SPURS-2 research vessel Underway CTD (uCTD) data for the E. Tropical Pacific R/V Revelle cruises
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| DOI | 10.5067/SPUR2-UCTD0 |
| Short Name | SPURS2_UCTD |
| Description | The 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. |
| Version | 1.0 |
| Dataset Type | OPEN |
| Measurement | OCEANS > SALINITY/DENSITY > CONDUCTIVITY OCEANS > OCEAN TEMPERATURE > TEMPERATURE PROFILES OCEANS > SALINITY/DENSITY > SALINITY |
| Processing Level | 2 |
| Coverage | Region: Eastern Tropical Pacific Northernmost Latitude: 13.97 degrees Southernmost Latitude: 5.09 degrees Westernmost Longitude: -126.51 degrees Easternmost Longitude: -123.51 degrees Time Span: 2016-Aug-21 to 2017-Nov-11 |
| Resolution | Spatial Resolution: 0 km (Along) x 0 km (Across) |
| Projection | Type: WGS84 Detail: Ellipsoid: WGS84 |
| Latency | hours |
| Swath Width | 0.001 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 UCTD SENSOR Name: Underway Conductivity, Temperature, Depth profiler (UCTD) Swath Width: 0.001 km Description: SPURS Ship-based Underway CTD (eg. Oceanscience UCTD) |
| Project | NASA Salinity Processes in the Upper Ocean Regional Study (SPURS) |
| Data Provider | 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 |
| Persistent ID | PODAAC-SPUR2-UCTD0 |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
| PO.DAAC DRIVE | https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/uctd |
| OPENDAP | https://podaac-opendap.jpl.nasa.gov/opendap/allData/insitu/L2/spurs2/uctd/ |
| Format (Compression) | NETCDF (NONE) |
| Read Software | |
| R | https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/sw/R R Reader and calling routines |
| MATLAB | https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/sw/matlab MATLAB Reader and calling routines |
| Project Materials | |
| SPURS-2 Cruise Documentation Package | https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/docs/CruiseReports/ Cruise Reports |
| SPURS-2 Data Documentation Package | https://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 page | http://podaac.jpl.nasa.gov/spurs Field Campaign and Instrument Overview |
| SPURS Project Website | http://spurs.jpl.nasa.gov/ Project Website for SPURS |
| Citation | Janet Sprintall. 2019. SPURS-2 research vessel Underway CTD (uCTD) data for the E. Tropical Pacific R/V Revelle cruises. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SPUR2-UCTD0.
For more information see Data Citations and Acknowledgments.
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| 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 | |||||||
