Matthias Wiegner

TL;DR: In this article, a combined lidar-photometer method that permits the retrieval of vertical profiles of ash and non-ash (fine-mode) particle mass concentrations is presented.

TL;DR: In this paper, multiwavelength lidar, Sun photometer, and radiosonde observations were conducted at Ouarzazate, Morocco, in the framework of the Saharan Mineral Dust Experiment (SAMUM) in May-June 2006.

TL;DR: In this article, the authors retrieve mass concentrations of volcanic ash from the lidar measurements; spectral optical properties, i.e., extinction coefficients, backscatter coefficients, and linear depolarization ratios, are used as input for an inversion algorithm searching for model aerosol ensembles with optical properties that agree with the measured values within their uncertainty ranges.

TL;DR: In this paper, different retrieval methods to derive the aerosol backscatter coefficient βp, with special focus on the calibration of the ceilometers, are compared with respect to their accuracy and applicability, and it is shown that advanced lidar systems such as those being operated in the framework of the European Aerosol Research Lidar Network (EARLINET) are excellent tools for the calibration.

TL;DR: In this article, the vertically resolved aerosol optical properties of western and central/eastern European haze are investigated as a function of air mass transport, focusing on clean maritime air masses from the west and become increasingly polluted on their way into the continent.