- Help Desk
- Electrical Resistivity Imaging Field Survey
- General questions about ERI
Will Roll-Along increase my survey depth?
Short Answer: No.
Long Answer: The depth of investigation depends on the largest array span during the survey—not the length of the survey line. As such, roll-along will not increase the depth of investigation.
Tip: Since it has the same number of electrodes and electrode spacing, we recommend the Pole-Pole array to get the most penetrating depth.
Related Material:
We have written an article on the on depth of investigation for resistivity surveys.
We have written an article on how to perform a roll-along.