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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 24 — Aug. 20, 2008
  • pp: 4309–4320

Simultaneous estimation of aerosol cloud concentration and spectral backscatter from multiple-wavelength lidar data

Russell E. Warren, Richard G. Vanderbeek, Avishai Ben-David, and Jeffrey L. Ahl  »View Author Affiliations


Applied Optics, Vol. 47, Issue 24, pp. 4309-4320 (2008)
http://dx.doi.org/10.1364/AO.47.004309


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Abstract

We present a sequential algorithm for estimating both concentration dependence on range and time and backscatter coefficient spectral dependence of optically thin localized atmospheric aerosols using data from rapidly tuned lidar. The range dependence of the aerosol is modeled as an expansion of the concentration in an orthonormal basis set whose coefficients carry the time dependence. Two estimators are run in parallel: a Kalman filter for the concentration range and time dependence and a maximum-likelihood estimator for the aerosol backscatter wavelength and time dependence. These two estimators exchange information continuously over the data-processing stream. The state model parameters of the Kalman filter are also estimated sequentially together with the concentration and backscatter. Lidar data collected prior to the aerosol release are used to estimate the ambient lidar return. The approach is illustrated on atmospheric backscatter long-wave infrared ( CO 2 ) lidar data.

© 2008 Optical Society of America

OCIS Codes
(010.1100) Atmospheric and oceanic optics : Aerosol detection
(010.1120) Atmospheric and oceanic optics : Air pollution monitoring
(010.3640) Atmospheric and oceanic optics : Lidar
(280.1415) Remote sensing and sensors : Biological sensing and sensors
(010.1350) Atmospheric and oceanic optics : Backscattering

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: May 2, 2008
Revised Manuscript: July 2, 2008
Manuscript Accepted: July 9, 2008
Published: August 12, 2008

Citation
Russell E. Warren, Richard G. Vanderbeek, Avishai Ben-David, and Jeffrey L. Ahl, "Simultaneous estimation of aerosol cloud concentration and spectral backscatter from multiple-wavelength lidar data," Appl. Opt. 47, 4309-4320 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-24-4309

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