Single-Particle Extinction and Scattering Method Allows for Detection and Characterization of Aggregates of Aeolian Dust Grains in Ice Cores
Mineral dust aerosol in ice cores is one of the most important proxies for paleoclimate research. Under certain conditions, in the deeper part of ice cores, the pristine paleoclimate signal can be altered by in situ formation of dust aggregates, following the relocation of the impurities. Thus, aggr...
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Online Access: | http://hdl.handle.net/2434/508317 https://doi.org/10.1021/acsearthspacechem.7b00018 |
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ftunivmilanoair:oai:air.unimi.it:2434/508317 2024-02-11T10:04:47+01:00 Single-Particle Extinction and Scattering Method Allows for Detection and Characterization of Aggregates of Aeolian Dust Grains in Ice Cores M.A.C. Potenza L. Cremonesi B. Paroli A. Pullia B. Delmonte T. Sanvito G. Baccolo V. Maggi M.A.C. Potenza L. Cremonesi B. Delmonte T. Sanvito B. Paroli A. Pullia G. Baccolo V. Maggi 2017-07 http://hdl.handle.net/2434/508317 https://doi.org/10.1021/acsearthspacechem.7b00018 eng eng American Chemical Society (ACS) info:eu-repo/semantics/altIdentifier/wos/WOS:000406356800004 volume:1 issue:5 firstpage:261 lastpage:269 numberofpages:9 journal:ACS EARTH AND SPACE CHEMISTRY http://hdl.handle.net/2434/508317 doi:10.1021/acsearthspacechem.7b00018 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85054232573 info:eu-repo/semantics/closedAccess dust optical propertie ice core analysi aggregate light scattering Settore FIS/03 - Fisica della Materia info:eu-repo/semantics/article 2017 ftunivmilanoair https://doi.org/10.1021/acsearthspacechem.7b00018 2024-01-16T23:28:08Z Mineral dust aerosol in ice cores is one of the most important proxies for paleoclimate research. Under certain conditions, in the deeper part of ice cores, the pristine paleoclimate signal can be altered by in situ formation of dust aggregates, following the relocation of the impurities. Thus, aggregate detection is a critical indication for post-depositional processes. Clues for the presence of aggregates have been provided by anomalously large dust size distributions, while small aggregates were basically invisible to conventional dust analysis techniques. In this paper, we propose an optical approach to this problem based on the single-particle extinction and scattering (SPES) method, which allows researchers to distinguish between compact and non-compact particles through the analysis of samples populated by isometric particles contained in the core samples. This method can potentially be used during continuous flow analyses of ice cores. It allows for the detection of even the tiniest aggregates, falling within the typical size interval of aeolian mineral aerosol. This approach will potentially provide key evidence for assessing the integrity of paleoclimate records. Article in Journal/Newspaper ice core The University of Milan: Archivio Istituzionale della Ricerca (AIR) ACS Earth and Space Chemistry 1 5 261 269 |
institution |
Open Polar |
collection |
The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
op_collection_id |
ftunivmilanoair |
language |
English |
topic |
dust optical propertie ice core analysi aggregate light scattering Settore FIS/03 - Fisica della Materia |
spellingShingle |
dust optical propertie ice core analysi aggregate light scattering Settore FIS/03 - Fisica della Materia M.A.C. Potenza L. Cremonesi B. Paroli A. Pullia B. Delmonte T. Sanvito G. Baccolo V. Maggi Single-Particle Extinction and Scattering Method Allows for Detection and Characterization of Aggregates of Aeolian Dust Grains in Ice Cores |
topic_facet |
dust optical propertie ice core analysi aggregate light scattering Settore FIS/03 - Fisica della Materia |
description |
Mineral dust aerosol in ice cores is one of the most important proxies for paleoclimate research. Under certain conditions, in the deeper part of ice cores, the pristine paleoclimate signal can be altered by in situ formation of dust aggregates, following the relocation of the impurities. Thus, aggregate detection is a critical indication for post-depositional processes. Clues for the presence of aggregates have been provided by anomalously large dust size distributions, while small aggregates were basically invisible to conventional dust analysis techniques. In this paper, we propose an optical approach to this problem based on the single-particle extinction and scattering (SPES) method, which allows researchers to distinguish between compact and non-compact particles through the analysis of samples populated by isometric particles contained in the core samples. This method can potentially be used during continuous flow analyses of ice cores. It allows for the detection of even the tiniest aggregates, falling within the typical size interval of aeolian mineral aerosol. This approach will potentially provide key evidence for assessing the integrity of paleoclimate records. |
author2 |
M.A.C. Potenza L. Cremonesi B. Delmonte T. Sanvito B. Paroli A. Pullia G. Baccolo V. Maggi |
format |
Article in Journal/Newspaper |
author |
M.A.C. Potenza L. Cremonesi B. Paroli A. Pullia B. Delmonte T. Sanvito G. Baccolo V. Maggi |
author_facet |
M.A.C. Potenza L. Cremonesi B. Paroli A. Pullia B. Delmonte T. Sanvito G. Baccolo V. Maggi |
author_sort |
M.A.C. Potenza |
title |
Single-Particle Extinction and Scattering Method Allows for Detection and Characterization of Aggregates of Aeolian Dust Grains in Ice Cores |
title_short |
Single-Particle Extinction and Scattering Method Allows for Detection and Characterization of Aggregates of Aeolian Dust Grains in Ice Cores |
title_full |
Single-Particle Extinction and Scattering Method Allows for Detection and Characterization of Aggregates of Aeolian Dust Grains in Ice Cores |
title_fullStr |
Single-Particle Extinction and Scattering Method Allows for Detection and Characterization of Aggregates of Aeolian Dust Grains in Ice Cores |
title_full_unstemmed |
Single-Particle Extinction and Scattering Method Allows for Detection and Characterization of Aggregates of Aeolian Dust Grains in Ice Cores |
title_sort |
single-particle extinction and scattering method allows for detection and characterization of aggregates of aeolian dust grains in ice cores |
publisher |
American Chemical Society (ACS) |
publishDate |
2017 |
url |
http://hdl.handle.net/2434/508317 https://doi.org/10.1021/acsearthspacechem.7b00018 |
genre |
ice core |
genre_facet |
ice core |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000406356800004 volume:1 issue:5 firstpage:261 lastpage:269 numberofpages:9 journal:ACS EARTH AND SPACE CHEMISTRY http://hdl.handle.net/2434/508317 doi:10.1021/acsearthspacechem.7b00018 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85054232573 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1021/acsearthspacechem.7b00018 |
container_title |
ACS Earth and Space Chemistry |
container_volume |
1 |
container_issue |
5 |
container_start_page |
261 |
op_container_end_page |
269 |
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1790601526633299968 |