UO Solar Radiation Monitoring Laboratory

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SRML Glossary — "O"

Special thanks to NREL

We'd like to thank the National Renewable Energy Laboratory for making available to us their glossary, which is the basis of ours. We've edited and reformatted it, and linked it to our Web pages, and we'll continue to add our own specialized terms, illustrations, and examples. Please note that the Solar Radiation Monitoring Laboratory takes full responsibility for any inaccuracies that may occur.

Links to other glossary sections:

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.
   
Links to other glossary sections:

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

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© 2000, UO Solar Radiation Monitoring Laboratory.
Last revised: December 11, 2000.


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