Abstract

A method of analytical differentiation is developed for processing differential absorption lidar (DIAL) data. The method is based on simple analytical transformation of the DIAL on and off signal ratio. The derivatives consequently are found for either individual data points or local zones of the measurement range. The method makes possible the separation of local zones of interest and the separate investigation of these. The smoothing level is established by the selected value of the exponent in a transformation formula rather than by the selection of the resolution range. The method does not require the calculation of local signal increments. This reduces significantly the high-frequency noise in the measured concentration. The method is general and can be used for different experimental data, including inelastic (Raman) lidar data. The processing technique is practical and does not require a determination of the solution for a large set of algebraic equations. It is based on the simple repetition of the same type of calculations with different constants. The method can easily be implemented for practical computations.

© 2002 Optical Society of America

Nonlinear-approximation technique for determining vertical ozone-concentration profiles with a differential-absorption lidar

Vladimir A. Kovalev, Michael P. Bristow, and James L. McElroy
Appl. Opt. 35(24) 4803-4811 (1996)

Differential absorption lidar measurement of vertical ozone profiles in the troposphere that contains aerosol layers with strong backscattering gradients: a simplified version

Vladimir A. Kovalev and James L. McElroy
Appl. Opt. 33(36) 8393-8401 (1994)

Ozone differential absorption lidar algorithm intercomparison

Sophie Godin, Allen I. Carswell, David P. Donovan, Hans Claude, Wolfgang Steinbrecht, I. Stuart McDermid, Thomas J. McGee, Michael R. Gross, Hideaki Nakane, Daan P. J. Swart, Hans B. Bergwerff, Osamu Uchino, Peter von der Gathen, and Roland Neuber
Appl. Opt. 38(30) 6225-6236 (1999)

Algorithm improvement and validation of National Institute for Environmental Studies ozone differential absorption lidar at the Tsukuba Network for Detection of Stratospheric Change complementary station

Chan Bong Park, Hideaki Nakane, Nobuo Sugimoto, Ichiro Matsui, Yasuhiro Sasano, Yasumi Fujinuma, Izumi Ikeuchi, Jun-Ichi Kurokawa, and Noritaka Furuhashi
Appl. Opt. 45(15) 3561-3576 (2006)

Improvements of the aerosol algorithm in ozone lidar data processing by use of evolutionary strategies

Holger Eisele and Thomas Trickl
Appl. Opt. 44(13) 2638-2651 (2005)