Aerosol optical properties in the Arctic: The role of aerosol chemistry and dust composition in a closure experiment between Lidar and tethered balloon vertical profiles
A closure experiment was conducted over Svalbard by comparing Lidar measurements and optical aerosol properties calculated from aerosol vertical profiles measured using a tethered balloon. Arctic Haze was present together with Icelandic dust. Chemical analysis of filter samples, aerosol size distrib...
Published in: | Science of The Total Environment |
---|---|
Main Authors: | , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier B.V.
2019
|
Subjects: | |
Online Access: | http://hdl.handle.net/10281/262743 https://doi.org/10.1016/j.scitotenv.2019.05.399 |
id |
ftunivmilanobic:oai:boa.unimib.it:10281/262743 |
---|---|
record_format |
openpolar |
spelling |
ftunivmilanobic:oai:boa.unimib.it:10281/262743 2024-04-14T08:00:19+00:00 Aerosol optical properties in the Arctic: The role of aerosol chemistry and dust composition in a closure experiment between Lidar and tethered balloon vertical profiles Ferrero L. Ritter C. Cappelletti D. Moroni B. Mocnik G. Mazzola M. Lupi A. Becagli S. Traversi R. Cataldi M. Neuber R. Vitale V. Bolzacchini E. Ferrero, L Ritter, C Cappelletti, D Moroni, B Mocnik, G Mazzola, M Lupi, A Becagli, S Traversi, R Cataldi, M Neuber, R Vitale, V Bolzacchini, E 2019 http://hdl.handle.net/10281/262743 https://doi.org/10.1016/j.scitotenv.2019.05.399 eng eng Elsevier B.V. country:NL info:eu-repo/semantics/altIdentifier/pmid/31185395 info:eu-repo/semantics/altIdentifier/wos/WOS:000479029700041 volume:686 firstpage:452 lastpage:467 numberofpages:16 journal:SCIENCE OF THE TOTAL ENVIRONMENT http://hdl.handle.net/10281/262743 doi:10.1016/j.scitotenv.2019.05.399 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85066829650 www.elsevier.com/locate/scitotenv info:eu-repo/semantics/closedAccess Aerosol Back scattering Chemical composition Icelandic dust Lidar Optical propertie Svalbard CHIM/12 - CHIMICA DELL'AMBIENTE E DEI BENI CULTURALI info:eu-repo/semantics/article 2019 ftunivmilanobic https://doi.org/10.1016/j.scitotenv.2019.05.399 2024-03-21T02:25:14Z A closure experiment was conducted over Svalbard by comparing Lidar measurements and optical aerosol properties calculated from aerosol vertical profiles measured using a tethered balloon. Arctic Haze was present together with Icelandic dust. Chemical analysis of filter samples, aerosol size distribution and a full set of meteorological parameters were determined at ground. Moreover, scanning electron microscopy coupled with energy-dispersive X-ray (SEM-EDS) data were at disposal showing the presence of several mineralogical phases (i.e., sheet silicates, gypsum, quartz, rutile, hematite). The closure experiment was set up by calculating the backscattering coefficients from tethered balloon data and comparing them with the corresponding lidar profiles. This was preformed in three subsequent steps aimed at determining the importance of a complete aerosol speciation: (i) a simple, columnar refractive index was obtained by the closest Aerosol Robotic Network (AERONET) station, (ii) the role of water-soluble components, elemental carbon and organic matter (EC/OM) was addressed, (iii) the dust composition was included. When considering the AERONET data, or only the ionic water-soluble components and the EC/OM fraction, results showed an underestimation of the backscattering lidar signal up to 76, 53 and 45% (355, 532 and 1064 nm). Instead, when the dust contribution was included, the underestimation disappeared and the vertically-averaged, backscattering coefficients (1.45 ± 0.30, 0.69 ± 0.15 and 0.34 ± 0.08 Mm−1 sr−1, at 355, 532 and 1064 nm) were found in keeping with the lidar ones (1.60 ± 0.22, 0.75 ± 0.16 and 0.31 ± 0.08 Mm−1 sr−1). Final results were characterized by low RMSE (0.36, 0.08 and 0.04 Mm−1 sr−1) and a high linear correlation (R2 of 0.992, 0.992 and 0.994) with slopes close to one (1.368, 0.931 and 0.977, respectively). This work highlighted the importance of all the aerosol components and of the synergy between single particle and bulk chemical analysis for the optical property characterization in ... Article in Journal/Newspaper Aerosol Robotic Network Arctic Svalbard Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive) Arctic Svalbard Science of The Total Environment 686 452 467 |
institution |
Open Polar |
collection |
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive) |
op_collection_id |
ftunivmilanobic |
language |
English |
topic |
Aerosol Back scattering Chemical composition Icelandic dust Lidar Optical propertie Svalbard CHIM/12 - CHIMICA DELL'AMBIENTE E DEI BENI CULTURALI |
spellingShingle |
Aerosol Back scattering Chemical composition Icelandic dust Lidar Optical propertie Svalbard CHIM/12 - CHIMICA DELL'AMBIENTE E DEI BENI CULTURALI Ferrero L. Ritter C. Cappelletti D. Moroni B. Mocnik G. Mazzola M. Lupi A. Becagli S. Traversi R. Cataldi M. Neuber R. Vitale V. Bolzacchini E. Aerosol optical properties in the Arctic: The role of aerosol chemistry and dust composition in a closure experiment between Lidar and tethered balloon vertical profiles |
topic_facet |
Aerosol Back scattering Chemical composition Icelandic dust Lidar Optical propertie Svalbard CHIM/12 - CHIMICA DELL'AMBIENTE E DEI BENI CULTURALI |
description |
A closure experiment was conducted over Svalbard by comparing Lidar measurements and optical aerosol properties calculated from aerosol vertical profiles measured using a tethered balloon. Arctic Haze was present together with Icelandic dust. Chemical analysis of filter samples, aerosol size distribution and a full set of meteorological parameters were determined at ground. Moreover, scanning electron microscopy coupled with energy-dispersive X-ray (SEM-EDS) data were at disposal showing the presence of several mineralogical phases (i.e., sheet silicates, gypsum, quartz, rutile, hematite). The closure experiment was set up by calculating the backscattering coefficients from tethered balloon data and comparing them with the corresponding lidar profiles. This was preformed in three subsequent steps aimed at determining the importance of a complete aerosol speciation: (i) a simple, columnar refractive index was obtained by the closest Aerosol Robotic Network (AERONET) station, (ii) the role of water-soluble components, elemental carbon and organic matter (EC/OM) was addressed, (iii) the dust composition was included. When considering the AERONET data, or only the ionic water-soluble components and the EC/OM fraction, results showed an underestimation of the backscattering lidar signal up to 76, 53 and 45% (355, 532 and 1064 nm). Instead, when the dust contribution was included, the underestimation disappeared and the vertically-averaged, backscattering coefficients (1.45 ± 0.30, 0.69 ± 0.15 and 0.34 ± 0.08 Mm−1 sr−1, at 355, 532 and 1064 nm) were found in keeping with the lidar ones (1.60 ± 0.22, 0.75 ± 0.16 and 0.31 ± 0.08 Mm−1 sr−1). Final results were characterized by low RMSE (0.36, 0.08 and 0.04 Mm−1 sr−1) and a high linear correlation (R2 of 0.992, 0.992 and 0.994) with slopes close to one (1.368, 0.931 and 0.977, respectively). This work highlighted the importance of all the aerosol components and of the synergy between single particle and bulk chemical analysis for the optical property characterization in ... |
author2 |
Ferrero, L Ritter, C Cappelletti, D Moroni, B Mocnik, G Mazzola, M Lupi, A Becagli, S Traversi, R Cataldi, M Neuber, R Vitale, V Bolzacchini, E |
format |
Article in Journal/Newspaper |
author |
Ferrero L. Ritter C. Cappelletti D. Moroni B. Mocnik G. Mazzola M. Lupi A. Becagli S. Traversi R. Cataldi M. Neuber R. Vitale V. Bolzacchini E. |
author_facet |
Ferrero L. Ritter C. Cappelletti D. Moroni B. Mocnik G. Mazzola M. Lupi A. Becagli S. Traversi R. Cataldi M. Neuber R. Vitale V. Bolzacchini E. |
author_sort |
Ferrero L. |
title |
Aerosol optical properties in the Arctic: The role of aerosol chemistry and dust composition in a closure experiment between Lidar and tethered balloon vertical profiles |
title_short |
Aerosol optical properties in the Arctic: The role of aerosol chemistry and dust composition in a closure experiment between Lidar and tethered balloon vertical profiles |
title_full |
Aerosol optical properties in the Arctic: The role of aerosol chemistry and dust composition in a closure experiment between Lidar and tethered balloon vertical profiles |
title_fullStr |
Aerosol optical properties in the Arctic: The role of aerosol chemistry and dust composition in a closure experiment between Lidar and tethered balloon vertical profiles |
title_full_unstemmed |
Aerosol optical properties in the Arctic: The role of aerosol chemistry and dust composition in a closure experiment between Lidar and tethered balloon vertical profiles |
title_sort |
aerosol optical properties in the arctic: the role of aerosol chemistry and dust composition in a closure experiment between lidar and tethered balloon vertical profiles |
publisher |
Elsevier B.V. |
publishDate |
2019 |
url |
http://hdl.handle.net/10281/262743 https://doi.org/10.1016/j.scitotenv.2019.05.399 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Aerosol Robotic Network Arctic Svalbard |
genre_facet |
Aerosol Robotic Network Arctic Svalbard |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/31185395 info:eu-repo/semantics/altIdentifier/wos/WOS:000479029700041 volume:686 firstpage:452 lastpage:467 numberofpages:16 journal:SCIENCE OF THE TOTAL ENVIRONMENT http://hdl.handle.net/10281/262743 doi:10.1016/j.scitotenv.2019.05.399 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85066829650 www.elsevier.com/locate/scitotenv |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.scitotenv.2019.05.399 |
container_title |
Science of The Total Environment |
container_volume |
686 |
container_start_page |
452 |
op_container_end_page |
467 |
_version_ |
1796299642753777664 |