Experimental techniques for the calibration of lidar depolarization channels in EARLINET
Particle depolarization ratio retrieved from lidar measurements are commonly used for aerosol-typing studies, microphysical inversion, or mass concentration retrievals. The particle depolarization ratio is one of the primary parameters that can differentiate several major aerosol components but o...
Main Authors: | , , , , , , , , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
Copernicus Publications
2018-02-01
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Series: | Atmospheric Measurement Techniques |
Online Access: | https://www.atmos-meas-tech.net/11/1119/2018/amt-11-1119-2018.pdf |
Summary: | Particle depolarization ratio retrieved from lidar measurements are commonly
used for aerosol-typing studies, microphysical inversion, or mass
concentration retrievals. The particle depolarization ratio is one of the
primary parameters that can differentiate several major aerosol components but only if the measurements are accurate enough. The accuracy related to the
retrieval of particle depolarization ratios is the driving factor for
assessing and improving the uncertainties of the depolarization products.
This paper presents different depolarization calibration procedures used to
improve the quality of the depolarization data. The results illustrate a
significant improvement of the depolarization lidar products for all the
selected lidar stations that have implemented depolarization calibration
procedures. The calibrated volume and particle depolarization profiles at
532 nm show values that fall within a range that is generally
accepted in the literature. |
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ISSN: | 1867-1381 1867-8548 |