Abstract

Nephelometers used in NOAA’s Geophysical Monitoring for Climatic Change program are very sensitive instruments for measuring the scattering extinction coefficients of aerosols and gases. These instruments are calibrated by filling them with gases having known scattering coefficients, such as air, carbon dioxide, and dichlorodifluoromethane (CCl2F2). Because of its sensitivity, the nephelometer can be used to study the scattering properties of these gases. In these experiments the volume Rayleigh scattering of CCl2F2 was found to be 15.3 times that of air, and the volume scattering of argon was found to be 0.879 times that of air. Furthermore, the index of refraction of argon has been deduced from these measurements and is in excellent agreement with published values. A new depolarization factor of CCl2F2 deduced from these measurements is 0.048.

© 1979 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Volume scattering ratios determined by the polar and the integrating nephelometer: a comparison

E. M. Patterson, B. A. Bodhaine, A. Coletti, and G. W. Grams
Appl. Opt. 21(3) 394-397 (1982)

Measurement of the lidar ratio for atmospheric aerosols with a 180° backscatter nephelometer

Sarah J. Doherty, Theodore L. Anderson, and Robert J. Charlson
Appl. Opt. 38(9) 1823-1832 (1999)

Polar nephelometer for atmospheric particulate studies

M. Z. Hansen and W. H. Evans
Appl. Opt. 19(19) 3389-3395 (1980)

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

Tables (5)

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

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