2021 updated analysis of the sea ice concentration (SIC) in research blocks 4 (RB4), and 5 (RB5) of Subarea 48.6 with sea surface temperature (SST) and winds
Ice condition in the subarea 48.6, Southern Ocean In RB5, the SICs in Feb. 2021 were the highest and the SSTs were the lowest for the years 2016-2021. In March 2021, the highest SICs decreased to nearly the longterm average while the SST increased accordingly. In the same year, the SICs and SSTs had...
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Centro Oceanográfico de Canarias
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ftieo:oai:repositorio.ieo.es:10508/12285 2023-05-15T13:41:25+02:00 2021 updated analysis of the sea ice concentration (SIC) in research blocks 4 (RB4), and 5 (RB5) of Subarea 48.6 with sea surface temperature (SST) and winds Namba, T. Sarralde-Vizuete, R. (Roberto) Ichii, T. (Taro) Okuda, T. (Takehiro) Somhlaba, S. Pompert, J 2000-2021 Atlantique antarctique Océan antarctique Antarctic Ocean Océano Antártico Antártico Atlántico Antarctic Atlantic 2021-06-28 http://hdl.handle.net/10508/12285 eng eng Centro Oceanográfico de Canarias https://www.ccamlr.org/es/wg-sam-2021 ATLANSUR http://hdl.handle.net/10508/12285 WG-SAM de CCAMLR. (28/06/2021 - 02/07/2021. Hobart (Australia)). 2021. openAccess WG-SAM-2021/21 CCAMLR Antarctica 48.6 research fishing ice condition southern ocean ice edge physical oceanography workingPaper 2021 ftieo 2022-07-26T23:49:22Z Ice condition in the subarea 48.6, Southern Ocean In RB5, the SICs in Feb. 2021 were the highest and the SSTs were the lowest for the years 2016-2021. In March 2021, the highest SICs decreased to nearly the longterm average while the SST increased accordingly. In the same year, the SICs and SSTs had two peaks in Feb. and March respectively. In RB4, the SICs during Jan.- Feb (Austral summer) in 2021 were also the highest since 2016. The sharp spikes of SST (rapid increasing SST) had become smaller year by year from 2017 to 2021, which indicates that the SSTs had a cooling phase in 5-6 year periodical cycles corresponding to an increasing trend in SICs. Spatial dynamics of SICs with SSTs contour of -1.8°C and -0.8°C were analyzed. It was found that the ice edges are at approximately -1.8°C and partially broken ices exist between -1.8°C and -0.8°C when comparing imagery by GIBS and SICs distribution by AMSRs with SSTs by NOAA. Daily wind stick plots indicate that the eastward winds could encourage the off-shore Ekman transport at the end of Feb. and the beginning of Mar. which resulted in late (slow) ice retrieval in 2021. Report Antarc* Antarctic Antarctic Ocean Antarctica Antarctique* Sea ice Southern Ocean Instituto Español de Oceanografía: e-IEO Antarctic Antarctic Ocean Austral Southern Ocean |
institution |
Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
topic |
CCAMLR Antarctica 48.6 research fishing ice condition southern ocean ice edge physical oceanography |
spellingShingle |
CCAMLR Antarctica 48.6 research fishing ice condition southern ocean ice edge physical oceanography Namba, T. Sarralde-Vizuete, R. (Roberto) Ichii, T. (Taro) Okuda, T. (Takehiro) Somhlaba, S. Pompert, J 2021 updated analysis of the sea ice concentration (SIC) in research blocks 4 (RB4), and 5 (RB5) of Subarea 48.6 with sea surface temperature (SST) and winds |
topic_facet |
CCAMLR Antarctica 48.6 research fishing ice condition southern ocean ice edge physical oceanography |
description |
Ice condition in the subarea 48.6, Southern Ocean In RB5, the SICs in Feb. 2021 were the highest and the SSTs were the lowest for the years 2016-2021. In March 2021, the highest SICs decreased to nearly the longterm average while the SST increased accordingly. In the same year, the SICs and SSTs had two peaks in Feb. and March respectively. In RB4, the SICs during Jan.- Feb (Austral summer) in 2021 were also the highest since 2016. The sharp spikes of SST (rapid increasing SST) had become smaller year by year from 2017 to 2021, which indicates that the SSTs had a cooling phase in 5-6 year periodical cycles corresponding to an increasing trend in SICs. Spatial dynamics of SICs with SSTs contour of -1.8°C and -0.8°C were analyzed. It was found that the ice edges are at approximately -1.8°C and partially broken ices exist between -1.8°C and -0.8°C when comparing imagery by GIBS and SICs distribution by AMSRs with SSTs by NOAA. Daily wind stick plots indicate that the eastward winds could encourage the off-shore Ekman transport at the end of Feb. and the beginning of Mar. which resulted in late (slow) ice retrieval in 2021. |
format |
Report |
author |
Namba, T. Sarralde-Vizuete, R. (Roberto) Ichii, T. (Taro) Okuda, T. (Takehiro) Somhlaba, S. Pompert, J |
author_facet |
Namba, T. Sarralde-Vizuete, R. (Roberto) Ichii, T. (Taro) Okuda, T. (Takehiro) Somhlaba, S. Pompert, J |
author_sort |
Namba, T. |
title |
2021 updated analysis of the sea ice concentration (SIC) in research blocks 4 (RB4), and 5 (RB5) of Subarea 48.6 with sea surface temperature (SST) and winds |
title_short |
2021 updated analysis of the sea ice concentration (SIC) in research blocks 4 (RB4), and 5 (RB5) of Subarea 48.6 with sea surface temperature (SST) and winds |
title_full |
2021 updated analysis of the sea ice concentration (SIC) in research blocks 4 (RB4), and 5 (RB5) of Subarea 48.6 with sea surface temperature (SST) and winds |
title_fullStr |
2021 updated analysis of the sea ice concentration (SIC) in research blocks 4 (RB4), and 5 (RB5) of Subarea 48.6 with sea surface temperature (SST) and winds |
title_full_unstemmed |
2021 updated analysis of the sea ice concentration (SIC) in research blocks 4 (RB4), and 5 (RB5) of Subarea 48.6 with sea surface temperature (SST) and winds |
title_sort |
2021 updated analysis of the sea ice concentration (sic) in research blocks 4 (rb4), and 5 (rb5) of subarea 48.6 with sea surface temperature (sst) and winds |
publisher |
Centro Oceanográfico de Canarias |
publishDate |
2021 |
url |
http://hdl.handle.net/10508/12285 |
op_coverage |
2000-2021 Atlantique antarctique Océan antarctique Antarctic Ocean Océano Antártico Antártico Atlántico Antarctic Atlantic |
geographic |
Antarctic Antarctic Ocean Austral Southern Ocean |
geographic_facet |
Antarctic Antarctic Ocean Austral Southern Ocean |
genre |
Antarc* Antarctic Antarctic Ocean Antarctica Antarctique* Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean Antarctica Antarctique* Sea ice Southern Ocean |
op_source |
WG-SAM-2021/21 |
op_relation |
https://www.ccamlr.org/es/wg-sam-2021 ATLANSUR http://hdl.handle.net/10508/12285 WG-SAM de CCAMLR. (28/06/2021 - 02/07/2021. Hobart (Australia)). 2021. |
op_rights |
openAccess |
_version_ |
1766150578347442176 |