Seasonality and Dynamics of Atmospheric Teleconnection from the Tropical Indian Ocean and the Western Pacific to West Antarctica
The global impact of the tropical Indian Ocean and the Western Pacific (IOWP) is expected to increase in the future because this area has been continuously warming due to global warming; however, the impact of the IOWP forcing on West Antarctica has not been clearly revealed. Recently, ice loss in W...
Published in: | Atmosphere |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
MDPI AG
2021
|
Subjects: | |
Online Access: | https://doi.org/10.3390/atmos12070849 https://doaj.org/article/8fa3dd182c644c459e58b6740e86cf65 |
id |
ftdoajarticles:oai:doaj.org/article:8fa3dd182c644c459e58b6740e86cf65 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:8fa3dd182c644c459e58b6740e86cf65 2023-05-15T13:58:44+02:00 Seasonality and Dynamics of Atmospheric Teleconnection from the Tropical Indian Ocean and the Western Pacific to West Antarctica Hyun-Ju Lee Emilia-Kyung Jin 2021-06-01T00:00:00Z https://doi.org/10.3390/atmos12070849 https://doaj.org/article/8fa3dd182c644c459e58b6740e86cf65 EN eng MDPI AG https://www.mdpi.com/2073-4433/12/7/849 https://doaj.org/toc/2073-4433 doi:10.3390/atmos12070849 2073-4433 https://doaj.org/article/8fa3dd182c644c459e58b6740e86cf65 Atmosphere, Vol 12, Iss 849, p 849 (2021) tropical-Antarctic teleconnection barotropic Rossby wave theory Indian Ocean and Western Pacific forcing climate of West Antarctica Meteorology. Climatology QC851-999 article 2021 ftdoajarticles https://doi.org/10.3390/atmos12070849 2022-12-31T06:46:56Z The global impact of the tropical Indian Ocean and the Western Pacific (IOWP) is expected to increase in the future because this area has been continuously warming due to global warming; however, the impact of the IOWP forcing on West Antarctica has not been clearly revealed. Recently, ice loss in West Antarctica has been accelerated due to the basal melting of ice shelves. This study examines the characteristics and formation mechanisms of the teleconnection between the IOWP and West Antarctica for each season using the Rossby wave theory. To explicitly understand the role of the background flow in the teleconnection process, we conduct linear baroclinic model (LBM) simulations in which the background flow is initialized differently depending on the season. During JJA/SON, the barotropic Rossby wave generated by the IOWP forcing propagates into the Southern Hemisphere through the climatological northerly wind and arrives in West Antarctica; meanwhile, during DJF/MAM, the wave can hardly penetrate the tropical region. This indicates that during the Austral winter and spring, the IOWP forcing and IOWP-region variabilities such as the Indian Ocean Dipole (IOD) and Indian Ocean Basin (IOB) modes should paid more attention to in order to investigate the ice change in West Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Shelves West Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic Austral West Antarctica Pacific Indian Atmosphere 12 7 849 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
tropical-Antarctic teleconnection barotropic Rossby wave theory Indian Ocean and Western Pacific forcing climate of West Antarctica Meteorology. Climatology QC851-999 |
spellingShingle |
tropical-Antarctic teleconnection barotropic Rossby wave theory Indian Ocean and Western Pacific forcing climate of West Antarctica Meteorology. Climatology QC851-999 Hyun-Ju Lee Emilia-Kyung Jin Seasonality and Dynamics of Atmospheric Teleconnection from the Tropical Indian Ocean and the Western Pacific to West Antarctica |
topic_facet |
tropical-Antarctic teleconnection barotropic Rossby wave theory Indian Ocean and Western Pacific forcing climate of West Antarctica Meteorology. Climatology QC851-999 |
description |
The global impact of the tropical Indian Ocean and the Western Pacific (IOWP) is expected to increase in the future because this area has been continuously warming due to global warming; however, the impact of the IOWP forcing on West Antarctica has not been clearly revealed. Recently, ice loss in West Antarctica has been accelerated due to the basal melting of ice shelves. This study examines the characteristics and formation mechanisms of the teleconnection between the IOWP and West Antarctica for each season using the Rossby wave theory. To explicitly understand the role of the background flow in the teleconnection process, we conduct linear baroclinic model (LBM) simulations in which the background flow is initialized differently depending on the season. During JJA/SON, the barotropic Rossby wave generated by the IOWP forcing propagates into the Southern Hemisphere through the climatological northerly wind and arrives in West Antarctica; meanwhile, during DJF/MAM, the wave can hardly penetrate the tropical region. This indicates that during the Austral winter and spring, the IOWP forcing and IOWP-region variabilities such as the Indian Ocean Dipole (IOD) and Indian Ocean Basin (IOB) modes should paid more attention to in order to investigate the ice change in West Antarctica. |
format |
Article in Journal/Newspaper |
author |
Hyun-Ju Lee Emilia-Kyung Jin |
author_facet |
Hyun-Ju Lee Emilia-Kyung Jin |
author_sort |
Hyun-Ju Lee |
title |
Seasonality and Dynamics of Atmospheric Teleconnection from the Tropical Indian Ocean and the Western Pacific to West Antarctica |
title_short |
Seasonality and Dynamics of Atmospheric Teleconnection from the Tropical Indian Ocean and the Western Pacific to West Antarctica |
title_full |
Seasonality and Dynamics of Atmospheric Teleconnection from the Tropical Indian Ocean and the Western Pacific to West Antarctica |
title_fullStr |
Seasonality and Dynamics of Atmospheric Teleconnection from the Tropical Indian Ocean and the Western Pacific to West Antarctica |
title_full_unstemmed |
Seasonality and Dynamics of Atmospheric Teleconnection from the Tropical Indian Ocean and the Western Pacific to West Antarctica |
title_sort |
seasonality and dynamics of atmospheric teleconnection from the tropical indian ocean and the western pacific to west antarctica |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/atmos12070849 https://doaj.org/article/8fa3dd182c644c459e58b6740e86cf65 |
geographic |
Antarctic Austral West Antarctica Pacific Indian |
geographic_facet |
Antarctic Austral West Antarctica Pacific Indian |
genre |
Antarc* Antarctic Antarctica Ice Shelves West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Ice Shelves West Antarctica |
op_source |
Atmosphere, Vol 12, Iss 849, p 849 (2021) |
op_relation |
https://www.mdpi.com/2073-4433/12/7/849 https://doaj.org/toc/2073-4433 doi:10.3390/atmos12070849 2073-4433 https://doaj.org/article/8fa3dd182c644c459e58b6740e86cf65 |
op_doi |
https://doi.org/10.3390/atmos12070849 |
container_title |
Atmosphere |
container_volume |
12 |
container_issue |
7 |
container_start_page |
849 |
_version_ |
1766267078457688064 |