Lake Kegonsa Hydrologic Nowcast Modeling

Lake Kegonsa Water Budget Schematic and Equation
Lake Kegonsa Schematic

ΔS = VInflow + VDoor + VLocal + VP ± VGround − VOut − VEv

Variables and definitions (units in model are acre-feet):

  • ΔS = Change in Lake Storage Volume
  • VInflow = Yahara River Inflow Volume (from Lake Waubesa)
  • VDoor = Door Creek Inflow Volume
  • VLocal = Local Inflow Volume
  • VP = Direct Atmospheric Precipitation Volume on Lake Surface
  • VGround = Net Groundwater and Unmeasured Lateral Flux Volume
  • VOut = Yahara River Outflow Volume (to Stoughton Dam)
  • VEv = Aerodynamic Mass-Transfer Evaporative Loss Volume
Inflow - Yahara River from Lake Waubesa

Lake Kegonsa Inflow

Inflow - Door Creek

Door Creek Flow

Inflow - Local Drainage

Local Drainage

Outflow - Lake Evaporation

Lake Evaporation

Outflow - Yahara River to Stoughton Dam

Lake Kegonsa Outflow

Lake Kegonsa Water Level

Lake Kegonsa Water Level

Hydrologic Model Validation

Lake Kegonsa Model Validation