#------------------------------------------------------------------------------- # # Mesh009.in: Test of Child mesh synthesis from xyz file # Sky Coyote, February 2008 # # --- Inlet and 'no' rainfall --- # See notes in climate and inlet sections below # #------------------------------------------------------------------------------- #------------------------------------------------------------------------------- # Run control parameters # # The following parameters control the name and duration of the run along # with a couple of other general settings. #------------------------------------------------------------------------------- OptInitMeshAndExit: Initialize and write mesh files and then exit 0 OUTFILENAME: Base name of output files Mesh009/Mesh009 RUNTIME: Duration of run (years) 1000 OPINTRVL: Output interval (years) 100 #------------------------------------------------------------------------------- # Mesh setup parameters # # These parameters control the initial configuration of the mesh. Here you # specify whether a new or existing mesh is to be used; the geometry and # resolution of a new mesh (if applicable); the boundary settings; etc. # # Notes: # # OPTREADINPUT - controls the source of the initial mesh setup: # 0 = create a new mesh in a rectangular domain # 1 = read in an existing triangulation (eg, earlier run) # 2 = create a new mesh by triangulating a given set # of (x,y,z,b) points # INPUTDATAFILE - use this only if you want to read in an existing # triangulation, either from an earlier run or from # a dataset. # INPUTTIME - if reading in a mesh from an earlier run, this specifies # the time slice number #------------------------------------------------------------------------------- OPTREADINPUT: reads data from inputdatafile if = 1 2 POINTFILENAME: xyz text file Mesh009/xyz009.txt INPUTTIME: which time to read from inputdatafile 0 OPTINITMESHDENS 0 #------------------------------------------------------------------------------- # Climate parameters #------------------------------------------------------------------------------- OPTVAR: Option for rainfall variation 0 SEED: Random seed 021508 ST_PMEAN: Mean rainfall intensity (m/yr) (16.4 m/yr = Atlanta, GA)(instantaneous) 1.0e-12 # must have rainfall for an inlet to produce water ST_STDUR: Mean storm duration (yr) 1.0 ST_ISTDUR: Mean time between storms (yr) 0.0 CRITICAL_FLOW: minimum flow for which we calc. meandering (m3/yr) 1.0e-6 # also used to plot discharge of mesh #------------------------------------------------------------------------------- # Inlet parameters #------------------------------------------------------------------------------- OPTINLET: 1 = add an "inlet" discharge boundary condition (0=none) 1 INDRAREA: drainage area at an inlet (if greater than zero ) (m2) 1e18 # inlet discharge is drain area * rain rate INSEDLOAD: sediment load at inlet (m3/yr) 1000.0 INLET_X: x-coordinate of inlet (m) 484.974226119285 # at an existing node INLET_Y: y-coordinate of inlet (m) 960.0 # at an existing node #------------------------------------------------------------------------------- # Erosion and sediment transport parameters # (Note: choice of sediment-transport law is dictated at compile-time; # see tErosion.h) # # Important notes on parameters: # # (1) kb, kt, mb, nb and pb are defined as follows: # E = kb * ( tau - taucrit ) ^ pb, # tau = kt * q ^ mb * S ^ nb, # q = Q / W, W = Wb ( Q / Qb ) ^ ws, Wb = kw Qb ^ wb # where W is width, Q total discharge, Qb bankfull discharge, # Wb bankfull width. Note that kb, mb and nb are NOT the same as the # "familiar" K, m, and n as sometimes used in the literature. # # (2) For power-law sediment transport, parameters are defined as follows: # capacity (m3/yr) = kf * W * ( tau - taucrit ) ^ pf # tau = kt * q ^ mf * S ^ nf # q is as defined above # # (3) KT and TAUC are given in SI units -- that is, time units of seconds # rather than years. The unit conversion to erosion rate or capacity # is made within the code. #------------------------------------------------------------------------------- DETACHMENT_LAW: 1 KR: regolith erodibility coefficient (dimensions same as KB) 1e-5 KT: Shear stress (or stream power) coefficient (in SI units) 9800.0 KB: bedrock erodibility coefficient (dimensions in m, kg, yr) 1e-5 MB: bedrock erodibility discharge exponent 1.0 NB: bedrock erodibility slope exponent 1.0 PB: Exponent on excess erosion capacity (e.g., excess shear stress) 1.0 TRANSPORT_LAW: 2 KF: sediment transport efficiency factor (dimensions vary) 0 MF: sediment transport capacity discharge exponent 2 NF: sed transport capacity slope exponent (ND) 2 TAUCD: critical shear stress for detachment-limited-erosion (kg/m/s^2) 0 KD: diffusivity coef 0.01 OPTDIFFDEP: if = 1 then diffusion only erodes, never deposits 1 DIFFUSIONTHRESHOLD: contributing area above which diffusive flux out is set to zero 1e8 #------------------------------------------------------------------------------- # Bedrock and regolith #------------------------------------------------------------------------------- MAXREGDEPTH: maximum depth of a single regolith layer (also "active layer") 1000000.0 BEDROCKDEPTH: initial depth of bedrock (make this arbitrarily large) 1000000.0 REGINIT: initial regolith thickness 0.0 #------------------------------------------------------------------------------- # Tectonics / baselevel boundary conditions #------------------------------------------------------------------------------- UPTYPE: type of uplift (0=none, 1=uniform, 2=block, etc) 0 #------------------------------------------------------------------------------- # Grain size parameters # # (Note: for Wilcock sand-gravel transport formula, NUMGRNSIZE must be 2; # otherwise, NUMGRNSIZE must be 1. Grain diameter has no effect if the # Wilcock model is not used.) #------------------------------------------------------------------------------- NUMGRNSIZE: number of grain size classes 1 GRAINDIAM1: representative diameter of first grain size class [m] 0.0005 REGPROPORTION1: proportion of sediments of grain size diam1 in regolith [.] 1.0 BRPROPORTION1: proportion of sediments of grain size diam1 in bedrock [.] 1.0 #------------------------------------------------------------------------------- # Hydraulic geometry parameters # # Width is the most critical parameter as it is used in erosion and # transport capacity calculations. HYDR_WID_COEFF_DS is the "kw" parameter # referred to above (equal to bankfull width in m at unit bankfull discharge # in cms) # # CHAN_GEOM_MODEL options are: # 1 = empirical "regime" model: Wb = Kw Qb ^ wb, W / Wb = ( Q / Qb ) ^ ws # 2 = Parker width closure: tau / tauc = const #------------------------------------------------------------------------------- CHAN_GEOM_MODEL: option for channel width closure 1 HYDR_ROUGH_COEFF_DS: coeff. on downstrm hydraulic roughness reln. (manning n) 5e-2 BANKFULLEVENT: precipitation rate of a bankfull event, in m/year 31.6 HYDR_WID_EXP_STN: exp. on at-a-station hydraulic width relation 0.25 HYDR_ROUGH_EXP_DS: exp. on downstream hydraulic roughness -0.01 HYDR_ROUGH_EXP_STN: exp on at-a-station hydr. rough. -0.21 BANK_ROUGH_COEFF: coeff. on downstream bank roughness relation 3.0 BANK_ROUGH_EXP: exp on discharge for downstream bank roughness relation 0.50 HYDR_WID_COEFF_DS: coeff. on downstream hydraulic width relation (m/(m3/s)^exp) 3.0 HYDR_DEP_COEFF_DS: coeff. on downstream hydraulic depth relation (m/(m3/s)^exp) 0.3417 HYDR_WID_EXP_DS: exponent on downstream hydraulic width relation 0.5 HYDR_DEP_EXP_DS: exponent on downstream hydraulic depth relation 0.4 HYDR_DEP_EXP_STN: exp. on at-a-station hydraulic depth relation 0.4 #------------------------------------------------------------------------------- # Other various options #------------------------------------------------------------------------------- OPTFLOODPLAIN: option for overbank deposition using modified Howard 1992 model 0 OPTLOESSDEP: space-time uniform surface accumulation of sediment (loess) 0 OPTVEG: option for dynamic vegetation growth and erosion 0 OPTMESHADAPTAREA: dynamic adaptive meshing based on drainage area 0 OPTMESHADAPTDZ: dynamic adaptive meshing based on erosion rates 0 OPTINTERPLAYER: for node moving, do we care about tracking the layers? yes=1 0 OPTMEANDER: Option for meandering 0 OPTDETACHLIM: for detachment limited erosion = 1 1 FLOWGEN: flow generation, 1 = saturated flow 0 INFILTRATION: infiltration capacity (for Hortonian option) (m/yr) 0 OPTSINVARINFILT: option for sinusoidal variations in infiltration capacity 0 LAKEFILL: fill lakes if = 1 1 OPTTSOUTPUT: option for writing mean erosion rates, etc, at each time step 0 OPTSTRATGRID 0 OPTREADLAYER: option to read layer information from file (only if reading mesh) 0