It is well know that hydraulic conductivity field in real-world aquifers are strongly heterogeneous, exhibiting multiple scales of variations 

A. Use MAGNET to demonstrate small scale heterogeneity has large sale implications:  small scale heterogeneites translate into large scale anisotropy.

In particular, develop a MAGNET model to simulate flow in a randomly heterogeneous hydraulic conductivity field for two different scenarios shown in the figures below.

• Scenario A: driven by constant head difference, water moves along the "layering"

• Scenario B: driven by constant head difference, water move normal to the "layering"

For each scenario compute the flow, specific discharge, and effective conductivity. Explain the results: why are they so different?

Also compute the equivalent, effective anisotropy ratio Kx/Ky for the overall conductivity field.

Given  information: 

Hydraulic conductivity is a realization of random field, representing aquifer heterogeneity,

• correlation scale (representing the scale of heterogeneity)  in x  = 300m
• correlation scale in y = 10
• distance between river = 1000m