Badger Breathers Nov 2000 Badger Breathers Nov 2000 Weather and Weather and Breathing Breathing Edward J. Hopkins Edward J. Hopkins Dept. of Atmospheric & Oceanic Dept. of Atmospheric & Oceanic Sciences Sciences Univ. of Wisconsin-Madison Univ. of Wisconsin-Madison Badger Breathers – 14 Nov Badger Breathers – 14 Nov
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Badger Breathers Nov 2000 1 Weather and Breathing Edward J. Hopkins Dept. of Atmospheric & Oceanic Sciences Univ. of Wisconsin-Madison Badger Breathers.
Badger Breathers Nov Background u The Atmosphere u Pressure Changes u Temperature Changes u Humidity u Other Constituents
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Badger Breathers Nov 2000Badger Breathers Nov 2000 11
Weather and BreathingWeather and Breathing
Edward J. HopkinsEdward J. HopkinsDept. of Atmospheric & Oceanic SciencesDept. of Atmospheric & Oceanic Sciences
Univ. of Wisconsin-MadisonUniv. of Wisconsin-Madison
Badger Breathers – 14 Nov 2000Badger Breathers – 14 Nov 2000
Badger Breathers Nov 2000Badger Breathers Nov 2000 22
Surface Weather Map from Today Surface Weather Map from Today
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Background Background The AtmosphereThe Atmosphere
What It IsWhat It Is–An envelope surrounding the An envelope surrounding the
earth.earth.– Approximately 60 miles deep.Approximately 60 miles deep.–Contains gases, clouds (droplets & Contains gases, clouds (droplets &
ice crystals) and other particles ice crystals) and other particles (aerosols).(aerosols).
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COMPOSITION OF DRY AIR near Earth's Surface
Argon0.93%
Carbon Dioxide 0.03%
Oxygen 21%
Nitrogen 78%
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Air PressureAir Pressure
What it isWhat it is
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Air PressureAir Pressure
How we measureHow we measure– With a barometerWith a barometer– To getTo get
Inches of mercuryInches of mercury
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Air PressureAir Pressure Why a problemWhy a problem–Partial pressure exerted by Oxygen Partial pressure exerted by Oxygen
affects availability of oxygen for affects availability of oxygen for our lungs -- and how we breathe.our lungs -- and how we breathe.–Reduced pressure and availability Reduced pressure and availability
of oxygen occurs in mountains or of oxygen occurs in mountains or on airplanes.on airplanes.
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Percentage of Available OxygenPercentage of Available Oxygen as compared with Sea Levelas compared with Sea Level
0%10%20%30%40%50%60%70%80%90%
100%
Sea Level Madison Denver PikesPeak
Mt.Everest
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TemperatureTemperature
What we measureWhat we measure How we measureHow we measure
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