewness and asymmetry
fcutoff # Low-freq cutoff frequency for instat = 4,5,6 boundary conditions
form # Equilibrium sed. conc. formulation: 1 = Soulsby van Rijn, 1997, 2 = Van Rijn 2008 with modifications by Van Thiel
fw # Bed friction factor
fwcutoff # Depth greater than which the bed friction factor is NOT applied
gamma # Breaker parameter in Baldock or Roelvink formulation
gamma2 # End of breaking parameter in break = 4 formulation
gammax # Maximum ratio wave height to water depth
hmin # Threshold water depth above which Stokes drift is included
hswitch # Water depth at which is switched from wetslp to dryslp
hwci # Minimum depth until which wave-current interaction is used
jetfac # Option to mimic turbulence production near revetments [0..1]
kdmin # Minimum value of kd ( pi/dx > minkd )
lws # 1 = long wave stirring, 0 = no long wave stirring
lwt # Switch 0/1 long wave turbulence
n # Power in Roelvink dissipation model
nc # Smoothing distance (defined as nr of cells) for estimating umean
nmax # maximum ratio of cg/c fro computing long wave boundary conditions
nuh # Horizontal background viscosity
nuhfac # Viscosity switch for roller induced turbulent horizontal viscosity
nuhv # Longshore viscosity enhancement factor, following Svendsen (?)
order # Switch for order of wave steering, 1 = first order wave steering (short wave energy only), 2 = second oder wave steering (bound long wave corresponding to short wave forcing is added)
por # Porosity
reformsteep # Wave steepness criterium to reform after breaking
rfb # If rfb = 1 then maximum wave surface slope is feeded back in roller energy balance; else rfb = par%Beta
roller # Turn on (1) or off(0) roller model
rugdepth # Minimum depth for determination of last wet point in runup gauge
scheme # Use first-order upwind (upwind_1), second order upwind (upwind_2) or Lax-Wendroff (lax_wendroff)
secbrsteep # Secondary maximum wave steepness criterium
secorder # Use second order corrections to advection/non-linear terms based on MacCormack scheme
sedcal # Sediment transport calibration coefficient per grain type
setbathyfile # Name of prescribed bed update file
shoaldelay # Turn on (1) or off (0) shoaling delay
sigfac # dsig scales with log(sigfac). Default = 1.3
smag # Switch for smagorinsky subgrid model for viscocity
smax # Being tested: maximum Shields parameter for ceq Diane Foster
snells # Turn on (1) or off (0) Snell's law for wave refraction
solver_acc # accuracy with respect to the right-hand side used
solver_urelax # Underrelaxation parameter
sourcesink # In suspended transport use source-sink terms to calculate bed level change (1) or sus transport gradients (0)
sprdthr # Threshold ratio to maxval of S above which spec dens are read in (default 0.08*maxval)
sus # Calibration factor for suspensions transports [0..1]
sws # 1 = short wave & roller stirring and undertow, 0 = no short wave & roller stirring and undertow
trepfac # Compute mean wave period over energy band: par%trepfac*maxval(Sf) for instat 4,5,6; converges to Tm01 for trepfac = 0.0 and
tsfac # Coefficient determining Ts = tsfac * h/ws in sediment source term
turb # Switch to include short wave turbulence:
turbadv # Switch 0/1 to activate turbulence advection model for short and or long wave turbulence
ucrcal # Critical velocity calibration coefficient per grain type
umin # Threshold velocity for upwind velocity detection and for vmag2 in eq. sediment concentration
waveform # Option for waveshape model: 1 = Ruessink & Van Rijn, 2 = Van Thiel de Vries, 2009
wci # Turns on (1) or off (0) wave-current interaction
wetslp # Critical avalanching slope under water (dz/dx and dz/dy)
z0 # Zero flow velocity level in Soulsby van Rijn (1997) sed.conc. expression
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Expert panel
- Dano Roelvink
- Ad Reniers
- Jaap van Thiel de Vries
- Robert McCall
- Ap van Dongeren
- Gerben Ruessink
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Attached to this e-mail you will find a list of the 80+ relevant XBeach parameters. We would like you to assign 25 points to the parameters that should, according to you, be considered in the systematic variation. Optionally, you may indicate a value range for each parameter. We will divide about 10.000 XBeach simulations over the parameters that received the most points. The number of parameters is not set beforehand. We will consider including more parameters (dimensions) over including more variations per parameter (resolution).
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Best regards,
Bas Hoonhout
Pieter van Geerhttp://publicwiki.deltares.nl/display/XBEACH/Default+settings
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Short list
Variation matrix
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