polar easterlies
Air sinks at 30 degrees, then moves south along the surface. At about 60 degrees, air rises and then moves north toward the equator. At 30 degrees, the air sinks again and the cycle starts all over.
The polar easterlies develop near the poles, around 60-90 degrees latitude in both the Northern and Southern Hemispheres. They are cold prevailing winds that blow from the east to the west. These winds are formed as cold, dense air from the polar regions sinks and moves towards lower latitudes.
On March 21, the subsolar point is located at the Tropic of Cancer at approximately 23.5 degrees north latitude. This is because the tilt of the Earth's axis causes the Sun to be directly overhead at either the Tropic of Cancer (23.5 degrees North) on the March equinox or the Tropic of Capricorn (23.5 degrees South) on the September equinox.
When a volcanic island chain is formed, the tectonic plate moves over a hotspot in the Earth's mantle. The hotspot remains stationary while the plate moves, resulting in a series of volcanic islands forming in a line as the plate moves over the hotspot.
The Coriolis effect is the apparent curvature of global winds, ocean currents, and everything else that moves freely across the Earth's surface. The curvature is due to the rotation of the Earth on its axis. ... Between thirty and sixty degrees latitude, the winds that move toward the poles appear to curve to the east.
You can find the Antarctic Circle at about 66.5628° S. Because the earth wobbles, the circle moves with it.
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The Antarctic Circle is a line of latitude -- which moves, according to the Earth's wobble. As of 10 March 2016, it runs 66°33′46.1″ as a line of latitude and crosses all degrees of E and W longitude on Earth.
Air sinks at 30 degrees, then moves south along the surface. At about 60 degrees, air rises and then moves north toward the equator. At 30 degrees, the air sinks again and the cycle starts all over.
Many deserts are found in bands along 30 degrees latitude north and 30 degrees latitude south (between the red lines on the map). Some deserts located by mountains and are caused by the "rainshadow" effect. As air moves up over a mountain range, it gets cold and loses the ability to hold moisture -- so it rains or snows. When the air moves down the other side of the mountain, it gets warmer. Warm air can hold lots of moisture, so it doesn't rain as much, and a desert is formed.
The 30 degree latitude area is at the high pressure region developed by the sinking air from the Hadley Cell created by the low pressure rising air at the equator. Winds move from high to low pressure areas. The doldrums are located at the equator, this is a low pressure area. When the air sinks at the 30 degree latitude air moves away from the 30 toward the equator and 60 degree latitudes. Since air does not move toward the 30, there is no way to bring the maritime air masses to those desert areas.
In the Northern Hemisphere, the angle of Polaris above the horizon corresponds directly to the latitude of the location. Specifically, at the North Pole (90°N), Polaris is directly overhead at an angle of 90 degrees, while at the equator (0° latitude), Polaris is on the horizon at 0 degrees. Thus, as one moves northward, the angle of Polaris increases, reflecting the increase in latitude.
The polar easterlies develop near the poles, around 60-90 degrees latitude in both the Northern and Southern Hemispheres. They are cold prevailing winds that blow from the east to the west. These winds are formed as cold, dense air from the polar regions sinks and moves towards lower latitudes.
Assuming the hour hand moves steadily for the entirety of the hour, the angle formed by the hour and minute hand would be 55 degrees.
Hour hand moves 30 degrees, minute hand moves 360 degrees.
Between June 21 and December 21, it moves from 23.5 north to 23.5 south ... 47 degrees of latitude. Then during the other 6 months, it covers the 47 degrees to return back north. But the rate at which it covers this range is not constant. The speed is "sinusoidal" ... slowest at the ends, and fastest in the middle.
On March 21, the subsolar point is located at the Tropic of Cancer at approximately 23.5 degrees north latitude. This is because the tilt of the Earth's axis causes the Sun to be directly overhead at either the Tropic of Cancer (23.5 degrees North) on the March equinox or the Tropic of Capricorn (23.5 degrees South) on the September equinox.