{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T05:29:08Z","timestamp":1773898148355,"version":"3.50.1"},"reference-count":46,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2022,11,10]],"date-time":"2022-11-10T00:00:00Z","timestamp":1668038400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"PROMETE project 2017\u20132021","award":["PID2019-103886RB-I00\\AEI\\10.13039\\501100011033"],"award-info":[{"award-number":["PID2019-103886RB-I00\\AEI\\10.13039\\501100011033"]}]},{"name":"PROMETE project 2017\u20132021","award":["654109"],"award-info":[{"award-number":["654109"]}]},{"name":"PROMETE project 2017\u20132021","award":["778349"],"award-info":[{"award-number":["778349"]}]},{"name":"PROMETE project 2017\u20132021","award":["871115"],"award-info":[{"award-number":["871115"]}]},{"name":"PROMETE project 2017\u20132021","award":["101008004"],"award-info":[{"award-number":["101008004"]}]},{"name":"PROMETE project 2017\u20132021","award":["101086690"],"award-info":[{"award-number":["101086690"]}]},{"name":"Spanish Ministry of Science and Innovation","award":["PID2019-103886RB-I00\\AEI\\10.13039\\501100011033"],"award-info":[{"award-number":["PID2019-103886RB-I00\\AEI\\10.13039\\501100011033"]}]},{"name":"Spanish Ministry of Science and Innovation","award":["654109"],"award-info":[{"award-number":["654109"]}]},{"name":"Spanish Ministry of Science and Innovation","award":["778349"],"award-info":[{"award-number":["778349"]}]},{"name":"Spanish Ministry of Science and Innovation","award":["871115"],"award-info":[{"award-number":["871115"]}]},{"name":"Spanish Ministry of Science and Innovation","award":["101008004"],"award-info":[{"award-number":["101008004"]}]},{"name":"Spanish Ministry of Science and Innovation","award":["101086690"],"award-info":[{"award-number":["101086690"]}]},{"name":"H2020 program from the European Union","award":["PID2019-103886RB-I00\\AEI\\10.13039\\501100011033"],"award-info":[{"award-number":["PID2019-103886RB-I00\\AEI\\10.13039\\501100011033"]}]},{"name":"H2020 program from the European Union","award":["654109"],"award-info":[{"award-number":["654109"]}]},{"name":"H2020 program from the European Union","award":["778349"],"award-info":[{"award-number":["778349"]}]},{"name":"H2020 program from the European Union","award":["871115"],"award-info":[{"award-number":["871115"]}]},{"name":"H2020 program from the European Union","award":["101008004"],"award-info":[{"award-number":["101008004"]}]},{"name":"H2020 program from the European Union","award":["101086690"],"award-info":[{"award-number":["101086690"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>This study presents a synergistic approach to the study of the aerosol optical and microphysical properties measured in La Palma, Spain, during the 2021 eruption of the Cumbre Vieja volcano (from 19 September to 13 December 2021). This study aims to characterize the different phases of the volcanic eruption using the spatio-temporal evolution of the event together with the mass concentration quantification of four different atmospheric layers. The impact of the plume\u2019s pathway that reached the South of France is analyzed. Here, passive and active remote sensors were used, namely CL51 and CL61 ceilometers and AERONET sunphotometers. The attenuated backscattering ranged from 0.8 to 9.1 \u00d7 10\u22126 (msr)\u22121 and the volume depolarization ratio measured nearby the volcano was up to 0.3. The ash plume remained within the first 4 km agl, with intense episodes that reached mean aerosol optical depth values of up to 0.4. Thirteen study cases were selected where coarse mode was dominant over fine mode. For the data selection, the fine and coarse lidar ratios found were 3.9 \u00b1 0.8 and 21.0 \u00b1 3.8 sr in the north and 6.9 \u00b1 1.8 and 30.1 \u00b1 10.3 sr in the south. The ash mass concentration reached moderate levels with maximum values of up to 313.7 \u03bcgm\u22123.<\/jats:p>","DOI":"10.3390\/rs14225680","type":"journal-article","created":{"date-parts":[[2022,11,10]],"date-time":"2022-11-10T21:33:02Z","timestamp":1668115982000},"page":"5680","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Estimation of the Mass Concentration of Volcanic Ash Using Ceilometers: Study of Fresh and Transported Plumes from La Palma Volcano"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8832-6851","authenticated-orcid":false,"given":"Andres E.","family":"Bedoya-Vel\u00e1squez","sequence":"first","affiliation":[{"name":"ONERA, The French Aerospace Lab, Universite de Toulouse, FR 31055 Toulouse, France"}]},{"given":"Manuela","family":"Hoyos-Restrepo","sequence":"additional","affiliation":[{"name":"ONERA, The French Aerospace Lab, Universite de Toulouse, FR 31055 Toulouse, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5806-585X","authenticated-orcid":false,"given":"Africa","family":"Barreto","sequence":"additional","affiliation":[{"name":"Iza\u00f1a Atmospheric Research Center (IARC), Agencia Estatal de Meteorolog\u00eda (AEMET), 38001 Santa Cruz de Tenerife, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9451-1631","authenticated-orcid":false,"given":"Rosa D.","family":"Garc\u00eda","sequence":"additional","affiliation":[{"name":"Iza\u00f1a Atmospheric Research Center (IARC), Agencia Estatal de Meteorolog\u00eda (AEMET), 38001 Santa Cruz de Tenerife, Spain"},{"name":"TRAGSATEC, 28006 Madrid, Spain"}]},{"given":"Pedro Miguel","family":"Romero-Campos","sequence":"additional","affiliation":[{"name":"Iza\u00f1a Atmospheric Research Center (IARC), Agencia Estatal de Meteorolog\u00eda (AEMET), 38001 Santa Cruz de Tenerife, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8395-6440","authenticated-orcid":false,"given":"Omaira","family":"Garc\u00eda","sequence":"additional","affiliation":[{"name":"Iza\u00f1a Atmospheric Research Center (IARC), Agencia Estatal de Meteorolog\u00eda (AEMET), 38001 Santa Cruz de Tenerife, Spain"}]},{"given":"Ram\u00f3n","family":"Ramos","sequence":"additional","affiliation":[{"name":"Iza\u00f1a Atmospheric Research Center (IARC), Agencia Estatal de Meteorolog\u00eda (AEMET), 38001 Santa Cruz de Tenerife, Spain"}]},{"given":"Reijo","family":"Roininen","sequence":"additional","affiliation":[{"name":"Vaisala Oyj, 01670 Vantaa, Finland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6890-6648","authenticated-orcid":false,"given":"Carlos","family":"Toledano","sequence":"additional","affiliation":[{"name":"Grupo de \u00d3ptica Atmosf\u00e9rica, Universidad de Valladolid, 47011 Valladolid, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8287-9693","authenticated-orcid":false,"given":"Micha\u00ebl","family":"Sicard","sequence":"additional","affiliation":[{"name":"CommSensLab, Department of Signal Theory and Communications, Universitat Polit\u00e8cnica de Catalunya, 08034 Barcelona, Spain"},{"name":"Ci\u00e8ncies i Tecnologies de l\u2019Espai-Centre de Recerca de l\u2019Aeron\u00e0utica i de l\u2019Espai\/Institut d\u2019Estudis Espacials de Catalunya (CTE-CRAE\/IEEC), Universitat Polit\u00e8cnica de Catalunya, 08034 Barcelona, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7231-7846","authenticated-orcid":false,"given":"Romain","family":"Ceolato","sequence":"additional","affiliation":[{"name":"ONERA, The French Aerospace Lab, Universite de Toulouse, FR 31055 Toulouse, France"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1723","DOI":"10.1038\/s41467-020-18352-5","article-title":"Persisting volcanic ash particles impact stratospheric SO2 lifetime and aerosol optical properties","volume":"11","author":"Zhu","year":"2020","journal-title":"Nat. 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