Abstract

The total absorption ∫Aν has been measured for the water vapor bands at 6.3, 3.2, 2.7, 1.87, 1.38, 1.1, and 0.94μ under simulated atmospheric conditions. The water vapor absorber concentrations studied ranged from 0.004 to 3.8 cm of precipitable water. Nitrogen was added to give total pressures up to atmospheric; the effects of nitrogen and oxygen on total absorption were found to be similar. The experimental data can be satisfactorily represented by two types of empirical relations:

  • (1) For small values of total absorption,

    Aνdν=cw12(P+p)k;

  • (2) For large values of total absorption,

    Aνdν=C+DLogw+KLog(P+p),

where w is the H2O absorber concentration, p is the H2O partial pressure, and P is the total pressure. Values of the empirically determined constants c, k, C, D, and K are given for each of the spectral regions of characteristic absorption. The results are compared with those of other experimentalists.

© 1956 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Infrared Transmission of Synthetic Atmospheres.* I. Instrumentation

J. N. Howard, D. E. Burch, and Dudley Williams
J. Opt. Soc. Am. 46(3) 186-190 (1956)

Total Absorptance of Water Vapor in the Near Infrared

Darrell E. Burch, Wilbur L. France, and Dudley Williams
Appl. Opt. 2(6) 585-589 (1963)

The Pressure Dependence of the Absorption by Entire Bands of Water Vapor in the Near Infrared*

John N. Howard and Robert M. Chapman
J. Opt. Soc. Am. 42(6) 423-426 (1952)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (3)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription