OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 9, Iss. 8 — Aug. 1, 1970
  • pp: 1789–1797

The Remote Detection of Clear Air Turbulence by Infrared Radiation

R. W. Astheimer  »View Author Affiliations


Applied Optics, Vol. 9, Issue 8, pp. 1789-1797 (1970)
http://dx.doi.org/10.1364/AO.9.001789


View Full Text Article

Enhanced HTML    Acrobat PDF (2330 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Clear air turbulence (CAT) is frequently associated with horizontal temperature gradients of the atmosphere. An instrument has been developed for detecting such gradients remotely by sensing the infrared radiation emitted by the carbon dioxide in the atmosphere. Three of these instruments have been installed on commercial jet aircraft, to evalute this technique for providing advance warning of CAT. Many light turbulence encounters have been detected as much as 80 miles (130 km) (8 min) in advance. A high false alarm rate was experienced because of temperature gradients not associated with turbulence. No severe turbulence has been encountered to date. It is hoped that the temperature effects associated with severe turbulence will be large enough to permit establishing higher alarm threshold levels which will substantially reduce the false alarm rate. Future plans include evaluation of a vertical scan mode for detection of temperature inversions.

© 1970 Optical Society of America

History
Original Manuscript: January 15, 1970
Published: August 1, 1970

Citation
R. W. Astheimer, "The Remote Detection of Clear Air Turbulence by Infrared Radiation," Appl. Opt. 9, 1789-1797 (1970)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-9-8-1789

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited