SPURS-2 research vessel Underway CTD (uCTD) data for the E. Tropical Pacific R/V Revelle cruises

3 Publications Cited this Dataset
Citation metrics available for years (2014-2021)
Processing Level2
Start/Stop Date2016-Aug-21 to 2017-Nov-11
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. An underway-CTD (uCTD) is a towed profiling CTD instrument providing salinity and temperature observations from the surface to 500m while underway at up to 12 kts. A total of 262 and 501 uCTD casts were performed during the first and second Revelle cruises respectively. uCTD data files (1 per cruise) are in netCDF format and each contain the observational data for multiple deployments, binned in 6 or 8m depth intervals.
R/V Revelle
Name: R/V Roger Revelle (SIO) (R/V Revelle)
Orbit Period: 0.0 minutes
Inclination Angle: 0.0 degrees
Name: Underway Conductivity, Temperature, Depth profiler (UCTD)
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: Janet Sprintall
Release Place: Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA
Release Date: 2019-Aug-15
Resource: http://podaac.jpl.nasa.gov/SPURS

Keyword(s)UCTD, trajectory profile, 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: 13.97 degrees
South Bounding Coordinate: 5.09 degrees
West Bounding Coordinate: -126.51 degrees
East Bounding Coordinate: -123.51 degrees
Time Span: 2016-Aug-21 to 2017-Nov-11
Granule Time Span: 2016-Aug-21 to 2017-Nov-11
Projection Type: WGS84
Ellipsoid: WGS 84
NameLong NameUnit
depthDepth of uCTDm
latitudeLatitude of uCTDdegrees_north
longitudeLongitude of uCTDdegrees_east
potential_temperaturePotential Temperature of uCTD measurementdegrees_C
pressurePressure of uCTD measurementdbar
salinitySalinity of uCTD measurement1
sea_water_densitySea Water Density of uCTD measurementkg / m^3
serial_numberSerial Number of uCTD
sigma_thetaSea Water Sigma Theta of uCTD measurementkg / m^3
speed_of_sound_in_sea_waterSpeed of Sound in Sea Water of uCTD measurementm / s
temperatureTemperature of uCTD measurementdegrees_C
timeTime of uCTDdays since 1950-01-01T00:00:00
uEastward Velocity from ADCPm / s
vNorthward Velocity from ADCPm / s
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 Janet Sprintall. 2019. SPURS Field Campaign UCTD Products. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SPUR2-UCTD0

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For more information see Data Citations and Acknowledgments.

Journal Reference Sprintall, J. 2019. Upper ocean salinity stratification during SPURS-2. Oceanography 32(2):40 - 41, https://doi.org/10.5670/oceanog.2019.210