Dataset: nep CTD
Deployment: AT7-21

CTD data from CCS LTOP Cruises

Principal Investigator:

Jane Fleischbein (Oregon State University, OSU-CEOAS)

BCO-DMO Data Manager:

Ms Dicky Allison (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

U.S. GLOBEC Northeast Pacific (NEP)

Deployment Synonyms:

AT721

Data URL:

https://www.bco-dmo.org/dataset-deployment/450083/data

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Description

Northeast Pacific CTD Data
Contact: Jane Fleischbein

More information is available in the following data reports (PDF's):
1997-1998 Report - Cruises W9707A, W9709B, W9711C, W9801B, W9804A, AR9806, AR9807, W9808A, W9809A, and W9811A.
1999-2000 Report - Cruises W9902A, W9904B, W9907A, W9909C, W9911A, W0002A, W0004B, W0007A, and W0009A.
2001 Report - Cruises W0101B, W0101C, W0103A, W0103B, W0107A, W0109A, W0110A, and W0111B.
2002-2003 Report - Cruises W0202A, W0204A, W0207A, AT7-21, W0212A, W0302A, W0304A, NH0307A, and W0309B.
2004 Report - Cruises W0408D and W0409A.

Methods & Sampling

Dataset acquisition description

Refer to the data reports above and to the CCS LTOP website.

Deployment-specific acquisition description

Northeast Pacific CTD Data

Data Processing Description

Dataset Processing Description

Parameter names were changed to conform to BCO-DMO convention; BCO-DMO corrected the date and month values for stations 24 and 25 of the W9711C cruise (month and day were reversed). 05/29/12.

More information about this dataset deployment

Funding

Award Number	Funding Source
NA67RJ0151 (NEP)	National Oceanic and Atmospheric Administration
NA86OP0589 (NEP)	National Oceanic and Atmospheric Administration
OCE-0000733	NSF Division of Ocean Sciences
OCE-9732386	NSF Division of Ocean Sciences

Instruments

CTD - profiler

Supplied Name: Conductivity, Temperature, Depth

Supplied Description:

CTD measurements taken, CTD unit unidentified

Instrument Type

Generic Name: CTD - profiler

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/130/

Generic Description:

The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast.

This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruiseid	Cruise identification (e.g. W0101C = R/V Wecoma cruise 0101C).	n/a	cruiseid
year	Year (4 digits)	n/a	year
station	Station number	n/a	station
station_name	Name of station	n/a	station
day	Day	n/a	day
month	Month	n/a	month_start
time	Time	n/a	time
depth_bottom	Bottom depth, in meters.	Meters	depth_bottom
lat	Latitude; positive = north.	Decimal degrees	lat
lon	Longitude; positive = east.	Decimal degrees	lon
press	Pressure, (depth of sample recording).	Decibars	press
temp	Water temperature.	Degrees celsius	temp
potemp	Potential temperature; originally named 'POT_T'.	degrees C	potemp
sigma_0	Potential density (sigma-t).	unknown	sigma_0
spvol_diff	Specific volume anomaly (he difference between the in situ specific volume and the specific volume of seawater at the same pressure). Originally named 'SP_V_AN'.	CL/T	no_bcodmo_term
dyn_height	Dynamic height; originally named 'DYN_HT'. Dynamic height is the integral of the specific volume over pressure. Measured in joules per kilogram.	J/kg	no_bcodmo_term
flvolt	Fluorometer voltage reading.	Volts	flvolt
O2_v	Oxygen current in volts. Originally named 'O2C'.	Volts	O2_v
O2_temp	Oxygen temperature. Originally named 'O2T'.	Degrees celsius	no_bcodmo_term
O2	Oxygen concentration (called 'O2_2' in cruises prior to W0007A).	mL/L	O2
light_trans	Light transmission. Measured in volts through cruise W0007A; measured in % light transmission after cruise W0007A. Originally named 'TRN'.	% or volts	light_trans
O2_2	Dissolved oxygen measurement from cruises prior to and including W0007A. Cruises after W0007A use 'O2'. Column originally named 'O2S'.	mL/L	O2
sal	Salinity	dimensionless	sal

Database

Contribute Data

Dataset: nep CTD
Deployment: AT7-21

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: nep CTDDeployment: AT7-21

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: nep CTD
Deployment: AT7-21