Articles | Volume 17, issue 3
Research article
 | Highlight paper
05 Feb 2024
Research article | Highlight paper |  | 05 Feb 2024

Long-term aerosol particle depolarization ratio measurements with HALO Photonics Doppler lidar

Viet Le, Hannah Lobo, Ewan J. O'Connor, and Ville Vakkari


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on amt-2023-37', Anonymous Referee #1, 25 May 2023
    • AC1: 'Reply on RC1', Viet Le, 29 Aug 2023
  • RC2: 'Comment on amt-2023-37', Anonymous Referee #4, 31 May 2023
    • AC2: 'Reply on RC2', Viet Le, 29 Aug 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Viet Le on behalf of the Authors (26 Sep 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (02 Oct 2023) by Vassilis Amiridis
AR by Viet Le on behalf of the Authors (29 Nov 2023)
Executive editor
This is the first time showing that long-term polarization observations with a Doppler lidar are possible. Second, the methodology could be applied to other HALO lidars and thus expand the capabilities for observing atmospheric aerosol. Third: It shows that Finland (any maybe whole Scandinavia) is during summer time most of the time dominated by Pollen or other biogenic aerosol, something which is maybe attributed to the continental background class used in CALIPSO, and not yet fully understood.
Short summary
This study offers a long-term overview of aerosol particle depolarization ratio at the wavelength of 1565 nm obtained from vertical profiling measurements by Halo Doppler lidars during 4 years at four different locations across Finland. Our observations support the long-term usage of Halo Doppler lidar depolarization ratio such as the detection of aerosols that may pose a safety risk for aviation. Long-range Saharan dust transport and pollen transport are also showcased here.