Dataset: CTD_cg

Name: CTD data from R/V Endeavor and R/V Oceanus cruises EN307, EN330, EN331, OC332, and OC334 to the Gulf of Maine and Georges Bank in 1997-1999 (GB project)
Published: 2004-10-01
License: https://creativecommons.org/licenses/by/4.0/
Keywords: oceans

Cite This Dataset

Project:

U.S. GLOBEC Georges Bank (GB)

Principal Investigator:

Dr Charles H Greene (Cornell University, Cornell)

BCO-DMO Data Manager:

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

Version Date:

2004-10-01

Validated:

Yes

Current State:

Final no updates expected

Data URL:

https://www.bco-dmo.org/dataset/2300/data

CTD data from R/V Endeavor and R/V Oceanus cruises EN307, EN330, EN331, OC332, and OC334 to the Gulf of Maine and Georges Bank in 1997-1999 (GB project)

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2004-10-01	National Oceanographic Data Center (NODC)	0104391	2013-04-04

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

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.

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

More Information about this dataset

Funding Sources

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

Deployments

Deployment	Start Date	Platform	Investigator
EN307	1997-10-08	R/V Endeavor	Dr Charles H Greene (Chief Scientist)	data info
EN330	1999-10-16	R/V Endeavor	Dr Charles H Greene (Chief Scientist)	data info
EN331	1999-12-04	R/V Endeavor	Dr Charles H Greene (Chief Scientist)	data info
OC332	1998-10-19	R/V Oceanus	Dr Charles H Greene (Chief Scientist)	data info
OC334	1998-12-03	R/V Oceanus	Dr Charles H Greene (Chief Scientist)	data info

Instruments

CTD profiler

(more info)

Short Name: CTD

Community Standard Description

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 and permits scientists observe the physical properties in real time via a conducting cable connecting the CTD to a deck unit and computer on the 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 instrument designation is used when specific make and model are not known.

PI supplied instrument name: Conductivity, Temperature, Depth

Dataset-specific description

CTD measurements taken, CTD unit unidentified.

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

Geospatial Access

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Dataset: CTD_cg

CTD Hydrography

Endeavor 307, 330, 331 and Oceanus 332, 334