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Snotelier
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Tom Baldwin
February 15, 2016
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Snotelier
A system for climbers and backcountry skiiers to preview avalanche danger from home.
Tom Baldwin
February 15, 2016
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Transcript
snotelier automated avalanche danger summaries Mark Gallup Tom Baldwin Insight
Data Science Willamette Pass Ski Patrol
None
? ?
measure snowpack properties once per hour 75 sites in WA,
81 in OR ? ? SNOTEL
measure snowpack properties once per hour 75 sites in WA,
81 in OR ? ? SNOTEL
measure snowpack properties once per hour 75 sites in WA,
81 in OR ? ? SNOTEL ? ?
measure snowpack properties once per hour 75 sites in WA,
81 in OR ? ? SNOTEL ? ? snotelier automatic avalanche danger summaries from SNOTEL data
feature engineering
Feature Value 1-day snowfall 0.0 3-day snowfall 8.0 max rate
of snowfall 4.25 1-day water equivalent -0.1 3-day water equivalent 0.8 max rate of water equiv. 0.3 temperature during storm 31.0 temp. trend during storm 0.0 feature engineering condense time series data to set of relevant features
labeling + validation human-generated zone advisories from Northwest Avalanche Center
fit with logistic regression model
algorithm
algorithm
who benefits? • Vastly expanded coverage area relative to NWAC
(now covers OR) • Generated summary easier to digest • Tool for existing avalanche forecasters to prioritize areas
Tom Baldwin http://snotelier.com • Physics PhD 2015, University of Oregon
• Semiconductor optics in high magnetic fields • Running, climbing, snowboarding baldwint.com