When surface cold air pushes far equatorward and warm air pushes far poleward ________.
A) there are few Rossby waves
B) the Rossby waves have great amplitude
C) the westerlies reverse flow and become easterlies
D) the polar front is weakest
E) the subtropical high arrives overhead

Question

Quizplus · Accepted Answer

When surface cold air pushes far equatorward and warm air pushes far poleward, it creates a strong temperature gradient. This temperature gradient generates Rossby waves, which have a greater amplitude (height) as the temperature difference becomes greater.

When Surface Cold Air Pushes Far Equatorward and Warm Air