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At a distance, D, from the sun the same amount of power is spread over a much wider area so the solar radiation power intensity is reduced.
How does distance affect solar radiation?
The law states that a given quantity or intensity is inversely proportional to the square of the distance from the source. For example, the intensity of solar radiation on the surface of Mercury is nearly nine times that of Earth's, but Mercury is only around three times closer to the Sun.
How does the sun’s radiation vary?
Because the angle of radiation varies depending on the latitude, surface temperatures on average are warmer at lower latitudes and cooler at higher latitudes (even though higher latitudes have more hours of daylight during the summer months).
How much does the radiation from the sun vary?
Over the course of one solar cycle (one 11-year period), the Sun's emitted energy varies on average at about 0.1 percent. That may not sound like a lot, but the Sun emits a large amount of energy – 1,361 watts per square meter. Even fluctuations at just a tenth of a percent can affect Earth.
Why does sun intensity vary?
The variation in intensity results because the angle at which the sun's rays hit the Earth changes with time of year. … Similarly, the sun's energy spreads out over differing geographic areas when it reaches Earth's surface. It is more concentrated during our summer months when the sun is higher in the sky.
How distance from the Sun affects Earth’s atmosphere?
The solar cycle can have effects on Earth's climate. For example, the sun's ultraviolet light splits oxygen in the stratosphere and strengthens Earth's protective ozone layer. During the solar minimum, there are low amounts of UV rays, which means that Earth's ozone layer is temporarily thinned.
How does a Planets distance from the Sun affect the amount of solar radiation the planet receives?
Radiation from the Sun is lessened by the inverse square law as it reaches further and further away from the Sun. So the further away that a planet is from the Sun then the less radiation it receives.
Does radiation from the sun affect Earth’s weather?
Researchers have shown that UV radiation affects climate through direct heating and the production and destruction of ozone in the stratosphere, which then leads to regional effects at Earth's surface through a complex chain of mechanisms.
What causes sun’s radiation?
In addition to the sun's angle, atmospheric conditions can affect radiation levels. Cloud cover, air pollution and the hole in the ozone layer all alter the amount of solar radiation that can reach the surface. These factors all cause typical radiation levels to differ.
How distance from the sun affects Earth’s atmosphere?
The solar cycle can have effects on Earth's climate. For example, the sun's ultraviolet light splits oxygen in the stratosphere and strengthens Earth's protective ozone layer. During the solar minimum, there are low amounts of UV rays, which means that Earth's ozone layer is temporarily thinned.
