Ecosystems Research Division

Formulas

OnSite includes formulas for calculating parameter values needed for models.

The formulas are divided into three categories, Site Data Preparation, Model Input Parameters, and Flow and Transport Phenomena.

• Formulas
• • Site Data Preparation
  • • Hydraulic Gradient
    • Hydraulic Gradient--Scaled from a Map
    • Three Point Hydraulic Gradient
    • Moisture Content
  • Model Input Parameters
  • • Retardation Factor
    • Henry's Law Coefficientsas a function of temperature.
    • Estimated Longitudinal Dispersivity
  • Flow and Transport Phenomena
  • • Darcy's Law
    • Seepage Velocity and Travel Time
    • Effective Solubilities from Fuels
    • Mass Distribution in Multiphase Systems