Runoff Module 4

Date: 2010/08/24
File Name: ... C:\WRSM2000\CALEDON\D21_A\D21RU4.DAT
 
Runoff Module number: 4
Runoff Module name: D21D
Catchment area: 252.00 kmē

The module uses the Pitman Groundwater Model.

Mean Annual Precipitation: 839 mm
Rainfile: ... C:\WRSM2000\CALEDON\D21_A\caled1_5_sec.prn

Calibration Parameters:
    Power of soil moisture/Subsurface flow eqn........(POW): 2.50
    Soil moisture state when subsurface flow = 0 ......(SL): 0.00
    Soil moisture capacity in mm.......................(ST): 120.00
    Subsurface flow at full soil moisture capacity.....(FT): 5.00
    Maximum groundwater flow in mm/month...............(GW): 1.00
    Min. catchment absorption rate in mm/month...... (ZMIN): 999.00
    Max. catchment absorption rate in mm/month.......(ZMAX): 999.00
    Interception storage in mm.........................(PI): 1.50
    Forest Factor (Van der Zel only)...................(FF): 1.00
    Lag of flow (excluding groundwater)................(TL): 0.40
    Lag of groundwater flow............................(GL): 0.50
    Coefficient in evaporation / soil moisture equation.(R): 0.50
 
Evaporation and pan factors.
    Oct  141      0.800      0.630
    Nov  152      1.000      0.790
    Dec  175      1.000      0.800
    Jan  165      1.000      0.800
    Feb  128      1.000      0.780
    Mar  111      1.000      0.760
    Apr   77      1.000      0.710
    May   60      1.000      0.660
    Jun   46      1.000      0.590
    Jul   53      0.800      0.510
    Aug   78      0.800      0.570
    Sep  113      0.800      0.610
 
The Runoff Module has no afforestation.
 
The Runoff Module has no alien vegetation areas.
 
The Runoff Module has no paved areas.

The Module has no inflow route.
 
The Runoff Module has 2 outflow routes:
    Route 68 carries 10.0 % of the total runoff.
    Route 14 carries 90.0 % of the total runoff.