SPURS-2 Neutrally buoyant float data for the E. Tropical Pacific field campaign

Processing Level2
Start/Stop Date2016-Aug-26 to 2016-Dec-29
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. Neutrally buoyant floats (also known as Mixed Layer Floats - MLF) drift and move through the water column providing continuous CTD temperature and salinity profiles and GPS surface position location data. One float was deployed in SPURS-2 during the first Revelle cruise in August 2016 and recovered in December 2016 after 3.5 months about 1800 km east of the central mooring. The MLF data are provided in netCDF file format with standards compliant metadata.
Name: SPURS-I University of Washington Neutrally Buoyant Float/Mixed layer float (NeutrallyBuoyantFloat)
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: Andrey Shcherbina
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)Neutrally buoyant float, trajectory profile, Salinity, Pressure, Depth, Temperature, 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: 11.891 degrees
South Bounding Coordinate: 7.855 degrees
West Bounding Coordinate: -125.015 degrees
East Bounding Coordinate: -108.951 degrees
Time Span: 2016-Aug-26 to 2016-Dec-29
Granule Time Span: 2016-Aug-26 to 2016-Dec-29
Projection Type: WGS84
Ellipsoid: WGS 84
NameLong NameUnit
ctd_depthDepth at the two CTD unitsm
ctd_pressurePressure at the two CTD unitsdbar
ctd_salinitySea Water Practical Salinity at the two CTD units1
ctd_temperatureSea Water Temperature at the two CTD unitsdegrees_C
ctd_timeTime of Sea-Bird Scientific SBE 41days since 1950-01-01T00:00:00
fast_depthDepth at the float centerm
fast_pressureFast Pressure at the float centerdbar
fast_timeTime of Druck PDCR 910-200days since 1950-01-01T00:00:00
float_depthDepth at the float centerm
float_pressurePressure at the float centerdbar
latitudeLatitude of GARMIN GPS 15H/Ldegrees_north
longitudeLongitude of GARMIN GPS 15H/Ldegrees_east
timeTime of GARMIN GPS 15H/Ldays since 1950-01-01T00:00:00
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 Andrey Shcherbina. 2019. SPURS-2 Field Campaign Neutrally Buoyant Float Data Products. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SPUR2-NBFLT

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For more information see Data Citations and Acknowledgments.

Journal Reference Shcherbina, A.Y., E.A. D'Asaro, and R.R. Harcourt. 2019. Rain and sun create slippery layers in the Eastern Pacific Fresh Pool. Oceanography 32(2):98 - 107, https://doi.org/10.5670/oceanog.2019.217.