Equations and Problem Steps

Question 1

Water Balance or Hydrologic Budget Equation

Answer 1

dS_T = P - E ± R ± U

dS_T = change in total storage

P = Precipitation

E = Evapotransproation

R = runoff (stream inflow - stream outflow)

U = Underflow (groundwater inflow - groundwater outflow)

Question 2

Groundwater Inventory Equation

Question 3

Total Potential

Answer 3

= force of gravity + soil matric potential

Answer 4

q = (K p h)/f