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Polar contrail's dark shadow from above

Polar contrail's dark shadow from above

I have yet to notice a contrail's shadow while standing on terra firma. Yet, there it is from a high vantage point.

At 31,000 feet and 30 miles back from Churchill on a northbound flight, we crossed over another plane's mid-troposphere contrail and silhouetted shadow. This ice crystal phenomena was enhanced by the low-angle of light cast by the early morning's rising sun.

The west-facing aerial view also shows a low angle-highlighted glacial drumlin field below courtesy of the former continental ice sheet slipsliding towards Hudson Bay. The Laurentide Ice Sheet would have been 3 miles (5 km) thick at the time of its glacial maximum. In other words, central Canada's big ice would have reached halfway up to my ride.

detailed link for Kischiayamweekemow, Manitoba
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Photo prise @ Kischiayamweekemow le 26 novembre 2018 (© subarcticmike / Flickr)

Voir aussi :
 subarcticmike, aerial, contrail, great circle, ice, ice crystals, troposphere, canada, travel, 6ws, sixwordstory, manitoba, geotagged, glaciated, drumlin, field, drumlin field, treeless, permafrost, tundra
 

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