polar easterlies
Meteorological term for the prevailing winds blowing from the polar high-pressure areas toward the subpolar low-pressure belts. Used in weather and climate contexts.
The polar easterlies have a significant impact on the climate of high-latitude regions.
貿易風 (trade winds) are easterly winds in the tropics, whereas 極東風 are easterly winds in polar regions.
Compound of 極 (きょく, 'pole') + 東風 (とうふう, 'easterly wind'). The reading とうふう for 東風 is a Sino-Japanese on'yomi combination.