Excellent inversion program. Good results. I have a question about the horizontal distance in 2D. In the field we use 99% of the time the "tape" distance. Not horizontal distance. In a terrain with topagraphy a tape distance is always larger than the horizontal. For example, in a slope if I use 5m of the tape, the horizontal distance will be about 4.8m for example. My question is how to inform the inversion that my distance is the "tape" and not the horizontal? Thanks!
@ResIPy
Жыл бұрын
(Thank you!) That is a good point about tape distance! However, you must use the absolute coordinates of points in ResIPy. Meaning, you would need X, Z of each electrode for 2D surveys (X, Y, and Z for 3D); this should be calculated and imported in the Electrodes (XYZ/Topo) tab.
@x.trailcwb1546
Жыл бұрын
@@ResIPy THanks a lot for fast answer! I hope in the future you can elaborate a automatic calculation of "absolute" coordinates in 2D. I suppose can use triangles to calculate. For example the "tape" distance between one electrode to other will be the "hypotenuse" (C), the horizontal distance will be the lower side of the triangle (A) and the difference from the elevation of both electrodes will be the "vertical" side (B). So Cquare2 = Asquare2 + Bsquare2.
@ResIPy
Жыл бұрын
@@x.trailcwb1546 Thanks for letting us know about this. Keep an eye for the new version that we're releasing in a few days. We have implemented this feature for 2D surveys and added a checkbox in the "Electrodes (XYZ/Topo)" tab that converts x values measured with a tape to the true x, given topography exists.
@x.trailcwb1546
Жыл бұрын
@@ResIPy Fantastic!!! Thanks!
@saminaumer7182
2 жыл бұрын
Hello again and thank you for the great videos. I was looking through them again now, that I have managed to produce some convincing models with ResIpy. We are doing some investigations in an area with clear bedrock boundaries and a supposed underground tunnel. In order to better visualize those elements, we were thinking of using the l1-norm instead of l2-norm. I found some older comments saying, that ResIPy does not support l1-norm inversion. Is this still true? I noticed that under the inversion method there is an option for blocked linear regularised type. Does this type achieve similar results? We ordered the book, where it is probably explained, but it will take a couple weeks to arrive, so maybe You have an answer to this question. Furthermore, when I try to use the blocked linear regularised type inversion, the inversion starts and stops without any error messages, but no results are obtained. The inversion also only runs for a couple seconds.
@ResIPy
2 жыл бұрын
ResIPy does not support L1-norm and the blocked linear regularization inversion is different than that.
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