OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 20 — Jul. 10, 2007
  • pp: 4444–4454

Direct-detection Doppler wind measurements with a Cabannes–Mie lidar: B. Impact of aerosol variation on iodine vapor filter methods

Chiao-Yao She, Jia Yue, Zhao-Ai Yan, Johnathan W. Hair, Jin-Jia Guo, Song-Hua Wu, and Zhi-Shen Liu  »View Author Affiliations


Applied Optics, Vol. 46, Issue 20, pp. 4444-4454 (2007)
http://dx.doi.org/10.1364/AO.46.004444


View Full Text Article

Enhanced HTML    Acrobat PDF (2796 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Atmospheric line-of-sight (LOS) wind measurement by means of incoherent Cabannes– Mie lidar with three frequency analyzers, two double-edge Fabry–Perot interferometers, one at 1064   nm (IR-FPI) and another at 355   nm (UV-FPI), as well as an iodine vapor filter (IVF) at 532   nm , utilizing either a single absorption edge, single edge (se-IVF), or both absorption edges, double edge (de-IVF), was considered in a companion paper [Appl. Opt. 46, 4434 (2007)], assuming known atmospheric temperature and aerosol mixing ratio, R b . The effects of temperature and aerosol variations on the uncertainty of LOS wind measurements are investigated and it is found that while the effect of temperature variation is small, the variation in R b can cause significant errors in wind measurements with IVF systems. Thus the means to incorporate a credible determination of R b into the wind measurement are presented as well as an assessment of the impact on wind measurement uncertainty. Unlike with IVF methods, researchers can take advantage of design flexibility with FPI methods to desensitize either molecular scattering for IR-FPI or aerosol scattering for UV-FPI. The additional wind measurement uncertainty caused by R b variation with FPI methods is thus negligible for these configurations. Assuming 100,000 photons from Cabannes scattering, and accounting for the R b measurement incorporated into the IVF method in this paper, it is found that the lowest wind uncertainty at low wind speeds in aerosol-free air is still with UV-FPI, 32 % lower than with de-IVF. For 0.05 < R b < 0.07 , the LOS wind uncertainty is lowest with de-IVF, and for R b > 0.07 , the IR-FPI outperforms all other methods. In addition to LOS wind uncertainty comparison under high wind speed conditions, the need of an appropriate and readily available narrowband filter for operating the wind lidar at visible wavelengths under sunlit condition is discussed; with such a filter the degradation of LOS wind measurement attributable to clear sky background is estimated to be 5% or less for practical lidar systems.

© 2007 Optical Society of America

OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters
(280.3340) Remote sensing and sensors : Laser Doppler velocimetry
(280.3640) Remote sensing and sensors : Lidar
(290.1090) Scattering : Aerosol and cloud effects

ToC Category:
Remote Sensing

History
Original Manuscript: March 15, 2006
Revised Manuscript: November 21, 2006
Manuscript Accepted: January 19, 2007
Published: June 20, 2007

Citation
Chiao-Yao She, Jia Yue, Zhao-Ai Yan, Johnathan W. Hair, Jin-Jia Guo, Song-Hua Wu, and Zhi-Shen Liu, "Direct-detection Doppler wind measurements with a Cabannes–Mie lidar: B. Impact of aerosol variation on iodine vapor filter methods," Appl. Opt. 46, 4444-4454 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-20-4444

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