SPURS-2 Towed surface salinity profile (SSP) data for the E. Tropical Pacific R/V Revelle cruises
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| DOI | 10.5067/SPUR2-SSP00 |
| Short Name | SPURS2_SSP |
| Description | The SPURS (Salinity Processes in the Upper Ocean Regional Study) project is a NASA-funded oceanographic process study and associated field program that aim to elucidate key mechanisms responsible for near-surface salinity variations in the oceans. The project is comprised of two field campaigns and a series of cruises in regions of the Atlantic and Pacific Oceans exhibiting salinity extremes. SPURS employs a suite of state-of-the-art in-situ sampling technologies that, combined with remotely sensed salinity fields from the Aquarius/SAC-D, SMAP and SMOS satellites, provide a detailed characterization of salinity structure over a continuum of spatio-temporal scales. The SPURS-2 campaign involved two month-long cruises by the R/V Revelle in August 2016 and October 2017 combined with complementary sampling on a more continuous basis over this period by the schooner Lady Amber. Focused around a central mooring located near 10N,125W, the objective of SPURS-2 was to study the dynamics of the rainfall-dominated surface ocean at the western edge of the eastern Pacific fresh pool subject to high seasonal variability and strong zonal flows associated with the North Equatorial Current and Countercurrent. The towed Surface Salinity Profiler (SSP) platform is a converted paddleboard with a keel and surfboard outrigger that is tethered to the ship and skims the sea surface beyond the ships wake. Below the paddleboard are salinity and temperature sensors at depths of 10, 30, 50 and 100cm, and microstructure sensors that measure turbulence. The SSP was deployed 19 times throughout the first SPURS-2 cruise, totaling over 200 hours of measurements, and a further 15 times during the 2017 cruise. SSP deployment is most informative when there is a rain event leading to near-surface ocean stratification. The SSP then measures how the ocean changes over the periods before, during, and after rain, and how rainwater mixes into the ocean during recovery. All SSP data files are in netCDF format with standards compliant metadata. |
| Version | 1.0 |
| Dataset Type | COMPLETE |
| Measurement | OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE OCEANS > OCEAN CIRCULATION > TURBULENCE OCEANS > SALINITY/DENSITY > CONDUCTIVITY OCEANS > SALINITY/DENSITY > SALINITY |
| Processing Level | 2 |
| Coverage | North Bounding Coordinate: 16.502 degrees South Bounding Coordinate: 6.546 degrees West Bounding Coordinate: -140.969 degrees East Bounding Coordinate: -123.203 degrees Time Span: 2016-Aug-27 to 2017-Nov-11 Granule Time Span: 2017-Oct-20 to 2017-Nov-11 |
| Resolution | Spatial Resolution: 0 km (Along) x 0 km (Across) |
| Projection | Projection Type: WGS84 Ellipsoid: WGS 84 |
| Swath Width | 0.001 km |
| Platform/Sensor | Seaglider / Platform Name: SPURS-I University of Washington Seaglider (Seaglider) Orbit Period: 0.0 minutes Inclination Angle: 0.0 degrees CTD SENSOR Name: Conductivity, Temperature, Depth (CTD) Swath Width: 0.001 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. |
| Project | NASA Salinity Processes in the Upper Ocean Regional Study (SPURS) |
| Data Provider | Publisher: SPURS Data Management PI, Fred Bingham Creator: Drushka, K., E. Thompson and W. Asher Release Place: APL, University of Washington, 1013 NE 40th St, Seattle, WA 98105, USA Release Date: 2019-Oct-24 Resource: http://podaac.jpl.nasa.gov/SPURS |
| Keyword(s) | SSP, surface salinity profiler, CTD, trajectory, microstructure, Salinity, Conductivity, Temperature, Depth, Pressure, Upper Ocean, SPURS2, Eastern Tropical Pacific, ITCZ region, Cruises, Revelle, insitu, SPURS, oceanographic campaign |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
| Direct Access | |
| PO.DAAC DRIVE | https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/ssp PO.DAAC Drive |
| OPENDAP DATA | https://podaac-opendap.jpl.nasa.gov/opendap/allData/insitu/L2/spurs2/ssp/ The OPeNDAP base directory location for the collection. |
| Format (Compression) | NETCDF |
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| Citation | Drushka, K., E. Thompson and W. Asher. 2019. SPURS-2 Field Campaign Surface Salinity Profiler Data Products. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SPUR2-SSP00
For more information see Data Citations and Acknowledgments.
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| Journal Reference | Drushka, K., W.E. Asher, A.T. Jessup, E.J. Thompson, S. Iyer, and D. Clark. 2019. Capturing fresh layers with the surface salinity profiler. Oceanography 32(2):76-85. https://doi.org/10.5670/oceanog.2019.215 . |
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