Slope of Surface After Kriging

[Joyfer]

Hello all,

Please find the attached picture. It shows a surface with its data points. I extended the surface to the outer boarder shown by kriging. The slope of the surface that was added with the extension (past the data points) has an upward slope that was generated. I need the surface to stay level with the data points that are there.

Does anyone know how to avoid that added slope when extending a surface?

Thanks,

Joy

[neilyj666]

no I don't but depending on the size of the extended surface it is sometimes easier to use the other tools to add points or just "eyeball" it

[Joyfer]

Well I have 18 ponds about 25 acers a piece. So what process would you suggest for extending the surface? I could add points like you mentioned it's just that I am hopeful that there is a quicker way.

[neilyj666]

without seeing the data it's a but difficult to say for sure what is happening

[sboon · Accepted solution]

Assuming that you have a featureline around the top edge of your pond you could use the SteppedOffset command to create another featureline at a specified distance from the pond with the same elevations.  Another method would be to draw a featureline that follows the new proposed boundary, then use the Adjacent Elevations by Reference command to make the new featureline match the elevations of the existing pond edge.

Add the new featurelines to your surface and you're done.

Steve
Please use the Accept as Solution or Kudo buttons when appropriate

[Joyfer]

Alright, here attached is one of the pond surface and the problem area is boxed in blue. Let me know what you think.

This is the most simple pond (it wouldn't be hard to add extra points to this surface to fix it but the others it would be a lot of trouble).

Many Thanks

[Joyfer]

Okay I didn't see your post before I posted the surface just now. I'll try out the feature line method, it sounds promising. 

[Joyfer]

Perfect solution. Thank you again Sir!!