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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 15 — Jul. 28, 2014
  • pp: 18698–18706

Lidar extinction-to-backscatter ratio of the ocean

James H. Churnside, James M. Sullivan, and Michael S. Twardowski  »View Author Affiliations

Optics Express, Vol. 22, Issue 15, pp. 18698-18706 (2014)

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Bio-optical models are used to develop a model of the lidar extinction-to-backscatter ratio applicable to oceanographic lidar. The model is based on chlorophyll concentration, and is expected to be valid for Case 1 waters. The limiting cases of narrow- and wide-beam lidars are presented and compared with estimates based on in situ optical measurements. Lidar measurements are also compared with the model using in situ or satellite estimates of chlorophyll concentration. A modified lidar ratio is defined, in which the properties of pure sea water are removed. This modified ratio is shown to be nearly constant for wide-beam lidar operating in low-chlorophyll waters, so accurate inversion to derive extinction and backscattering is possible under these conditions. This ratio can also be used for lidar calibration.

© 2014 Optical Society of America

OCIS Codes
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(010.3640) Atmospheric and oceanic optics : Lidar
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(280.3640) Remote sensing and sensors : Lidar

ToC Category:
Atmospheric and Oceanic Optics

Original Manuscript: June 16, 2014
Revised Manuscript: July 19, 2014
Manuscript Accepted: July 20, 2014
Published: July 25, 2014

Virtual Issues
Vol. 9, Iss. 9 Virtual Journal for Biomedical Optics

James H. Churnside, James M. Sullivan, and Michael S. Twardowski, "Lidar extinction-to-backscatter ratio of the ocean," Opt. Express 22, 18698-18706 (2014)

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