Geology 127 (Hydrogeology)

California State University, Sacramento


Week 4: Properties of Aquifers, porosity, specific yield, Darcy's Law; hydraulic conductivity, intrinsic permeability





Upon completion of this unit students should be able to:

  • Distinguish between porosity, effective porosity and specific yield.

  • Define specific yield and specific retention.

  • Describe Henri Darcy's apparatus and the derivation of Darcy's Law.

  • Analyze the variables that affect flow in a Darcy tube.

  • Examine the effects of changing density, temperature and dynamic viscosity on fluid flow through a porous medium.

  • Discuss the difference between hydraulic conductivity and intrinsic permeability.

  • Convert hydraulic conductivity values to intrinsic permeability.


Reading Assignments:


Lecture 6: Fetter, 4th ed., pp. 66-90


Class notes:


Lecture 6


New Homework Assignment:

Fetter: TBA

Due date: TBA

Homework key