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| DOI | 10.5067/SPUR2-USPS0 |
| Short Name | SPURS2_USPS |
| 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. 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. |
| 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: 25.84 degrees Southernmost Latitude: 5.06 degrees Westernmost Longitude: -157 degrees Easternmost Longitude: -119.5 degrees Time Span: 2016-Aug-15 to 2017-Nov-15 Granule Time Span: 2016-Aug-15 to 2017-Nov-15 |
| Resolution | Spatial Resolution: 0 km (Along) x 0 km (Across) |
| Projection | Type: 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 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 USPS SENSOR Name: Underway Surface Profiling System (USPS) Swath Width: 0.01 km Description: Underway Surface Profiling System (USPS) |
| Project | NASA Salinity Processes in the Upper Ocean Regional Study (SPURS) |
| Data Provider | 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 |
| 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 |
| Persistent ID | PODAAC-SPUR2-USPS0 |
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/usps |
| OPENDAP | https://podaac-opendap.jpl.nasa.gov/opendap/allData/insitu/L2/spurs2/usps/ |
| Format (Compression) | NETCDF (NONE) |
| Read Software | |
| R | https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/sw/R R read software |
| MATLAB | https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/sw/matlab MATLAB read software |
| 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 | Asher, W., E. Thompson and K. Drushka. 2019. SPURS-2 research vessel Underway Salinity Profiling System (USPS) 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-USPS0.
For more information see Data Citations and Acknowledgments.
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| 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. | |||||||
