What is global solar radiation?
The solar radiation that reaches the Earth’s surface without being diffused is called direct beam solar radiation. The sum of the diffuse and direct solar radiation is called global solar radiation. Atmospheric conditions can reduce direct beam radiation by 10% on clear, dry days and by 100% during thick, cloudy days.
What are the 3 types of solar radiation?
The three relevant bands, or ranges, along the solar radiation spectrum are ultraviolet, visible (PAR), and infrared. Of the light that reaches Earth’s surface, infrared radiation makes up 49.4% of while visible light provides 42.3% 9. Ultraviolet radiation makes up just over 8% of the total solar radiation.
What is irradiance in solar energy?
Irradiance is a measurement of solar power and is defined as the rate at which solar energy falls onto a surface. The unit of power is the Watt (abbreviated W). In the case of solar irradiance, we usually measure the power per unit area, so irradiance is typically quoted as W/m², that is, Watts per square meter.
What is solar radiation Wikipedia?
Electromagnetic energy emitted from the sun. View on Wikipedia.
Where is solar radiation highest on earth?
The equator
The sun’s rays do not strike the Earth’s surface as directly at the North Pole; they are less focused. The equator receives the most solar radiation in a year.
What is an example of solar radiation?
Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation is one way to transfer heat.
In which month solar radiation is maximum?
2.5. The maximum annual value during the three-decade study period occurred in 1985 when it reached 7181.12 MJ/m2, whereas the minimum value of 6604.48 MJ/m2 occurred in 1998. July has the largest monthly global radiation, which has reached 803.64 MJ/m2, more than two times that of December and January.
How much solar radiation reaches the Earth?
The incoming solar radiation is known as insolation. The amount of solar energy reaching the Earth is 70 percent. The surface of the Earth absorbs 51 percent of the insolation. Water vapor and dust account for 16 percent of the energy absorbed.
What are 4 types of radiation from the Sun?
All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation is one way to transfer heat.