From Amazonia to southern Africa: atmospheric moisture transport through low‐level jets and atmospheric rivers
Abstract A Lagrangian analysis is applied to identify the main moisture source areas associated with atmospheric rivers (ARs) making landfall along the west coast of South Africa during the extended austral winter months from 1980 to 2014. The results show that areas that provide the anomalous uptak...
Published in: | Annals of the New York Academy of Sciences |
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crwiley:10.1111/nyas.13960 2024-09-30T14:43:33+00:00 From Amazonia to southern Africa: atmospheric moisture transport through low‐level jets and atmospheric rivers Ramos, Alexandre M. Blamey, Ross C. Algarra, Iago Nieto, Raquel Gimeno, Luis Tomé, Ricardo Reason, Chris J.C. Trigo, Ricardo M. Natural Environment Research Council Ministerio de Economía y Competitividad Fundação para a Ciência e a Tecnologia Water Research Commission Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia 2018 http://dx.doi.org/10.1111/nyas.13960 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fnyas.13960 https://nyaspubs.onlinelibrary.wiley.com/doi/pdf/10.1111/nyas.13960 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Annals of the New York Academy of Sciences volume 1436, issue 1, page 217-230 ISSN 0077-8923 1749-6632 journal-article 2018 crwiley https://doi.org/10.1111/nyas.13960 2024-09-11T04:14:56Z Abstract A Lagrangian analysis is applied to identify the main moisture source areas associated with atmospheric rivers (ARs) making landfall along the west coast of South Africa during the extended austral winter months from 1980 to 2014. The results show that areas that provide the anomalous uptake of moisture can be categorized into four regions: (1) the South Atlantic Ocean between 10°S and 30°S, (2) a clear local maximum in the eastern South Atlantic, (3) a continental source of anomalous uptake to the north of the Western Cape, and (4) over South America at a distance of more than 7000 km from the target region. It emerges that the South American moisture source can be linked to a particular phase of the South American low‐level jet, known as a no Chaco jet event (NCJE), which transports moisture to the western and central South Atlantic basin. Concisely, we provide strong evidence that the two margins of the South Atlantic Ocean appear connected by two meteorological structures, with the NCJE playing a key role of transporting moisture from South America to the western and central South Atlantic basin, feeding the AR that transports some of the moisture to the west coast of South Africa. Article in Journal/Newspaper South Atlantic Ocean Wiley Online Library Austral Chaco ENVELOPE(-60.583,-60.583,-63.033,-63.033) Annals of the New York Academy of Sciences 1436 1 217 230 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract A Lagrangian analysis is applied to identify the main moisture source areas associated with atmospheric rivers (ARs) making landfall along the west coast of South Africa during the extended austral winter months from 1980 to 2014. The results show that areas that provide the anomalous uptake of moisture can be categorized into four regions: (1) the South Atlantic Ocean between 10°S and 30°S, (2) a clear local maximum in the eastern South Atlantic, (3) a continental source of anomalous uptake to the north of the Western Cape, and (4) over South America at a distance of more than 7000 km from the target region. It emerges that the South American moisture source can be linked to a particular phase of the South American low‐level jet, known as a no Chaco jet event (NCJE), which transports moisture to the western and central South Atlantic basin. Concisely, we provide strong evidence that the two margins of the South Atlantic Ocean appear connected by two meteorological structures, with the NCJE playing a key role of transporting moisture from South America to the western and central South Atlantic basin, feeding the AR that transports some of the moisture to the west coast of South Africa. |
author2 |
Natural Environment Research Council Ministerio de Economía y Competitividad Fundação para a Ciência e a Tecnologia Water Research Commission Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia |
format |
Article in Journal/Newspaper |
author |
Ramos, Alexandre M. Blamey, Ross C. Algarra, Iago Nieto, Raquel Gimeno, Luis Tomé, Ricardo Reason, Chris J.C. Trigo, Ricardo M. |
spellingShingle |
Ramos, Alexandre M. Blamey, Ross C. Algarra, Iago Nieto, Raquel Gimeno, Luis Tomé, Ricardo Reason, Chris J.C. Trigo, Ricardo M. From Amazonia to southern Africa: atmospheric moisture transport through low‐level jets and atmospheric rivers |
author_facet |
Ramos, Alexandre M. Blamey, Ross C. Algarra, Iago Nieto, Raquel Gimeno, Luis Tomé, Ricardo Reason, Chris J.C. Trigo, Ricardo M. |
author_sort |
Ramos, Alexandre M. |
title |
From Amazonia to southern Africa: atmospheric moisture transport through low‐level jets and atmospheric rivers |
title_short |
From Amazonia to southern Africa: atmospheric moisture transport through low‐level jets and atmospheric rivers |
title_full |
From Amazonia to southern Africa: atmospheric moisture transport through low‐level jets and atmospheric rivers |
title_fullStr |
From Amazonia to southern Africa: atmospheric moisture transport through low‐level jets and atmospheric rivers |
title_full_unstemmed |
From Amazonia to southern Africa: atmospheric moisture transport through low‐level jets and atmospheric rivers |
title_sort |
from amazonia to southern africa: atmospheric moisture transport through low‐level jets and atmospheric rivers |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1111/nyas.13960 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fnyas.13960 https://nyaspubs.onlinelibrary.wiley.com/doi/pdf/10.1111/nyas.13960 |
long_lat |
ENVELOPE(-60.583,-60.583,-63.033,-63.033) |
geographic |
Austral Chaco |
geographic_facet |
Austral Chaco |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
Annals of the New York Academy of Sciences volume 1436, issue 1, page 217-230 ISSN 0077-8923 1749-6632 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/nyas.13960 |
container_title |
Annals of the New York Academy of Sciences |
container_volume |
1436 |
container_issue |
1 |
container_start_page |
217 |
op_container_end_page |
230 |
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1811645309187522560 |