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5 Written questions

5 Matching questions

  1. What is the rule for naming winds?
  2. What are Trade Winds?
  3. What do high pressure cells tend to do?
  4. Describe land-sea breezes.
  5. Explain air pressure tendency.
  1. a
    Land-sea breezes are driven by the thermal inertia of water. When land and sea receive the same amount of insolation, the land heats up faster than the water. This temperature gradient causes winds to blow. At night, radiational cooling cools the land faster than the water so that the temperature gradient makes a wind blow from land to sea. These breezes also occur for large bodies of water, such as the Great Lakes.
  2. b The wind direction is always reported as the direction from which the wind is blowing. Winds which blow from the west, for example, are westerlies. They blow towards the east. Winds which blow from the south are called southerlies. They blow towards the north.
  3. c High pressure cells tend to descend and diverge.
  4. d Air pressure tendency is important, along with the air pressure reading on a barometer. Falling air pressure, which corresponds to a decrease in the length of mercury in the column on a mercurial barometer, generally indicates stormy weather.
  5. e Trade Winds blow out of the equator side of the anticyclones. In the Northern Hemisphere, they are the Northeasterly Trade Winds. They are the most persistent winds in the world, blowing in the same direction about 80% of the time.

5 Multiple choice questions


  1. The Coriolis Effect deflects winds fro ma straight line in relation to the Earth's rotating surface. Earth's rotation adds the Coriolis Effects and a "twist" to air movements. In the Northern Hemisphere, winds are deflected to the right, or the east. In the Southern Hemisphere, winds are deflected to the left, or the west.
  2. Equal wind speed.
  3. Equal rainfall.
  4. An isoline connecting all points of highest mean temperature.

  5. The four major pressure areas on Earth are the Equatorial Low (warm, wet 10 degrees N/S), Polar High (cold, dry 90 N/S), Subtropical High (hot, dry 20-35 N/S), and the Subpolar Low (cool, wet 60 N/S).

5 True/False questions

  1. What four factors affect atmospheric circulation?Isopleths must be continuous and cannot intersect other isopleths. All values above the isopleth should be on one side of the line and all values below an isopleth should be on the other side of the isopleth. The position of the isopleth should be interpolated in between points of known data. They should choose a contour interval and start at an area of high or low values.

          

  2. Isoheight or contour line is what?Equal temperature.

          

  3. How is air pressure measured?Air pressure tendency is important, along with the air pressure reading on a barometer. Falling air pressure, which corresponds to a decrease in the length of mercury in the column on a mercurial barometer, generally indicates stormy weather.

          

  4. What is the Jet Stream?
    The Jet Stream is a relatively narrow corridor of very strong winds near the tropopause.

          

  5. What does tertiary circulation in the atmosphere entail?Primary circulation entails global circulation - the mass movement of air all over the globe.

          

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