Atmospheric patterns over the Antarctic Peninsula
Dataset available in: https://repositorio.aemet.es/handle/20.500.11765/7914 Using clustering analysis for the SLP field of the ERA Interim reanalysis between 1979 and 2016, five synoptic pressure patterns have been obtained for Drake area and Antarctic Peninsula (AP) region (45°S 75°S 20°W 120°W) an...
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American Meteorological Society
2018
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Online Access: | https://hdl.handle.net/20.500.11765/8885 |
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ftaemet:oai:repositorio.aemet.es:20.500.11765/8885 2024-06-23T07:45:47+00:00 Atmospheric patterns over the Antarctic Peninsula González Herrero, Sergi Vasallo, Francisco Recio-Blitz, Cayetana Guijarro Pastor, José Antonio Riesco Martín, Jesús 2018 https://hdl.handle.net/20.500.11765/8885 eng eng American Meteorological Society https://dx.doi.org/10.1175/JCLI-D-17-0598.1 Journal of climate. 2018, 31(9), p. 3597-3608 0894-8755 1520-0442 http://hdl.handle.net/20.500.11765/8885 info:eu-repo/semantics/openAccess Antarctic Peninsula South Shetland Islands Atmospheric patterns Climatology Antarctica info:eu-repo/semantics/preprint 2018 ftaemet https://doi.org/20.500.11765/888510.1175/JCLI-D-17-0598.1 2024-06-03T14:17:56Z Dataset available in: https://repositorio.aemet.es/handle/20.500.11765/7914 Using clustering analysis for the SLP field of the ERA Interim reanalysis between 1979 and 2016, five synoptic pressure patterns have been obtained for Drake area and Antarctic Peninsula (AP) region (45°S 75°S 20°W 120°W) and the resulting daily series has been made available to the scientific community. The five patterns have been named according their most important features as Low over the Weddell Sea (LWS), Low over the Amundsen and Bellingshausen Seas (LAB), Low over the Drake Passage (LDP), Zonal over the Drake Passage (ZDP) and Ridge over the Antarctic Peninsula (RAP). Each atmospheric pattern has been described after analyzing their development and evolution. A frequency analysis shows that the 5 atmospheric patterns present a similar annual frequency but a large seasonal variability. Their transitions from one to other pattern tends to follow a cycle in which synoptic atmospheric waves displaces eastwards a quarter-wavelength. Four of the five atmospheric patterns (except RAP) are very influenced by SAM, only LAB and LWS are influenced to some degree by ENSO. Occurrence of LAB pattern presents a positive trend showing agreement with other studies that indicates an enhancement of the Amundsen-Bellingshausen Sea Low. Finally, atmospheric circulation patterns have been related with the airmass advection and precipitation in Livingston Island showing the potential application to study the changes in the surface mass balance on the AP cryosphere. This work is supported by Ministry of Economy and Competitiveness (MINECO) trough AEMET Antarctic program and by the Spanish Investigation Agency (AEI) and the European Regional Development Fund (FEDER), grant CTM2016-79741-R for MICROAIRPOLAR Project. Report Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea Drake Passage Livingston Island South Shetland Islands Weddell Sea ARCIMÍS (Archivo Climatológico y Meteorológico Institucional - AEMET, Agencia Estatal de Meteorología) Antarctic The Antarctic Antarctic Peninsula Weddell Sea Drake Passage South Shetland Islands Bellingshausen Sea Weddell Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Journal of Climate 31 9 3597 3608 |
institution |
Open Polar |
collection |
ARCIMÍS (Archivo Climatológico y Meteorológico Institucional - AEMET, Agencia Estatal de Meteorología) |
op_collection_id |
ftaemet |
language |
English |
topic |
Antarctic Peninsula South Shetland Islands Atmospheric patterns Climatology Antarctica |
spellingShingle |
Antarctic Peninsula South Shetland Islands Atmospheric patterns Climatology Antarctica González Herrero, Sergi Vasallo, Francisco Recio-Blitz, Cayetana Guijarro Pastor, José Antonio Riesco Martín, Jesús Atmospheric patterns over the Antarctic Peninsula |
topic_facet |
Antarctic Peninsula South Shetland Islands Atmospheric patterns Climatology Antarctica |
description |
Dataset available in: https://repositorio.aemet.es/handle/20.500.11765/7914 Using clustering analysis for the SLP field of the ERA Interim reanalysis between 1979 and 2016, five synoptic pressure patterns have been obtained for Drake area and Antarctic Peninsula (AP) region (45°S 75°S 20°W 120°W) and the resulting daily series has been made available to the scientific community. The five patterns have been named according their most important features as Low over the Weddell Sea (LWS), Low over the Amundsen and Bellingshausen Seas (LAB), Low over the Drake Passage (LDP), Zonal over the Drake Passage (ZDP) and Ridge over the Antarctic Peninsula (RAP). Each atmospheric pattern has been described after analyzing their development and evolution. A frequency analysis shows that the 5 atmospheric patterns present a similar annual frequency but a large seasonal variability. Their transitions from one to other pattern tends to follow a cycle in which synoptic atmospheric waves displaces eastwards a quarter-wavelength. Four of the five atmospheric patterns (except RAP) are very influenced by SAM, only LAB and LWS are influenced to some degree by ENSO. Occurrence of LAB pattern presents a positive trend showing agreement with other studies that indicates an enhancement of the Amundsen-Bellingshausen Sea Low. Finally, atmospheric circulation patterns have been related with the airmass advection and precipitation in Livingston Island showing the potential application to study the changes in the surface mass balance on the AP cryosphere. This work is supported by Ministry of Economy and Competitiveness (MINECO) trough AEMET Antarctic program and by the Spanish Investigation Agency (AEI) and the European Regional Development Fund (FEDER), grant CTM2016-79741-R for MICROAIRPOLAR Project. |
format |
Report |
author |
González Herrero, Sergi Vasallo, Francisco Recio-Blitz, Cayetana Guijarro Pastor, José Antonio Riesco Martín, Jesús |
author_facet |
González Herrero, Sergi Vasallo, Francisco Recio-Blitz, Cayetana Guijarro Pastor, José Antonio Riesco Martín, Jesús |
author_sort |
González Herrero, Sergi |
title |
Atmospheric patterns over the Antarctic Peninsula |
title_short |
Atmospheric patterns over the Antarctic Peninsula |
title_full |
Atmospheric patterns over the Antarctic Peninsula |
title_fullStr |
Atmospheric patterns over the Antarctic Peninsula |
title_full_unstemmed |
Atmospheric patterns over the Antarctic Peninsula |
title_sort |
atmospheric patterns over the antarctic peninsula |
publisher |
American Meteorological Society |
publishDate |
2018 |
url |
https://hdl.handle.net/20.500.11765/8885 |
long_lat |
ENVELOPE(-60.500,-60.500,-62.600,-62.600) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Weddell Sea Drake Passage South Shetland Islands Bellingshausen Sea Weddell Livingston Island |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Weddell Sea Drake Passage South Shetland Islands Bellingshausen Sea Weddell Livingston Island |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea Drake Passage Livingston Island South Shetland Islands Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea Drake Passage Livingston Island South Shetland Islands Weddell Sea |
op_relation |
https://dx.doi.org/10.1175/JCLI-D-17-0598.1 Journal of climate. 2018, 31(9), p. 3597-3608 0894-8755 1520-0442 http://hdl.handle.net/20.500.11765/8885 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.11765/888510.1175/JCLI-D-17-0598.1 |
container_title |
Journal of Climate |
container_volume |
31 |
container_issue |
9 |
container_start_page |
3597 |
op_container_end_page |
3608 |
_version_ |
1802642330876903424 |