Dataset: CTD_dg
Deployment: EN321

CTD data from EN321 and EN325, Georges Bank, 1999.

Principal Investigator:

Dian J. Gifford (University of Rhode Island, URI-GSO)

BCO-DMO Data Manager:

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

Project:

U.S. GLOBEC Georges Bank (GB)

Data URL:

https://www.bco-dmo.org/dataset-deployment/449329/data

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Description

CTD Hydrography, Endeavor 321 and 325

Click here for additional sampling information (SeaBird system output).

Questions regarding these data should be directed to the US GLOBEC Data Management Office.

DMO Note:
The data reported here are from the primary CTD sensors. However, this data set also contains conductivity, temperature and related computed parameters from secondary sensors. If these data are of interest, please contact the Data Management Office at the above link.

Chief Scientist:  Dian Gifford  
                  University of Rhode Island 
                  Graduate School of Oceanography
                  
prepared by:  Dicky Allison, March 2003
updated:  gfh, 4 October 2004

Methods & Sampling

Dataset acquisition description

The data reported here are from the primary CTD sensors. However, this data set also contains conductivity, temperature and related computed parameters from secondary sensors.

Deployment-specific acquisition description

The data reported here are from the primary CTD sensors. However, this data set also contains conductivity, temperature and related computed parameters from secondary sensors.

Data Processing Description

Dataset Processing Description

Header Details:
# nquan = 14
# nvalues = 75
# units = metric
# pr = pressure [db]
# c0S/m = conductivity, primary [S/m]
# c1S/m = conductivity, secondary [S/m]
# t090 = temperature, pri, ITS-90 [deg C]
# t190 = temperature, sec, ITS-90 [deg C]
# xmiss = transmissometer
# flS = fluorometer, sea tech
# oxML/L = oxygen [ml/l]
# par = irradiance (PAR)
# nbf = number of bottles fired
# sal00 = salinity, PSS-78 [PSU], T0, C0
# sal11 = salinity, PSS-78 [PSU], T1, C1
# sigma-t00 = density, sigma-t [kg/m^3], T0, C0
# nbin = number of scans per bin
# interval = decibars = 1                                
# start_time = Mar 31 1999 13:48:50
# bad_flag = -9.990e-29
# sensor 0 = Frequency  0  temperature, primary, 2107, 03 FEB-99
# sensor 1 = Frequency  1  conductivity, primary, 1745, 05-FEB-99s, cpcor = -9.5700e-08
# sensor 2 = Frequency  2  pressure, 64853, 08-21-96
# sensor 3 = Frequency  3  temperature, secondary, 2034, 03-FEB-99s
# sensor 4 = Frequency  4  conductivity, secondary, 1749, 03-FEB-99s, cpcor = -9.5700e-08
# sensor 5 = Extrnl Volt  0  transmissometer, 243D, 16 FEB 1999
# sensor 6 = Extrnl Volt  1  fluorometer, sea tech, 30s, july 1987
# sensor 7 = Extrnl Volt  2  oxygen, current, 130454, 18 AUG 1999
# sensor 8 = Extrnl Volt  3  oxygen, temperature, 130454, 18 AUG 1999
# sensor 9 = Extrnl Volt  4  irradiance (PAR), 4479, AUG 15, 1996
# sensor 10 = Extrnl Volt  9  surface irradiance (SPAR), degrees = 0.0

Deployment-specific processing description

<pre>
<b>Header Details:</b>
# nquan = 14
# nvalues = 75
# units = metric
# pr = pressure [db]
# c0S/m = conductivity, primary [S/m]
# c1S/m = conductivity, secondary [S/m]
# t090 = temperature, pri, ITS-90 [deg C]
# t190 = temperature, sec, ITS-90 [deg C]
# xmiss = transmissometer
# flS = fluorometer, sea tech
# oxML/L = oxygen [ml/l]
# par = irradiance (PAR)
# nbf = number of bottles fired
# sal00 = salinity, PSS-78 [PSU], T0, C0
# sal11 = salinity, PSS-78 [PSU], T1, C1
# sigma-t00 = density, sigma-t [kg/m^3], T0, C0
# nbin = number of scans per bin
# interval = decibars = 1
# start_time = Mar 31 1999 13:48:50
# bad_flag = -9.990e-29
# sensor 0 = Frequency 0 temperature, primary, 2107, 03 FEB-99
# sensor 1 = Frequency 1 conductivity, primary, 1745, 05-FEB-99s, cpcor = -9.5700e-08
# sensor 2 = Frequency 2 pressure, 64853, 08-21-96
# sensor 3 = Frequency 3 temperature, secondary, 2034, 03-FEB-99s
# sensor 4 = Frequency 4 conductivity, secondary, 1749, 03-FEB-99s, cpcor = -9.5700e-08
# sensor 5 = Extrnl Volt 0 transmissometer, 243D, 16 FEB 1999
# sensor 6 = Extrnl Volt 1 fluorometer, sea tech, 30s, july 1987
# sensor 7 = Extrnl Volt 2 oxygen, current, 130454, 18 AUG 1999
# sensor 8 = Extrnl Volt 3 oxygen, temperature, 130454, 18 AUG 1999
# sensor 9 = Extrnl Volt 4 irradiance (PAR), 4479, AUG 15, 1996
# sensor 10 = Extrnl Volt 9 surface irradiance (SPAR), degrees = 0.0
</pre>

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-9806375	NSF Division of Ocean Sciences
unknown GB NOAA	National Oceanic and Atmospheric Administration

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.

CTD Sea-Bird

Supplied Name: SeabirdCTD

Supplied Description:

Sea Bird CTD, no specific unit identified. See also other SeaBird instruments listed under CTD.

Instrument Type

Generic Name: CTD Sea-Bird

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

Generic Description:

Conductivity, Temperature, Depth (CTD) sensor package from SeaBird Electronics, no specific unit identified. This instrument designation is used when specific make and model are not known. See also other SeaBird instruments listed under CTD. More information from Sea-Bird Electronics.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruiseid	Originator's cruise identification		cruiseid
year	4-digit year (i.e. 1995)		year
cast	CTD cast number		cast
lat	latitude, negative = south	decimal degrees	lat
lon	longitude, negative = west	decimal degrees	lon
month_gmt	month of year	GMT	month_gmt
day_gmt	day of month	GMT	day_gmt
time_gmt	time in gmt, reported as hhmm.mm	GMT	time_gmt
press	depth of s ample, reported as pressure	decibars	press
cond	conductivity	seimens/meter	cond
temp	temperature	deg. C, ITS90	temp
trans	light transmission	percent	trans
par_v	photosynthetically available radiation	volts	par_v
flvolt	fluorescence	volts	flvolt
sal	salinity	PSS-78	sal
sigma_t	sigma-t	kg/m<sup>3</sup>-1000	sigma_t
o2	dissolved oxygen	milliliters/liter	O2
nbin	number of data cycles per press/bin average		nbin

Database

Contribute Data

Dataset: CTD_dg
Deployment: EN321

CTD Hydrography, Endeavor 321 and 325

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Deployment-specific processing description

Database

Contribute Data

Dataset: CTD_dgDeployment: EN321

CTD Hydrography, Endeavor 321 and 325

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Deployment-specific processing description

Dataset: CTD_dg
Deployment: EN321