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5 Written questions

5 Matching questions

  1. Isotach?
  2. Describe the Subpolar Low Pressure area.
  3. Describe the Equatorial Low Pressure.
  4. What do low pressure cells tend to do?
  5. Describe the Coriolis Effect.
  1. a Low pressure cells tend to ascend and converge.
  2. b Equal wind speed.
  3. c The Equatorial Low Pressure area occurs along the Intertropical Convergence Zone (ITCZ) and is the area where the Trade Winds and doldrums occur.
  4. d The Subpolar Low Pressure area consists of the Aleutian Low, the Icelandic Low, and the Polar Front.
  5. e
    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.

5 Multiple choice questions

  1. An isopleth is a line on a weather chart that represents an equal value of some quantity.
  2. Doldrums refers to a broad east-west belt of light winds that occur along the equator where the Trade Winds from the northern and southern hemispheres converge.
  3. The four factors that affect atmospheric circulation are as follows: the Coriolis Effect, gravity, friction forces, and changes in air pressure.
  4. Equal rainfall.
  5. Equal pressure.

5 True/False questions

  1. Describe land-sea breezes.
    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. What are the rules for isopleths?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.


  3. Describe the Polar High Pressure area.The Polar High Pressure consists of polar easterlies and the Antarctic High pressure area.


  4. What does tertiary circulation in the atmosphere entail?Tertiary circulation is the movement of local high and low pressure cells, and parcels of air will cause local weather patterns, such as the weather patterns of a coastal city that is influenced by the body of water nearby.


  5. Thermal equator?An isoline connecting all points of highest mean temperature.


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