Doesn't help at all I'm afraid .There is no flat earth map I'm aware of . Never heard of that chap .
The Gleason AE map is just the imaginary globe model transposed onto a flat piece of paper. I think ,for what it's worth , that the AE map maybe reasonably accurate for anything North of the tropic of Capricorn since locations around and above that area can be verified for position by celestial observation. Not at the extreme North or South though.
Using Magnetic compass in Polar Regions
Did they verify the latitude of their observations by real measurement of sun position by sextant or simple triangulation using shadow length?
If not then it's rather a pointless set of observations and certainly not a proof of anything except gullibility perhaps .
The Gleason AE map is just the imaginary globe model transposed onto a flat piece of paper. I think ,for what it's worth , that the AE map maybe reasonably accurate for anything North of the tropic of Capricorn since locations around and above that area can be verified for position by celestial observation. Not at the extreme North or South though.
Using Magnetic compass in Polar Regions
Did they verify the latitude of their observations by real measurement of sun position by sextant or simple triangulation using shadow length?
If not then it's rather a pointless set of observations and certainly not a proof of anything except gullibility perhaps .

