| Issue |
EPJ Web Conf.
Volume 362, 2026
31st International Laser Radar Conference (ILRC 31) Held Together with the 22nd Coherent Laser Radar Conference (CLRC 22)
|
|
|---|---|---|
| Article Number | 10008 | |
| Number of page(s) | 4 | |
| Section | Airborne Lidar Investigations, Large Scale Field Experiments, and Synergistic Use of Lidar and Other Instruments | |
| DOI | https://doi.org/10.1051/epjconf/202636210008 | |
| Published online | 09 April 2026 | |
https://doi.org/10.1051/epjconf/202636210008
Noise-free sensitivity test for lidar volume depolarization ratio and sun-photometer DoLP in GRASP code for a case study
(a) CommSensLab, Department of Signal Theory and Communications, Universitat Politècnica de Catalunya, 08034 Barcelona, Spain
(b) Now at: Laboratoire de l'Atmosphère et des Cyclones, Université de la Réunion, 97744 Saint-Denis, France
(c) CNRS, Laboratoire d'Optique Atmosphérique (LOA), Université de Lille, 59650 Lille, France
(d) GRASP-SAS, Generalized Retrieval of Atmosphere and Surface Properties, 59260 Lezennes, France
* e-mail address: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 9 April 2026
Abstract
The GRASP algorithm is used for the first time to retrieve aerosol properties using the synergy of a 7-wavelength sun-photometer measuring the Degree of Linear Polarization and a 3-wavelength elastic lidar measuring the volume depolarization ratio at 2 wavelengths. A sensitivity test of noise-free inversions is performed for a case study dominated by local, urban, and dust particles. The addition of the volume depolarization ratio in the synergy has a good fitting, mainly, for optical properties and affects the vertical shape of the aerosol profiles in comparison with inversions without it. The combination of linear depolarization and volume depolarization seems to have an incompatibility for inverting aerosol properties.
Key words: GRASP algorithm / DoLP / volume depolarization ratio
© The Authors, published by EDP Sciences, 2026
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