Dataset: CTD

Name: CTD profile basic hydrographic data from R/V Seward Johnson cruise SJ0516 in the North Atlantic, largely between Ireland and Iceland in 2005 (NASB 2005 project)
Published: 2009-04-13
Keywords: oceans

Cite This Dataset

Spatial Extent: N:66.5507 E:-15.0036 S:44.9901 W:-25.0028

Project:

North Atlantic Spring Bloom 2005 (NASB 2005)

Principal Investigator:

David A. Hutchins (University of Southern California, USC-HIMS)

Co-Principal Investigator:

Giacomo DiTullio (College of Charleston - Hollings Marine Lab, CoC-HML)

Steven W. Wilhelm (University of Tennessee)

BCO-DMO Data Manager:

Cynthia L. Chandler (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

13 April 2009

Version Date:

2009-04-13

Validated:

Yes

Current State:

Final no updates expected

CTD profile basic hydrographic data from R/V Seward Johnson cruise SJ0516 in the North Atlantic, largely between Ireland and Iceland in 2005 (NASB 2005 project)

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Description

CTD profile basic hydrographic data

Methods & Sampling

No documentation was provided with these data.

The PI did confirm that these data were acquired using a Seabird 911 model CTD. The DMO made logical guesses for parameter definitions and units. The reported value for 'seafloor' is 1000 for every station location. The DMO suspects that this is not the actual depth of the seafloor.

The stations are reported from leg 2 of the cruise, stations 2-1 through 2-9, and the date range is 6 June 2005 through 3 July 2005, with the deepest station to about 1000 meters.

Data Files

File
CTD.csv (Comma Separated Values (.csv), 3.25 MB) MD5:dcdf149d1993f6365d6cbf517bf4f1fd Primary data file for dataset ID 3101

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-0423418

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
SJ0516	JOH/05/0063 SJ-2004-126 33SW0516	2005-06-03	R/V Seward Johnson	David A. Hutchins (Chief Scientist)	data info

Instruments

CTD Sea-Bird 911

Supplied Name: CTD Seabird 911

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird 911

Acronym: CTD SBE 911

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0035/

Generic Description:

The Sea-Bird SBE 911 is a type of CTD instrument package. The SBE 911 includes the SBE 9 Underwater Unit and the SBE 11 Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 and SBE 11 is called a SBE 911. The SBE 9 uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 and SBE 4). The SBE 9 CTD can be configured with auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). More information from Sea-Bird Electronics.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
cruise_ID	cruise designation; name	dimensionless	cruise_id
station	station location identifier	dimensionless	station
ev_type	sampling event type abbreviation code	dimensionless	ev_type
date	date (GMT) start of sampling	dimensionless	date
time	time (GMT) start of sampling	dimensionless	time
lon	longitude, in decimal degrees, East is positive, negative denotes West	decimal degrees	lon
lat	latitude, in decimal degrees, North is positive, negative denotes South	decimal degrees	lat
seafloor	estimated depth of the bottom of the ocean	meters	depth_w
press	water pressure as measured by CTD pressure sensor	decibars	press
depth	depth; calculated from CTD pressure	meters	depth
potemp	potential temperature, ITS-90 (from primary T0,C0 sensors)	degrees Celsius	potemp
salinity	salinity; from CTD; PSS-78 (PSU)	dimensionless	sal_ctd
density	density, sigma T (from primary T0,C0 sensors)	kilograms/meter^3	density
cond	conductivity, from the CTD primary conductivity sensor	milliSiemens/centimeter	cond
Oxygen	oxygen; dissolved; from CTD	milliliters/liter	O2_ml_L
Ox_Sat	oxygen saturation; from CTD	milliliters/liter	O2sat
fluor	fluorescence, from CTD profiler, rescaled units are numerically equivalent to chlorophyll-a concentrations	micrograms/liter	fluor
PAR	Photosynthetically Active Radiation, irradiance	microEinsteins/meter^2/second	PAR
SPAR	Surficial Photosynthetically Active Radiation, surface irradiance	microEinsteins/meter^2/second	SPAR
descent	rate of descent (DMO guess ??)	meters/minute	no_bcodmo_term

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Database

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Dataset: CTD