Dataset: CTD_cg
Deployment: OC332

CTD data from R/V Endeavor and R/V Oceanus, Gulf of Maine, 1997-1999.

Principal Investigator:

Dr Charles H Greene (Cornell University, Cornell)

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/449327/data

Expand/Collapse All

Description

CTD Hydrography

Endeavor 307, 330, 331 and Oceanus 332, 334

click here for additional sampling information (SeaBird System output).

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

DMO Notes:
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.

* Temperatures are reported in ITS90 scale except for Endeavor cruise 307 which are in the ITS68 scale.

Chief Scientist:   Charles Greene 
                   Cornell University 

Contributor:       Heidi Sosik 
                   Woods Hole Oceanographic Institution


prepared by:  Dicky Allison, March 2003 
updated:  October 1, 2004; gfh

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:
# pr =  pressure [db]
# t090 =  temperature, pri, ITS-90 [deg C]
# c0S/m =  conductivity, primary [S/m]
# t190 =  temperature, sec, ITS-90 [deg C]
# c1S/m =  conductivity, secondary [S/m]
# flS =  fluorometer, sea tech
# xmiss =  transmissometer
# sal00 =  salinity, PSS-78 [PSU], T0, C0
# sal11 =  salinity, PSS-78 [PSU], T1, C1
# potemp068 =  potential temperature, pri, IPTS-68 [deg C]
# potemp090 =  potential temperature, pri, ITS-90 [deg C]
# depS =  depth, salt water [m]
# density00 =  density [kg/m^3], T0, C0
# sigma-ï¿½00 = density, sigma-theta [kg/m^3], T0, C0
# sigma-t00 =  density, sigma-t [kg/m^3], T0, C0
# sigma-100 =  density, sigma-1 [kg/m^3], T0, C0
# sigma-200 =  density, sigma-2 [kg/m^3], T0, C0
# sigma-400 =  density, sigma-4 [kg/m^3], T0, C0
# oxsatML/L =  oxygen saturation [ml/l]
# nbin =  number of scans per bin
# interval = decibars: 1                                
# 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, 10 Jul 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>
# pr = pressure [db]
# t090 = temperature, ITS-90 [deg C]
# c0mS/cm = conductivity [mS/cm]
# v1 = voltage, number 1 [V] (fluorometer)
# v2 = voltage, number 2 [V] (transmissometer)
# v5 = voltage, number 5 [V] (seapoint turbidity meter)
# par = irradiance (PAR)
# spar = surface irradiance (SPAR)
# sal00 = salinity, PSS-78 [PSU]
# density00 = density [kg/m^3]
# depS = depth, salt water [m]
# flag = 0.000e+00
# nbin = number of scans per bin
# interval = decibars: 1
# bad_flag = -9.990e-29
# sensor 0 = Frequency 0 temperature, 2265, 24-Apr-98
# sensor 1 = Frequency 1 conductivity, 1859, 24-Apr-98s, cpcor = -9.5700e-08
# sensor 2 = Frequency 2 pressure, 63505, 10-11-1996
# sensor 3 = Extrnl Volt 1 fluorometer, sea tech, 75S
# sensor 4 = Extrnl Volt 2 transmissometer, 667
# sensor 5 = Extrnl Volt 4 altimeter
# sensor 6 = Extrnl Volt 5 seapoint turbidity meter, 1391
# sensor 7 = Extrnl Volt 6 irradiance (PAR), 4550, 18sept98
# sensor 8 = Extrnl Volt 9 surface irradiance (SPAR), degrees = 0.0
</PRE>

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 - 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	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 time	GMT	month_gmt
day_gmt	day of month, gmt time	GMT	day_gmt
time_gmt	time in gmt, reported as hhmm.mm	GMT	time_gmt
press	depth of sample, reported as pressure	decibars	press
cond	conductivity	siemens/meter	cond
cond_mS	conductivity	millisiemens/centimeter	cond_mS
temp	temperature	deg. C*	temp
potemp	potential temperature	deg. C*	potemp
trans	light transmission	percent	trans
beam_c	beam attenuation coefficient	1/m	beam_c
par_v	photosynthetically available radiation, asvolts	volts	par_v
par_s_v	surface photosynthetically available radiation, as volts	volts	par_s_v
flvolt	fluorescence, as volts	volts	flvolt
turbid_v	turbidity	volts	turbid_v
density	density	kg/m<sup>3</sup>	density
depth	depth of sample	meters	depth
sigma_0	potential density at surface (sigma theta)	kg/m<sup>3</sup>-1000	sigma_0
sigma_t	sigma-t	kg/m<sup>3</sup>-1000	sigma_t
O2_sat	oxygen saturation	milliliters/liter	O2sat
sal	salinity	PSS-78	sal

Database

Contribute Data

Dataset: CTD_cg
Deployment: OC332

CTD Hydrography

Endeavor 307, 330, 331 and Oceanus 332, 334

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Deployment-specific processing description

Database

Contribute Data

Dataset: CTD_cgDeployment: OC332

CTD Hydrography

Endeavor 307, 330, 331 and Oceanus 332, 334

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Deployment-specific processing description

Dataset: CTD_cg
Deployment: OC332