Snow bedforms – such as dunes, ripples, and anvil-shaped sastrugi – cover as much as 11% of the surface of the Earth, but their formation is barely understood.
For the past three winters, I’ve documented the evolution of snow bedforms in the Colorado Front Range using time-lapse videos, and produced 1000 hours of the first footage of snow bedform growth and evolution.
![Photo gallery : snow bedforms](https://www.kochanski.org/kelly/wp-content/uploads/2018/12/sastrugi2-150x150.jpg)
![](https://www.kochanski.org/kelly/wp-content/uploads/2018/12/tl-finalimage-150x150.png)
How do snow bedforms evolve?
We are now preparing examples, documenting the movement of several types of bedforms, for publication. You can preview the figures below.