DOI: 10.1002/jgrd.50116
论文题名: Eruption of the Eyjafjallajökull Volcano in spring 2010: Multiwavelength Raman lidar measurements of sulphate particles in the lower troposphere
作者: Navas-Guzmán F. ; Müller D. ; Bravo-Aranda J.A. ; Guerrero-Rascado J.L. ; Granados-Muñoz M.J. ; Pérez-Ramírez D. ; Olmo F.J. ; Alados-Arboledas L.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 4 起始页码: 1804
结束页码: 1813
语种: 英语
英文关键词: lidar
; microphysical properties
; sulphate
; volcano
Scopus关键词: Optical properties
; Sulfur compounds
; Volcanoes
; Accumulation modes
; Aerosol optical property
; Microphysical property
; Particle number concentration
; Raman lidar measurement
; Situ instrumentation
; Spherical particle
; Sulphates
; Optical radar
; atmospheric plume
; boundary layer
; fractionation
; instrumentation
; lidar
; optical property
; particulate matter
; sulfate
; troposphere
; volcanic eruption
; wavelength
; Eyjafjallajokull
; Iberian Peninsula
; Iceland
英文摘要: A fraction of the volcanic plume that originated from the Eyjafjallajökull volcanic eruption on Iceland in 2010 reached the southern Iberian Peninsula in May 2010. The plume was monitored and characterized in terms of optical and microphysical properties with a combination of Raman lidar and star- and Sun-photometers. Our observations showed that the plume arriving at the Iberian Peninsula was mainly composed of sulphate and sulphuric-acid particles. To our knowledge, this is the first study of optical properties and inverted microphysical properties of volcanic sulphate particles in the lower troposphere/boundary layer based on multiwavelength Raman lidar measurements. A remarkable increase in the particle number concentration in the accumulation mode was determined from the inversion of the aerosol optical properties. The large Ångström exponents and low linear particle depolarization ratios (4-7%) indicated the presence of small and spherical particles. The particle effective radii ranged between 0.30 and 0.55 μm. In situ instrumentation confirmed an increase of sulphate particles at ground level during this period. Key PointsMicrophysical properties of Eyjafjallajökull volcanic sulphate particlesMonitoring of volcanic plumes by Raman lidar systemPresence of small and spherical particles in the volcanic plume © 2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63925
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Department of Applied Physics, University of Granada, Granada 18071, Spain; Andalusian Center for Environmental Research, Universidad de Granada, Granada 18071, Spain; Gwangju Institute of Science and Technology (GIST), 1 Cheomdan-Gwagiro (Oryong-dong), Buk-Gu Gwangju 500-712, South Korea; Leibniz Institute for Tropospheric Research (IfT), Permoserstrasse, 15, 04318 Leipzig, Germany; Science Systems and Applications, Inc., NASA Langley Research Center, Hampton, United States
Recommended Citation:
Navas-Guzmán F.,Müller D.,Bravo-Aranda J.A.,et al. Eruption of the Eyjafjallajökull Volcano in spring 2010: Multiwavelength Raman lidar measurements of sulphate particles in the lower troposphere[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(4)