Glossary of Solar Radiation Resource Terms

Other relevant glossaries


The following links allow you to move to the words beginning with that letter.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


Optical Depth - (technically known as the relative aerosol optical depth) usually considered to be synonymous with the airmass, is the approximate number of aerosols in a path through the atmosphere relative to the standard number of aerosols in a vertical path through a clean, dry atmosphere at sea level.


Orientation - the direction that a solar energy collector faces. The two components of orientation are the tilt angle (the angle the collector makes from the horizontal) and the aspect angle (the angle the collector makes from North).


Ozone Layer - the layer in the atmosphere with the most ozone, usually at an altitude of 25 km. Ozone is created from oxygen by ultraviolet radiation bombardment. Because ozone tends to absorb and block ultraviolet radiation, a substantial ozone layer reduces the risk of skin cancer.


The following links allow you to move to the words beginning with that letter.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z



Please send questions and comments to the webmaster

Disclaimer and copyright notice

Return to RREDC Home Page ( http://www.nrel.gov/rredc/ )