Hello! I have a very silly question, but I can’t find the answer in the documentation, nor in the forum.

I am currently using WebODM, which has the feature of downloading the Surface Model in TIF format.

I can open it and visualize it in Matlab to process it, which is great. The TIF file appears to be a matrix of floating point values, where the Matrix position represents the X,Y position of the image, and the elements of the matrix are the Z. So far, so good.

**The question is:** What is the unit for these Z? They are doubles, and they are around 100-130. Are they in meters, feet? Relative height or absolute height?

Theories and advice for where to look for the answer are welcome . Thank you very much in advance