SPURS-2 research vessel Underway Salinity Profiling System (USPS) data for the E. Tropical Pacific R/V Revelle cruises

(SPURS2_USPS)
1 Publication Cited this Dataset
Citation metrics available for years (2014-2021)
Version1.0
Processing Level2
Start/Stop Date2016-Aug-15 to 2017-Nov-15
Short NameSPURS2_USPS
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. Underway surface profiling systems (USPS) are automated measurement systems coupled to a research vessels water intake and GPS systems. They provide continuous, along-track surface temperature and salinity measurements at depths of 2, 3 and 5 m using through-hull ports in the bow of the ship. Both SPURS-2 cruises had USPS and associated thermosalinograph (TSG) instrumentation, with measurements calibrated against onboard salinometers. There is one USPS netCDF containing the complete series for each of the 2 cruises.
DOI10.5067/SPUR2-USPS0
MeasurementOCEANS > OCEAN TEMPERATURE > TEMPERATURE PROFILES
OCEANS > SALINITY/DENSITY > CONDUCTIVITY
OCEANS > SALINITY/DENSITY > SALINITY
Platform/Sensor
R/V Revelle
Platform
Name: R/V Roger Revelle (SIO) (R/V Revelle)
Orbit Period: 0.0 minutes
Inclination Angle: 0.0 degrees
/
USPS
SENSOR
Name: Underway Surface Profiling System (USPS)
Swath Width: 0.01 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

R/V Revelle
Platform
Name: R/V Roger Revelle (SIO) (R/V Revelle)
Orbit Period: 0.0 minutes
Inclination Angle: 0.0 degrees
/
THERMOSALINOGRAPHS
SENSOR
Name: Ship-based Thermosalinograph (THERMOSALINOGRAPHS)
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: Asher, W., E. Thompson and K. Drushka
Release Place: Applied Physics Laboratory, University of Washington, Seattle, WA, USA
Release Date: 2019-Aug-15
Resource: http://podaac.jpl.nasa.gov/SPURS

FormatnetCDF-4
Keyword(s)USPS, underway surface profiling system, TSG, thermosalinograph, trajectory, Salinity, Conductivity, 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
Resolution
Spatial Resolution: 1 Meters x 1 Meters
Temporal Resolution: 1 Day
 
Coverage
North Bounding Coordinate: 25.84 degrees
South Bounding Coordinate: 5.06 degrees
West Bounding Coordinate: -157 degrees
East Bounding Coordinate: -119.5 degrees
Time Span: 2016-Aug-15 to 2017-Nov-15
Granule Time Span: 2016-Aug-15 to 2017-Nov-15
 
Projection
Ellipsoid: WGS 84
 
NameLong NameUnit
air_pressureAir Pressurembar
air_temperatureAir Temperaturedegrees_C
course_over_groundCourse Over Ground of Underway Salinity Profiling System measurementdegrees
cumulative_rainCumulative Rainmm
density_at_2mDensity at 2m of Underway Salinity Profiling System measurementkg m-3
density_at_3mDensity at 3m of Underway Salinity Profiling System measurementkg m-3
downwelling_longwave_infrared_radiationDownwelling Longwave (infrared) RadiationW / m^2
downwelling_shortwave_solar_radiationDownwelling Shortwave (solar) RadiationW / m^2
latitudeLatitude of Underway Salinity Profiling System measurementdegrees_north
longitudeLongitude of Underway Salinity Profiling System measurementdegrees_east
pressure_at_2mPressure at 2m of Underway Salinity Profiling System measurementdbar
pressure_at_3mPressure at 3m of Underway Salinity Profiling System measurementdbar
relative_humidityRelative Humiditypercent
salinity_at_2mSalinity at 2m of Underway Salinity Profiling System measurement1
salinity_at_3mSalinity at 3m of Underway Salinity Profiling System measurement1
ship_heaveShip Heavem
ship_pitchShip Pitch Angledegree
ship_rollShip Roll Angledegree
speed_over_groundSpeed Over Ground of Underway Salinity Profiling System measurementkt
temperature_at_2mTemperature at 2m of Underway Salinity Profiling System measurementdegrees_C
temperature_at_3mTemperature at 3m of Underway Salinity Profiling System measurementdegrees_C
timeTime of Underway Salinity Profiling System measurementdays since 1950-01-01T00:00:00
uncorrected_salinity_at_5mUncorrected Salinity at 5m of Underway Salinity Profiling System measurement1
uncorrected_temperature_at_5mUncorrected Temperature at 5m of Underway Salinity Profiling System measurementdegrees_C
wind_directionTrue Wind Direction at about 17 m above sea level (direction wind came from)degree
wind_speedWind Speedm / 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 Asher, W., E. Thompson and K. Drushka. 2019. SPURS Field Campaign USPS Products. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SPUR2-USPS0

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For more information see Data Citations and Acknowledgments.

Journal Reference Asher, W. E., Jessup, A. T., Branch, R., & Clark, D. (2014). Observations of rain induced near surface salinity anomalies. Journal of Geophysical Research: Oceans 119(8) 5483-5500. https://doi.org/10.1002/2014JC009954

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