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Q: Which of the following statements regarding Atmospheric Circulation and Weather System is false ?
  • A. The Coriolis force deflects the wind to the left direction in the southern hemisphere
  • B. The pressure gradient force is perpendicular to an isobar
  • C. The pressure gradient is weak where the isobars are close to each other and is strong where the isobars are apart
  • D. The wind circulation around a high is called anti cyclonic circulation
Correct Answer: Option C - The force imposed due to rotational speed of earth is termed as coriolis force, in effect of this the wind deflects rightward in northern hemisphere and deflects leftward in southern hemisphere. The coriolis force acts perpendicular to pressure gradient while pressure gradient force is at perpendicular in reference to isobars. And this pressure gradient is directly proportional to speed of wind. The wind circulation around a high is called anti cyclonic circulation.
C. The force imposed due to rotational speed of earth is termed as coriolis force, in effect of this the wind deflects rightward in northern hemisphere and deflects leftward in southern hemisphere. The coriolis force acts perpendicular to pressure gradient while pressure gradient force is at perpendicular in reference to isobars. And this pressure gradient is directly proportional to speed of wind. The wind circulation around a high is called anti cyclonic circulation.

Explanations:

The force imposed due to rotational speed of earth is termed as coriolis force, in effect of this the wind deflects rightward in northern hemisphere and deflects leftward in southern hemisphere. The coriolis force acts perpendicular to pressure gradient while pressure gradient force is at perpendicular in reference to isobars. And this pressure gradient is directly proportional to speed of wind. The wind circulation around a high is called anti cyclonic circulation.