Jan 20, 2022
The Return of the Ice Disk
Maine's giant, spinning ice disk is taking shape again. In 2019, it reached about 91 meters across, rotating slowly in the Presumpscot River. (Image credit: R. Bukaty/AP; via Gizmodo) Read the full article
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The Return of the Ice Disk
Maine's giant, spinning ice disk is taking shape again. In 2019, it reached about 91 meters across, rotating slowly in the Presumpscot River. (Image credit: R. Bukaty/AP; via Gizmodo) Read the full article
We’ve seen spinning ice disks before, but this month Westbrook, Maine has developed the largest one I’ve ever seen. A research paper from 2016 indicates that this seemingly alien formation spins due to an oddity of water. Water is at its densest around 4 degrees Celsius, so as the ice of the disk melts in the warmer waters of the river, it sinks. That downward plume sets up a vortex in the water beneath the disk. And as the water spins, it drags the ice with it, causing the disk’s rotation. The warmer the water is, the faster the disk spins. (Image credit: T. Radel/City of Westbrook; research credit: S. Dorbolo et al.; via Gizmodo; submitted by jpshoer)
Ice disk makes comeback in Maine - The Boston Globe
The ice disc is back baby!
January 2022
Image source: Bangor Daily News
Moon River
By Linda Tancs
It’s as if the moon dropped into a river. That’s what the giant ice disk in the middle of the Presumpscot River in Westbrook, Maine, looks like. Garnering worldwide attention, the rotating phenomenon is 300 feet in size, arguably the biggest ice disk on record. Take that, crop circles.
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Westbrook, Maine, Ice Disk
A rather strange, but fascinating phenomenon - a rotating ice disk which formed on the Presumpscot River in Westbrook, Maine (and which just happens to look like the surface of the moon) -- occurring rarely but not so rarely that they haven’t been seen elsewhere (and with better music than the one above).