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Title: Advancing the remote sensing of desert dust
Authors: Amiridis, Vassilis 
Tsekeri, Alexandra 
Marinou, Eleni 
Proestakis, Emmanouel 
Gkikas, Antonis 
Gialitaki, Anna 
Daskalopoulou, Vassiliki 
Paschou, Peristera 
Siomos, Nikos 
Binietoglou, Ioannis 
Gasteiger, Josef 
Freudenthaler, Volker 
Mamouri, Rodanthi-Elisavet 
Ansmann, Albert 
Mona, Lucia 
Major Field of Science: Medical and Health Sciences
Field Category: Earth and Related Environmental Sciences
Keywords: Desert dust;Polarization
Issue Date: 9-Oct-2019
Source: Remote Sensing of Clouds and the Atmosphere XXIV, 2019, 9-12 September, Strasbourg, France
Conference: Remote Sensing of Clouds and the Atmosphere 
Abstract: The irregular shape of mineral dust provides a strong signature on active and passive polarimetric remote sensing observations. Nowadays, advanced lidar systems operating in the framework of ACTRIS are capable of providing quality assured, calibrated multi-wavelength linear particle depolarization ratio measurements, while new developments will provide us more polarimetric measurements in the near future. Passive polarimeters are already part of ACTRIS and their integration in operational algorithms is expected in the near future. This wealth of new information combined with updated scattering databases and sophisticated inversion schemes provide the means towards an improved characterization of desert dust in the future. We present here some examples from the ACTRIS journey on dust research during the last decade, aiming to demonstrate the progress on issues such as: (a) the discrimination of desert dust in external mixtures, (b) the separation and estimation of the fine and coarse particle modes, (c) the synergy of passive and active remote sensing for the derivation of dust concentration profiles, (d) the provision of dust-related CCN and IN particle concentrations for aerosol-cloud interaction studies, (e) the development of new scattering databases based on realistic particle shapes, (e) the application of these techniques on spaceborne lidar retrievals for the provision of global and regional climatological datasets. Future plans within ACTRIS for the evaluation and advancement of the methodologies and retrievals are also discussed, combined with new developments within the framework of the D-TECT ERC Grant.
DOI: 10.1117/12.2530322
Rights: © SPIE
Attribution-NonCommercial-NoDerivatives 4.0 International
Type: Conference Papers
Affiliation : National Observatory of Athens 
Raymetrics S.A 
University of Vienna 
Ludwig Maximilians Universität 
Cyprus University of Technology 
Leibniz Institute for Tropospheric Research 
Istituto di Metodologie per l'Analisi Ambientale 
Appears in Collections:Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation

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