continuum absorption

From Glossary of Meteorology
A region of continuous spectral absorption by a gas that shows no apparent line structure.

Continuum absorption is explained semi-empirically as the overlap of absorption due to many absorption lines with centers far from the continuum region. A good example occurs in the 10- μm window region, where continuum absorption by water vapor can be particularly important.
Compare band absorption, line absorption.

Copyright 2024 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.