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Estimation of the Mass Concentration of Volcanic Ash Using Ceilometers: Study of Fresh and Transported Plumes from La Palma Volcano
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dc.contributor.authorBedoya Velásquez, Andrés Estebanes_ES
dc.contributor.authorHoyos Restrepo, Manuelaes_ES
dc.contributor.authorBarreto Velasco, Áfricaes_ES
dc.contributor.authorGarcía Cabrera, Rosa Deliaes_ES
dc.contributor.authorRomero Campos, Pedro Migueles_ES
dc.contributor.authorGarcía Rodríguez, Omaira Elenaes_ES
dc.contributor.authorRamos López, Ramónes_ES
dc.contributor.authorRoininen, Reijoes_ES
dc.contributor.authorToledano, Carloses_ES
dc.contributor.authorSicard, Michaëles_ES
dc.contributor.authorCeolato, Romaines_ES
dc.identifier.citationRemote Sensing. 2022, 14(22), 5680es_ES
dc.description.abstractThis 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’s 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 × 10−6 (msr)−1 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 ± 0.8 and 21.0 ± 3.8 sr in the north and 6.9 ± 1.8 and 30.1 ± 10.3 sr in the south. The ash mass concentration reached moderate levels with maximum values of up to 313.7 μgm−3.es_ES
dc.description.sponsorshipThis work was financially supported by ONERA within the framework of the PROMETE project 2017–2021; the Spanish Ministry of Science and Innovation (PID2019-103886RB-I00\AEI\10.13039\501100011033); and the H2020 program from the European Union (GA no. 654109, 778349, 871115, 101008004 and 101086690).es_ES
dc.rightsLicencia CC: Reconocimiento CC BYes_ES
dc.subjectRemote sensinges_ES
dc.subjectAsh particle transportes_ES
dc.titleEstimation of the Mass Concentration of Volcanic Ash Using Ceilometers: Study of Fresh and Transported Plumes from La Palma Volcanoes_ES
Appears in Collections:Artículos científicos 2019-2022

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