Abstract

High resolution measurements of atmospheric transmission of sunlight from space to altitudes of 12.2 km, 8.53 km, and 5.48 km made over Johnston Island are reported. The spectral region covered is 4.0–5.3 μm. Comparisons of the measured transmission with theoretically synthesized transmission curves are presented. It is shown that the sharp spectral features due to molecular line-by-line absorption can be predicted accurately while the modeling of the continuum absorption features needs further development. A discussion of the current models for CO2 and N2 continuum absorption is presented. An alternative mechanism is proposed for continuum absorption, which is based on the spectral properties of atmospheric van der Waals molecular complexes such as CO2·N2 and N2·N2 dimers.

© 1979 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Analysis of the fascode model and its H2O continuum based on long-path atmospheric transmission measurements in the 4.5–11.5-μm region

J.-M. Thériault, P. L. Roney, D. St.- Germain, H. E. Revercomb, R. O. Knuteson, and W. L. Smith
Appl. Opt. 33(3) 323-333 (1994)

Infrared collision-induced absorption by N2 near 4.3 μm for atmospheric applications: measurements and empirical modeling

Walter J. Lafferty, Alexander M. Solodov, Alfons Weber, Wm. Bruce Olson, and Jean-Michel Hartmann
Appl. Opt. 35(30) 5911-5917 (1996)

Temperature dependence of the absorption in the region beyond the 4.3-μm band head of CO2. 2: N2 and O2 broadening

C. Cousin, R. Le Doucen, C. Boulet, and A. Henry
Appl. Opt. 24(22) 3899-3907 (1985)

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 (10)

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

Equations (11)

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

Metrics

You do not have subscription access to this journal. Article level metrics 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