Biogenic aerosol in central East Antarctic Plateau as a proxy for the ocean-atmosphere interaction in the Southern Ocean
Ten years of data of biogenic aerosol (methane sulfonic acid, MSA, and non-sea salt sulfate, nssSO42−) collected at Concordia Station in the East Antarctic plateau (75° 06′ S, 123° 20′ E) are interpreted as a function of the Southern Annular Mode (SAM), Chlorophyll-a concentration (Chl-a; a proxy fo...
Published in: | Science of The Total Environment |
---|---|
Main Authors: | , , , , , , , , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | https://hdl.handle.net/20.500.12079/65870 https://doi.org/10.1016/j.scitotenv.2021.151285 https://www.sciencedirect.com/science/article/pii/S0048969721063634 |
id |
ftenea:oai:iris.enea.it:20.500.12079/65870 |
---|---|
record_format |
openpolar |
spelling |
ftenea:oai:iris.enea.it:20.500.12079/65870 2024-04-21T07:47:26+00:00 Biogenic aerosol in central East Antarctic Plateau as a proxy for the ocean-atmosphere interaction in the Southern Ocean Becagli S. Marchese C. Caiazzo L. Ciardini V. Lazzara L. Mori G. Nuccio C. Scarchilli C. Severi M. Traversi R. Becagli, S. Marchese, C. Caiazzo, L. Ciardini, V. Lazzara, L. Mori, G. Nuccio, C. Scarchilli, C. Severi, M. Traversi, R. 2022 https://hdl.handle.net/20.500.12079/65870 https://doi.org/10.1016/j.scitotenv.2021.151285 https://www.sciencedirect.com/science/article/pii/S0048969721063634 eng eng volume:810 firstpage:151285 numberofpages:14 journal:SCIENCE OF THE TOTAL ENVIRONMENT https://hdl.handle.net/20.500.12079/65870 doi:10.1016/j.scitotenv.2021.151285 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85118750444 https://www.sciencedirect.com/science/article/pii/S0048969721063634 Southern Annular Mode Biogenic aerosol Chlorophyll-a East Antarctic Plateau Methane sulfonic acid Non-sea-salt sulfate Sea ice info:eu-repo/semantics/article 2022 ftenea https://doi.org/20.500.12079/6587010.1016/j.scitotenv.2021.151285 2024-03-27T15:05:15Z Ten years of data of biogenic aerosol (methane sulfonic acid, MSA, and non-sea salt sulfate, nssSO42−) collected at Concordia Station in the East Antarctic plateau (75° 06′ S, 123° 20′ E) are interpreted as a function of the Southern Annular Mode (SAM), Chlorophyll-a concentration (Chl-a; a proxy for phytoplankton biomass), sea ice extent and area. It is possible to draw three different scenarios that link these parameters in early, middle, and late summer. In early summer, the biogenic aerosol is significantly correlated to sea ice retreats through the phytoplankton biomass increases. Chl-a shows a significant correlation with nssSO42− in the finest fraction (< 1 μm). In contrast, only Chl-a in West Pacific and Indian Ocean sectors correlates with MSA in the coarse fraction. The transport routes towards the inner Antarctic plateau and aerosol formation processes could explain the different correlation patterns of the two compounds both resulting from the DMS oxidation. In mid-summer, Chl-a concentrations are at the maximum and are not related to sea ice melting. Due to the complexity of transport processes of air masses towards the Antarctic plateau, the MSA concentrations are low and not related to Chl-a concentration. In late summer, MSA and nssSO42− present the highest concentrations in their submicrometric aerosol fraction, and both are significantly correlated with Chl-a but not with the sea ice. In early and mid-summer, the enhanced efficiency of transport processes from all the surrounding oceanic sectors with air masses traveling at low elevation can explain the highest concentrations of nssSO42− and especially MSA. Finally, considering the entire time series, MSA shows significant year-to-year variability. This variability is significantly correlated with SAM but with a different time lag in early (0-month lag) and late summer (4-months lag). This correlation likely occurs through the effect of the SAM on phytoplankton blooms. Article in Journal/Newspaper Antarc* Antarctic Sea ice Southern Ocean ENEA-IRIS Open Archive (Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile) Science of The Total Environment 810 151285 |
institution |
Open Polar |
collection |
ENEA-IRIS Open Archive (Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile) |
op_collection_id |
ftenea |
language |
English |
topic |
Southern Annular Mode Biogenic aerosol Chlorophyll-a East Antarctic Plateau Methane sulfonic acid Non-sea-salt sulfate Sea ice |
spellingShingle |
Southern Annular Mode Biogenic aerosol Chlorophyll-a East Antarctic Plateau Methane sulfonic acid Non-sea-salt sulfate Sea ice Becagli S. Marchese C. Caiazzo L. Ciardini V. Lazzara L. Mori G. Nuccio C. Scarchilli C. Severi M. Traversi R. Biogenic aerosol in central East Antarctic Plateau as a proxy for the ocean-atmosphere interaction in the Southern Ocean |
topic_facet |
Southern Annular Mode Biogenic aerosol Chlorophyll-a East Antarctic Plateau Methane sulfonic acid Non-sea-salt sulfate Sea ice |
description |
Ten years of data of biogenic aerosol (methane sulfonic acid, MSA, and non-sea salt sulfate, nssSO42−) collected at Concordia Station in the East Antarctic plateau (75° 06′ S, 123° 20′ E) are interpreted as a function of the Southern Annular Mode (SAM), Chlorophyll-a concentration (Chl-a; a proxy for phytoplankton biomass), sea ice extent and area. It is possible to draw three different scenarios that link these parameters in early, middle, and late summer. In early summer, the biogenic aerosol is significantly correlated to sea ice retreats through the phytoplankton biomass increases. Chl-a shows a significant correlation with nssSO42− in the finest fraction (< 1 μm). In contrast, only Chl-a in West Pacific and Indian Ocean sectors correlates with MSA in the coarse fraction. The transport routes towards the inner Antarctic plateau and aerosol formation processes could explain the different correlation patterns of the two compounds both resulting from the DMS oxidation. In mid-summer, Chl-a concentrations are at the maximum and are not related to sea ice melting. Due to the complexity of transport processes of air masses towards the Antarctic plateau, the MSA concentrations are low and not related to Chl-a concentration. In late summer, MSA and nssSO42− present the highest concentrations in their submicrometric aerosol fraction, and both are significantly correlated with Chl-a but not with the sea ice. In early and mid-summer, the enhanced efficiency of transport processes from all the surrounding oceanic sectors with air masses traveling at low elevation can explain the highest concentrations of nssSO42− and especially MSA. Finally, considering the entire time series, MSA shows significant year-to-year variability. This variability is significantly correlated with SAM but with a different time lag in early (0-month lag) and late summer (4-months lag). This correlation likely occurs through the effect of the SAM on phytoplankton blooms. |
author2 |
Becagli, S. Marchese, C. Caiazzo, L. Ciardini, V. Lazzara, L. Mori, G. Nuccio, C. Scarchilli, C. Severi, M. Traversi, R. |
format |
Article in Journal/Newspaper |
author |
Becagli S. Marchese C. Caiazzo L. Ciardini V. Lazzara L. Mori G. Nuccio C. Scarchilli C. Severi M. Traversi R. |
author_facet |
Becagli S. Marchese C. Caiazzo L. Ciardini V. Lazzara L. Mori G. Nuccio C. Scarchilli C. Severi M. Traversi R. |
author_sort |
Becagli S. |
title |
Biogenic aerosol in central East Antarctic Plateau as a proxy for the ocean-atmosphere interaction in the Southern Ocean |
title_short |
Biogenic aerosol in central East Antarctic Plateau as a proxy for the ocean-atmosphere interaction in the Southern Ocean |
title_full |
Biogenic aerosol in central East Antarctic Plateau as a proxy for the ocean-atmosphere interaction in the Southern Ocean |
title_fullStr |
Biogenic aerosol in central East Antarctic Plateau as a proxy for the ocean-atmosphere interaction in the Southern Ocean |
title_full_unstemmed |
Biogenic aerosol in central East Antarctic Plateau as a proxy for the ocean-atmosphere interaction in the Southern Ocean |
title_sort |
biogenic aerosol in central east antarctic plateau as a proxy for the ocean-atmosphere interaction in the southern ocean |
publishDate |
2022 |
url |
https://hdl.handle.net/20.500.12079/65870 https://doi.org/10.1016/j.scitotenv.2021.151285 https://www.sciencedirect.com/science/article/pii/S0048969721063634 |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_relation |
volume:810 firstpage:151285 numberofpages:14 journal:SCIENCE OF THE TOTAL ENVIRONMENT https://hdl.handle.net/20.500.12079/65870 doi:10.1016/j.scitotenv.2021.151285 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85118750444 https://www.sciencedirect.com/science/article/pii/S0048969721063634 |
op_doi |
https://doi.org/20.500.12079/6587010.1016/j.scitotenv.2021.151285 |
container_title |
Science of The Total Environment |
container_volume |
810 |
container_start_page |
151285 |
_version_ |
1796946440556118016 |