1101 wrote: ↑
Thu Feb 14, 2019 5:16 am
… But I'm moving to Toronto, Canada, in a month or so. So yeah, big difference.
Hey, welcome! I'm in the east end of Toronto. It's warmed up to a balmy -3 °C, and the 30+ cm of snow we got over the last few days means we have car-sized snow piles. What made things really
interesting was the pellets (very fine hail: falls like glass beads, clumps together like snow forming rock-hard white glaze) followed by freezing rain (clear glaze ice, maybe 2-3 mm). Freezing rain stops everything
I used to install and maintain weather stations across Canada, and before that, in Europe. Most anemometers you can afford will ice up. klricks' employer MetOne makes a good series of cup anemometers, but they weren't commonly used in my field, wind energy¹. Anemometers coloured black tend to ice less. I mostly deployed RM Young propeller anemometers and WindSpeed Porton-style cup anemometers. Both of these are in the 3-4 digits price range each. In a station near Toronto, you might lose a couple of days of data from icing every year. Rotating anemometers tend to ice up slowly, so there might be an 8-12 hour period before and after a freezing event that you can't trust the wind speed.
¹: for $REASONS
, mostly that wind meteorologists tend to stick grumpily to their favourite, tested brand and will add huge uncertainty bands to site assessments that used brands they don't know. Yes, I've seen respected meteorologists get drunk and start yelling at each other over cup anemometer hysteresis, off-axis response and bearing chatter. Unfortunately.
‘Remember the Golden Rule of Selling: “Do not resort to violence.”’ — McGlashan.