Environmental activist spots unusual phenomenon miles away in foggy US | Page not found

Environmentalist Beth Pratt from California was walking in Yosemite National Park (California, USA) last Sunday (25/6) when she saw kilometers and kilometers of “suncups”.

“I’ve been hiking in the Sierra for 33 years. I’ve never encountered them before, but never to this extent. There was a lot of coverage and depth,” said Beth, regional executive director of the National Wildlife Federation’s California Regional Center. . “Some reached my waist,” he added, “SF Gate”.

“Suncups” are depressions in the ice that occur repeatedly, one after the other. They form in glaciers around the world. Usually, they are shallow and look like salad bowls, but they can also be several feet deep. Sometimes they look like egg cartons or honeycombs.

The registration period is also interesting. When wind blows across the ice in early winter (December in the Northern Hemisphere), “suncups” can form, “breaking the surface, creating different features in the ice, and becoming more hollow,” explained scientist and manager Andrew Schwartz. UC Berkeley’s Central Sierra Snow Lab in Donner Pass.

“When there is an extra-large snowfall like this winter, the snow has more material and time to melt and form ‘suncups,'” Adrian Harbold, associate professor of mountain ecology at the University of Nevada, Rhine, wrote in the article. .

“Also, suncups form later in the year when the sun rises and the sunlight reaches the bottom of the cup. Otherwise it’s shaded and cool all day,” he added.