Sea surface salinity and temperature in the southern Atlantic Ocean from South African icebreakers, 2010–2017
We present here sea surface salinity (SSS) and temperature (SST) data collected on board the S.A. Agulhas-I and S.A. Agulhas-II research vessels, in the framework of the South African National Antarctic Programme (SANAP). Onboard Sea-Bird thermosalinographs were regularly calibrated and continuously...
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Copernicus Publications
2018
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00005388 2023-05-15T13:34:49+02:00 Sea surface salinity and temperature in the southern Atlantic Ocean from South African icebreakers, 2010–2017 Aulicino, Giuseppe Cotroneo, Yuri Ansorge, Isabelle van den Berg, Marcel Cesarano, Cinzia Belmonte Rivas, Maria Olmedo Casal, Estrella 2018-07 electronic https://doi.org/10.5194/essd-10-1227-2018 https://noa.gwlb.de/receive/cop_mods_00005388 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005345/essd-10-1227-2018.pdf https://essd.copernicus.org/articles/10/1227/2018/essd-10-1227-2018.pdf eng eng Copernicus Publications Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469 -- 1866-3516 https://doi.org/10.5194/essd-10-1227-2018 https://noa.gwlb.de/receive/cop_mods_00005388 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005345/essd-10-1227-2018.pdf https://essd.copernicus.org/articles/10/1227/2018/essd-10-1227-2018.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2018 ftnonlinearchiv https://doi.org/10.5194/essd-10-1227-2018 2022-02-08T22:59:33Z We present here sea surface salinity (SSS) and temperature (SST) data collected on board the S.A. Agulhas-I and S.A. Agulhas-II research vessels, in the framework of the South African National Antarctic Programme (SANAP). Onboard Sea-Bird thermosalinographs were regularly calibrated and continuously monitored in-between cruises, and no appreciable sensor drift emerged. Water samples were taken on a daily basis and later analyzed with a Portasal salinometer; some CTD measurements collected along the cruises were used to validate the data. No systematic differences appeared after a rigorous quality control on continuous data. Results show that salinity measurement error was a few hundredths of a unit on the practical salinity scale. Quality control included several steps, among which an automatic detection of unreliable values through selected threshold criteria and an attribution of quality flags based on multiple criteria, i.e., analysis of information included in the cruise reports, detection of insufficient flow and/or presence of air bubbles and ice crystals in the seawater pipe, visual inspection of individual campaigns, and ex post check of sea ice maps for confirming ice field locations. This data processing led us to discard about 36 % of acquired observations, while reliable data showed an excellent agreement with several independent SSS products. Nevertheless, a sea ice flag has been included for identifying valid data which could have been affected by scattered sea ice contamination. In our opinion, this dataset, available through an unrestricted repository at https://doi.org/10.7289/V56M3545, contributes to improving the knowledge of surface water features in one of the most important regions for global climate. The dataset will be highly valuable for studies focusing on climate variability in the Atlantic sector of the Southern Ocean, especially across the Antarctic Circumpolar Current and its fronts. Furthermore, we expect that the collected SSS data will represent a valuable tool for the calibration and validation of recent satellite observations provided by SMOS and Aquarius missions. Article in Journal/Newspaper Antarc* Antarctic Sea ice South African National Antarctic Programme Southern Ocean Niedersächsisches Online-Archiv NOA Antarctic Southern Ocean The Antarctic Earth System Science Data 10 3 1227 1236 |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Aulicino, Giuseppe Cotroneo, Yuri Ansorge, Isabelle van den Berg, Marcel Cesarano, Cinzia Belmonte Rivas, Maria Olmedo Casal, Estrella Sea surface salinity and temperature in the southern Atlantic Ocean from South African icebreakers, 2010–2017 |
topic_facet |
article Verlagsveröffentlichung |
description |
We present here sea surface salinity (SSS) and temperature (SST) data collected on board the S.A. Agulhas-I and S.A. Agulhas-II research vessels, in the framework of the South African National Antarctic Programme (SANAP). Onboard Sea-Bird thermosalinographs were regularly calibrated and continuously monitored in-between cruises, and no appreciable sensor drift emerged. Water samples were taken on a daily basis and later analyzed with a Portasal salinometer; some CTD measurements collected along the cruises were used to validate the data. No systematic differences appeared after a rigorous quality control on continuous data. Results show that salinity measurement error was a few hundredths of a unit on the practical salinity scale. Quality control included several steps, among which an automatic detection of unreliable values through selected threshold criteria and an attribution of quality flags based on multiple criteria, i.e., analysis of information included in the cruise reports, detection of insufficient flow and/or presence of air bubbles and ice crystals in the seawater pipe, visual inspection of individual campaigns, and ex post check of sea ice maps for confirming ice field locations. This data processing led us to discard about 36 % of acquired observations, while reliable data showed an excellent agreement with several independent SSS products. Nevertheless, a sea ice flag has been included for identifying valid data which could have been affected by scattered sea ice contamination. In our opinion, this dataset, available through an unrestricted repository at https://doi.org/10.7289/V56M3545, contributes to improving the knowledge of surface water features in one of the most important regions for global climate. The dataset will be highly valuable for studies focusing on climate variability in the Atlantic sector of the Southern Ocean, especially across the Antarctic Circumpolar Current and its fronts. Furthermore, we expect that the collected SSS data will represent a valuable tool for the calibration and validation of recent satellite observations provided by SMOS and Aquarius missions. |
format |
Article in Journal/Newspaper |
author |
Aulicino, Giuseppe Cotroneo, Yuri Ansorge, Isabelle van den Berg, Marcel Cesarano, Cinzia Belmonte Rivas, Maria Olmedo Casal, Estrella |
author_facet |
Aulicino, Giuseppe Cotroneo, Yuri Ansorge, Isabelle van den Berg, Marcel Cesarano, Cinzia Belmonte Rivas, Maria Olmedo Casal, Estrella |
author_sort |
Aulicino, Giuseppe |
title |
Sea surface salinity and temperature in the southern Atlantic Ocean from South African icebreakers, 2010–2017 |
title_short |
Sea surface salinity and temperature in the southern Atlantic Ocean from South African icebreakers, 2010–2017 |
title_full |
Sea surface salinity and temperature in the southern Atlantic Ocean from South African icebreakers, 2010–2017 |
title_fullStr |
Sea surface salinity and temperature in the southern Atlantic Ocean from South African icebreakers, 2010–2017 |
title_full_unstemmed |
Sea surface salinity and temperature in the southern Atlantic Ocean from South African icebreakers, 2010–2017 |
title_sort |
sea surface salinity and temperature in the southern atlantic ocean from south african icebreakers, 2010–2017 |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/essd-10-1227-2018 https://noa.gwlb.de/receive/cop_mods_00005388 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005345/essd-10-1227-2018.pdf https://essd.copernicus.org/articles/10/1227/2018/essd-10-1227-2018.pdf |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Sea ice South African National Antarctic Programme Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice South African National Antarctic Programme Southern Ocean |
op_relation |
Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469 -- 1866-3516 https://doi.org/10.5194/essd-10-1227-2018 https://noa.gwlb.de/receive/cop_mods_00005388 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005345/essd-10-1227-2018.pdf https://essd.copernicus.org/articles/10/1227/2018/essd-10-1227-2018.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/essd-10-1227-2018 |
container_title |
Earth System Science Data |
container_volume |
10 |
container_issue |
3 |
container_start_page |
1227 |
op_container_end_page |
1236 |
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1766058208992952320 |