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@tropos-de.bsky.socialOct 9, 2026, 3:23 PM

One Year of Continuous Measurements at #Invercargill: unique dataset of the complete annual cycle in the #SouthernOcean region > www.tropos.de/en/aktuelles... / #LACROS #PollyNet #lidar @actris.bsky.social @dfg.de @aucklanduni.bsky.social @metservice.com @unileipzig.bsky.social #climate #Antarctica

The LACROS site in Invercargill at sunset. Photo by Lukas Pieper, TROPOS.Left: Freya Coulson and Lukas Pieper place the calibration target on the RPG cloud radar; Right: Andy Fraser (MetService NZ) and Freya Coulson getting ready for radiosonde launch. Photos by Guy Coulson, The Air Quality Collective and Lukas Pieper, TROPOS Calibration team in front of the LACROS measurement site. From left to right: Freya Coulson, Guy Coulson and Lukas Pieper. Photo by Lukas Pieper, TROPOS.
@tropos-de.bsky.socialOct 9, 2026, 12:19 PM

#Validation #study comparing #manually and #automatically evaluated #PollyXT #lidar profiles > www.tropos.de/en/aktuelles... > egusphere.copernicus.org/preprints/20... --- via Atmospheric Measurement Techniques #AMT @egu.eu / @actris.bsky.social #PollyNet #ACTRISD #Clouds #Aerosols #climate

Fig. 1: Scatterplots of layer-mean aerosol optical properties of the automatic versus manual profiles. Shown are the scatterplots for the backscatter coefficients at 355 (a), 532 (b), and 1064 nm (c) wavelength, the Ångström exponents for the 355/532 extinction (d), 355/532 backscatter (e), and 532/1064 nm backscatter wavelength pairs (f), the particle depolarization ratios at 355 (g) and 532 nm wavelength (h), the extinction coefficients at 355 (i) and 532 nm (j), and the lidar ratios at 355 (k) and 532 nm wavelength (l). N denotes the number of layer means. The least-square regression line (dashed magenta), the coefficient of determination (R2), the root-mean-square error (RMSE), the mean absolute error (MAE), the mean bias error (MBE), and the identity line (solid black) are given. From Hofer et al. (2026, Fig. 5). --- Hofer, J., et al.: Technical note: comparison of manually and automatically evaluated profiles of a PollyXT multiwavelength polarization Raman lidar, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2026-3928 , 2026.