Which of the following is/are correct inference/inferences from isothermal maps in the month of January ? 1. The isotherms deviate to the north over the ocean and to the south over the continent. 2. The presence of cold ocean currents, Gulf Stream and North Atlantic Drift make the North Atlantic Ocean colder and the isotherms bend towards the north. Select the answer using the code given below :
A
1 only
Correct answer
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
Explanation
Statement 1 is correct: in January (winter in the Northern Hemisphere) the oceans are warmer than the land, so isotherms bend north over the oceans and south over the continents. Statement 2 is wrong: the Gulf Stream and the North Atlantic Drift are warm currents; they make the North Atlantic warmer, which is why the isotherms bend north there. So 1 only.
Climatology & Atmosphere