The weather that makes the dots
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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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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


The weather that makes the dots

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)


The weather that makes the dots

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)


The weather that makes the dots

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)


Temperature at mount washington nh

Temperature at Mount Washington, NH

June 2007


Climate vs weather

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


Fractals

Fractals


Fractals fronts

Fractals-fronts

cool

warm

Supercell Thunderstorm

cool

warm

Extratropical cyclone


Supercell with small hook echo

Supercell in southeast NH July 18, 2008

Supercell with small hook-echo

Prompted issue of Tornado Warning for Durham

and surrounding towns


Storm reports storm prediction center

Storm ReportsStorm Prediction Center


Us water vapor imagery

US water vapor imagery

If above link doesn’t work you can get it here:

http://rap.ucar.edu/weather/satellite


How do clouds form

How do clouds form?


Cool air until it is saturated

Cool air until it is saturated

- also, radiative cooling until air reaches saturation: fog


The weather that makes the dots

Cohos Trail near Dixville Notch

orographic uplift


What weather phenomena impact new england weather and climate

What weather phenomena impact New England weather and climate?


Time and space scales of weather phenomena

Time and Space Scales of Weather Phenomena


Common storm tracks

Common Storm Tracks

cold, dry

Alberta Clipper

Colorado (Lee) Low

moist

warm

Coastal Track

warm, moist


Orographic effects

Orographic Effects


Seabreeze

Seabreeze


Ocean lake effect snow

Ocean & Lake Effect Snow

Short-lived, localized events


Gulf stream gulf of maine ssts

Gulf Stream & Gulf of Maine SSTs

NOAA


Westerly mid latitude winds

Westerly Mid-latitude Winds


Nor easters coastal storms

Nor’easters, Coastal Storms

Energy gained from contrast between

cold-dry and warm-moist air masses

Blizzard of Feb. 2006


Hurricanes

Hurricanes

Hurricane Bob 1991


Enso tropical pacific sst

ENSO: Tropical Pacific SST

El Niño (Dec. 1997) La Niña (Dec. 2000)

http://www.elnino.noaa.gov/lanina.html


El nino southern oscillation tropical pacific sst

El Nino-Southern Oscillation: Tropical Pacific SST

http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/ensocycle/meanrain.html


North atlantic oscillation

North Atlantic Oscillation

+Warmer and

less snow

Variability on

Order of

Weeks

-Colder and

more snow


Land use effects

Land Use Effects


Mount washington

Mount Washington


Fun facts

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


Helpful links

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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