Why does the Northern Hemisphere receive more sunlight than the southern hemisphere and sun hotter in the Northern Hemisphere?
For geographic purposes, the Earth is divided into a northern and southern hemisphere by an imaginary ring called the equator. Whichever hemisphere is more directly facing the Sun during the course of the Earth's orbit will receive more of the Sun's energy for more of the day. Therefore, the sun is generally lower in the sky in the Northern Hemisphere, and its rays strike the Earth at the smallest angle. Because the sun's rays more spread out as they hit the Northern Hemisphere, the amount of energy that hits any given spot is less.
The combination of more direct rays of sunlight and more hours of daylight causes the hemisphere tilted toward the sun to receive more solar radiation and to have warmer temperatures. When the Northern Hemisphere is tilted toward the sun, latitudes between the equator and 90°N are experiencing summer. The tilt affects how the sunlight hits the Earth along it's orbit. During the Southern hemisphere summer, the southern hemisphere is tilted towards the Sun so the sunlight hits the Earth more directly and we have hotter, longer days. The Northern Hemisphere receives the maximum intensity of the sun's rays, while the angle of sunlight decreases in the Southern Hemisphere. This is simply a function of the angle of solar rays striking the Earth. At high latitudes, solar radiation is spread across a much larger area. This means any given location in the North has far less solar input compared to areas in the Lower48. Frequently suggested causes include differences in seasonal insolation, the larger area of tropical land in the NH, albedo differences between the Earth's Polar Regions, and northward heat transport by the ocean circulation. For geographic purposes, the Earth is divided into a northern and southern hemisphere by an imaginary ring the equator. Whichever hemisphere is more directly facing the Sun during the course of the Earth's orbit will receive more of the Sun's energy for more of the day. The Northern Hemisphere receives the maximum intensity of the sun's rays, while the angle of sunlight decreases in the Southern Hemisphere. For part of our orbit the northern half of Earth is tilted toward the Sun. This is summer in the northern hemisphere; there are longer periods of daylight, the Sun is higher in the sky, and the Sun's rays strike the surface more directly, giving us warmer temperatures. The northern hemisphere is tilted toward the sun, and enjoys longer days and more sunlight during the day. The southern hemisphere is tilted away from the Sun, hidden in the shadow of the Earth for more than 12 hours every day, and when the Sun is shining it receives less sunlight per unit area. The earth is actually closer to the sun, and the sun is thus brighter, during January. It appears dimmer at the northern latitudes because it lies lower in the sky, and its rays must pass through a greater thickness of atmosphere.
We find that the interhemispheric temperature difference is predominantly caused by meridional heat transport in the oceans, with an additional contribution from the albedo difference between Antarctica and the Arctic. The combination of more direct rays of sunlight and more hours of daylight causes the hemisphere tilted toward the sun to receive more solar radiation and to have warmer temperatures. The northern hemisphere is tilted toward the sun, and enjoys longer days and more sunlight during the day. The southern hemisphere is tilted away from the Sun, hidden in the shadow of the Earth for more than 12 hours every day, and when the Sun is shining it receives less sunlight per unit area. For geographic purposes, the Earth is divided into a northern and southern hemisphere by an imaginary ring called the equator. Whichever hemisphere is more directly facing the Sun during the course of the Earth's orbit will receive more of the Sun's energy for more of the day. During the summer, the sun's rays hit the Earth at a steep angle. The light does not spread out as much, thus increasing the amount of energy hitting any given spot. Also, the long daylight hours allow the Earth plenty of time to reach warm temperatures. The Earth's tilt causes the Southern Hemisphere (SH) to lean towards the Sun during SH summer. Meanwhile, it is winter in the Northern Hemisphere (NH) which leans away from the Sun. Because of the difference in the tilting towards the axis, the phenomena of experiencing the solstice occur. The northern hemisphere experiences summer solstice when the North Pole is tilted towards the sun. The southern hemisphere experiences winter solstice when the South Pole is tilted away from the sun. The main reason is the uneven distribution of the continents and oceans around the globe. The Northern Hemisphere contains more land, while the Southern Hemisphere has more oceans. During July the northern half of our planet tilts toward the sun, heating up the land, which warms up easier than the oceans.
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