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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ftcsic:oai:digital.csic.es:10261/324709 2024-02-11T09:57:35+01:00 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, Roberto Ichii, Taro Okuda, Takehiro Somhlaba, S. Pompert, J Hobart (Australia) Atlantique antarctique Océan antarctique Antarctic Ocean Océano Antártico Antártico Atlántico Antarctic Atlantic 2000-2021 2021-06-28 http://hdl.handle.net/10508/12285 http://hdl.handle.net/10261/324709 en eng #PLACEHOLDER_PARENT_METADATA_VALUE# ATLANSUR Centro Oceanográfico de Canarias https://www.ccamlr.org/es/wg-sam-2021 WG-SAM de CCAMLR. (28/06/2021 - 02/07/2021. Hobart (Australia)). 2021. http://hdl.handle.net/10508/12285 http://hdl.handle.net/10261/324709 23216 open WG-SAM-2021/21 CCAMLR Pesquerías Centro Oceanográfico de Canarias Antarctica 48.6 research fishing ice condition southern ocean ice edge physical oceanography working paper 2021 ftcsic 2024-01-16T11:47:39Z 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. Estudio de los recursos marinos vivos del Atlántico Sur, Océano Austral, Índico y Pacífico. ATLANSUR Report Antarc* Antarctic Antarctic Ocean Antarctica Antarctique* Sea ice Southern Ocean Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Ocean Austral Southern Ocean |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
CCAMLR Pesquerías Centro Oceanográfico de Canarias Antarctica 48.6 research fishing ice condition southern ocean ice edge physical oceanography |
spellingShingle |
CCAMLR Pesquerías Centro Oceanográfico de Canarias Antarctica 48.6 research fishing ice condition southern ocean ice edge physical oceanography Namba, T. Sarralde-Vizuete, Roberto Ichii, Taro Okuda, 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 Pesquerías Centro Oceanográfico de Canarias 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. Estudio de los recursos marinos vivos del Atlántico Sur, Océano Austral, Índico y Pacífico. ATLANSUR |
format |
Report |
author |
Namba, T. Sarralde-Vizuete, Roberto Ichii, Taro Okuda, Takehiro Somhlaba, S. Pompert, J |
author_facet |
Namba, T. Sarralde-Vizuete, Roberto Ichii, Taro Okuda, 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 |
publishDate |
2021 |
url |
http://hdl.handle.net/10508/12285 http://hdl.handle.net/10261/324709 |
op_coverage |
Hobart (Australia) Atlantique antarctique Océan antarctique Antarctic Ocean Océano Antártico Antártico Atlántico Antarctic Atlantic 2000-2021 |
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 |
#PLACEHOLDER_PARENT_METADATA_VALUE# ATLANSUR Centro Oceanográfico de Canarias https://www.ccamlr.org/es/wg-sam-2021 WG-SAM de CCAMLR. (28/06/2021 - 02/07/2021. Hobart (Australia)). 2021. http://hdl.handle.net/10508/12285 http://hdl.handle.net/10261/324709 23216 |
op_rights |
open |
_version_ |
1790593132955435008 |