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On some properties of the water-vapor spectrum and their relations to atmospheric radiation

Elsasser, W. M. (1937) On some properties of the water-vapor spectrum and their relations to atmospheric radiation. Monthly Weather Review, 65 (9). pp. 323-326. ISSN 0027-0644.

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In the present paper we investigate the physical consequences of the fact that the water vapor spectrum in the far infrared consists of a large number of narrow lines. It will be shown that the average width of these lines is much smaller than the intervals which could be resolved with the spectrographs used hitherto. For thick layer of vapor complete absorption is nevertheless reached in most parts of the spectrum. It can be shown that under such circumstances the total absorption is approximately proportional to the air pressure in the absorbing layers and is inversely proportional to the square root of the absolute temperature. There is an additional variation with temperature of a more complex type which cannot yet be quantitatively evaluated from the available measurements, but it is probably not very large.

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Additional Information:© 1937 National Oceanic and Atmospheric Administration (NOAA). Received July 1937.
Issue or Number:9
Record Number:CaltechAUTHORS:ELSmwr37
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11437
Deposited By: Archive Administrator
Deposited On:14 Aug 2008 22:50
Last Modified:03 Oct 2019 00:19

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