Dataset: CTD_ji
Deployment: OC291

CTD for long term mooring cruises, GLOBEC Georges Bank, 1994-1999

Principal Investigator:

Jim Irish (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

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

Project:

U.S. GLOBEC Georges Bank (GB)

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/450549/data

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Description

GLOBEC Georges Bank Long-Term Moored Array Component

Standard CTD Sections

positions of CTD stations


Long Term Section Stations
	LT01 41 31.0 N x 67 36.0 W
	LT02 41 24.5 N x 67 32.5 W
	LT03 41 17.0 N x 67 28.5 W
	LT04 41 12.5 N x 67 26.5 W
	LT05 41 09.5 N x 67 24.5 W
	LT06 41 06.0 N x 67 22.5 W
	LT07 41 02.0 N x 67 20.8 W
	LT08 40 58.0 N x 67 19.0 W
	LT09 40 54.5 N x 67 17.0 W
	LT10 40 50.5 N x 67 15.0 W
	LT11 40 47.0 N x 67 13.0 W
	LT12 40 41.5 N x 67 10.5 W
	LT13 40 35.7 N x 67 08.0 W
	LT14 40 30.0 N x 67 05.0 W

NE Peak Section Stations
	NE01 41 28.52 N x 67 12.17 W
	NE02 41 31.02 N x 67 05.77 W
	NE03 41 33.32 N x 66 57.77 W
	NE04 41 35.52 N x 66 50.87 W
	NE05 41 38.12 N x 66 43.07 W
	NE06 41 40.32 N x 66 35.97 W
	NE07 41 42.72 N x 66 28.77 W
	NE08 41 45.12 N x 66 21.67 W
	NE09 41 47.42 N x 66 14.37 W
	NE10 41 49.72 N x 66 06.67 W
	NE11 41 52.02 N x 65 58.87 W
	NE12 41 54.62 N x 65 51.77 W
	NE13 41 56.82 N x 65 44.57 W
	NE14 41 59.20 N x 65 37.50 W

Data submitted by:
James Irish
Woods Hole Oceanographic Institution
Woods Hole, MA 02543

phone:  508 289 2732
fax:    508 457 2195
e-mail: jirish@whoi.edu 
   
Updated July 14, 2005, gfh

Methods & Sampling

Dataset acquisition description

CTD for long term mooring cruises

Deployment-specific acquisition description

CTD for long term mooring cruises

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
unknown GB NOAA	National Oceanic and Atmospheric Administration
unknown GB NSF	National Science Foundation

Instruments

CTD Falmouth Scientific Instruments

Supplied Description:

CTD measurements taken by the Falmouth Scientific Instruments sensor

Instrument Type

Generic Name: CTD Falmouth Scientific Instruments

Acronym: CTD FSI

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

Generic Description:

CTD measurements taken by the Falmouth Scientific Instruments sensor.

CTD Neil Brown Mark III

Supplied Name: MkIIICTD

Supplied Description:

formerly Neil Brown Mark III CTD, currently manufactured by General Oceanics

Instrument Type

Generic Name: CTD Neil Brown Mark III

Acronym: CTD NBIS MK3

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0002/

Generic Description:

The Neil Brown Instrument Systems Mark III Conductivity, Temperature, Depth (CTD) instrument is an integral unit containing pressure, temperature and conductivity sensors with an optional dissolved oxygen sensor in a pressure-hardened casing. Developed in the 1970s, the Neil Brown CTD unit was able to digitize conductivity, temperature and pressure measurements at sufficient speeds to permit oceanographers to study 10 cm features at winch lowering speeds of 30 meters per minute. The most widely used variant in the 1980s and 1990s was the MK3B. The MK3C fitted with an improved pressure sensor to reduce hysteresis was developed to meet the requirements of the WOCE project. The instrument is no longer in production, but is supported (repair and calibration) by General Oceanics.

CTD Sea-Bird 911

Supplied Name: CTD Seabird 911

Supplied Description:

CTD measurements taken by a SBE911 (SeaBird) CTD instrument package

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.

Sea-Bird SBE 25 Sealogger CTD

Supplied Name: CTD Seabird 25

Supplied Description:

CTD measurements taken by a SBE25 (Seabird) CTD instrument package.

Instrument Type

Generic Name: Sea-Bird SBE 25 Sealogger CTD

Acronym: CTD SBE 25

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0040/

Generic Description:

The Sea-Bird SBE 25 SEALOGGER CTD is battery powered and is typically used to record data in memory, eliminating the need for a large vessel, electrical sea cable, and on-board computer. All SBE 25s can also operate in real-time, transmitting data via an opto-isolated RS-232 serial port. Temperature and conductivity are measured by the SBE 3F Temperature sensor and SBE 4 Conductivity sensor (same as those used on the premium SBE 9plus CTD). The SBE 25 also includes the SBE 5P (plastic) or 5T (titanium) Submersible Pump and TC Duct. The pump-controlled, TC-ducted flow configuration significantly reduces salinity spiking caused by ship heave, and in calm waters allows slower descent rates for improved resolution of water column features. Pressure is measured by the modular SBE 29 Temperature Compensated Strain-Gauge Pressure sensor (available in eight depth ranges to suit the operating depth requirement). The SBE 25's modular design makes it easy to configure in the field for a wide range of auxiliary sensors, including optional dissolved oxygen (SBE 43), pH (SBE 18 or SBE 27), fluorescence, transmissivity, PAR, and optical backscatter sensors. More information from Sea-Bird Electronics: http:www.seabird.com.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruiseid	cruise identification, i.e. en246 = Endeavor cruise 246		cruiseid
year_gmt	year, GMT		year
instrument	CTD instrument model/brand		instrument
station	preassigned station identifer		station
cast	consecutive CTD cast number within cruise		cast
lat_begin	latitude at start of cast, negative = South	decimal degrees	lat_start
lon_begin	longitude at start of cast, negative = West	decimal degrees	lon_start
lat_end	latitude at end of cast, negative = South	decimal degrees	lat_end
lon_end	longitude at end of cast, negative = West	decimal degrees	lon_end
month_gmt	month of year, GMT time, (1-12)		month_gmt
day_gmt	day of month, GMT time, (01-31)		day_gmt
time_start_gmt	time at start of cast, GMT	HHmm	time_begin
time_end_gmt	time at end of cast, GMT	HHmm	time_end
depth_w	depth of water	meters	depth_w
press	depth of sample reported as pressure	decibars	press
temp	temperature	degrees C	temp
sal	salinity. PSS		sal
sigma_0	sigma-theta, potential density	kg/m3	sigma_0
cond	conductivity		cond
O2C	oxygen sensor current	volts	no_bcodmo_term
O2T	oxygen sensor temperature	degrees C	no_bcodmo_term
trans_v	light transmission	volts	trans_v
par	photosynthetically available radiation	volts	PAR
flvolt	fluorometer voltage measurements	volts	flvolt
trans	Light transmission in percent.	percent	trans

Database

Contribute Data

Dataset: CTD_ji
Deployment: OC291

GLOBEC Georges Bank Long-Term Moored Array Component

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: CTD_jiDeployment: OC291

GLOBEC Georges Bank Long-Term Moored Array Component

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: CTD_ji
Deployment: OC291