drainage basin

• open,local hydrological systems

  • boundary of drainage basin is the water shed
  • have inputs and outputs
• precipitation- main input 


  frontal precip= warm air meets cool air, forced above and cools as it rises

  orographic= when warm air meets mountains and is forced to rise

  convectional precip= sun heats up ground and moisture on ground evaporates and rises up in a column of water and cools
• flows in a drainage basin

  • interception
  • infiltration
  • direct run off
  • saturated over land flow
  • throughflow
  • percolation
• outputs of drainage basin

  • evaporation
  • transpiration
  • evapotranspiration
  • channel flow