Spatial Distribution of Aerosol Characteristics over the South Atlantic and Southern Ocean Using Multiyear (2004–2021) Measurements from Russian Antarctic Expeditions
Since 2004, we have carried out yearly measurements of physicochemical aerosol characteristics onboard research vessels at Southern Hemisphere high latitudes (34–72° S; 45° W–110° E). In this work, we statistically generalize the results from multiyear (2004–2021) measurements in this area of the ae...
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ftdoajarticles:oai:doaj.org/article:a9bd610608864dfa81b0dcf7e77da69a 2023-05-15T14:04:01+02:00 Spatial Distribution of Aerosol Characteristics over the South Atlantic and Southern Ocean Using Multiyear (2004–2021) Measurements from Russian Antarctic Expeditions Sergey M. Sakerin Liudmila P. Golobokova Dmitry M. Kabanov Olga I. Khuriganowa Viktor V. Pol’kin Vladimir F. Radionov Olga R. Sidorova Yuri S. Turchinovich 2022-03-01T00:00:00Z https://doi.org/10.3390/atmos13030427 https://doaj.org/article/a9bd610608864dfa81b0dcf7e77da69a EN eng MDPI AG https://www.mdpi.com/2073-4433/13/3/427 https://doaj.org/toc/2073-4433 doi:10.3390/atmos13030427 2073-4433 https://doaj.org/article/a9bd610608864dfa81b0dcf7e77da69a Atmosphere, Vol 13, Iss 427, p 427 (2022) aerosol black carbon ionic composition spatial distribution Southern Ocean South Atlantic Meteorology. Climatology QC851-999 article 2022 ftdoajarticles https://doi.org/10.3390/atmos13030427 2022-12-31T03:58:48Z Since 2004, we have carried out yearly measurements of physicochemical aerosol characteristics onboard research vessels at Southern Hemisphere high latitudes (34–72° S; 45° W–110° E). In this work, we statistically generalize the results from multiyear (2004–2021) measurements in this area of the aerosol optical depth (AOD) of the atmosphere, concentrations of aerosol and equivalent black carbon (EBC), as well as the ionic composition of aerosol. A common regularity was that the aerosol characteristics decreased with increasing latitude up to the Antarctic coast, where the aerosol content corresponded to the global background level. Between Africa and Antarctica, AOD decreased from 0.07 to 0.024, the particle volume decreased from 5.5 to 0.55 µm 3 /cm 3 , EBC decreased from 68.1 to 17.4 ng/m 3 , and the summed ion concentration decreased from 24.5 to 2.5 µg/m 3 . Against the background of the common tendency of the latitude decrease in aerosol characteristics, we discerned a secondary maximum (AOD and ion concentrations) or a plateau (aerosol and EBC concentrations). The obtained spatial distribution of aerosol characteristics qualitatively agreed with the model-based MERRA-2 reanalysis data, but showed quantitative differences: the model AOD values were overestimated (by 0.015, on average); while the EBC concentrations were underestimated (by 21.7 ng/m 3 ). An interesting feature was found in the aerosol spatial distribution in the region of Antarctic islands: at a distance of 300 km from the islands, the concentrations of EBC decreased on average by 29%, while the aerosol content increased by a factor of 2.5. Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Directory of Open Access Journals: DOAJ Articles Antarctic Merra ENVELOPE(12.615,12.615,65.816,65.816) Southern Ocean The Antarctic Atmosphere 13 3 427 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
aerosol black carbon ionic composition spatial distribution Southern Ocean South Atlantic Meteorology. Climatology QC851-999 |
spellingShingle |
aerosol black carbon ionic composition spatial distribution Southern Ocean South Atlantic Meteorology. Climatology QC851-999 Sergey M. Sakerin Liudmila P. Golobokova Dmitry M. Kabanov Olga I. Khuriganowa Viktor V. Pol’kin Vladimir F. Radionov Olga R. Sidorova Yuri S. Turchinovich Spatial Distribution of Aerosol Characteristics over the South Atlantic and Southern Ocean Using Multiyear (2004–2021) Measurements from Russian Antarctic Expeditions |
topic_facet |
aerosol black carbon ionic composition spatial distribution Southern Ocean South Atlantic Meteorology. Climatology QC851-999 |
description |
Since 2004, we have carried out yearly measurements of physicochemical aerosol characteristics onboard research vessels at Southern Hemisphere high latitudes (34–72° S; 45° W–110° E). In this work, we statistically generalize the results from multiyear (2004–2021) measurements in this area of the aerosol optical depth (AOD) of the atmosphere, concentrations of aerosol and equivalent black carbon (EBC), as well as the ionic composition of aerosol. A common regularity was that the aerosol characteristics decreased with increasing latitude up to the Antarctic coast, where the aerosol content corresponded to the global background level. Between Africa and Antarctica, AOD decreased from 0.07 to 0.024, the particle volume decreased from 5.5 to 0.55 µm 3 /cm 3 , EBC decreased from 68.1 to 17.4 ng/m 3 , and the summed ion concentration decreased from 24.5 to 2.5 µg/m 3 . Against the background of the common tendency of the latitude decrease in aerosol characteristics, we discerned a secondary maximum (AOD and ion concentrations) or a plateau (aerosol and EBC concentrations). The obtained spatial distribution of aerosol characteristics qualitatively agreed with the model-based MERRA-2 reanalysis data, but showed quantitative differences: the model AOD values were overestimated (by 0.015, on average); while the EBC concentrations were underestimated (by 21.7 ng/m 3 ). An interesting feature was found in the aerosol spatial distribution in the region of Antarctic islands: at a distance of 300 km from the islands, the concentrations of EBC decreased on average by 29%, while the aerosol content increased by a factor of 2.5. |
format |
Article in Journal/Newspaper |
author |
Sergey M. Sakerin Liudmila P. Golobokova Dmitry M. Kabanov Olga I. Khuriganowa Viktor V. Pol’kin Vladimir F. Radionov Olga R. Sidorova Yuri S. Turchinovich |
author_facet |
Sergey M. Sakerin Liudmila P. Golobokova Dmitry M. Kabanov Olga I. Khuriganowa Viktor V. Pol’kin Vladimir F. Radionov Olga R. Sidorova Yuri S. Turchinovich |
author_sort |
Sergey M. Sakerin |
title |
Spatial Distribution of Aerosol Characteristics over the South Atlantic and Southern Ocean Using Multiyear (2004–2021) Measurements from Russian Antarctic Expeditions |
title_short |
Spatial Distribution of Aerosol Characteristics over the South Atlantic and Southern Ocean Using Multiyear (2004–2021) Measurements from Russian Antarctic Expeditions |
title_full |
Spatial Distribution of Aerosol Characteristics over the South Atlantic and Southern Ocean Using Multiyear (2004–2021) Measurements from Russian Antarctic Expeditions |
title_fullStr |
Spatial Distribution of Aerosol Characteristics over the South Atlantic and Southern Ocean Using Multiyear (2004–2021) Measurements from Russian Antarctic Expeditions |
title_full_unstemmed |
Spatial Distribution of Aerosol Characteristics over the South Atlantic and Southern Ocean Using Multiyear (2004–2021) Measurements from Russian Antarctic Expeditions |
title_sort |
spatial distribution of aerosol characteristics over the south atlantic and southern ocean using multiyear (2004–2021) measurements from russian antarctic expeditions |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/atmos13030427 https://doaj.org/article/a9bd610608864dfa81b0dcf7e77da69a |
long_lat |
ENVELOPE(12.615,12.615,65.816,65.816) |
geographic |
Antarctic Merra Southern Ocean The Antarctic |
geographic_facet |
Antarctic Merra Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
Atmosphere, Vol 13, Iss 427, p 427 (2022) |
op_relation |
https://www.mdpi.com/2073-4433/13/3/427 https://doaj.org/toc/2073-4433 doi:10.3390/atmos13030427 2073-4433 https://doaj.org/article/a9bd610608864dfa81b0dcf7e77da69a |
op_doi |
https://doi.org/10.3390/atmos13030427 |
container_title |
Atmosphere |
container_volume |
13 |
container_issue |
3 |
container_start_page |
427 |
_version_ |
1766274951457800192 |