Grid Math Artifacts from Original GRD files, Gridding Question (was: Problem send attachments

[KPC]

I need to make a question but i would like to attach some image at the post or send you a file bigger than 21KB how a can do that?

[KPC]

Thank you TomB.

I have a problem with a grid, I'm trying to do a subtraction of grids but a get some inconsistent data, because in some points the diference between the first and the second grid is too big, you can see the file "grid problem" just uploaded using the link you recommended.

Why this problem occurs? you can fix it somehow than go point by point editing the grid?

Thanks for you help again..

[KPC]

I sent you the grids, first one is "Pre-Failure_SA.grd" and second is "Post_failure_SA.grid", then i do a grid-math grid-grid & grid math subtract (Post_Failure_SA-Pre_Failure) my rockworks15 have revisión 2013.8.9, and was update 09/08/2013

[KPC]

Hi TomB,

Yes, you are right the differences exist in the original files, I already see that, But my question remains, do not understand how the interpolation gives the result as significant in specific sites. It seems strange this result, I've done this before and I had never given this. Maybe if you made a revised my point data can understand more my doubt, I have attached the file grid data.xls, columns X1, Y1 and Z1 are pre-failure data and columns X2, Y2 and Z2 are the data post- failure, hence generates both grids.

Thanks again....Sorry so much trouble

[KPC]

Hi....thanks for you help TomB, i was suspect something similar, thanks, my problem was the few points to make the model.