- Solar elevation. Where the sun sits in the sky determines the level of UV radiation reaching us. ...
- Ozone. ...
- Cloud cover. ...
- Ground surface reflectivity. ...
- Altitude. ...
- Aerosols and pollutants. ...
- Direct and diffuse UV.
What are the five factors that affect how much solar radiation the Earth receives?
Cloud cover, air pollution, latitude of a location, and the time of the year can all cause variations in solar radiance at the Earth’s surface. The amount of energy reaching the surface of the Earth every hour is greater than the amount of energy used by the Earth’s population over an entire year.
What factors affect the solar energy received?
Latitude, climate, and weather patterns are major factors that affect insolation—the amount of solar radiation received on a given surface area during a specific amount of time. Locations in lower latitudes and in arid climates generally receive higher amounts of insolation than other locations.
Which are the factor that determine the amount of solar radiation?
several factors such as altitude, terrain, air quality, cloud cover, vegetation of the region etc . collectively determine the net solar radiation received by a particular area which can harnessed by solar cells or solar panels to produce electricity.
What are the two basic ways to measure solar radiation?
What are the two basic ways to measure solar radiation? Explanation: Thee two basic ways to measure solar radiation are via ground-based instruments and satellite measurements . Anemometer is an instrument used to measure wind speed.
What is the value of solar constant?
The value of the constant is approximately 1.366 kilowatts per square metre . The “constant” is fairly constant, increasing by only 0.2 percent at the peak of each 11-year solar cycle.
What has the greatest effect on climate?
The main driver of climate change is the greenhouse effect . Some gases in the Earth’s atmosphere act a bit like the glass in a greenhouse, trapping the sun’s heat and stopping it from leaking back into space and causing global warming.
Why is solar radiation increasing?
Since the late 1970s, the amount of solar radiation the sun emits, during times of quiet sunspot activity , has increased by nearly . ... Since the late 1970s, the amount of solar radiation the sun emits, during times of quiet sunspot activity, has increased by nearly .
Can you emit solar radiation?
Any body at any temperature, including the human body, emits radiation . This is because it also absorbs energy from its environment (e.g. from the sun) and without emitting this energy back it would heat up infinitely. This emission is mainly long wavelength infrared (heat) radiation.
What factors affect radiation?
Radiation dose to the patient is influenced by many factors, such as the nature and complexity of the procedure, patient, prior radiation exposure, operator, and fluoroscopic equipment . In this section, we focus on how the procedure and patient may affect radiation dose.
How is solar radiation responsible for wind?
Because of the solar energy (incoming short wave radiation), earth surface heats up . Air near the ground tends to gain heat from the earth surface. When air is heated, it expands and starts to rise. When air rises pressure decrease at the surface.
What are the 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 the main advantage of sunshine recorder?
What is the main advantage of sunshine recorder? Explanation: The main advantage of a sunshine recorder is that it is inexpensive . However, it is less accurate as well. Also, it is not as sophisticated as pyranometers and pyrheliometers.
What are the instruments for measuring solar radiation and sunshine?
A pyrheliometer is used to measure direct solar radiation from the sun and its marginal periphery. To measure direct solar radiation correctly, its receiving surface must be arranged to be normal to the solar direction.
What is solar radiation sensor?
Solar radiation sensors are also known as pyranometers . A type of actinometer, these devices are used for measuring broadband solar irradiance as well as solar radiation flux density, which means that they measure the power of the light and heat from the sun. ... Pyranometers detect both direct and diffuse radiation.
What can change the solar constant?
The solar constant actually varies by +/-3% because of the Earth’s slightly elliptical orbit around the Sun. The Sun-Earth distance is smaller when the Earth is at perihelion (first week in January) and larger when the Earth is at aphelion (first week in July).
