Snowdrifts and Glaciers… February 28
Have I said that the weather has been weird this winter? Probably. If I haven’t complained here, I’ve complained plenty elsewhere. We normally get winter. Proper. Canadian. Winter. November and December can be a bit messy with snow followed by above freezing temperatures followed by freezing. But by January it usually settles down to being cold and staying that way until about March. This means that once the roads and sidewalks have been plowed and salted, they stay dry and clear. When it is really cold, it is sunny with bright blue sky. The canal freezes and you can skate on it (if you wrap up warm). You remember why you read those labels on the boots that say what temperature they were warm to and why you chose the ‘warm to -40C’ over the ‘warm to -10C’. You have ridiculous conversations with Americans (and anyone else who will listen) about how -40C and -40F are exactly the same temperature (damn cold, in case you were wondering).
Not this year. This year we are getting someone else’s winter. It is warmer than usual. This is not a good thing. It means more snow for one thing. And it means that the snow melts and then it gets cold again. But because of those burms (snow piled up by the snowplow, really that is what they are called though they might be spelled berms) along the side of the road, the water just sits there on the sidewalk. And then it gets cold and freezes. Making the sidewalk a bit hazardous to say the least.
And we get freezing rain which is hands-down the most evil weather on earth. And you haven’t got a clue how cold it is on any given day and never get used to it and…
Okay, so you get the picture but what does this have to do with glaciers, you say. Well, the other day I was thinking that glaciers must have layers of snow and ice and whatnot created by snowfall, melt, refreeze, and pressure. And I figure that maybe the snow in my yard exhibits similar characteristics. How hard can it be to take a core sample and have a look at that?
I mentioned it last week and the kid has been using her best ‘isn’t my mom nuts’ voice to repeat that suggestion to lots of people. However, the other day she asked if she could go down the basement and look for something suitable for taking core samples. She came back up with a piece of shower rod.
I have been looking around for resources to help in this not-very-well-thought-out endeavor. I’m not getting much. This site looks like it has some promising information at about the right level. And this one explains a few things for me. The only thing I could find on core samples doesn’t deal with ice and says it is for grades 7 & 8 but it might be helpful.
I e-mailed a friend who is a physical geographer and she gave me some tips. One was that a tube that is split and then held back together is good because you can take the sample (push into the snow, cover the end with your hand to seal, pull out with your hand over and the snow should stay in) and then slice it down the middle to get a good look at it. She also mentioned that layers are probably visible if you cut a slice with a spade or something to give a flat ‘face’ to the snow. You might even be able to feel the difference in density with your hand.
If anyone has done something like this (and I realize that geographical location is going to be an important limiting factor) and has some tips let me know. I’ll update once we actually get out there and do it. If I had a digital camera (which I don’t) or a film in the old-fashioned camera (also, no) I’d post photos. It’s on the list.
And I have a vague plan to actually record the weather in some future year and then check the snow to see how the layers match up with the weather patterns…

