| Issue |
E3S Web Conf.
Volume 575, 2024
Second Central Asian DUst Conference (CADUC-2 2024)
|
|
|---|---|---|
| Article Number | 02004 | |
| Number of page(s) | 4 | |
| Section | Dust properties at transport | |
| DOI | https://doi.org/10.1051/e3sconf/202457502004 | |
| Published online | 11 October 2024 | |
Is the depolarization ratio a global characteristic of mineral dust particles? Review on existing multiwavelength lidar measurements
Leibniz Institute for Tropospheric Research, Leipzig, Germany
* e-mail: haarig@tropos.de
Multi-wavelength lidar measurements of the particle linear depolarization ratio of mineral dust layers at various locations around the Earth are presented from a comprehensive literature review. The values at a wavelength of 532 nm as well as the spectral slope of the depolarization ratio exhibits no significant difference between the Sahara, Arabia and Central Asia. The main difference was observed between freshly emitted and transported dust. Fresh dust has a higher depolarization ratio probably due to a higher amount of large dust particles. The depolarization ratio tends to decrease during transport time. This effect is strongest at 1064 nm and almost not present at 355 nm.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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