SPURS-2 Argo float CTD profile data from the E. Tropical Pacific field campaign

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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. Part of the Argo global network of autonomous, self-reporting samplers, Argo floats drift horizontally and move vertically through the water column generally on 10 day cycles, collecting high-quality temperature, conductivity and salinity depth (CTD) profiles from the upper 2000m. Twenty five floats were deployed during SPURS-2 within the campaign spatial domain and time period, yielding approximately 1,893 profiles. These were standard Argo floats with the addition of acoustic rain gauges (PAL) in some cases. SPURS-2 ARGO data files are organized per float and profile with the vertical conductivity, salinity, temperature, pressure, depth observations per the netCDF ARGO file specification with some augmented global metadata attributes.
Dataset TypeCOMPLETE
Processing Level2
CoverageNorth Bounding Coordinate: 21.26 degrees
South Bounding Coordinate: 5.06 degrees
West Bounding Coordinate: -157.88 degrees
East Bounding Coordinate: -118.32 degrees
Time Span: 2016-Aug-27 to 2019-Mar-11
Granule Time Span: 2016-Aug-27 to 2019-Mar-11
ResolutionSpatial Resolution: 0 km (Along) x 0 km (Across)
ProjectionEllipsoid: WGS 84
Swath Width0.001 km
Name: ARGO profiler floats (ARGO)
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: Stephen Riser & Jie Yang
Release Place: Applied Physics Laboratory, University of Washington, Seattle, WA, USA
Release Date: 2019-Mar-28
Resource: http://podaac.jpl.nasa.gov/SPURS

Keyword(s)Argo, CTD, trajectory profile, Salinity, Conductivity, Temperature, Depth, Pressure, Upper Ocean, SPURS2, Eastern Tropical Pacific, ITCZ region, Cruises, Revell, insitu, SPURS
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
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 Stephen Riser & Jie Yang. 2019. SPURS Field Campaign ARGO float Products. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SPUR2-ARGO0

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For more information see Data Citations and Acknowledgments.

Journal Reference Riser, S.C., J. Yang, and R. Drucker. 2019. Observations of large-scale rainfall, wind, and sea surface salinity variability in the eastern tropical Pacific. Oceanography 32(2):42-49. https://doi.org/10.5670/oceanog.2019.211