Snotelier

Transcript

1. 1.

   snotelier automated avalanche danger summaries Mark Gallup Tom Baldwin Insight

   Data Science Willamette Pass Ski Patrol
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   None
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   ? ?

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   measure snowpack properties once per hour 75 sites in WA,

   81 in OR ? ? SNOTEL
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   measure snowpack properties once per hour 75 sites in WA,

   81 in OR ? ? SNOTEL
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   measure snowpack properties once per hour 75 sites in WA,

   81 in OR ? ? SNOTEL ? ?
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   measure snowpack properties once per hour 75 sites in WA,

   81 in OR ? ? SNOTEL ? ? snotelier automatic avalanche danger summaries from SNOTEL data
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   feature engineering

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   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
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    labeling + validation human-generated zone advisories from Northwest Avalanche Center

    fit with logistic regression model
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    algorithm

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    algorithm

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    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
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    Tom Baldwin http://snotelier.com • Physics PhD 2015, University of Oregon

    • Semiconductor optics in high magnetic fields • Running, climbing, snowboarding baldwint.com