Consider the following statements: I. At the equator, the Coriolis force is zero and here the winds blow perpendicular to the isobars. II. The Coriolis force is directly proportional to the angle of latitude. III. The Coriolis force and the resultant wind do not blow parallel to the isobars at higher latitudes. Which of the statements given above are correct?
I and II only
Statement I: Correct. At the equator, the Coriolis force is zero. Therefore, the pressure gradient force acts without Coriolis deflection, and winds tend to blow perpendicular to the isobars.
Statement II: Correct. The Coriolis force increases with an increase in latitude. It is zero at the equator and becomes maximum at the poles.
Statement III: Incorrect. At higher latitudes, the Coriolis force becomes significant and balances the pressure gradient force. Under such conditions, the resultant or geostrophic wind tends to blow parallel to the isobars.
Therefore, Statements I and II only are correct.
Similar Questions
- Snow, sleet and hail are the forms of
- Nisarga, Gati, Nivar, Tauktae and Yaas are names of
Match List-I with List-II and select the correct answer using the code given below the Lists:
List I
(Low-Latitude Climate)
List I
(Characteristic)
A. Wet Equatorial 1. Uniform temperatures, mean near 27°C B. Monsoon and trade wind coastal 2. Marked temperature cycle with very high temperature before the rainy season C. Wet-dry tropical 3. Temperatures show an annual cycle with a high temperature in the high-Sun season Strong temperature cycle. with intense temperature during the high-Sun season D. Dry tropical 4. Strong temperature cycle, with intense temperature during the high-Sun season
Which one of the following can be said to be essentially related to ‘Polar Front Theory’?
Consider the following statements about Roaring Forties:
1) There are strong Westerly winds found in the oceans of the Southern Hemisphere.
2) The strong east to west air currents are caused by the combination of air being displaced from the equator towards the South Pole and the earth’s rotation and abundance of landmasses to serve as windbreaks.
Which of the statements given above is/are correct?
Consider the following characteristics of a tropical cyclone:
1. A warm sea temperature of > 26 0C
2. High relative humidity of atmosphere at a height of > 700 m
3. Atmospheric instability
The above mentioned characteristics are associated with which one of the following cycles of its development?
Which one of the following pairs of properties of typical air masses is correct?
Air Mass Source Region A. Maritime Equatorial Warm oceans in the equatorial zone B. Maritime Polar Warm oceans in the tropical zone C. Continental Tropical Less warm oceans in the tropical zone D. Continental Polar Moist oceans in the polar zone Rain shadow effect is associated with
Match List I with List II and select the correct answer using the code given below the Lists:
List I
(Cloud)
List II
(Characteristic)
A.
Cirrus
1.
Rain giving
B.
Stratus
2.
Feathery appearance
C.
Nimbus
3.
Vertically growing
D.
Cumulus
4.
Horizontally spreading
Which of the following statements concerning temperature is/are correct?
1) In winter season isotherms in Northern Hemisphere are more or less circular on continents
2) Isotherms are parallel to latitude in Southern Hemisphere in oceans
3) Minimum temperature during winter is recorded in North Canada
Select the correct answer using the code given below:
Important Questions from Climatology
In which of the following atmospheric layers ozone gas is concentrated?
Ozone layer depletion is a major phenomenon in :
By which layer of the atmosphere the ultra-violet rays are absorbed ?
______ is the uppermost layer of the atmosphere.
Which of the following is correct about insolation?
I. It influences the distribution of temperature.
II. It increases from the equator towards the poles.
