DOI: 10.1016/j.atmosenv.2018.03.038
Scopus记录号: 2-s2.0-85044530560
论文题名: Radiative impact of Etna volcanic aerosols over south eastern Italy on 3 December 2015
作者: Romano S ; , Burlizzi P ; , Kinne S ; , De Tomasi F ; , Hamann U ; , Perrone M ; R
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 182 起始页码: 155
结束页码: 170
语种: 英语
英文关键词: AERONET aerosol products
; Direct radiative forcing
; LiDAR measurements
; Radiative flux measurements
; Satellite composite images
; Volcanic aerosol
Scopus关键词: Atmospheric aerosols
; Atmospheric radiation
; Heating rate
; Image enhancement
; Lithium compounds
; Optical properties
; Radiative transfer
; Radiometers
; Satellite imagery
; Sea level
; Troposphere
; Volcanoes
; Aerosol product
; Direct radiative forcing
; Lidar measurements
; Radiative fluxes
; Satellite composite
; Volcanic aerosols
; Optical radar
; AERONET
; flux measurement
; lidar
; MODIS
; radiative forcing
; satellite data
; satellite imagery
; volcanic aerosol
; aerosol
; Article
; heating
; Italy
; optical depth
; plume
; priority journal
; radiative forcing
; satellite imagery
; sea level
; troposphere
; volcano
; Italy
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Irradiance and LiDAR measurements at the surface combined with satellite products from SEVIRI (Spinning Enhanced Visible and InfraRed Imager) and MODIS (MODerate resolution Imaging Spectroradiometer) were used to detect and characterize the Etna volcano (Italy) plume that crossed southeastern Italy on 3 December 2015, from about 10:00 up to 11:30 UTC, and estimate its radiative impact. The volcanic plume was delivered by a violent and short paroxysmal eruption that occurred from 02:30 to 03:10 UTC of 3 December 2015, about 400 km away from the monitoring site. Measurements from the LiDAR combined with model results showed that the aerosol optical depth of the volcanic plume, located from about 11 to 13 km above sea level (asl), was equal to 0.80 ± 0.07 at 532 nm. A low tropospheric aerosol load, located up to about 7 km asl, with optical depth equal to 0.19 ± 0.01 at 532 nm was also revealed by the LiDAR measurements. Short-Wave (SW) downward and upward irradiance measurements revealed that the instantaneous SW direct radiative forcing at the surface (DRFsurf) decreased to −146 ± 16 W m−2 at 10:50 UTC because of the volcanic plume passage. A Two-Stream radiative transfer model integrated with experimental measurements, which took into account the volcanic plume and the low tropospheric aerosol properties, was used to reproduce the SW radiative flux measurements at the surface and estimate the aerosol DRF both at the top of the atmosphere (TOA) and at the surface, in addition to the aerosol heating rate vertical profile. We found that the clear-sky, instantaneous, SW DRF at the TOA and the atmospheric forcing were equal to −112 and 33 W m-2, respectively, at 10:50 UTC that represented the time at which the volcanic plume radiative impact was the highest. The SW aerosol heating rate reached the peak value of 1.24 K day−1 at 12 km asl and decreased to −0.06 K day−1 at 11 km asl, at 10:50 UTC. The role of the aerosol load located up to about 7 km asl and the corresponding radiative impact has also been evaluated. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82874
Appears in Collections: 气候变化事实与影响
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作者单位: Dipartimento di Matematica e Fisica, Università del Salento, Lecce, Italy; Max Planck Institute for Meteorology, Hamburg, Germany; Federal Office of Meteorology and Climatology, MeteoSwiss, Locarno-Monti, Switzerland
Recommended Citation:
Romano S,, Burlizzi P,, Kinne S,et al. Radiative impact of Etna volcanic aerosols over south eastern Italy on 3 December 2015[J]. Atmospheric Environment,2018-01-01,182