SPURS-2 Argo float CTD profile data from the E. Tropical Pacific field campaign

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. Part of the Argo global network of autonomous, self-reporting samplers, Argo floats drift horizontally and move vertically through the water column generally on 10 day cycles, collecting high-quality temperature, conductivity and salinity depth (CTD) profiles from the upper 2000m. Twenty five floats were deployed during SPURS-2 within the campaign spatial domain and time period, yielding approximately 1,893 profiles. These were standard Argo floats with the addition of acoustic rain gauges (PAL) in some cases. SPURS-2 ARGO data files are organized per float and profile with the vertical conductivity, salinity, temperature, pressure, depth observations per the netCDF ARGO file specification with some augmented global metadata attributes.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated September 11, 2025, 04:13 (UTC)
Created April 1, 2025, 19:14 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
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harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/SPUR2-ARGO0
landingPage https://podaac.jpl.nasa.gov/CitingPODAAC
modified 2025-09-10
programCode {026:000}
publisher SPURS Project;NASA/JPL/PODAAC
resource-type Dataset
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source_hash aa55e1d9f788206e052b250f1d4b1320331b7c61b00192bd8a13e456358ea5c0
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spatial ["CARTESIAN",[{"WestBoundingCoordinate":-157.88,"SouthBoundingCoordinate":5.06,"EastBoundingCoordinate":-118.32,"NorthBoundingCoordinate":21.26}]]
temporal 2016-08-27/2016-08-27
theme {"Earth Science"}