Geophysics: Electrical Resistivity Mapping to Evaluate a Sinkhole Collapse

[@kesmurray7672]

Interesting study. I would like to know, when modelling your res data, do you use a least-squares inversion or a robust inversion? I have noticed that the least-squares is most common, however the robust inversion is said to better display geological contacts or changes as it preserves bulk features. Any comments on this?

[@kamelhebbache5567]

Thanks my friend for this video, it is very good, but i have a question for you, i have a 2D parallel profile of ERT, i want to create a model of 3D by combining these profiles, for to get a good visualization of the site interested. Can you help me how to do that....

[@pyramidgeophysicalservices15]

Advanced Geosciences, Inc. (AGI), located in Austin, TX, provides Earth Imager 3D resistivity data processing software that can be used to combined parallel 2D lines and invert them in 3D. I believe the data must have been collected using their SuperSting earth resistivity meter in order to use their software. You can contact them at www.agiusa.com/index.shtml

[@kamelhebbache5567]

Ok thank you, i will try it, maybe help me.

[@InjunOutdoors]

Also check KD Jones Instrument Corp. They are now located in WI and have several AGI instruments, Their prices are better than AGI for rental. AGI is great but they prefer to let others deal with rentals. Great companies

[@ADRNGZA]

which equipment do you use?