Interannual Climate Variability in the West Antarctic Peninsula under Austral Summer Conditions
This study aimed to describe the interannual climate variability in the West Antarctic Peninsula (WAP) under austral summer conditions. Time series of January sea-surface temperature (SST) at 1 km spatial resolution from satellite-based multi-sensor data from Moderate Resolution Imaging Spectrometer...
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ftmdpi:oai:mdpi.com:/2072-4292/13/6/1122/ 2023-08-20T04:01:07+02:00 Interannual Climate Variability in the West Antarctic Peninsula under Austral Summer Conditions Eduardo Santamaría-del-Ángel Mary-Luz Cañon-Páez Maria-Teresa Sebastiá-Frasquet Adriana González-Silvera Angelica-L. Gutierrez Jesús-A. Aguilar-Maldonado Jorge López-Calderón Víctor Camacho-Ibar Andrés Franco-Herrera Alejandra Castillo-Ramírez 2021-03-16 application/pdf https://doi.org/10.3390/rs13061122 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/rs13061122 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 13; Issue 6; Pages: 1122 climate variability West Antarctic Peninsula (WAP) SST multi-sensor LAC imagery five-year warm cycle Southern Annular Mode (SAM)/Antarctic Oscillation (AAO) Southern Oscillation Index (SOI) WAP marine ecoregions Group on Earth Observations (GEO) Text 2021 ftmdpi https://doi.org/10.3390/rs13061122 2023-08-01T01:17:34Z This study aimed to describe the interannual climate variability in the West Antarctic Peninsula (WAP) under austral summer conditions. Time series of January sea-surface temperature (SST) at 1 km spatial resolution from satellite-based multi-sensor data from Moderate Resolution Imaging Spectrometer (MODIS) Terra, MODIS Aqua, and Visible Infrared Imager Radiometer Suite (VIIRS) were compiled between 2001 and 2020 at localities near the Gerlache Strait and the Carlini, Palmer, and Rothera research stations. The results revealed a well-marked spatial-temporal variability in SST at the WAP, with a one-year warm episode followed by a five-year cold episode. Warm waters (SST > 0 °C) reach the coast during warm episodes but remain far from the shore during cold episodes. This behavior of warm waters may be related to the regional variability of the Antarctic Circumpolar Current, particularly when the South Polar Front (carrying warm waters) reaches the WAP coast. The WAP can be divided into two zones representing two distinct ecoregions: the northern zone (including the Carlini and Gerlache stations) corresponds to the South Shetland Islands ecoregion, and the southern zone (including the Palmer and Rothera stations) corresponds to the Antarctic Peninsula ecoregion. The Gerlache Strait is likely situated on the border between the two ecoregions but under a greater influence of the northern zone. Our data showed that the Southern Annular Mode (SAM) is the primary driver of SST variability, while the El Niño Southern Oscillation (ENSO) plays a secondary role. However, further studies are needed to better understand regional climate variability in the WAP and its relation with SAM and ENSO; such studies should use an index that adequately describes the ENSO in these latitudes and addresses the limitations of the databases used for this purpose. Multi-sensor data are useful in describing the complex climate variability resulting from the combination of local and regional processes that elicit different responses across ... Text Antarc* Antarctic Antarctic Peninsula South Shetland Islands MDPI Open Access Publishing Antarctic The Antarctic Antarctic Peninsula Austral South Shetland Islands Soi ENVELOPE(30.704,30.704,66.481,66.481) Rothera ENVELOPE(-68.130,-68.130,-67.568,-67.568) Gerlache ENVELOPE(99.033,99.033,-66.500,-66.500) Gerlache Strait ENVELOPE(-62.333,-62.333,-64.500,-64.500) Remote Sensing 13 6 1122 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
climate variability West Antarctic Peninsula (WAP) SST multi-sensor LAC imagery five-year warm cycle Southern Annular Mode (SAM)/Antarctic Oscillation (AAO) Southern Oscillation Index (SOI) WAP marine ecoregions Group on Earth Observations (GEO) |
spellingShingle |
climate variability West Antarctic Peninsula (WAP) SST multi-sensor LAC imagery five-year warm cycle Southern Annular Mode (SAM)/Antarctic Oscillation (AAO) Southern Oscillation Index (SOI) WAP marine ecoregions Group on Earth Observations (GEO) Eduardo Santamaría-del-Ángel Mary-Luz Cañon-Páez Maria-Teresa Sebastiá-Frasquet Adriana González-Silvera Angelica-L. Gutierrez Jesús-A. Aguilar-Maldonado Jorge López-Calderón Víctor Camacho-Ibar Andrés Franco-Herrera Alejandra Castillo-Ramírez Interannual Climate Variability in the West Antarctic Peninsula under Austral Summer Conditions |
topic_facet |
climate variability West Antarctic Peninsula (WAP) SST multi-sensor LAC imagery five-year warm cycle Southern Annular Mode (SAM)/Antarctic Oscillation (AAO) Southern Oscillation Index (SOI) WAP marine ecoregions Group on Earth Observations (GEO) |
description |
This study aimed to describe the interannual climate variability in the West Antarctic Peninsula (WAP) under austral summer conditions. Time series of January sea-surface temperature (SST) at 1 km spatial resolution from satellite-based multi-sensor data from Moderate Resolution Imaging Spectrometer (MODIS) Terra, MODIS Aqua, and Visible Infrared Imager Radiometer Suite (VIIRS) were compiled between 2001 and 2020 at localities near the Gerlache Strait and the Carlini, Palmer, and Rothera research stations. The results revealed a well-marked spatial-temporal variability in SST at the WAP, with a one-year warm episode followed by a five-year cold episode. Warm waters (SST > 0 °C) reach the coast during warm episodes but remain far from the shore during cold episodes. This behavior of warm waters may be related to the regional variability of the Antarctic Circumpolar Current, particularly when the South Polar Front (carrying warm waters) reaches the WAP coast. The WAP can be divided into two zones representing two distinct ecoregions: the northern zone (including the Carlini and Gerlache stations) corresponds to the South Shetland Islands ecoregion, and the southern zone (including the Palmer and Rothera stations) corresponds to the Antarctic Peninsula ecoregion. The Gerlache Strait is likely situated on the border between the two ecoregions but under a greater influence of the northern zone. Our data showed that the Southern Annular Mode (SAM) is the primary driver of SST variability, while the El Niño Southern Oscillation (ENSO) plays a secondary role. However, further studies are needed to better understand regional climate variability in the WAP and its relation with SAM and ENSO; such studies should use an index that adequately describes the ENSO in these latitudes and addresses the limitations of the databases used for this purpose. Multi-sensor data are useful in describing the complex climate variability resulting from the combination of local and regional processes that elicit different responses across ... |
format |
Text |
author |
Eduardo Santamaría-del-Ángel Mary-Luz Cañon-Páez Maria-Teresa Sebastiá-Frasquet Adriana González-Silvera Angelica-L. Gutierrez Jesús-A. Aguilar-Maldonado Jorge López-Calderón Víctor Camacho-Ibar Andrés Franco-Herrera Alejandra Castillo-Ramírez |
author_facet |
Eduardo Santamaría-del-Ángel Mary-Luz Cañon-Páez Maria-Teresa Sebastiá-Frasquet Adriana González-Silvera Angelica-L. Gutierrez Jesús-A. Aguilar-Maldonado Jorge López-Calderón Víctor Camacho-Ibar Andrés Franco-Herrera Alejandra Castillo-Ramírez |
author_sort |
Eduardo Santamaría-del-Ángel |
title |
Interannual Climate Variability in the West Antarctic Peninsula under Austral Summer Conditions |
title_short |
Interannual Climate Variability in the West Antarctic Peninsula under Austral Summer Conditions |
title_full |
Interannual Climate Variability in the West Antarctic Peninsula under Austral Summer Conditions |
title_fullStr |
Interannual Climate Variability in the West Antarctic Peninsula under Austral Summer Conditions |
title_full_unstemmed |
Interannual Climate Variability in the West Antarctic Peninsula under Austral Summer Conditions |
title_sort |
interannual climate variability in the west antarctic peninsula under austral summer conditions |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/rs13061122 |
long_lat |
ENVELOPE(30.704,30.704,66.481,66.481) ENVELOPE(-68.130,-68.130,-67.568,-67.568) ENVELOPE(99.033,99.033,-66.500,-66.500) ENVELOPE(-62.333,-62.333,-64.500,-64.500) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Austral South Shetland Islands Soi Rothera Gerlache Gerlache Strait |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Austral South Shetland Islands Soi Rothera Gerlache Gerlache Strait |
genre |
Antarc* Antarctic Antarctic Peninsula South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula South Shetland Islands |
op_source |
Remote Sensing; Volume 13; Issue 6; Pages: 1122 |
op_relation |
https://dx.doi.org/10.3390/rs13061122 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs13061122 |
container_title |
Remote Sensing |
container_volume |
13 |
container_issue |
6 |
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1122 |
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1774722814423597056 |