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Snotelier

Tom Baldwin
February 15, 2016
110

 Snotelier

A system for climbers and backcountry skiiers to preview avalanche danger from home.

Tom Baldwin

February 15, 2016
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  1. snotelier
    automated avalanche
    danger summaries
    Mark Gallup
    Tom Baldwin
    Insight Data Science
    Willamette Pass Ski Patrol

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

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

    View full-size slide

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

    View full-size slide

  5. 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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  6. feature engineering

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  7. 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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  8. labeling +
    validation
    human-generated zone advisories
    from Northwest Avalanche Center
    fit with logistic regression model

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  9. 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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  10. Tom Baldwin
    http://snotelier.com
    • Physics PhD 2015,
    University of Oregon
    • Semiconductor optics in
    high magnetic fields
    • Running, climbing,
    snowboarding
    baldwint.com

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