{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T05:28:20Z","timestamp":1772256500971,"version":"3.50.1"},"reference-count":79,"publisher":"Copernicus GmbH","issue":"8","license":[{"start":{"date-parts":[[2013,4,29]],"date-time":"2013-04-29T00:00:00Z","timestamp":1367193600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"DOI":"10.13039\/501100000780","name":"European Commission","doi-asserted-by":"publisher","award":["262254"],"award-info":[{"award-number":["262254"]}],"id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Atmos. Chem. Phys."],"abstract":"<jats:p>Abstract. The eruption of the Icelandic volcano Eyjafjallaj\u00f6kull in April\u2013May 2010 represents a \"natural experiment\" to study the impact of volcanic emissions on a continental scale. For the first time, quantitative data about the presence, altitude, and layering of the volcanic cloud, in conjunction with optical information, are available for most parts of Europe derived from the observations by the European Aerosol Research Lidar NETwork (EARLINET). Based on multi-wavelength Raman lidar systems, EARLINET is the only instrument worldwide that is able to provide dense time series of high-quality optical data to be used for aerosol typing and for the retrieval of particle microphysical properties as a function of altitude.  In this work we show the four-dimensional (4-D) distribution of the Eyjafjallaj\u00f6kull volcanic cloud in the troposphere over Europe as observed by EARLINET during the entire volcanic event (15 April\u201326 May 2010). All optical properties directly measured (backscatter, extinction, and particle linear depolarization ratio) are stored in the EARLINET database available at http:\/\/www.earlinet.org. A specific relational database providing the volcanic mask over Europe, realized ad hoc for this specific event, has been developed and is available on request at http:\/\/www.earlinet.org.  During the first days after the eruption, volcanic particles were detected over Central Europe within a wide range of altitudes, from the upper troposphere down to the local planetary boundary layer (PBL). After 19 April 2010, volcanic particles were detected over southern and south-eastern Europe. During the first half of May (5\u201315 May), material emitted by the Eyjafjallaj\u00f6kull volcano was detected over Spain and Portugal and then over the Mediterranean and the Balkans. The last observations of the event were recorded until 25 May in Central Europe and in the Eastern Mediterranean area.  The 4-D distribution of volcanic aerosol layering and optical properties on European scale reported here provides an unprecedented data set for evaluating satellite data and aerosol dispersion models for this kind of volcanic events.<\/jats:p>","DOI":"10.5194\/acp-13-4429-2013","type":"journal-article","created":{"date-parts":[[2013,4,29]],"date-time":"2013-04-29T07:39:18Z","timestamp":1367221158000},"page":"4429-4450","source":"Crossref","is-referenced-by-count":88,"title":["Four-dimensional distribution of the 2010 Eyjafjallaj\u00f6kull volcanic cloud over Europe observed by EARLINET"],"prefix":"10.5194","volume":"13","author":[{"given":"G.","family":"Pappalardo","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4157-0838","authenticated-orcid":false,"given":"L.","family":"Mona","sequence":"additional","affiliation":[]},{"given":"G.","family":"D'Amico","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3676-9121","authenticated-orcid":false,"given":"U.","family":"Wandinger","sequence":"additional","affiliation":[]},{"given":"M.","family":"Adam","sequence":"additional","affiliation":[]},{"given":"A.","family":"Amodeo","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5382-8440","authenticated-orcid":false,"given":"A.","family":"Ansmann","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8821-6348","authenticated-orcid":false,"given":"A.","family":"Apituley","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3576-7167","authenticated-orcid":false,"given":"L.","family":"Alados Arboledas","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1161-7746","authenticated-orcid":false,"given":"D.","family":"Balis","sequence":"additional","affiliation":[]},{"given":"A.","family":"Boselli","sequence":"additional","affiliation":[]},{"given":"J. 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