The following six (6) items consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below.
Statement I :
Geostrophic wind blows above a height of 600 metres, parallel to the isobars.
Statement II :
Geostrophic wind is the horizontal wind velocity, in which the Coriolis force balances the horizontal pressure force.
[amp_mcq option1=”Both the statements are individually true and Statement II is the correct explanation of Statement I” option2=”Both the statements are individually true but Statement II is not the correct explanation of Statement I” option3=”Statement I is true but Statement II is false” option4=”Statement I is false but Statement II is true” correct=”option1″]
– Coriolis Force (CF) acts perpendicular to the wind direction, to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
– In geostrophic balance, PGF and CF are equal in magnitude and opposite in direction (acting on the wind vector).
– Friction is negligible above the boundary layer, allowing geostrophic balance to be achieved.