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TeachMeFinance.com - explain Solar spectrum Solar spectrum The term 'Solar spectrum' as it applies to the area of energy can be defined as ' The total distribution of electromagnetic radiation emanating from the sun. The different regions of the solar spectrum are described by their wavelength range. The visible region extends from about 390 to 780 nanometers (a nanometer isone billionth of one meter). About 99 percent of solar radiation is contained in a wavelength region from 300 nm (ultraviolet) to 3,000 nm(near-infrared). The combined radiation in the wavelength region from280 nm to 4,000 nm is called the broadband, or total, solar radiation'. Previous 5 Terms: Solar pond Solar power tower Solar Radiation Solar Resource Solar Sector Boundary (SSB) Next 5 Terms: Solar thermal collector Solar thermal collector, high temperature Solar thermal collector, low-temperature Solar thermal collector, medium-temperature Solar thermal collector, special About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.