Neutrally buoyant float data for the SPURS-1 N. Atlantic field campaign

Neutrally buoyant float data for the SPURS-1 N. Atlantic field campaign
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DescriptionThe SPURS (Salinity Processes in the Upper Ocean Regional Study) project is an oceanographic process study and associated field program that aim to elucidate key mechanisms responsible for near-surface salinity variations in the oceans. The project involves 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 and SMOS satellites, provide a detailed characterization of salinity structure over a continuum of spatio-temporal scales. The SPURS-1 campaign involved a series of 5 cruises during 2012 - 2013 seeking to characterize the salinity structure and balance in a high salinity, high evaporation, and low rainfall region of the subtropical North Atlantic. It aims to resolve processes responsible for maintaining the subtropical surface salinity maximum in this region and within a 900 x 800-mile square study area centered at 25N, 38W. Neutrally buoyant floats drift and move through the water column providing continuous temperature and salinity profiles via 2 integrated CTDs and GPS surface position location data. Two floats were deployed during SPURS-1, one during the Knorr cruise in September 2012 another deployed during the April 2013 Endeavor cruise. Recoveries were in April and September 2013 respectively. Neutrally buoyant float trajectory profile data include georeferenced time series of salinity, temperature, and pressure/depth observations.
Dataset TypeOPEN
MeasurementOceans > Ocean Temperature > Temperature Profiles
Oceans > Salinity/Density > Salinity
Processing Level2
CoverageRegion: SPURS-1 N.Atlantic Salinity maximum region
Northernmost Latitude: 26 degrees
Southernmost Latitude: 21 degrees
Westernmost Longitude: -39 degrees
Easternmost Longitude: -34 degrees
Time Span: 2012-Sep-18 to 2013-Feb-22
ResolutionSpatial Resolution: 0 km (Along) x 0 km (Across)
ProjectionType: WGS84
Latency9000 hours
Swath Width0.001 km
Sample Frequency-
Temporal Repeat (Nominal)1 Day
Temporal Repeat (Min)-
Temporal Repeat (Max)-
Name: SPURS-I University of Washington Neutrally Buoyant Float (SPURS1_NeutrallyBuoyantFloat)
Orbit Period: 0 minutes
Inclination Angle: 0 degrees
Ascending Node: 1970-Jan-01 00:00:00
Name: Neutrally Buoyant Float CTD (FLOAT_CTD)
Swath Width: 0.001 km
Description: Neutrally Buoyant Float CTD

ProjectNASA Salinity Processes in the Upper Ocean Regional Study (SPURS)
Data ProviderCreator: SPURS PROJECT, Fred Bingham
Release Place: Department of Physics and Physical Oceanography, University on North Carolina, Wilmington, NC, USA
Release Date: 2015-May-11
Keyword(s)Neutrally buoyant float, trajectory profile, Salinity, Pressure, Depth, Temperature, Upper Ocean, SPURS1, North Atlantic Ocean, salinity maximum region, insitu, SPURS, Knorr, Endeavor
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Project Materials
SPURS-1 Cruise Documentation Package
Cruise Reports
Archived SPURS-1 Website Content
Meeting Materials, Cruise Blogs, and other archive artifacts
SPURS-1 Data Documentation Package
Data Submission Report, Instrument Calibration Report, etc
Additional Sites
PO.DAAC SPURS Mission page
Field Campaign and Instrument Overview
SPURS Project Website
Project Website for SPURS
Citation SPURS PROJECT, Fred Bingham. 2015. Neutrally buoyant float data for the SPURS-1 N. Atlantic field campaign. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at

For more information see Data Citations and Acknowledgments.

Journal Reference E.Lindstrom, F.Bryan, R.Schmitt. 2015. SPURS: Salinity Processes in the Upper-ocean Regional Study - The North Atlantic Experiment. Oceanography 28(1):14-19,