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Organizing the Global Historical Climatology Network

Organizing the Global Historical Climatology Network. Jill Hardy Race Clark Chris Natoli William Matthews. Temperatures: averages, records, and everything in between. What is “normal”? What is a “record”? “Strong” and “weak” records Climate change. 86 years of maximum temperatures

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Organizing the Global Historical Climatology Network

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  1. Organizing the Global Historical Climatology Network Jill Hardy Race Clark Chris Natoli William Matthews

  2. Temperatures: averages, records, and everything in between • What is “normal”? • What is a “record”? • “Strong” and “weak” records • Climate change

  3. 86 years of maximum temperatures Over 31,000 total measurements Bimodal Wide range – continental climate Can tell us rarity of all-time highs or all-time lows

  4. Now only 86 data points Normal distribution Wide variation still No outliers What if we could plot the temperature ranges as an animation through the year?

  5. Outliers! (20s on Pi Day and Spring Break …. Or 80s) Wide variation Long warm tail

  6. Nearly 2,700 points All those above 80 recorded in one week in 2012 Extremely unlikely! Note 10 to 90F range….

  7. Tighter distribution Subtropical climate Now you see a cold tail

  8. Tighter distribution Mediterranean climate When people in California say 80 or 90 is hot, you know they mean it….

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