Types of curves in Vertical Electrical Sounding

In Vertical Electrical Sounding, there are basically 4 types of curves but in real situations in the field, we usually encounter situations where these curves are merged to form a compound curve.

ρ1 < ρ2 > ρ3 …... K-type curve (maximum type)

Do you know the difference between schlumberger array and wenner?

ρ1 > ρ2 < ρ3 …… H-type curve (minimum type)

ρ1 > ρ2 > ρ3 …… Q-type curve (descending type)

ρ1 < ρ2 < ρ3 …… A-type curve (ascending type)

Some compound curves:

ρ1 < ρ2 > ρ3< ρ4 ------ KH type

ρ1 > ρ2 < ρ3> ρ4 ----- HK type

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