SPURS-2 underway surface pCO2, DIC and pH data for the E. Tropical Pacific field campaign R/V Revelle cruises
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DOI10.5067/SPUR2-PCO20
Short NameSPURS2_UNDERWAY_pCO2_DIC_pH
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. During both Revelle cruises, continuous measurements of the partial pressure of CO2 (pCO2), dissolved inorganic carbon (DIC), and pH at surface (0m) and 5m depths were made on water pumped continuously from the Salinity Snake and the ship's intake port. In addition to these measurements, observational data from the salinity snake and thermosalinograph also include water temperature and salinity time series at the same depths. The temporal resolution of the observations range from 3 seconds (pH) to 3 minutes (DIC). All pCO2 and associated underway data comprising this dataset are in netCDF file format with standards compliant metadata. Due to issues with the quality of the 2016 underway data, only the data file for the 2017 cruise is available.
Version1.0
Dataset TypeOPEN
MeasurementOCEANS > OCEAN CHEMISTRY > INORGANIC CARBON
OCEANS > SALINITY/DENSITY > SALINITY
OCEANS > OCEAN CHEMISTRY > PH
OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE
OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
OCEANS > OCEAN CHEMISTRY > DISSOLVED GASES
Processing Level2
CoverageRegion: Eastern Tropical Pacific
Northernmost Latitude: 16.411 degrees
Southernmost Latitude: 1.383 degrees
Westernmost Longitude: -125.572 degrees
Easternmost Longitude: -121.545 degrees
Time Span: 2017-Oct-21 to 2017-Nov-13
Granule Time Span: 2017-Oct-21 to 2017-Nov-12
ResolutionSpatial Resolution: 0 km (Along) x 0 km (Across)
ProjectionType: WGS84
Detail:
Ellipsoid: WGS84
Latency0 hours
Swath Width0.001 km
Sample Frequency-
Temporal Repeat (Nominal)1 Day
Temporal Repeat (Min)-
Temporal Repeat (Max)-
Platform/Sensor
R/V Revelle
Platform
Name: R/V Roger Revelle (SIO) (R/V Revelle)
Orbit Period: 0 minutes
Inclination Angle: 0 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
THERMOSALINOGRAPHS
SENSOR
Name: Ship-based Thermosalinograph (THERMOSALINOGRAPHS)
Swath Width: 0.001 km
Description: SPURS Ship-based Thermosalinograph (eg. sea-bird SBE 21 & 45 TSG)

R/V Revelle
Platform
Name: R/V Roger Revelle (SIO) (R/V Revelle)
Orbit Period: 0 minutes
Inclination Angle: 0 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
SS
SENSOR
Name: Salinity snake (SS)
Swath Width: 0.01 km
Description: Salinity snake

ProjectNASA Salinity Processes in the Upper Ocean Regional Study (SPURS)
Data ProviderCreator: David Ho
Release Place: SOEST, University of Hawaii, 1680 East West Rd, POST 802, Honolulu, HI 96822, USA
Release Date: 2020-May-14
Resource: http://podaac.jpl.nasa.gov/SPURS
Keyword(s)pCO2, DIC, pH, salinity, temperature, surface, CTD, trajectory, Upper Ocean, SPURS2, Eastern Tropical Pacific, ITCZ region, Cruises, Revelle, insitu, SPURS, oceanographic campaign
Persistent IDPODAAC-SPUR2-PCO20
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Project Materials
SPURS-2 Cruise Documentation Packagehttps://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/docs/CruiseReports/
Cruise Reports
SPURS-2 Data Documentation Packagehttps://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/docs/DataDocumentation/
Data Submission Report, Instrument Calibration Report, etc
Additional Sites
PO.DAAC SPURS Mission pagehttp://podaac.jpl.nasa.gov/spurs
Field Campaign and Instrument Overview
SPURS Project Websitehttp://spurs.jpl.nasa.gov/
Project Website for SPURS
Citation David Ho. 2020. SPURS-2 underway surface pCO2, DIC and pH data for the E. Tropical Pacific field campaign R/V Revelle cruises. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SPUR2-PCO20.

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For more information see Data Citations and Acknowledgments.

Journal Reference Pierrot, D., C. Neill, K. Sullivan, R. Castle, R. Wanninkhof, H. Luger, T. Johannessen, A. Olsen, R.A. Feely, and C.E. Cosca. 2009. Recommendations for autonomous underway pCO2 measuring systems and data reduction routines. Deep Sea Research Part II 56:512-522. https://doi.org/10.1016/j.dsr2.2008.12.005