
Arctic Mirage (Hillingar) - Geophysical Institute
Feb 12, 2026 · In the arctic mirage a distant object appears right way up but higher up than the actual location. Though arctic and desert mirages seem to be quite different, they share a common …
The Parry Arc | Geophysical Institute
Feb 19, 2026 · Was this a mirage, the northern lights or what? A possible explanation is the Parry arc named after the explorer, W. E. Parry, who first reported seeing the phenomenon while searching for …
Mirages | Geophysical Institute
Feb 19, 2026 · Even when the air is stagnant, there is enough air movement to cause the mirage images to come and go rapidly. Unfortunately, the same layering that gives us glorious mirages compounds …
The Highest Mirage in North America | Geophysical Institute
Mar 2, 1995 · This type of arctic mirage differs from "inferior" mirages, those that occur in deserts or over hot road surfaces, because the air layers are reversed. In a desert or on hot blacktop, heated air lies …
Unusual Events in the Sky | Geophysical Institute
Feb 19, 2026 · Fireball meteors, auroras, noctilucent clouds, mirage phenomena, atmospheric dust, city lights reflected from clouds, earthquake lights, lightning, forest fires, ice crystals and raindrops in the …
Fata Morgana | Geophysical Institute
Feb 19, 2026 · Fata Morgana, also known as Morgan le Fay, was a fairy enchantress skilled in the art of changing shape. In one traditional story she was King Arthur's sister and learned many of her skills …
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Sun Pillars | Geophysical Institute
Feb 19, 2026 · The northern atmosphere produces many astonishing optical effects. One reason for this is that there is a strong temperature gradient and marked stratification of air layers. These conditions …
Changing channels | Geophysical Institute
Since it was established by an Act of Congress in 1946, scientists at the Geophysical Institute have studied geophysical processes from the center of the Earth to the surface of the sun and beyond, …
Frozen ocean, solid science | Geophysical Institute
The train of 10 snowmachines snaked slowly across the snow-covered Arctic Ocean ice toward the small tent far ahead, a single drop of yellow paint on a textured white canvas whose edges couldn’t …