Ground based IR telescope vs Airborne IR telescope?

SOFIA.

https://blogs.nasa.gov/sofia/

SOFIA: Stratospheric Observatory for Infrared Astronomy

SOFIA, the Stratospheric Observatory for Infrared Astronomy, is a Boeing 747SP aircraft modified to carry a 2.7-meter (106-inch) reflecting telescope (with an effective diameter of 2.5 meters or 100 inches). Flying into the stratosphere at 38,000-45,000 feet puts SOFIA above 99 percent of Earth’s infrared-blocking atmosphere, allowing astronomers to study the solar system and beyond in ways that are not possible with ground-based telescopes. SOFIA is made possible through a partnership between NASA and the German Space Agency at DLR.

>>16009530

Dome-C Antarctica

https://www.esa.int/ESA_Multimedia/Images/2019/06/Dome_C_Antarctica

Dome A, Antarctica

Dome A map Dome A (click to enlarge)

Over a decade of site testing in Antarctica has shown that both South Pole and Dome C are exceptional sites for astronomy, with certain atmospheric conditions greatly superior to those at existing mid-latitude sites. The highest point on the Antarctic plateau, Dome A, experiences even colder atmospheric temperatures, lower wind speeds, and a turbulent boundary layer that is confined even closer to the groun

http://mcba11.phys.unsw.edu.au/~plato/