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https://hdl.handle.net/20.500.14279/30799
Τίτλος: | DeLiAn - a growing collection of depolarization ratio, lidar ratio and Ångström exponent for different aerosol types and mixtures from ground-based lidar observations | Συγγραφείς: | Floutsi, Athena Augusta Baars, Holger Engelmann, Ronny Althausen, Dietrich Ansmann, Albert Bohlmann, Stephanie Heese, Birgit Hofer, Julian Kanitz, Thomas Haarig, Moritz Ohneiser, Kevin Radenz, Martin Seifert, Patric Skupin, Annett Yin, Zhenping Abdullaev, Sabur F. Komppula, Mika Filioglou, Maria Giannakaki, Elina Stachlewska, Iwona S. Janicka, Lucja Bortoli, Daniele Marinou, Eleni Amiridis, Vassilis Gialitaki, Anna Mamouri, Rodanthi-Elisavet Barja, Boris Wandinger, Ulla |
Major Field of Science: | Engineering and Technology | Field Category: | Civil Engineering | Λέξεις-κλειδιά: | Australia;Europe;North America;backscatter;ground-based measurement;lidar;optical property;troposphere | Ημερομηνία Έκδοσης: | 9-Μαΐ-2023 | Πηγή: | Atmospheric Measurement Techniques, 2023, vol. 16, iss. 9, pp. 2353 - 2379 | Volume: | 16 | Issue: | 9 | Start page: | 2353 | End page: | 2379 | Περιοδικό: | Atmospheric Measurement Techniques | Περίληψη: | This paper presents a collection of lidar-derived aerosol intensive optical properties for several aerosol types, namely the particle linear depolarization ratio, the extinction-to-backscatter ratio (lidar ratio) and the Ångström exponent. The data collection, named DeLiAn, is based on globally distributed, long-term, ground-based, multiwavelength, Raman and polarization lidar measurements, conducted mainly with lidars that have been developed at the Leibniz Institute for Tropospheric Research. The intensive optical properties are presented at two wavelengths, 355 and 532nm, for 13 aerosol categories. The categories cover the basic aerosol types (i.e., marine, pollution, continental European background, volcanic ash, smoke, mineral dust), as well as the most frequently observed mixtures they form. This extensive collection also incorporates more peculiar aerosol categories, including dried marine aerosol that, compared to marine aerosol, exhibits a significantly enhanced depolarization ratio (up to 15%). Besides Saharan dust, additional mineral dust types related to their source region were identified due to their lower lidar ratios (Central Asian and Middle Eastern dust). In addition, extreme wildfire events (such as in north America and Australia) emitted smoke into the stratosphere showing significantly different optical properties, i.e., high depolarization values (up to 25%), compared to tropospheric smoke. The data collection reflects and underlines the variety of aerosol mixtures in the atmosphere and can be used for the development of aerosol-typing schemes. The paper contains the most up-to-date and comprehensive overview of optical properties from aerosol lidar measurements and, therefore, provides a solid basis for future aerosol retrievals in the frame of both spaceborne and ground-based lidars. Furthermore, DeLiAn can assist the efforts for the harmonization of satellite records of aerosol properties performed at different wavelengths. | URI: | https://hdl.handle.net/20.500.14279/30799 | ISSN: | 18671381 | DOI: | 10.5194/amt-16-2353-2023 | Rights: | © Athena Augusta Floutsi et al. Attribution-NonCommercial-NoDerivatives 4.0 International |
Type: | Article | Affiliation: | Leibniz Institute for Tropospheric Research (TROPOS) Wuhan University Physical Technical Institute Finnish Meteorological Institute University of Athens University of Warsaw SRI Center for Physical Sciences and Technology Universidade de Évora National Observatory of Athens Aristotle University of Thessaloniki ERATOSTHENES Centre of Excellence Cyprus University of Technology University of Magallanes Finnish Meteorological Institute European Space Agency (ESA - ESTEC) University of Leicester |
Publication Type: | Peer Reviewed |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
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