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Mohid River Network

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Revision as of 13:46, 11 February 2010 by Anatrancoso (talk | contribs) (Overview)
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Overview

Mohid River Network (MRN) is a standalone version of Mohid Land that computes flow and property transport only the Drainage Network. MRN capabilities are described in Trancoso, et al (2009)

Keywords

Keywords read in the Data File

Keyword                   : Data Type         Default     !Comment

NETWORK_FILE              : char              -           !Path to drainage network file
CHECK_NODES               : 0/1               [1]         !Ckeck nodes consistency
CHECK_REACHES             : 0/1               [1]         !Check reaches consistency

DISCHARGES                : 0/1               [0]         !Use module discharges (WWTP, etc)
HYDRODYNAMIC_APROX        : int               [1]         !1 - KinematicWave, 2 - DiffusionWave, 3 - DynamicWave
NUMERICAL_SCHEME          : int               [0]         !0 - ExplicitScheme, 1 - ImplicitScheme
If ImplicitScheme ------------------------------------------------------------
TIME_WEIGHT_FACTOR        : real              [0.7]       !Factor de ponderacao do peso dos termos explicitos e implicitos
RELAXATION_FACTOR

MASS_ERR                  : real(8)           [0.001]     !Max error in mass conservation
GLOBAL_MANNING            : real              -           !Rugosity in Channels
MIN_WATER_DEPTH           : real              [0.001]     !Min water depth in nodes (For h < MIN_WATER_DEPTH water stops flowing)
MIN_WATER_DEPTH_PROCESS   : real              [0.01]      !Water Quality Process / Surface Fluxes shutdown
INITIAL_WATER_DEPTH       : real              [0.0]       !Initial water depth
TRANSMISSION_LOSSES       : 0/1               [0]         !If user wants to use transmission losses
HYDRAULIC_CONDUCTIVITY    : real              -           !Hydraulic Conductivity to calculate transmission losses
REMOVE_OVERTOP            : 0/1               [0]         !Removes Water if channels are overtoped
MINIMUM_SLOPE             : real              [0.0]       !Minimum Slope for Kinematic Wave
STABILIZE                 : 0/1               [0]         !Restart time iteration if high volume gradients
STABILIZE_FACTOR          : real              [0.1]       !max gradient in time steps as fraction of old volume
MAX_ITERATIONS            : int               [100]       !Max iterations for stabilized check
DT_FACTOR                 : real              [0.8]       !Factor for DT Prediction
MAX_DT_FLOOD              : real              [10.0]      !Max DT if channel water level exceeds full bank 
AERATION_METHOD           : int               [-]         !1 - PoolAndRifle, 2 - ChannelControled_
T90_DECAY_MODEL           : 0                 [1]         !0 - Constant, 1 - Canteras, 2 - Chapra
T90                       : real              [7200.]     !if T90_DECAY_MODEL = Constant
SHADING_FACTOR            : real              [1.]        !0-1 fraction of riparian shading
FRACTION_SEDIMENT         : 0/1               [0]
GLOBAL_TOXICITY           : char              ['SUM']     !Global Toxicity Computation Method : SUM,MAX,RISKRATIO
GEO_CONVERSATION_FACTOR   : real              [1.]        !Lat to Meters rough estimation
OUTPUT_TIME               : int int...        [-]
DOWNSTREAM_BOUNDARY       : int               [1]         !0 - Dam, 1 - ZDG, 2 - CD, 3 - ImposedWaterDepth, 3 - ImposedVelocity
  If ImposedWaterDepth--------------------------------------------------------
      FILE_IN_TIME        : char              [NONE]      !NONE, TIMESERIE
      DEFAULTVALUE        : real              -           !Default value for water depth at downstream boundary
      If FILE_IN_TIME = TIMESERIE---------------------------------------------
          FILENAME        : char              -           !Name of timeserie file for the downstream boundary
          DATA_COLUMN     : int               -           !Number of column with data

TIME_SERIE_LOCATION       : char              -           !Path to time serie especification nodes
MAX_BUFFER_SIZE           : 1000
COMPUTE_RESIDUAL          : 1 
DT_OUTPUT_TIME            : 1200
TIME_SERIE_BY_NODES       : 0/1               [0]         !Keyword to see if the user wants the time series to be written by nodes, i.e.,
                                                           !One file per node, with all variables in the headers list
                                                           !if FALSE, its one file per variable with nodes in the headers.
<BeginNodeTimeSerie>  / <EndNodeTimeSerie>


<beginproperty>
  NAME                    : cohesive sediment 
  UNITS                   : mg/L 
  DESCRIPTION             : cohesive sediment
  INITIAL_VALUE           : 100.00
  MIN_VALUE               : 0.0
  ADVECTION_DIFUSION      : 1
      ADVECTION_SCHEME    : 1       !Upwind
      DIFFUSION_SCHEME    : 5       !CentralDif
      DIFFUSIVITY         : 1E-8    !m2/s
      VIRTUAL_COEF        : 0.01
  WATER_QUALITY           : 0
  BENTHOS                 : 0
  Decay                   : 0       !uses T90 decay model for fecal coliforms
                                      [2] -                                   
  TIME_SERIE              : 1
<endproperty>


Network file ##################################################################

<BeginNode>
  ID                      : int               -           !Node ID number
  COORDINATES             : real real         -           !Node coordinates
  GRID_I                  : int               -           !I position of node, if grid
  GRID_J                  : int               -           !J position of node, if grid
  TERRAIN_LEVEL            : real              -           !Bottom level of cross section
  MANNING_CHANNEL         : real         GLOBAL_MANNING   !Node rugosity
  WATER_DEPTH             : real      INITIAL_WATER_DEPTH !Node initial water depth
  CROSS_SECTION_TYPE      : int               [1]         !1 - Trapezoidal, 2 - TrapezoidalFlood, 3 - Tabular
  1 - Trapezoidal, 2 - TrapezoidalFlood
      BOTTOM_WIDTH        : real              -           !Bottom width of cross section
      TOP_WIDTH           : real              -           !Top width of cross section
      HEIGHT              : real              -           !Max height of cross section
  2 - TrapezoidalFlood
      MIDDLE_WIDTH        : real              -           !Middle width of cross section
      MIDDLE_HEIGHT       : real              -           !Middle height of cross section
  3 - Tabular
      N_STATIONS          : integer           -           !number os stations that define the cross section
      STATION             : real real ...     -           !station values
      ELEVATION/LEVEL     : real real ...     -           !elevation values        
<EndNode>    
<BeginReach>
  ID                      : int               -           !Reach ID Number
  DOWNSTREAM_NODE         : int               -           !Downstream node ID
  UPSTREAM_NODE           : int               -           !Upstream node ID
<EndReach>

UserManual

How to create a MOHID River Project Step-by-Step