Category: "Cloud science"
To understand snow formation, one must know a little about clouds.
Q: What is in a cloud?
A: Air, dust, vapor, droplets, and often, ice.
Q: How much air? How much liquid water? How much ice?
A: The answers will probably surprise you. See my short 20-min presentation below. I gave this recently to the Bellingham, WA Snow School. (23 slides, but due to file-upload-size restrictions, I had to put them into three parts below, 10 slides, 6 slides, 7 slides.)
Snow, rain, and weather affect everybody, yet how many of us learned in school even the most basic facts about precipitation in school?
Q: Who first realized how ice grew in a cloud?
As described in my presentation, he realized this by observing frost on the ground.
Q: Who first realized how Alfred's theory was intimately connected with rainfall?
Tor discovered this by observing fog in a mountain forest, and like Alfred, applied some of his physics knowledge.
In my presentation, I discussed Alfred Wegener, the roles of the different cloud components, and briefly how the ice, once formed, takes on its strange shapes:
First 10 slides (with blue text added to account for the things I said during the talk):
Next 6 slides:
Last 7 slides:
Later, I will show specifically how the ice gets arranged into all these strange shapes.