Airborne Lidar Polarization Estimation of the Vertical Profile
of Seawater Light Scattering Coefficient

A. P. Vasil’kov, Yu. A. Gol’din, and B. A. Gureev

Shirshov Institute of Oceanology, Russian Academy of Sciences, ul. Krasikova 23, Moscow, 117218 Russia

Received November 24, 1995

Abstract—An on-site experimental examination of a previously proposed method of determining the vertical
profile of the seawater light scattering coefficient from the temporal behavior of the degree of polarization of
backscattered pulses from the bulk of seawater sounded with a short pulse of a narrow linearly polarized laser
beam has been performed. A specially designed airborne polarization lidar was used to carry out the experimen
tal investigations. For the vertical profile of the scattering coefficient, qualitative agreement is obtained between
the profile calculated from the temporal behavior of the degree of polarization of backscattered pulses and the
profile measured with a submerged unit. The degree of depolarization of the measured backscattered pulses is
small and does not exceed 0.08 over a temporal interval of 200 ns. The “depolarization factor” is estimated
using the measured data.


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