Characterization of Moisture Sources for Austral Seas and Relationship with Sea Ice Concentration
In this study, the moisture sources acting over each sea (Weddell, King Haakon VII, East Antarctic, Amundsen-Bellingshausen, and Ross-Amundsen) of the Southern Ocean during 1980–2015 are identified with the FLEXPART Lagrangian model and by using two approaches: backward and forward analyses. Backwar...
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ftmdpi:oai:mdpi.com:/2073-4433/10/10/627/ 2023-08-20T04:00:43+02:00 Characterization of Moisture Sources for Austral Seas and Relationship with Sea Ice Concentration Michelle Simões Reboita Raquel Nieto Rosmeri P. da Rocha Anita Drumond Marta Vázquez Luis Gimeno agris 2019-10-17 application/pdf https://doi.org/10.3390/atmos10100627 EN eng Multidisciplinary Digital Publishing Institute Biosphere/Hydrosphere/Land–Atmosphere Interactions https://dx.doi.org/10.3390/atmos10100627 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 10; Issue 10; Pages: 627 moisture sources moisture sink Southern Ocean Sea sea ice concentration Lagrangian analysis Text 2019 ftmdpi https://doi.org/10.3390/atmos10100627 2023-07-31T22:42:16Z In this study, the moisture sources acting over each sea (Weddell, King Haakon VII, East Antarctic, Amundsen-Bellingshausen, and Ross-Amundsen) of the Southern Ocean during 1980–2015 are identified with the FLEXPART Lagrangian model and by using two approaches: backward and forward analyses. Backward analysis provides the moisture sources (positive values of Evaporation minus Precipitation, E − P > 0), while forward analysis identifies the moisture sinks (E − P < 0). The most important moisture sources for the austral seas come from midlatitude storm tracks, reaching a maximum between austral winter and spring. The maximum in moisture sinks, in general, occurs in austral end-summer/autumn. There is a negative correlation (higher with 2-months lagged) between moisture sink and sea ice concentration (SIC), indicating that an increase in the moisture sink can be associated with the decrease in the SIC. This correlation is investigated by focusing on extremes (high and low) of the moisture sink over the Weddell Sea. Periods of high (low) moisture sinks show changes in the atmospheric circulation with a consequent positive (negative) temperature anomaly contributing to decreasing (increasing) the SIC over the Weddell Sea. This study also suggests possible relationships between the positive (negative) phase of the Southern Annular Mode with the increase (decrease) in the moisture that travels from the midlatitude sources to the Weddell Sea. Text Antarc* Antarctic Sea ice Southern Ocean Weddell Sea MDPI Open Access Publishing Antarctic Austral Southern Ocean Weddell Weddell Sea Atmosphere 10 10 627 |
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Open Polar |
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MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
moisture sources moisture sink Southern Ocean Sea sea ice concentration Lagrangian analysis |
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moisture sources moisture sink Southern Ocean Sea sea ice concentration Lagrangian analysis Michelle Simões Reboita Raquel Nieto Rosmeri P. da Rocha Anita Drumond Marta Vázquez Luis Gimeno Characterization of Moisture Sources for Austral Seas and Relationship with Sea Ice Concentration |
topic_facet |
moisture sources moisture sink Southern Ocean Sea sea ice concentration Lagrangian analysis |
description |
In this study, the moisture sources acting over each sea (Weddell, King Haakon VII, East Antarctic, Amundsen-Bellingshausen, and Ross-Amundsen) of the Southern Ocean during 1980–2015 are identified with the FLEXPART Lagrangian model and by using two approaches: backward and forward analyses. Backward analysis provides the moisture sources (positive values of Evaporation minus Precipitation, E − P > 0), while forward analysis identifies the moisture sinks (E − P < 0). The most important moisture sources for the austral seas come from midlatitude storm tracks, reaching a maximum between austral winter and spring. The maximum in moisture sinks, in general, occurs in austral end-summer/autumn. There is a negative correlation (higher with 2-months lagged) between moisture sink and sea ice concentration (SIC), indicating that an increase in the moisture sink can be associated with the decrease in the SIC. This correlation is investigated by focusing on extremes (high and low) of the moisture sink over the Weddell Sea. Periods of high (low) moisture sinks show changes in the atmospheric circulation with a consequent positive (negative) temperature anomaly contributing to decreasing (increasing) the SIC over the Weddell Sea. This study also suggests possible relationships between the positive (negative) phase of the Southern Annular Mode with the increase (decrease) in the moisture that travels from the midlatitude sources to the Weddell Sea. |
format |
Text |
author |
Michelle Simões Reboita Raquel Nieto Rosmeri P. da Rocha Anita Drumond Marta Vázquez Luis Gimeno |
author_facet |
Michelle Simões Reboita Raquel Nieto Rosmeri P. da Rocha Anita Drumond Marta Vázquez Luis Gimeno |
author_sort |
Michelle Simões Reboita |
title |
Characterization of Moisture Sources for Austral Seas and Relationship with Sea Ice Concentration |
title_short |
Characterization of Moisture Sources for Austral Seas and Relationship with Sea Ice Concentration |
title_full |
Characterization of Moisture Sources for Austral Seas and Relationship with Sea Ice Concentration |
title_fullStr |
Characterization of Moisture Sources for Austral Seas and Relationship with Sea Ice Concentration |
title_full_unstemmed |
Characterization of Moisture Sources for Austral Seas and Relationship with Sea Ice Concentration |
title_sort |
characterization of moisture sources for austral seas and relationship with sea ice concentration |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2019 |
url |
https://doi.org/10.3390/atmos10100627 |
op_coverage |
agris |
geographic |
Antarctic Austral Southern Ocean Weddell Weddell Sea |
geographic_facet |
Antarctic Austral Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Antarctic Sea ice Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean Weddell Sea |
op_source |
Atmosphere; Volume 10; Issue 10; Pages: 627 |
op_relation |
Biosphere/Hydrosphere/Land–Atmosphere Interactions https://dx.doi.org/10.3390/atmos10100627 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos10100627 |
container_title |
Atmosphere |
container_volume |
10 |
container_issue |
10 |
container_start_page |
627 |
_version_ |
1774719917203914752 |