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Chp 11.2 NOTES

Chp 11.2 NOTES. Studying States of the Atmosphere. MAIN IDEA #1. Atmospheric scientists use a large variety of instruments to help us study and predict atmospheric conditions that are constantly changing hourly, daily, yearly….. . (Atmospheric) Measurements & Instruments.

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Chp 11.2 NOTES

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  1. Chp 11.2 NOTES Studying States of the Atmosphere

  2. MAIN IDEA #1 Atmospheric scientists use a large variety of instruments to help us study and predict atmospheric conditions that are constantly changing hourly, daily, yearly…..

  3. (Atmospheric) Measurements & Instruments Temperature Define:A degree of hotness or coldness measured on a definite scale. Instrument: Thermometer

  4. Relative Humidity Define:Ratio of water vapor actually in the air compared to the maximum water vapor amount That the air can hold at a given temperature.

  5. Instruments: hygrometer or psychrometer Use (of a psychrometer): 2 thermometers- 1 w/ a wet bulb, 1 w/ a dry bulb. Spin together in air, compare. The greater the temp. differences, the less humid the air is. Put wet gauze on end of bulb.

  6. AIR PRESSURE Define:The force with which air pushes down on Earth. Instruments: Barometer

  7. WIND DIRECTION INSTRUMENTS:weather vane, wind sock

  8. Rainfall Amount INSTRUMENTS:rain gauge.

  9. Wind Speed INSTRUMENTS:anemometer, wind sock

  10. Upper atmosphere INSTRUMENTS:radiosondes, satellites, radar

  11. MAIN IDEA #2 Earth is able to maintain relatively stable temperatures, even w/ the large amount of heat energy sent from the sun.

  12. Main Idea 3: Air temp & density directly affect pressure. These Pressure differences lead to air movement.

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