SPURS-1 research vessel CTD profile data for N. Atlantic cruises

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DOI	10.5067/SPUR1-CTD00
Short Name	SPURS1_CTD
Description	The 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. CTD (Conductivity, Temperature, Depth) profilers were deployed at stations on each of the 5 SPURS-1 cruises. These shipboard lowered CTD probes provide continuous conductivity, salinity, and temperature vertical profile observations at fixed sampling locations. There were 100, 52, 17, 22 and 94 CTD casts made during the Knorr, Endeavor-1, Endeavor-2, Sarmiento, and Thalassa cruises respectively. All CTD data were calibrated using shipboard salinometers using IAPSO standard seawater. SPURS-1 shipboard CTD data files (one per cruise) contain the observational data processed to 1 meter bin 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: SPURS-1 N.Atlantic Salinity maximum region Northernmost Latitude: 43 degrees Southernmost Latitude: 23 degrees Westernmost Longitude: -63 degrees Easternmost Longitude: -37 degrees Time Span: 2012-Aug-16 to 2013-Oct-05
Resolution	Spatial Resolution: 0 km (Along) x 0 km (Across)
Projection	Type: WGS84 Detail: Ellipsoid:
Latency	9000 hours
Swath Width	0.001 km
Sample Frequency	-
Temporal Repeat (Nominal)	1 Day
Temporal Repeat (Min)	-
Temporal Repeat (Max)	-
Platform/Sensor	R/V Knorr Platform Name: R/V Knorr (WHOI) (R/V Knorr) Orbit Period: 0 minutes Inclination Angle: 0 degrees Ascending Node: 1970-Jan-01 00:00:00 / CTD SENSOR Name: Conductivity, Temperature, Depth (CTD) Swath Width: 0.001 km Description: Saildrone Teledyne CTD (2632) R/V Endeavor Platform Name: R/V Endeavor (WHOI) (R/V Endeavor) Orbit Period: 0 minutes Inclination Angle: 0 degrees Ascending Node: 1970-Jan-01 00:00:00 / CTD SENSOR Name: Conductivity, Temperature, Depth (CTD) Swath Width: 0.001 km Description: Saildrone Teledyne CTD (2632) R/V Sarmiento Platform Name: R/V Sarmiento De Gamboa (SPAIN) (R/V Sarmiento) Orbit Period: 0 minutes Inclination Angle: 0 degrees Ascending Node: 1970-Jan-01 00:00:00 / CTD SENSOR Name: Conductivity, Temperature, Depth (CTD) Swath Width: 0.001 km Description: Saildrone Teledyne CTD (2632) R/V Thalassa Platform Name: R/V Thalassa (IFREMER, France) (R/V Thalassa) Orbit Period: 0 minutes Inclination Angle: 0 degrees Ascending Node: 1970-Jan-01 00:00:00 / CTD SENSOR Name: Conductivity, Temperature, Depth (CTD) Swath Width: 0.001 km Description: Saildrone Teledyne CTD (2632)
Project	NASA Salinity Processes in the Upper Ocean Regional Study (SPURS)
Data Provider	Creator: SPURS PROJECT, Fred Bingham Release Place: Department of Physics and Physical Oceanography, University on North Carolina, Wilmington, NC, USA Release Date: 2015-May-11 Resource: http://podaac.jpl.nasa.gov/SPURS
Keyword(s)	CTD, vertical profile, Salinity, Conductivity, Temperature, Depth, Pressure, Upper Ocean, SPURS1, North Atlantic Ocean, salinity maximum region, Cruises, Endeavor, Knorr, Sarmiento, Thalassa, Vessel, insitu, SPURS
Persistent ID	PODAAC-SPUR1-CTD00

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/spurs1/ctd
OPENDAP	https://podaac-opendap.jpl.nasa.gov/opendap/allData/insitu/L2/spurs1/ctd/
Format (Compression)	NETCDF (NONE)
Read Software
R	https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs1/sw/R R Reader and calling routines
MATLAB	https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs1/sw/Matlab MATLAB Reader and calling routines

Project Materials
SPURS-1 Data Documentation Package	https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs1/docs/DataDocumentation/ Data Submission Report, Instrument Calibration Report, etc
SPURS-1 Cruise Documentation Package	https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs1/docs/CruiseReports/ Cruise Reports
Archived SPURS-1 Website Content	https://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs1/docs/SpursWebsiteContent/ Meeting Materials, Cruise Blogs, and other archive artifacts
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

SPURS PROJECT, Fred Bingham. 2015. SPURS-1 research vessel CTD profile data for N. Atlantic cruises. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SPUR1-CTD00.

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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, http://dx.doi.org/10.5670/oceanog.2015.01.