Latest Tweets

Follow Us On Twitter

Here it comes! This weekend could shape up to provide the goods. Check out @wasatchsnow... http://t.co/7qkEvE7zjI http://t.co/yKT7JyjRtK

What's all the hoopla about? The Yeti and others are stoked to ride @brianheadresort's g... http://t.co/jwKSbAq5um http://t.co/jFwhc6BjIP

Incredible first light on @brianheadresort's 50th #GoldenAnniversary day. The resort ope... http://t.co/96Gi5BQKpn http://t.co/LQ4PByr2Ru

The Surprising Motion of Ski Moguls

by Ski Utah Yeti November 23 2009 0 Comments

Mogul Motion (moguls)Ski moguls form on virtually all ski runs that are not mechanically flattened with grooming equipment. Those amazingly ordered structures are not planned or constructed; they organize spontaneously as a consequence of skiers turning and moving snow. Although phenomena that arise from self-organization are common, the moguls’ high visibility, ubiquity, and regularity make them a particularly surprising and impressive consequence of such seemingly random actions as ski turns. Ostensibly, skiers can turn when and where they please. Moreover, a skier’s turning radius depends on a variety of factors, including ski length and shape, snow conditions, skier ability, and the details of the skier’s knees and legs, which act as damped springs with a characteristic frequency. Nevertheless, the independent acts of many skiers form rows of moguls that not only space themselves in a regular checkerboard pattern (see panel a of the figure) but also migrate over time. And, although skiers invariably push snow down the mountain, the ski moguls move uphill.

Read the whole article here.

Here is a pretty cool time lapse of mogul movement.

Resorts Videos

Ski Utah Yeti

About the Author

Ski Utah Yeti

In search of The Greatest Snow on Earth®, the Yeti ultimately landed in Utah. Ski Utah has hired the Yeti as their official mascot and slopeside reporter. Follow the Yeti to get the latest info on local pow stashes, crazy events, storm totals, and tips and tricks on the best ways to maximize your Utah experience. The Yeti is also known to throw out the occasional swag.. so be sure to stay tuned. Yeti knows best!

Do you have stories, ideas or questions you would like to share with the Yeti? Facebook, Tweet or email him at yeti@skiutah.com. The Yeti will post the gnarliest and most radical tales in his posts.

Filter Posts By Author