Auringonsäteilyä

Auringonsäteilyä, or solar radiation, refers to the electromagnetic radiation emitted by the Sun. This radiation encompasses a wide spectrum of wavelengths, including visible light, ultraviolet (UV) radiation, and infrared (IR) radiation. The Sun's energy is the primary source of power for most life on Earth and drives many atmospheric and oceanic processes.

The intensity of auringonsäteilyä that reaches Earth's surface varies depending on factors such as the angle of the Sun, atmospheric conditions, and geographical location. The Earth's atmosphere absorbs and scatters some of this radiation, with ozone playing a crucial role in absorbing harmful UV rays.

Visible light from the Sun is what allows us to see. Ultraviolet radiation, while essential for vitamin D production in humans, can also cause sunburn and skin damage with excessive exposure. Infrared radiation is perceived as heat.

Auringonsäteilyä is harnessed for various purposes, most notably through solar energy technologies. Solar panels convert sunlight into electricity, while solar thermal systems use its heat for water heating or other applications. Understanding auringonsäteilyä is fundamental to fields like meteorology, climatology, and renewable energy.