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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Online Access: | https://doi.org/10.5194/essd-10-1227-2018 https://www.earth-syst-sci-data.net/10/1227/2018/essd-10-1227-2018.pdf https://doaj.org/article/e2fbb9a5ccaa436897d96ccc43dc3f83 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:e2fbb9a5ccaa436897d96ccc43dc3f83 2023-05-15T13:53:01+02:00 Sea surface salinity and temperature in the southern Atlantic Ocean from South African icebreakers, 2010–2017 G. Aulicino Y. Cotroneo I. Ansorge M. van den Berg C. Cesarano M. Belmonte Rivas E. Olmedo Casal 2018-07-01 https://doi.org/10.5194/essd-10-1227-2018 https://www.earth-syst-sci-data.net/10/1227/2018/essd-10-1227-2018.pdf https://doaj.org/article/e2fbb9a5ccaa436897d96ccc43dc3f83 en eng Copernicus Publications doi:10.5194/essd-10-1227-2018 1866-3508 1866-3516 https://www.earth-syst-sci-data.net/10/1227/2018/essd-10-1227-2018.pdf https://doaj.org/article/e2fbb9a5ccaa436897d96ccc43dc3f83 undefined Earth System Science Data, Vol 10, Pp 1227-1236 (2018) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.5194/essd-10-1227-2018 2023-01-22T19:11:31Z 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 ... Article in Journal/Newspaper Antarc* Antarctic Sea ice South African National Antarctic Programme Southern Ocean Unknown Antarctic Southern Ocean The Antarctic Earth System Science Data 10 3 1227 1236 |
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Open Polar |
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language |
English |
topic |
geo envir |
spellingShingle |
geo envir G. Aulicino Y. Cotroneo I. Ansorge M. van den Berg C. Cesarano M. Belmonte Rivas E. Olmedo Casal Sea surface salinity and temperature in the southern Atlantic Ocean from South African icebreakers, 2010–2017 |
topic_facet |
geo envir |
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 ... |
format |
Article in Journal/Newspaper |
author |
G. Aulicino Y. Cotroneo I. Ansorge M. van den Berg C. Cesarano M. Belmonte Rivas E. Olmedo Casal |
author_facet |
G. Aulicino Y. Cotroneo I. Ansorge M. van den Berg C. Cesarano M. Belmonte Rivas E. Olmedo Casal |
author_sort |
G. Aulicino |
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://www.earth-syst-sci-data.net/10/1227/2018/essd-10-1227-2018.pdf https://doaj.org/article/e2fbb9a5ccaa436897d96ccc43dc3f83 |
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_source |
Earth System Science Data, Vol 10, Pp 1227-1236 (2018) |
op_relation |
doi:10.5194/essd-10-1227-2018 1866-3508 1866-3516 https://www.earth-syst-sci-data.net/10/1227/2018/essd-10-1227-2018.pdf https://doaj.org/article/e2fbb9a5ccaa436897d96ccc43dc3f83 |
op_rights |
undefined |
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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1766257976147968000 |