That is because the Earth is rotating. The coriolis effect puts a spin on the moving air. The following video is about storms, but the principle is explained.
Because the earth rotates and winds blowing north or south are moving east at the velocity of the equator. As it moves away from the equator the ground speed is lower than at the equator, so the winds deflect to the east.
the rotation of the earth curves from left to right
north pole
FROM the north. Winds take their names from their origin.
north
The trade winds are located 30 degrees north and 30 degrees south of the equator.
polar easterlies
Planetary winds are any winds that occur because of solar radiation. They are in direct correlation to the rotation of the earth. Planetary winds do not blow directly north or south.
Planetary winds are any winds that occur because of solar radiation. They are in direct correlation to the rotation of the earth. Planetary winds do not blow directly north or south.
north pole
Everywhere is south from the north pole. Due to the rotation of the earth the majority of the winds follow the weather from west to east. The further south from the north pole, many other factors come into play that have a direct impact on the direction of the winds due to changes in the earth's profile, the flora, the variation of the surface temperatures, etc..
is warmer then the north and the south poles
Coriolis force causes global winds to curve. As winds move north or south, they are deflected due to the rotation of the Earth. They curve to the west.
Then the earth would not rotate.
Trade winds!
From North to South.
South winds come from the south, or in other words, they blow in a direction from south to north.
FROM the north. Winds take their names from their origin.
Due to the Coriolis Force (as a consequence of the earth's rotation)