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The Weather that Makes the Dots

The Weather that Makes the Dots. TESSE 22 July 2008 Eric Kelsey Institute for the Study of Earth, Ocean and Space - UNH. Temperature Cycle over 7 Glacial Cycles. 600. Projected Concentration After 50 More Years of Unrestricted Fossil Fuel Burning. 500. 400. 300. 280. 260. 240.

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The Weather that Makes the Dots

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  1. The Weather that Makes the Dots TESSE 22 July 2008 Eric Kelsey Institute for the Study of Earth, Ocean and Space - UNH

  2. Temperature Cycle over 7 Glacial Cycles 600 Projected Concentration After 50 More Years of Unrestricted Fossil Fuel Burning 500 400 300 280 260 240 CO2 Concentration CO2 [ppmv] 220 200 180 Temp. in F° 600,000 500,000 400,000 300,000 200,000 100,000 0 Age (yr BP)

  3. Seasonal Temperature Cycle over 7 Years? 600 Projected Concentration After 50 More Years of Unrestricted Fossil Fuel Burning 500 400 Year 1 2 3 4 5 6 7 600,000 500,000 400,000 300,000 200,000 100,000 0 Age (yr BP)

  4. Diurnal Temperature Cycle over 7 Days? 600 Projected Concentration After 50 More Years of Unrestricted Fossil Fuel Burning 500 400 Mon Tue Wed Thu Fri Sat Sun 600,000 500,000 400,000 300,000 200,000 100,000 0 Age (yr BP)

  5. Temperature at Mount Washington, NH June 2007

  6. climate- Meteorological elements that characterize the average and extreme conditions of the atmosphere over a long period of time at any one place or region of the earth's surface. (Environment Canada) weather- The state of the atmosphere with respect to heat or cold, wetness or dryness, calm or storm, clearness or cloudiness. (Massachusetts Dept. of Education) Climate vs Weather

  7. Fractals

  8. Fractals-fronts cool warm Supercell Thunderstorm cool warm Extratropical cyclone

  9. Supercell in southeast NH July 18, 2008 Supercell with small hook-echo Prompted issue of Tornado Warning for Durham and surrounding towns

  10. Storm ReportsStorm Prediction Center

  11. US water vapor imagery If above link doesn’t work you can get it here: http://rap.ucar.edu/weather/satellite

  12. How do clouds form?

  13. Cool air until it is saturated - also, radiative cooling until air reaches saturation: fog

  14. Cohos Trail near Dixville Notch orographic uplift

  15. What weather phenomena impact New England weather and climate?

  16. Time and Space Scales of Weather Phenomena

  17. Common Storm Tracks cold, dry Alberta Clipper Colorado (Lee) Low moist warm Coastal Track warm, moist

  18. Orographic Effects

  19. Seabreeze

  20. Ocean & Lake Effect Snow Short-lived, localized events

  21. Gulf Stream & Gulf of Maine SSTs NOAA

  22. Westerly Mid-latitude Winds

  23. Nor’easters, Coastal Storms Energy gained from contrast between cold-dry and warm-moist air masses Blizzard of Feb. 2006

  24. Hurricanes Hurricane Bob 1991

  25. ENSO: Tropical Pacific SST El Niño (Dec. 1997) La Niña (Dec. 2000) http://www.elnino.noaa.gov/lanina.html

  26. El Nino-Southern Oscillation: Tropical Pacific SST http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/ensocycle/meanrain.html

  27. North Atlantic Oscillation +Warmer and less snow Variability on Order of Weeks -Colder and more snow

  28. Land Use Effects

  29. Mount Washington

  30. July: warmest month (ave high: 54F) 2nd driest month (8.02”) Least snowiest: 1.1” most ever 3rd highest temp (71F) 2nd least windiest: 25.3mph ave. Coldest month: January (14F ave high) Wettest: November (10.49” ave) Snowiest: December (55” ave) Coldest temp: -47F (Jan 1934) Windiest: Jan 46.3mph Fun Facts

  31. Helpful Links • Storm Prediction Center: spc.noaa.gov • University Corporation for Atmospheric Research: rap.ucar.edu/weather • National Weather Service nws.noaa.gov

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