I've done a few 10k runs and some 1k repeats indoors on the treadmill at the gym, but for the long-slow-distance type of runs it's really much nicer to go outside. These shoes with spikes (Icebug ATTLA) provide added grip on harder snow and ice surfaces, although they are pretty slippery on an indoor stone floor. They are warm and waterproof although towards the end of today's 14k it felt a bit like running in rubber boots (there is a trade-off between waterproof and breathability I guess).

Running in loose snow is a bit  like running in loose sand on the beach. You spend a lot of effort and go almost nowhere! Today's pace was a minute or more slower per km than usual.

It's not unusual for us to have this much snow, but it is maybe a month or more earlier than normal.

It is not very often you see this kind of snow-plower-winter-tram!

7k walk from Kumpula to downtown. Google earth inserts a golf-playing green man at every kilometer.

Astrophotos will appear when I have time to process them. Also stay tuned for "yellow submarine" fresh out of the mould!

Nerdy Physics Note:
(*) There's no such thing as a "circular-polarizer", in the sense that a single optical element would only pass circularly polarized light (AFAIK), and what they sell in stores as "circular-polarizers" should of course be called a "linear polarizer followed by a quarter-wave plate", but I guess "circular-polarizer" is just shorter and easier. The quarter-wave plate is there because the autofocus system on many cameras uses polarizing beam-splitters for different paths of the beam, so a simple linear polarizer would sometimes cause the autofocus to fail.