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Iceblink is a white light seen near the horizon, especially on the underside of low clouds, [1] resulting from reflection of light off an ice field immediately beyond. The iceblink was used by both the Inuit and explorers looking for the Northwest Passage to help them navigate safely.
The ice front became anchored on the west among the Olympic Mountains near Quilecene Bay. Lake Russell spread across the southern basins of Puget Sound. Lake Hood drained across its southern outlets into Lake Russell. From Tacoma, the ice lay ice front lay 7 to 10 miles (11 to 16 km) to the north and lay across the Green River at Kent. 16300
A light pillar or ice pillar is an atmospheric optical phenomenon in which a vertical beam of light appears to extend above and/or below a light source. The effect is created by the reflection of light from tiny ice crystals that are suspended in the atmosphere or that comprise high-altitude clouds (e.g. cirrostratus or cirrus clouds). [1]
The last ice age. Hall, a professor at the University of Maine, dates rock samples to determine when and how fast the ice sheet in the Cordillera Darwin mountain range retreated over the southern ...
The ice caves are a popular attraction for residents from nearby the McMurdo Station and Scott Base research stations. Visitors report observing stalactite-like icicles on the cave ceilings, as well as intricate ice crystals. [5] Sunlight filtering through ice into the caves bathes the interiors with diffuse blue light. [6]
Mount Washington Observatory is a beacon for extreme weather data. It's where a wind speed of 231 mph was measured in 1934, setting the record for the highest wind speed ever recorded in the U.S.
The higher rear light is placed behind the front light. When the mariner sees the lights vertically in line, he is on the range line. If the front light appears left of the rear light, the observer is to the right of the range line; if the front appears to the right of the rear, the observer is left of the range line."
Penitentes under the night sky of the Atacama Desert Field of penitentes (1.5–2 metres or 5–7 feet high); upper Rio Blanco, Central Andes of Argentina Small penitentes in the summit crater of Mount Rainier Penitentes ice formations at the southern end of the Chajnantor plain in Chile Penitentes near the summit of the Agua Negra Pass on the border between Chile and Argentina