Solar radiation

Solar radiation refers to the electromagnetic radiation emitted by the Sun. It is a primary source of energy for life on Earth and drives many of the planet's climatic and weather patterns. Solar radiation is composed of different types of energy including visible light, ultraviolet light, and infrared energy.

Composition

Solar radiation is composed of different types of energy. The most significant of these are:

• Visible light: This is the portion of the electromagnetic spectrum that is visible to the human eye. It accounts for about 43% of the total solar radiation that reaches the Earth's surface.
• Ultraviolet light: This is a type of electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays. It accounts for about 8% of the total solar radiation that reaches the Earth's surface.
• Infrared energy: This is a type of electromagnetic radiation with wavelengths longer than those of visible light. It accounts for about 49% of the total solar radiation that reaches the Earth's surface.

Effects on Earth

Solar radiation has a significant impact on the Earth's climate and weather patterns. It is the primary driver of the Earth's climate system, influencing temperature, precipitation, and wind patterns. Solar radiation also plays a crucial role in the process of photosynthesis, which is essential for life on Earth.

Measurement

The measurement of solar radiation is an important field of study in meteorology, climatology, and solar energy. Instruments used for measuring solar radiation include pyranometers, pyrheliometers, and spectroradiometers.

See also

• Solar constant
• Solar cycle
• Solar flare
• Solar wind

External links

• National Renewable Energy Laboratory: Solar Resource Data

Solar radiation Resources
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