Snow and ice researchers at the University of Waterloo, Canada, ask you to tweet snow depths in your area, or wherever you are, as part of the Snowtweets Project. Sign in to your Twitter account (or sign up for an account) and write a message from your laptop, desktop or smart phone that includes the depth, as well as your location.

Measure the snow depth where you live, work or play. Ideally, you can easily do this with a simple ruler by poking it into the snow straight down (vertically) to the ground at a place you think is representative of the snow in your area (maybe in the middle of your back yard or at an undisturbed/undrafted place on the way to work, or in your school yard). There is a section opposite that explains in more detail some of the best ways to measure snow depth.

To view the snow depth measurements (or tweets), we have developed a data visualization tool called Snowbird that lets you explore the reported snow depths around the globe. After you submit your tweet, give the system a few minutes to process the data and you should see your tweet show up in Snowbird.