SPURS-2 Towed surface salinity profile (SSP) data for the E. Tropical Pacific R/V Revelle cruises

3 Publications Cited this Dataset
Citation metrics available for years (2014-2022)
Processing Level2
Start/Stop Date2016-Aug-27 to 2017-Nov-11
Short NameSPURS2_SSP
DescriptionThe 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.
Name: SPURS-I University of Washington Seaglider (Seaglider)
Orbit Period: 0.0 minutes
Inclination Angle: 0.0 degrees
Name: Conductivity, Temperature, Depth (CTD)
Swath Width: 0.001 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectNASA Salinity Processes in the Upper Ocean Regional Study (SPURS)
Data ProviderPublisher: 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
Spatial Resolution: 1 Meters x 1 Meters
Temporal Resolution: 1 Day
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
Projection Type: WGS84
Ellipsoid: WGS 84
NameLong NameUnit
deployment_numberDeployment Number
latitudeLatitude of Surface Salinity Profiler measurementdegrees_north
longitudeLongitude of Surface Salinity Profiler measurementdegrees_east
lower_error_bound_tke_dissipation_rate_at_0p37mLower uncertainty limit of Turbulent kinetic energy dissipation rate at 0.37m depth, as specified in Iyer et al. (2021), JTech and Iyer and Drushka, JPOW/kg
sea_water_pressure_at_0p12mSeawater Pressure at 0.12m depthdbar
sea_water_pressure_at_0p23mSeawater Pressure at 0.23m depthdbar
sea_water_pressure_at_0p54mSeawater Pressure at 0.54m depthdbar
sea_water_pressure_at_1p10mSeawater Pressure at 1.10m depthdbar
sea_water_salinity_at_0p05mSeawater Salinity at 0.05m depth1
sea_water_salinity_at_0p12mSeawater Salinity at 0.12m depth1
sea_water_salinity_at_0p23mSeawater Salinity at 0.23m depth1
sea_water_salinity_at_0p54mSeawater Salinity at 0.54m depth1
sea_water_salinity_at_1p10mSeawater Salinity at 1.10m depth1
sea_water_temperature_at_0p05mSeawater Temperature at 0.05m depthdegrees_C
sea_water_temperature_at_0p05m_tsgSeawater Temperature at 0.05m depth measured with the Salinity Snakedegrees_C
sea_water_temperature_at_0p12mSeawater Temperature at 0.12m depthdegrees_C
sea_water_temperature_at_0p23mSeawater Temperature at 0.23m depthdegrees_C
sea_water_temperature_at_0p54mSeawater Temperature at 0.54m depthdegrees_C
sea_water_temperature_at_1p10mSeawater Temperature at 1.10m depthdegrees_C
timeTime of Surface Salinity Profiler measurementdays since 1950-01-01T00:00:00
tke_dissipation_rate_at_0p37mTurbulent kinetic energy dissipation rate at 0.37m depthW/kg
upper_error_bound_tke_dissipation_rate_at_0p37mUpper uncertainty limit of Turbulent kinetic energy dissipation rate at 0.37m depth, as specified in Iyer et al. (2021), JTech and Iyer and Drushka, JPOW/kg
Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
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

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For more information see Data Citations and Acknowledgments.

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