Sea Surface Salinity Observations with Lagrangian Drifters in the Tropical North Atlantic During SPURS: Circulation, Fluxes, and Comparisons with Remotely Sensed Salinity from Aquarius
Special issue on SPURS: Salinity Processes in the Upper-ocean Regional Study.-- 10 pages, 5 figures, 2 tables The Global Drifter Program deployed a total of 144 Lagrangian drifters drogued at 15 m depth, including 88 equipped with salinity sensors, in support of the first Salinity Processes in the U...
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Online Access: | http://hdl.handle.net/10261/114211 https://doi.org/10.5670/oceanog.2015.08 |
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ftcsic:oai:digital.csic.es:10261/114211 2024-02-11T10:06:23+01:00 Sea Surface Salinity Observations with Lagrangian Drifters in the Tropical North Atlantic During SPURS: Circulation, Fluxes, and Comparisons with Remotely Sensed Salinity from Aquarius Centurioni, Luca R. Hörmann, Verena Chao, Y. Reverdin, Gilles Font, Jordi Lee, Dong-Kyu 2015-03 http://hdl.handle.net/10261/114211 https://doi.org/10.5670/oceanog.2015.08 unknown Oceanography Society http://doi.org/10.5670/oceanog.2015.08 issn: 1042-8275 Oceanography 28(1): 96-105 (2015) http://hdl.handle.net/10261/114211 doi:10.5670/oceanog.2015.08 open artículo http://purl.org/coar/resource_type/c_6501 2015 ftcsic https://doi.org/10.5670/oceanog.2015.08 2024-01-16T10:06:53Z Special issue on SPURS: Salinity Processes in the Upper-ocean Regional Study.-- 10 pages, 5 figures, 2 tables The Global Drifter Program deployed a total of 144 Lagrangian drifters drogued at 15 m depth, including 88 equipped with salinity sensors, in support of the first Salinity Processes in the Upper-ocean Regional Study (SPURS-1) in the subtropical North Atlantic Ocean with the goal of measuring salt fluxes associated with surface currents. The quality-controlled data set consists of 996,583 salinity observations collected between August 2012 and April 2014. A comparison of the drifter salinities with Aquarius satellite sea surface salinity (SSS) data shows that the lifespan of the salinity sensor fitted to the drifters is of the order of one year. The salinity and velocity data from the drifters were used to validate salt transport divergence computed with satellite products, with satellite salinity taken from the standard Aquarius v3.0 data set. The results indicate good agreement between the two independent methods, and also demonstrate that the effect of the eddy field combined with SSS variability at the surface dominates the signal. SSS variability within spatial bins as compared to Aquarius-beam footprints measured by drifters can be in excess of 0.1 psu. This result suggests that careful evaluation of the representation error is required when single-point in situ measurements, such as those collected by Argo floats, are used to validate spatially averaged Aquarius salinity data. © 2015 by The Oceanography Society. All rights reserved Lance Braasch is gratefully acknowledged for implementing and managing real-time distribution of SVP and SVPS data to the SPURS-1 investigators and for data analysis support. SVP and SVPS drifters described in this study were provided by the GDP of NOAA at SIO, grant #NA10OAR4320156. LC, VH, and DL were supported by NASA grant #NNX12AI67G, and NOAA grant #NA10OAR4320156. The altimeter products F. Wentz, S. Yueh, C. Ruf, J. Lilly, J. Gunn, were produced by ... Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Gunn ENVELOPE(160.700,160.700,-76.867,-76.867) Oceanography 28 1 96 105 |
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Digital.CSIC (Spanish National Research Council) |
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unknown |
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Special issue on SPURS: Salinity Processes in the Upper-ocean Regional Study.-- 10 pages, 5 figures, 2 tables The Global Drifter Program deployed a total of 144 Lagrangian drifters drogued at 15 m depth, including 88 equipped with salinity sensors, in support of the first Salinity Processes in the Upper-ocean Regional Study (SPURS-1) in the subtropical North Atlantic Ocean with the goal of measuring salt fluxes associated with surface currents. The quality-controlled data set consists of 996,583 salinity observations collected between August 2012 and April 2014. A comparison of the drifter salinities with Aquarius satellite sea surface salinity (SSS) data shows that the lifespan of the salinity sensor fitted to the drifters is of the order of one year. The salinity and velocity data from the drifters were used to validate salt transport divergence computed with satellite products, with satellite salinity taken from the standard Aquarius v3.0 data set. The results indicate good agreement between the two independent methods, and also demonstrate that the effect of the eddy field combined with SSS variability at the surface dominates the signal. SSS variability within spatial bins as compared to Aquarius-beam footprints measured by drifters can be in excess of 0.1 psu. This result suggests that careful evaluation of the representation error is required when single-point in situ measurements, such as those collected by Argo floats, are used to validate spatially averaged Aquarius salinity data. © 2015 by The Oceanography Society. All rights reserved Lance Braasch is gratefully acknowledged for implementing and managing real-time distribution of SVP and SVPS data to the SPURS-1 investigators and for data analysis support. SVP and SVPS drifters described in this study were provided by the GDP of NOAA at SIO, grant #NA10OAR4320156. LC, VH, and DL were supported by NASA grant #NNX12AI67G, and NOAA grant #NA10OAR4320156. The altimeter products F. Wentz, S. Yueh, C. Ruf, J. Lilly, J. Gunn, were produced by ... |
format |
Article in Journal/Newspaper |
author |
Centurioni, Luca R. Hörmann, Verena Chao, Y. Reverdin, Gilles Font, Jordi Lee, Dong-Kyu |
spellingShingle |
Centurioni, Luca R. Hörmann, Verena Chao, Y. Reverdin, Gilles Font, Jordi Lee, Dong-Kyu Sea Surface Salinity Observations with Lagrangian Drifters in the Tropical North Atlantic During SPURS: Circulation, Fluxes, and Comparisons with Remotely Sensed Salinity from Aquarius |
author_facet |
Centurioni, Luca R. Hörmann, Verena Chao, Y. Reverdin, Gilles Font, Jordi Lee, Dong-Kyu |
author_sort |
Centurioni, Luca R. |
title |
Sea Surface Salinity Observations with Lagrangian Drifters in the Tropical North Atlantic During SPURS: Circulation, Fluxes, and Comparisons with Remotely Sensed Salinity from Aquarius |
title_short |
Sea Surface Salinity Observations with Lagrangian Drifters in the Tropical North Atlantic During SPURS: Circulation, Fluxes, and Comparisons with Remotely Sensed Salinity from Aquarius |
title_full |
Sea Surface Salinity Observations with Lagrangian Drifters in the Tropical North Atlantic During SPURS: Circulation, Fluxes, and Comparisons with Remotely Sensed Salinity from Aquarius |
title_fullStr |
Sea Surface Salinity Observations with Lagrangian Drifters in the Tropical North Atlantic During SPURS: Circulation, Fluxes, and Comparisons with Remotely Sensed Salinity from Aquarius |
title_full_unstemmed |
Sea Surface Salinity Observations with Lagrangian Drifters in the Tropical North Atlantic During SPURS: Circulation, Fluxes, and Comparisons with Remotely Sensed Salinity from Aquarius |
title_sort |
sea surface salinity observations with lagrangian drifters in the tropical north atlantic during spurs: circulation, fluxes, and comparisons with remotely sensed salinity from aquarius |
publisher |
Oceanography Society |
publishDate |
2015 |
url |
http://hdl.handle.net/10261/114211 https://doi.org/10.5670/oceanog.2015.08 |
long_lat |
ENVELOPE(160.700,160.700,-76.867,-76.867) |
geographic |
Gunn |
geographic_facet |
Gunn |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://doi.org/10.5670/oceanog.2015.08 issn: 1042-8275 Oceanography 28(1): 96-105 (2015) http://hdl.handle.net/10261/114211 doi:10.5670/oceanog.2015.08 |
op_rights |
open |
op_doi |
https://doi.org/10.5670/oceanog.2015.08 |
container_title |
Oceanography |
container_volume |
28 |
container_issue |
1 |
container_start_page |
96 |
op_container_end_page |
105 |
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1790604076441927680 |