Towed surface salinity profile (SSP) data for the SPURS-2 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 | OPEN |
| Measurement | OCEANS > OCEAN CIRCULATION > TURBULENCE OCEANS > SALINITY/DENSITY > CONDUCTIVITY OCEANS > SALINITY/DENSITY > SALINITY OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE |
| Processing Level | 2 |
| Coverage | Region: Eastern Tropical Pacific Northernmost Latitude: 16.502 degrees Southernmost Latitude: 6.546 degrees Westernmost Longitude: -140.969 degrees Easternmost Longitude: -123.203 degrees Time Span: 2016-Aug-27 to 2017-Nov-11 |
| Resolution | Spatial Resolution: 0 km (Along) x 0 km (Across) |
| Projection | Type: WGS84 Detail: Ellipsoid: |
| Latency | 0 hours |
| Swath Width | 0.001 km |
| Sample Frequency | - |
| Temporal Repeat (Nominal) | 1 Day |
| Temporal Repeat (Min) | - |
| Temporal Repeat (Max) | - |
| Platform/Sensor | Seaglider / Platform Name: SPURS-I University of Washington Seaglider (Seaglider) Orbit Period: 0 minutes Inclination Angle: 0 degrees Ascending Node: 1970-Jan-01 00:00:00 CTD SENSOR Name: Conductivity, Temperature, Depth (CTD) Swath Width: 0.001 km Description: Saildrone Teledyne CTD (2632) |
| Project | NASA Salinity Processes in the Upper Ocean Regional Study (SPURS) |
| Data Provider | Creator: Kyla Drushka 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, Revell, insitu, SPURS |
| Persistent ID | PODAAC-SPUR2-SSP00 |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
| PO.DAAC DRIVE | https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/ssp |
| OPENDAP | https://podaac-opendap.jpl.nasa.gov/opendap/allData/insitu/L2/spurs2/ssp/ |
| Format (Compression) | NETCDF (NONE) |
| Read Software | |
| R | https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/sw/R R Reader and calling routines |
| MATLAB | https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/sw/matlab MATLAB Reader and calling routines |
| Project Materials | |
| SPURS-2 Cruise Documentation Package | https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/docs/CruiseReports/ Cruise Reports |
| SPURS-2 Data Documentation Package | https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/docs/DataDocumentation/ Data Submission Report, Instrument Calibration Report, etc |
| Additional Sites | |
| PO.DAAC SPURS Mission page | http://podaac.jpl.nasa.gov/spurs Field Campaign and Instrument Overview |
| SPURS Project Website | http://spurs.jpl.nasa.gov/ Project Website for SPURS |
| Citation | Kyla Drushka. 2019. Towed surface salinity profile (SSP) data for the SPURS-2 E. Tropical Pacific R/V Revelle cruises. 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. | |||||||
