SPURS-2 Neutrally buoyant float data for the E. Tropical Pacific field campaign
(SPURS2_FLOAT_NEUTRALLYBUOYANT)| Version | 1.0 |
| Processing Level | 2 |
| Start/Stop Date | 2016-Aug-26 to 2016-Dec-29 |
| Short Name | SPURS2_FLOAT_NEUTRALLYBUOYANT |
| 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. Neutrally buoyant floats (also known as Mixed Layer Floats - MLF) drift and move through the water column providing continuous CTD temperature and salinity profiles and GPS surface position location data. One float was deployed in SPURS-2 during the first Revelle cruise in August 2016 and recovered in December 2016 after 3.5 months about 1800 km east of the central mooring. The MLF data are provided in netCDF file format with standards compliant metadata. |
| DOI | 10.5067/SPUR2-NBFLT |
| Measurement | OCEANS > SALINITY/DENSITY > SALINITY OCEANS > OCEAN TEMPERATURE > TEMPERATURE PROFILES |
| Platform/Sensor | NeutrallyBuoyantFloat / Platform Name: SPURS-I University of Washington Neutrally Buoyant Float/Mixed layer float (NeutrallyBuoyantFloat) Orbit Period: 0.0 minutes Inclination Angle: 0.0 degrees CTD SENSOR Name: Conductivity, Temperature, Depth (CTD) Swath Width: 0.001 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. |
| Project | NASA Salinity Processes in the Upper Ocean Regional Study (SPURS) |
| Data Provider | Publisher: SPURS Data Management PI, Fred Bingham Creator: Andrey Shcherbina Release Place: APL, University of Washington, 1013 NE 40th St, Seattle, WA 98105, USA Release Date: 2019-Oct-24 Resource: http://podaac.jpl.nasa.gov/SPURS |
| Format | netCDF-4 |
| Keyword(s) | Neutrally buoyant float, trajectory profile, Salinity, Pressure, Depth, 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: 11.891 degrees South Bounding Coordinate: 7.855 degrees West Bounding Coordinate: -125.015 degrees East Bounding Coordinate: -108.951 degrees Time Span: 2016-Aug-26 to 2016-Dec-29 Granule Time Span: 2016-Aug-26 to 2016-Dec-29 Projection Projection Type: WGS84 Ellipsoid: WGS 84 |
| DIRECT ACCESS | |
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| Available for access in-region with AWS Cloud | |
Region | |
| us-west-2 | |
| podaac-ops-cumulus-protected/SPURS2_FLOAT_NEUTRALLYBUOYANT/ | |
| podaac-ops-cumulus-public/SPURS2_FLOAT_NEUTRALLYBUOYANT/ | |
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| Name | Long Name | Unit |
|---|---|---|
| ctd_depth | Depth at the two CTD units | m |
| ctd_pressure | Pressure at the two CTD units | dbar |
| ctd_salinity | Sea Water Practical Salinity at the two CTD units | 1 |
| ctd_temperature | Sea Water Temperature at the two CTD units | degrees_C |
| ctd_time | Time of Sea-Bird Scientific SBE 41 | days since 1950-01-01T00:00:00 |
| fast_depth | Depth at the float center | m |
| fast_pressure | Fast Pressure at the float center | dbar |
| fast_time | Time of Druck PDCR 910-200 | days since 1950-01-01T00:00:00 |
| float_depth | Depth at the float center | m |
| float_pressure | Pressure at the float center | dbar |
| latitude | Latitude of GARMIN GPS 15H/L | degrees_north |
| longitude | Longitude of GARMIN GPS 15H/L | degrees_east |
| time | Time of GARMIN GPS 15H/L | days since 1950-01-01T00:00:00 |
| GENERAL DOCUMENTATION | |
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| DATA CITATION POLICY | |
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| DATA RECIPE | |
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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 | Andrey Shcherbina. 2019. SPURS-2 Field Campaign Neutrally Buoyant Float Data Products. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SPUR2-NBFLT
For more information see Data Citations and Acknowledgments.
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| Journal Reference | Shcherbina, A.Y., E.A. D'Asaro, and R.R. Harcourt. 2019. Rain and sun create slippery layers in the Eastern Pacific Fresh Pool. Oceanography 32(2):98 - 107, https://doi.org/10.5670/oceanog.2019.217. . |
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