Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What does a Sun photometer measure?

April 26, 2017measure photometer Sun

0

Posted

What does a Sun photometer measure?

1 Answer

0

Posted

A SUN PHOTOMETER measures the sunlight in a narrow spectral band that passes through the Earth’s atmosphere. If the EXTRATERRESTRIAL CONSTANT for a particular Sun photometer is known, a Sun photometer can measures the transmission (T) of sunlight through the atmosphere. The clearer the sky, the higher the transmission of sunlight. AEROSOLS such as smoke and dust absorb or scatter sunlight. Therefore, aerosols reduce the sunlight transmitted through the atmosphere.