Artysmart

when you scroll along the elevation profile a pop out window show the height. as a newbie im finding this a bit confusing. the above ground is self explanatory but the "above" which does I assume means sea level changes quite dramatically. ie flying across UTAH USA the above aground will say for instance 6000 feet with an above of only hundreds and as you move along the above will go into thousands . Can anybody explain this to me . Thanks in advance

Thanks for that. It was a bit confusing at first as I could not fathom out the red circle

Hi can any body tell me what the marked symbol means in the attached image. Thank youhttps://www.picdrop.com/artgood/Ri3rd4z9zw