Optical, microphysical, mass and geometrical properties of aged volcanic particles observed over Athens, Greece, during the Eyjafjallajökull eruption in April 2010 through synergy of Raman lidar and sunphotometer measurements
Vertical profiles of the optical (extinction and backscatter coefficients, lidar ratio and Ångström exponent), microphysical (mean effective radius, mean refractive index, mean number concentration) and geometrical properties as well as the mass concentration of volcanic particles from the Eyjafjall...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2013
|
Subjects: | |
Online Access: | https://doi.org/10.5194/acp-13-9303-2013 |
id |
ftcyprusunivt:oai:ktisis.cut.ac.cy:10488/9710 |
---|---|
record_format |
openpolar |
spelling |
ftcyprusunivt:oai:ktisis.cut.ac.cy:10488/9710 2023-05-15T13:07:08+02:00 Optical, microphysical, mass and geometrical properties of aged volcanic particles observed over Athens, Greece, during the Eyjafjallajökull eruption in April 2010 through synergy of Raman lidar and sunphotometer measurements Kokkalis, Panayotis Papayannis, Alexandros D. Amiridis, Vassilis Mamouri, Rodanthi-Elisavet Veselovskĭĭ, Igor A. Kolgotin, Alexei V. Tsaknakis, Georgios Kristiansen, Nina I. Stohl, Andreas Mona, Lucia 2013-09-17 pdf https://doi.org/10.5194/acp-13-9303-2013 en eng Atmospheric Chemistry and Physics, 2013, vol. 13, no. 18, pp. 9303-9320 1680-7316 doi:10.5194/acp-13-9303-2013 9303 9320 open Dispersion model flexpart In-situ measurements Multiwavelength lidar Earlinet project Saharan dust Aerosol extinction Backscatter lidar Ash dispersion Desert dust Plume Earth and Related Environmental Sciences Natural Sciences article 2013 ftcyprusunivt https://doi.org/10.5194/acp-13-9303-2013 2022-10-20T16:37:34Z Vertical profiles of the optical (extinction and backscatter coefficients, lidar ratio and Ångström exponent), microphysical (mean effective radius, mean refractive index, mean number concentration) and geometrical properties as well as the mass concentration of volcanic particles from the Eyjafjallajökull eruption were retrieved at selected heights over Athens, Greece, using multi-wavelength Raman lidar measurements performed during the period 21-24 April 2010. Aerosol Robotic Network (AERONET) particulate columnar measurements along with inversion schemes were initialized together with lidar observations to deliver the aforementioned products. The well-known FLEXPART (FLEXible PARTicle dispersion model) model used for volcanic dispersion simulations is initiated as well in order to estimate the horizontal and vertical distribution of volcanic particles. Compared with the lidar measurements within the planetary boundary layer over Athens, FLEXPART proved to be a useful tool for determining the state of mixing of ash with other, locally emitted aerosol types. The major findings presented in our work concern the identification of volcanic particles layers in the form of filaments after 7-day transport from the volcanic source (approximately 4000 km away from our site) from the surface and up to 10 km according to the lidar measurements. Mean hourly averaged lidar signals indicated that the layer thickness of volcanic particles ranged between 1.5 and 2.2 km. The corresponding aerosol optical depth was found to vary from 0.01 to 0.18 at 355 nm and from 0.02 up to 0.17 at 532 nm. Furthermore, the corresponding lidar ratios (S) ranged between 60 and 80 sr at 355 nm and 44 and 88 sr at 532 nm. The mean effective radius of the volcanic particles estimated by applying inversion scheme to the lidar data found to vary within the range 0.13-0.38 μm and the refractive index ranged from 1.39+0.009i to 1.48+0.006i. This high variability is most probably attributed to the mixing of aged volcanic particles with other aerosol ... Article in Journal/Newspaper Aerosol Robotic Network Eyjafjallajökull Cyprus University of Technology: Ktisis Institutional Repository Atmospheric Chemistry and Physics 13 18 9303 9320 |
institution |
Open Polar |
collection |
Cyprus University of Technology: Ktisis Institutional Repository |
op_collection_id |
ftcyprusunivt |
language |
English |
topic |
Dispersion model flexpart In-situ measurements Multiwavelength lidar Earlinet project Saharan dust Aerosol extinction Backscatter lidar Ash dispersion Desert dust Plume Earth and Related Environmental Sciences Natural Sciences |
spellingShingle |
Dispersion model flexpart In-situ measurements Multiwavelength lidar Earlinet project Saharan dust Aerosol extinction Backscatter lidar Ash dispersion Desert dust Plume Earth and Related Environmental Sciences Natural Sciences Kokkalis, Panayotis Papayannis, Alexandros D. Amiridis, Vassilis Mamouri, Rodanthi-Elisavet Veselovskĭĭ, Igor A. Kolgotin, Alexei V. Tsaknakis, Georgios Kristiansen, Nina I. Stohl, Andreas Mona, Lucia Optical, microphysical, mass and geometrical properties of aged volcanic particles observed over Athens, Greece, during the Eyjafjallajökull eruption in April 2010 through synergy of Raman lidar and sunphotometer measurements |
topic_facet |
Dispersion model flexpart In-situ measurements Multiwavelength lidar Earlinet project Saharan dust Aerosol extinction Backscatter lidar Ash dispersion Desert dust Plume Earth and Related Environmental Sciences Natural Sciences |
description |
Vertical profiles of the optical (extinction and backscatter coefficients, lidar ratio and Ångström exponent), microphysical (mean effective radius, mean refractive index, mean number concentration) and geometrical properties as well as the mass concentration of volcanic particles from the Eyjafjallajökull eruption were retrieved at selected heights over Athens, Greece, using multi-wavelength Raman lidar measurements performed during the period 21-24 April 2010. Aerosol Robotic Network (AERONET) particulate columnar measurements along with inversion schemes were initialized together with lidar observations to deliver the aforementioned products. The well-known FLEXPART (FLEXible PARTicle dispersion model) model used for volcanic dispersion simulations is initiated as well in order to estimate the horizontal and vertical distribution of volcanic particles. Compared with the lidar measurements within the planetary boundary layer over Athens, FLEXPART proved to be a useful tool for determining the state of mixing of ash with other, locally emitted aerosol types. The major findings presented in our work concern the identification of volcanic particles layers in the form of filaments after 7-day transport from the volcanic source (approximately 4000 km away from our site) from the surface and up to 10 km according to the lidar measurements. Mean hourly averaged lidar signals indicated that the layer thickness of volcanic particles ranged between 1.5 and 2.2 km. The corresponding aerosol optical depth was found to vary from 0.01 to 0.18 at 355 nm and from 0.02 up to 0.17 at 532 nm. Furthermore, the corresponding lidar ratios (S) ranged between 60 and 80 sr at 355 nm and 44 and 88 sr at 532 nm. The mean effective radius of the volcanic particles estimated by applying inversion scheme to the lidar data found to vary within the range 0.13-0.38 μm and the refractive index ranged from 1.39+0.009i to 1.48+0.006i. This high variability is most probably attributed to the mixing of aged volcanic particles with other aerosol ... |
format |
Article in Journal/Newspaper |
author |
Kokkalis, Panayotis Papayannis, Alexandros D. Amiridis, Vassilis Mamouri, Rodanthi-Elisavet Veselovskĭĭ, Igor A. Kolgotin, Alexei V. Tsaknakis, Georgios Kristiansen, Nina I. Stohl, Andreas Mona, Lucia |
author_facet |
Kokkalis, Panayotis Papayannis, Alexandros D. Amiridis, Vassilis Mamouri, Rodanthi-Elisavet Veselovskĭĭ, Igor A. Kolgotin, Alexei V. Tsaknakis, Georgios Kristiansen, Nina I. Stohl, Andreas Mona, Lucia |
author_sort |
Kokkalis, Panayotis |
title |
Optical, microphysical, mass and geometrical properties of aged volcanic particles observed over Athens, Greece, during the Eyjafjallajökull eruption in April 2010 through synergy of Raman lidar and sunphotometer measurements |
title_short |
Optical, microphysical, mass and geometrical properties of aged volcanic particles observed over Athens, Greece, during the Eyjafjallajökull eruption in April 2010 through synergy of Raman lidar and sunphotometer measurements |
title_full |
Optical, microphysical, mass and geometrical properties of aged volcanic particles observed over Athens, Greece, during the Eyjafjallajökull eruption in April 2010 through synergy of Raman lidar and sunphotometer measurements |
title_fullStr |
Optical, microphysical, mass and geometrical properties of aged volcanic particles observed over Athens, Greece, during the Eyjafjallajökull eruption in April 2010 through synergy of Raman lidar and sunphotometer measurements |
title_full_unstemmed |
Optical, microphysical, mass and geometrical properties of aged volcanic particles observed over Athens, Greece, during the Eyjafjallajökull eruption in April 2010 through synergy of Raman lidar and sunphotometer measurements |
title_sort |
optical, microphysical, mass and geometrical properties of aged volcanic particles observed over athens, greece, during the eyjafjallajökull eruption in april 2010 through synergy of raman lidar and sunphotometer measurements |
publishDate |
2013 |
url |
https://doi.org/10.5194/acp-13-9303-2013 |
genre |
Aerosol Robotic Network Eyjafjallajökull |
genre_facet |
Aerosol Robotic Network Eyjafjallajökull |
op_relation |
Atmospheric Chemistry and Physics, 2013, vol. 13, no. 18, pp. 9303-9320 1680-7316 doi:10.5194/acp-13-9303-2013 9303 9320 |
op_rights |
open |
op_doi |
https://doi.org/10.5194/acp-13-9303-2013 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
13 |
container_issue |
18 |
container_start_page |
9303 |
op_container_end_page |
9320 |
_version_ |
1766036412095791104 |