Okay one more then shopping I go.
Yesterday an Anon posted about flat earth 'proof' manhattan from 60 miles away, and some refraction blah blah is proof of flat earth
soooooooo I brought this for flatearthfag consideration in the example given.
REFRACTION IN THE ATMOSPHERE
https://www.islandnet.com/~see/weather/elements/mirage1.htm
Superior Mirage
Superior Mirage: Scale is greatly exaggerated.
The superior mirage occurs under reverse atmospheric conditions from the inferior mirage. For it to be seen, the air close to the surface must be much colder than the air above it. This condition is common over snow, ice and cold water surfaces. When very cold air lies below warm air, light rays are bent downward toward the surface, thus tricking our eyes into thinking an object is located higher or is taller in appearance than it actually is.
Superior Mirage
Superior Mirage allows sight beyond the horizon: scale is greatly exaggerated.
The superior mirage can also make objects appear to be floating in the air or cause objects actually located below the horizon to appear above it (remember the setting-sun example), a condition called looming. The superior mirage can also cause objects appear to be taller than they actually are, called towering, or shorter, a condition termed stooping.
Occasionally, we can see a variation on the inferior mirage on a smaller scale over a vertical surface. In this situation, the strong heating of a vertical surface by the sun or an internal heat source (such as a motor cover) can develop a strong temperature gradient extending laterally outward from the surface. This condition can form a lateral mirage. A lateral mirage will appear as an apparent reflection of a nearby image and form just over the wall or rock face.
This "inferior" lateral mirage results from a strong temperature gradient next to the wall similar to the condition of an inferior mirage turned sideways. David K. Lynch and William Livingston in their book Color and Light in Nature suggest that there is no reason a "superior" lateral mirage could not form over a cold wall surrounded by warm air, but they had never seen one.
Interestingly, only one of the Weather Field Guides that I am familiar with ( National Audubon Society First Field Guide: Weather ) has any discussion of mirages. Therefore, I refer you to three books which can be used as guides on the subject of mirages (and a lot of other atmospheric optics topics as well) and another related volume.