Ambient aerosol properties in the remote atmosphere from global-scale in situ measurements
In situ measurements of aerosol microphysical, chemical, and optical properties were made during global-scale flights from 2016–2018 as part of the Atmospheric Tomography Mission (ATom). The NASA DC-8 aircraft flew from ∼ 84∘ N to ∼ 86∘ S latitude over the Pacific, Atlantic, Arctic, and Southern oce...
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2021
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00058353 2024-09-15T17:35:15+00:00 Ambient aerosol properties in the remote atmosphere from global-scale in situ measurements Brock, Charles A. Froyd, Karl D. Dollner, Maximilian Williamson, Christina J. Schill, Gregory Murphy, Daniel M. Wagner, Nicholas J. Kupc, Agnieszka Jimenez, Jose L. Campuzano-Jost, Pedro Nault, Benjamin A. Schroder, Jason C. Day, Douglas A. Price, Derek J. Weinzierl, Bernadett Schwarz, Joshua P. Katich, Joseph M. Wang, Siyuan Zeng, Linghan Weber, Rodney Dibb, Jack Scheuer, Eric Diskin, Glenn S. DiGangi, Joshua P. Bui, ThaoPaul Dean-Day, Jonathan M. Thompson, Chelsea R. Peischl, Jeff Ryerson, Thomas B. Bourgeois, Ilann Daube, Bruce C. Commane, Róisín Wofsy, Steven C. 2021-10 electronic https://doi.org/10.5194/acp-21-15023-2021 https://noa.gwlb.de/receive/cop_mods_00058353 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058002/acp-21-15023-2021.pdf https://acp.copernicus.org/articles/21/15023/2021/acp-21-15023-2021.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-21-15023-2021 https://noa.gwlb.de/receive/cop_mods_00058353 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058002/acp-21-15023-2021.pdf https://acp.copernicus.org/articles/21/15023/2021/acp-21-15023-2021.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2021 ftnonlinearchiv https://doi.org/10.5194/acp-21-15023-2021 2024-06-26T04:36:34Z In situ measurements of aerosol microphysical, chemical, and optical properties were made during global-scale flights from 2016–2018 as part of the Atmospheric Tomography Mission (ATom). The NASA DC-8 aircraft flew from ∼ 84∘ N to ∼ 86∘ S latitude over the Pacific, Atlantic, Arctic, and Southern oceans while profiling nearly continuously between altitudes of ∼ 160 m and ∼ 12 km. These global circuits were made once each season. Particle size distributions measured in the aircraft cabin at dry conditions and with an underwing probe at ambient conditions were combined with bulk and single-particle composition observations and measurements of water vapor, pressure, and temperature to estimate aerosol hygroscopicity and hygroscopic growth factors and calculate size distributions at ambient relative humidity. These reconstructed, composition-resolved ambient size distributions were used to estimate intensive and extensive aerosol properties, including single-scatter albedo, the asymmetry parameter, extinction, absorption, Ångström exponents, and aerosol optical depth (AOD) at several wavelengths, as well as cloud condensation nuclei (CCN) concentrations at fixed supersaturations and lognormal fits to four modes. Dry extinction and absorption were compared with direct in situ measurements, and AOD derived from the extinction profiles was compared with remotely sensed AOD measurements from the ground-based Aerosol Robotic Network (AERONET); this comparison showed no substantial bias. The purpose of this work is to describe the methodology by which ambient aerosol properties are estimated from the in situ measurements, provide statistical descriptions of the aerosol characteristics of different remote air mass types, examine the contributions to AOD from different aerosol types in different air masses, and provide an entry point to the ATom aerosol database. The contributions of different aerosol types (dust, sea salt, biomass burning, etc.) to AOD generally align with expectations based on location of the profiles ... Article in Journal/Newspaper Aerosol Robotic Network albedo Atlantic Arctic Atlantic-Arctic Niedersächsisches Online-Archiv NOA Atmospheric Chemistry and Physics 21 19 15023 15063 |
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Niedersächsisches Online-Archiv NOA |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Brock, Charles A. Froyd, Karl D. Dollner, Maximilian Williamson, Christina J. Schill, Gregory Murphy, Daniel M. Wagner, Nicholas J. Kupc, Agnieszka Jimenez, Jose L. Campuzano-Jost, Pedro Nault, Benjamin A. Schroder, Jason C. Day, Douglas A. Price, Derek J. Weinzierl, Bernadett Schwarz, Joshua P. Katich, Joseph M. Wang, Siyuan Zeng, Linghan Weber, Rodney Dibb, Jack Scheuer, Eric Diskin, Glenn S. DiGangi, Joshua P. Bui, ThaoPaul Dean-Day, Jonathan M. Thompson, Chelsea R. Peischl, Jeff Ryerson, Thomas B. Bourgeois, Ilann Daube, Bruce C. Commane, Róisín Wofsy, Steven C. Ambient aerosol properties in the remote atmosphere from global-scale in situ measurements |
topic_facet |
article Verlagsveröffentlichung |
description |
In situ measurements of aerosol microphysical, chemical, and optical properties were made during global-scale flights from 2016–2018 as part of the Atmospheric Tomography Mission (ATom). The NASA DC-8 aircraft flew from ∼ 84∘ N to ∼ 86∘ S latitude over the Pacific, Atlantic, Arctic, and Southern oceans while profiling nearly continuously between altitudes of ∼ 160 m and ∼ 12 km. These global circuits were made once each season. Particle size distributions measured in the aircraft cabin at dry conditions and with an underwing probe at ambient conditions were combined with bulk and single-particle composition observations and measurements of water vapor, pressure, and temperature to estimate aerosol hygroscopicity and hygroscopic growth factors and calculate size distributions at ambient relative humidity. These reconstructed, composition-resolved ambient size distributions were used to estimate intensive and extensive aerosol properties, including single-scatter albedo, the asymmetry parameter, extinction, absorption, Ångström exponents, and aerosol optical depth (AOD) at several wavelengths, as well as cloud condensation nuclei (CCN) concentrations at fixed supersaturations and lognormal fits to four modes. Dry extinction and absorption were compared with direct in situ measurements, and AOD derived from the extinction profiles was compared with remotely sensed AOD measurements from the ground-based Aerosol Robotic Network (AERONET); this comparison showed no substantial bias. The purpose of this work is to describe the methodology by which ambient aerosol properties are estimated from the in situ measurements, provide statistical descriptions of the aerosol characteristics of different remote air mass types, examine the contributions to AOD from different aerosol types in different air masses, and provide an entry point to the ATom aerosol database. The contributions of different aerosol types (dust, sea salt, biomass burning, etc.) to AOD generally align with expectations based on location of the profiles ... |
format |
Article in Journal/Newspaper |
author |
Brock, Charles A. Froyd, Karl D. Dollner, Maximilian Williamson, Christina J. Schill, Gregory Murphy, Daniel M. Wagner, Nicholas J. Kupc, Agnieszka Jimenez, Jose L. Campuzano-Jost, Pedro Nault, Benjamin A. Schroder, Jason C. Day, Douglas A. Price, Derek J. Weinzierl, Bernadett Schwarz, Joshua P. Katich, Joseph M. Wang, Siyuan Zeng, Linghan Weber, Rodney Dibb, Jack Scheuer, Eric Diskin, Glenn S. DiGangi, Joshua P. Bui, ThaoPaul Dean-Day, Jonathan M. Thompson, Chelsea R. Peischl, Jeff Ryerson, Thomas B. Bourgeois, Ilann Daube, Bruce C. Commane, Róisín Wofsy, Steven C. |
author_facet |
Brock, Charles A. Froyd, Karl D. Dollner, Maximilian Williamson, Christina J. Schill, Gregory Murphy, Daniel M. Wagner, Nicholas J. Kupc, Agnieszka Jimenez, Jose L. Campuzano-Jost, Pedro Nault, Benjamin A. Schroder, Jason C. Day, Douglas A. Price, Derek J. Weinzierl, Bernadett Schwarz, Joshua P. Katich, Joseph M. Wang, Siyuan Zeng, Linghan Weber, Rodney Dibb, Jack Scheuer, Eric Diskin, Glenn S. DiGangi, Joshua P. Bui, ThaoPaul Dean-Day, Jonathan M. Thompson, Chelsea R. Peischl, Jeff Ryerson, Thomas B. Bourgeois, Ilann Daube, Bruce C. Commane, Róisín Wofsy, Steven C. |
author_sort |
Brock, Charles A. |
title |
Ambient aerosol properties in the remote atmosphere from global-scale in situ measurements |
title_short |
Ambient aerosol properties in the remote atmosphere from global-scale in situ measurements |
title_full |
Ambient aerosol properties in the remote atmosphere from global-scale in situ measurements |
title_fullStr |
Ambient aerosol properties in the remote atmosphere from global-scale in situ measurements |
title_full_unstemmed |
Ambient aerosol properties in the remote atmosphere from global-scale in situ measurements |
title_sort |
ambient aerosol properties in the remote atmosphere from global-scale in situ measurements |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/acp-21-15023-2021 https://noa.gwlb.de/receive/cop_mods_00058353 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058002/acp-21-15023-2021.pdf https://acp.copernicus.org/articles/21/15023/2021/acp-21-15023-2021.pdf |
genre |
Aerosol Robotic Network albedo Atlantic Arctic Atlantic-Arctic |
genre_facet |
Aerosol Robotic Network albedo Atlantic Arctic Atlantic-Arctic |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-21-15023-2021 https://noa.gwlb.de/receive/cop_mods_00058353 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058002/acp-21-15023-2021.pdf https://acp.copernicus.org/articles/21/15023/2021/acp-21-15023-2021.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-21-15023-2021 |
container_title |
Atmospheric Chemistry and Physics |
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21 |
container_issue |
19 |
container_start_page |
15023 |
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15063 |
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1810447108301389824 |