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					Chapter 1-3: Weather Forecasting
A. Define, Describe, or Identify:
   1. Weather Forecasting -

   2. NWS -

   3. Raob -

   4. Rawin -

   5. Solar Observation Network -

   6. TIROS -

   7. ASOS Program -

   8. Flight Service Station (FSS) -

   9. PATWAS -

  10. Surface Analysis Charts (SA) -
B. Fill in the Blank:
   Using the words listed below, fill in the blank with the word or words necessary to
   complete the statement. Each word may be used once, more than once, or not at all.

                  PIBALS                          Sun
                  AFWA                            ASOS
                  meteorology                     computer
                  oceans                          military
                  synoptic                        maps
                  sunsynchronous                  civilian
                  satellite                       GOES
                  radar                           weather
                  reports                         forecaster

   1. The Air Force Weather Agency is the largest of the ___________________
      weather services.

   2. __________________________ are made using balloons that are tracked by
      instruments as they rise.

   3. Storm detection __________________________________ gathers data showing
      the distribution of rain, hail, thunderstorms, tornadoes, and hurricanes.

   4. A solar observation network monitors the events occurring on the

   5. ___________________________ satellites allow weathermen to view nearly the
      whole planet at once.

   6. About 75 percent of the Earth is covered with

   7. A __________________________ orbit means that the satellite is placed in a
      polar orbit at the proper time and orbital altitude to keep the craft always in

   8. Electronic data processing machines or ________________________ have
      become valuable to modern weather service.
 9. _________________________________ summary charts are used mainly to
    point to areas of likely dangerous weather in and around the cloud regions shown
    on other weather charts.

10. _____________________________ is a science that still has a long way to go to
    achieve perfect forecast accuracy.
C. Multiple Choice:
   Circle the letter that correctly answers the question or completes the statement.

   1. A weather instrument used for measuring atmospheric pressure.

      a.   Hygrometer
      b.   Psychrometer
      c.   Barometer
      d.   Thermometer

   2. Invented in 1643, this instrument was the best for predicting weather several
      days in advance.

      a.   Hygrometer
      b.   Psychrometer
      c.   Barometer
      d.   Thermometer

   3. A weather instrument used for measuring the temperature of the air.

      a.   Psychrometer
      b.   Thermometer
      c.   Barometer
      d.   Hygrometer

   4. An instrument used for measuring the amount of moisture in the air.

      a.   Psychrometer
      b.   Thermometer
      c.   Barometer
      d.   Hygrometer

   5. An instrument that provided a very precise measurement of the amount of water
      vapor mixed in the air.

      a.   Barometer
      b.   Hygrometer
      c.   Thermometer
      d.   Psychrometer
6. An atmospheric probe for measuring pressure, temperature, and relative

    a.   Radiosonde
    b.   Dropsonde
    c.   Rawinsonde
    d.   Pilot Balloon

7. This instrument senses the atmospheric conditions and converts this information
   to radio signals that are sent to a ground or air receiving station.

    a.   Radiosonde
    b.   Dropsonde
    c.   Rawinsonde
    d.   Pilot Balloon

8. An instrument released from a high-flying aircraft to measure weather

    a.   Radiosonde
    b.   Dropsonde
    c.   Rawinsonde
    d.   Pilot Balloon

9. Carries a reflector so it can be tracked by radar, in addition to the information
   provided by radio.

    a.   Pilot Balloon
    b.   Rawinsonde
    c.   Radiosonde
    d.   Dropsonde

10. An observation of temperature, pressure, relative humidity, and winds aloft.

    a.   Pilot Balloon
    b.   Rawinsonde
    c.   Radiosonde
    d.   Dropsonde
D. True/False:
   Place a T in the blank if the statement is true, and an F in the blank if the statement
   is false.

        1. By regulation, the military weather service may not give weather service to
           civilian organizations or persons, except under emergency or other special

        2. Weather behaves according to physical laws.

        3. Years ago a few people riding small boats and balloons penetrated severe
           storms in an attempt to understand what was occurring.

        4. Space Environment Monitor (SEM) measures the amount and intensities of
           energy emanating from the Sun.

        5. Radar systems gather information by bouncing radio waves off objects.

        6. The Doppler effect is named after Austrian physicist, Christian Doppler.

        7. Since the invention of the telegraph more than a century ago, man has been
           able to learn about the weather beyond the horizon.

        8. Development of the computer in the twentieth century helped to fill
           important gaps about weather conditions over ocean and wilderness areas.

        9. Computers are capable of plotting limited weather data, analyzing the wind
           flow pattern, predicting future patterns, and drawing the analyzed chart and
           the forecast chart.

        10. Many pilots and the public get weather information by telephone.

        11. Despite progression in recent years, weather forecasting is not an exact

        12. A forecaster can predict the passage of a fast-moving cold front within 2
            hours of its arrival.

        13. Hurricanes are difficult for forecasters to track because of erratic paths.

        14. A warm front is extremely difficult to locate.
E. List or Describe:
   1. Describe how the Doppler effect may be demonstrated.

   2. Describe the operations of the National Weather Service.

   3. Describe the geostationary satellite.

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