Twomey effect in subtropical stratocumulus clouds from UV depolarization lidar

Conference paper (2018)

Authors

M. de Graaf Royal Netherlands Meteorological Institute (KNMI), Atmospheric Remote Sensing - CEG
Jessica Brown Wageningen University & Research
D.P. Donovan Royal Netherlands Meteorological Institute (KNMI)
Research Group
Atmospheric Remote Sensing (CEG) (TU Delft)
Copyright: © 2018 M. de Graaf, Jessica Brown, D.P. Donovan
DOI
help_outline
https://doi.org/10.1051/epjconf/201817605002
More Info
expand_more

Published Date

13-04-2018

Language

English

Faculty

Civil Engineering & Geosciences

Department

Geoscience and Remote Sensing

Research Group

Atmospheric Remote Sensing

Abstract

Marine stratocumulus clouds are important climate regulators, reflecting sunlight over a dark ocean background. A UV-depolarization lidar on Ascension, a small remote island in the south Atlantic, measured cloud droplet sizes and number concentration using an inversion method based on Monte Carlo (MC) modelling of multiple scattering in idealised semiadiabatic clouds. The droplet size and number concentration weremodulated due to smoke from the African continent, measured by the same instrument.