Start Anywhere

wrote:
You both mean a "sphericonical pyramid". Why nick when you can nuke.
R
I thought it was a form of frustrum?
Are you sure the ends are spherical - Technically they would be
"geoidal" and conform to some variant of the WGS84 ellipsoidal model,
modified by the pressure distribution of the day.
Within the ability to measure I would say you could call it a Frustrum
of a cone. The vertical difference between the geometric straight line
and an ellipsoidal projection is likely to be less than your system error...