Earth, however, is not moving at a constant velocity. Earth’s rotation on its axis and revolution around the Sun are accelerated motions, because the direction is constantly changing. Just as we perceive motion from the acceleration of the circular motion on a merry-go-round.
The Earth has an axial tilt of about 23.44° (23° 26’). The axis is tilted in the same direction throughout the solar year. However, as it orbits around the Sun, the Earth’s hemisphere that is tilted away from the Sun will gradually become tilted towards the Sun while moving on a near circular orbit, This effect is the main cause of the four seasons. The hemisphere that is tilted towards the Sun experiences more hours of sunlight each day.
The region north of the Tropic of Capricorn and south of the Tropic of Cancer is known as the Tropics. Therefore, it is the case that the Sun perpendicular appearance on the surface of the planet is confined and is in constant forward and backward movement between the two tropics.
The Sun is situated 150 million km (93 million miles) away from Earth and that it has a surface temperature of 6,000° Kelvin. The solar irradiance in Watt/m2 is the power density incident on Earth due to radiation from the sun. At the sun’s surface, the power density is that of a blackbody; a body that emits radiation energy uniformly in all directions per unit area.However It is therefore found that the radiation intensity reaching the Earth from the Sun is 1,366 Watt/m2. It is measured that the Thermosphere temperature varies between 5000 to 2,0000 Celsius depending on the Sun’s activity and the strength of the magnetic field force; where it is strongest, at the magnetic poles, the Temperature is 5000 Celsius, and where it is weakest at the mid region between the magnetic Poles (i.e. the magnetic equator) it reaches 2,0000Celsius. It is therefore found that the radiation intensity that reaches the Earth from the Thermosphere is 2,412 Watt/m2.
As the Sun is ejecting mass-energy of heavy particles such as electrons and protons, the magnetic field at the Thermosphere layer shields such energetic bodies. The trapped, full of kinetic energy, protons, have no place to go but to spiral along the magnetic field lines while they are travelling between the two magnetic poles. As protons encounter regions of stronger magnetic field where field lines, they converge. Their spiral-radius is shortened and their speed is slowed down. The protons could reverse paths at the magnetic poles.
This could cause the protons tobounce back and forth between the two magnetic poles.
It also keeps the thermal radiation, coming from the Thermosphere, to gradually decay above the sky of a specific region of Earth’s surface for the rest of the day even after sunset.
This makes the region of magnetic equator to always maintain the highest temperature on the surface of the planet and for the regions of the magnetic poles to maintain the lowest temperature. The trapped, oscillating Sun’s protons between the two magnetic poles, day and night, keeps the Thermosphere thermal radiation uninterrupted, though decaying over nights. Such a phenomenon keeps the Earth surface safe from sharp drop in temperature at nights. If it had not magnetic field to trap the protons, the Earth’s surface would have been bombarded during the day with continuous flow protons and the day temperature would have not been different from the moon which has no magnetic field and a day temperature of 123o Celsius. Equally at nights, if Earth had no magnetic field to trap the protons and keep them travelling between its two magnetic poles, colliding with one another and generating thermal radiation to keep a warm surface, the Earth temperature at nights would have not been different from the moon at nights where the temperature reaches -233o Celsius.
This makes the region of magnetic equator to always maintain the highest temperature on the surface of the planet and for the regions of the magnetic poles to maintain the lowest temperature. The trapped, oscillating Sun’s protons between the two magnetic poles, day and night, keeps the Thermosphere thermal radiation uninterrupted, though decaying over nights. Such a phenomenon keeps the Earth surface safe from sharp drop in temperature at nights. If it had not magnetic field to trap the protons, the Earth’s surface would have been bombarded during the day with continuous flow protons and the day temperature would have not been different from the moon which has no magnetic field and a day temperature of 123o Celsius. Equally at nights, if Earth had no magnetic field to trap the protons and keep them travelling between its two magnetic poles, colliding with one another and generating thermal radiation to keep a warm surface, the Earth temperature at nights would have not been different from the moon at nights where the temperature reaches -233o Celsius.
The collapse of Earth’s magnetic field in the western and southern hemispheres leads to an increase in the Protons speed and spiral-radius motion around the magnetic force lines. More chances are created for the Protons to collide with one another at a higher speed. The impact of stronger collisions results in higher thermal energy reaching Earth’s surface;Global Warming is thus observed.
Atmospheric circulation driven by uneven heating of the Earth by the Sun
Global Warming
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Climate Exchange
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The magnetic field has weakened in the western hemisphere on average by 10% between the years 1850 and 2000. Additional collapse of 5% is added in the last decade. The weaker the field, the longer spiral-path around the magnetic field force lines, will the protons oscillate between the two magnetic poles. The longer protons travel, the more probability to collide with one another in the Thermosphere layer. The Thermosphere layer’s temperature will rise above the minimum/ maximum marks of +500/ +2,000 degrees Celsius. A higher thermal energy will reach the surface of the Earth, causing overall increase in average temperature. | The magnetic pole is moving away from Canada towards Siberia at a much higher rate than last century. The whole magnetic field tilts accordingly and brings the Thermosphere temperature map to tilt along. This results in shifting of the Temperature Belts on the surface of the Earth, causing Climate Exchange where regions will experience change of Temperature according to the Thermosphere temperature map. |
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