| Term: | Arctic haze |
| Definition: | Haze in Arctic regions which reduces horizontal and oblique visibility and which may extend to a height of about 10 km. It appears blue-grey when viewed away from the Sun, and reddish-brown toward it. |
| Term: | Arctic haze |
| Definition: | A condition of reduced horizontal and slant visibility (but unimpeded vertical visibility) encountered by aircraft in flight over arctic regions. |