Dataset: CTD profiles 2009
Deployment: OC454-02

CTD cast temperature, salinity, oxygen, etc from OC454-02

Principal Investigator:

Virginia P. Edgcomb (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Cynthia L. Chandler (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Pickled Protists or Community Uniquely Adapted to Hypersalinity? (Pickled Protists)

Current State:

Preliminary and in progress

Version Date:

2011-01-03

Data URL:

https://www.bco-dmo.org/dataset-deployment/453450/data

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Description

11 CTD casts were done during the cruise to identify the depth of the brine layer and collect water samples using the Niskin bottles.

Casts were distributed between two brine basins, and the Comment field in the data indicates whether a CTD cast was in the vicinity of the Discovery or Urania brine basin. The cast comments recorded prior to acquisition are:

cast 3: intending to sample the interface. 3590 as published in Waller, and which coincides with our CTD data. Salinometer readings are more or less same as seawater, but this is misleading because the Na conc in the brine is 68 (VanderWielen), which is the reading that Kostas got with the salinometer for water we believe is brine (soapy, low or undetectable oxygen). Using the Fornari camera here.
cast 5: the coordinates for this site were different from Yakimov. We are at 35 13.51N and 21 28.24E
cast 6: GOING TO INT.
cast 7: Second CTD cast to interface. This time need to go a little deeper
cast 8: last sample was too deep so now targeting
cast 9: to interface
cast 11: joan's multicore 1 site "on bottom" coords

Methods & Sampling

Dataset acquisition description

11 CTD casts were done during the cruise. Data were recovered from the WHOI Data Library and Archives. CTD profile data were recovered from the Seabird *.cnv files processed during the cruise.

No information was contributed as to any quality assurance done during the cruise. CTD profile data files from 11 casts were processed during the cruise using the Seabird software utilities. All casts (except for 9) were pressure binned (binavg_* routines). The cast 9 data file processing stopped after the loopedit step; no binavg done.

Seabird CTD header from cast 11 .cnv file:

* Sea-Bird SBE 9 Data File:
* FileName = C:dataoc454-20011.hdr
* Software Version Seasave V 7.18d
* Temperature SN = 4303
* Conductivity SN = 2707
* Number of Bytes Per Scan = 40
* Number of Voltage Words = 5
* Number of Scans Averaged by the Deck Unit = 1
* System UpLoad Time = Aug 03 2009 22:29:34
* NMEA Latitude = 35 20.14 N
* NMEA Longitude = 021 40.17 E
* NMEA UTC (Time) = Aug 03 2009  22:29:33
* Store Lat/Lon Data = Append to Every Scan
** this is joan's multicore 1 site "on bottom" coords
# nquan = 22
# nvalues = 3917                        
# units = specified
# name 0 = prDM: Pressure, Digiquartz [db]
# name 1 = t090C: Temperature [ITS-90, deg C]
# name 2 = t190C: Temperature, 2 [ITS-90, deg C]
# name 3 = sal00: Salinity [PSU]
# name 4 = sal11: Salinity, 2 [PSU]
# name 5 = c0S/m: Conductivity [S/m]
# name 6 = c1S/m: Conductivity, 2 [S/m]
# name 7 = sbeox0V: Oxygen Voltage, SBE 43
# name 8 = sbeox0ML/L: Oxygen, SBE 43 [ml/l]
# name 9 = xmiss: Beam Transmission, Chelsea/Seatech/Wetlab CStar [%]
# name 10 = density00: Density [density, Kg/m^3]
# name 11 = flECO-AFL: Fluorescence, Wetlab ECO-AFL/FL [mg/m^3]
# name 12 = upoly0: Upoly 0, WetLabs Turbidity
# name 13 = altM: Altimeter [m]
# name 14 = sbeox1V: Oxygen Voltage, SBE 43, 2
# name 15 = sbeox1ML/L: Oxygen, SBE 43, 2 [ml/l]
# name 16 = sbeox0ML/L: Oxygen, SBE 43 [ml/l], WS = 2
# name 17 = sal00: Salinity [PSU]
# name 18 = sbeox1ML/L: Oxygen, SBE 43, 2 [ml/l], WS = 2
# name 19 = sal11: Salinity, 2 [PSU]
# name 20 = depSM: Depth [salt water, m], lat = 35.3357
# name 21 = flag: flag
# span 0 =      2.000,   3638.000       
# span 1 =    13.8108,    27.0088       
# span 2 =    13.8108,    27.0112       
# span 3 =    38.7345,    97.3056       
# span 4 =    38.7987,    97.2901       
# span 5 =   4.640047,  11.543013       
# span 6 =   4.645992,  11.574247       
# span 7 =     0.5036,     3.3284       
# span 8 =  -23.97469,    5.90225       
# span 9 =    -3.8414,    98.8069       
# span 10 =  1025.7462,  1089.5758      
# span 11 =    -0.0330,     1.0039      
# span 12 =  0.0494042,  2.0979324      
# span 13 =       5.97,      99.63      
# span 14 =     0.5409,     3.0223      
# span 15 =  -41.88372,    5.70259      
# span 16 =  -58.50867,    5.88089      
# span 17 =    38.7345,    97.3128      
# span 18 =  -46.32159,    5.69958      
# span 19 =    38.7987,    97.2938      
# span 20 =      1.985,   3580.853      
# span 21 = 0.0000e+00, 0.0000e+00      
# interval = decibars: 1                
# start_time = Aug 03 2009 22:29:34
# bad_flag = -9.990e-29
# sensor 0 = Frequency  0  temperature, primary, 4303, 2008-09-25
# sensor 1 = Frequency  1  conductivity, primary, 2707, 2008-09-24, cpcor = -9.5700e-08
# sensor 2 = Frequency  2  pressure, 69685, 12/18/2002
# sensor 3 = Frequency  3  temperature, secondary, 4312, 2008-09-23
# sensor 4 = Frequency  4  conductivity, secondary, 2768, 2008-09-25, cpcor = -9.5700e-08
# sensor 5 = Extrnl Volt  0  WET Labs, ECO_AFL
# sensor 6 = Extrnl Volt  1  userpoly 0, FLNTURTD-1013, 2008-04-18
# sensor 7 = Extrnl Volt  2  transmissometer, primary, CST-1117DR, 2008-04-30
# sensor 8 = Extrnl Volt  4  altimeter
# sensor 9 = Extrnl Volt  5  Oxygen, SBE, primary, 0794, 2009-03-13
# sensor 10 = Extrnl Volt  6  userpoly 1, Flashbird-5
# sensor 11 = Extrnl Volt  7  Oxygen, SBE, secondary, 0072, 2009-05-13
# sensor 12 = Extrnl Volt  9  surface irradiance (SPAR), degrees = 0.0
# datcnv_date = Aug 04 2009 00:03:54, 7.15
# datcnv_in = c:ctd_processingoc454-20011.hex c:ctd_processingoc454-20011.CON
# datcnv_skipover = 0
# wildedit_date = Aug 04 2009 00:04:07, 7.15
# wildedit_in = c:ctd_processingoc454-20011.cnv
# wildedit_pass1_nstd = 2.0
# wildedit_pass2_nstd = 20.0
# wildedit_pass2_mindelta = 1.000e+000
# wildedit_npoint = 100
# wildedit_vars = prDM t090C t190C sal00 sal11 c0S/m c1S/m sbeox0V sbeox0ML/L xmiss density00 flECO-AFL upoly0 altM sbeox1V sbeox1ML/L
# wildedit_excl_bad_scans = yes
# filter_date = Aug 04 2009 00:04:23, 7.15
# filter_in = c:ctd_processingoc454-20011.cnv
# filter_low_pass_tc_A = 0.030
# filter_low_pass_tc_B = 0.100
# filter_low_pass_A_vars = sal00 sal11 c0S/m c1S/m sbeox0V sbeox0ML/L xmiss density00 flECO-AFL upoly0 sbeox1V sbeox1ML/L
# filter_low_pass_B_vars = prDM
# alignctd_date = Aug 04 2009 00:04:53, 7.15
# alignctd_in = c:ctd_processingoc454-20011.cnv
# alignctd_adv = sbeox0V 4.000, sbeox0ML/L 4.000                                                                                                                                                                                     
# celltm_date = Aug 04 2009 00:05:09, 7.15
# celltm_in = c:ctd_processingoc454-20011.cnv
# celltm_alpha = 0.0300, 0.0300
# celltm_tau = 7.0000, 7.0000
# celltm_temp_sensor_use_for_cond = primary, secondary
# loopedit_date = Aug 04 2009 00:05:25, 7.15
# loopedit_in = c:ctd_processingoc454-20011.cnv
# loopedit_minVelocity = 0.100                                                                                            
# loopedit_surfaceSoak: do not remove                                                                                     
# loopedit_excl_bad_scans = yes
# Derive_date = Aug 04 2009 00:05:47, 7.15
# Derive_in = c:ctd_processingoc454-20011.cnv c:ctd_processingoc454-20011.CON
# derive_time_window_docdt = seconds: 2
# binavg_date = Aug 04 2009 00:06:08, 7.15
# binavg_in = c:ctd_processingoc454-20011.cnv
# binavg_bintype = decibars
# binavg_binsize = 1
# binavg_excl_bad_scans = yes
# binavg_skipover = 0
# binavg_surface_bin = no, min = 0.000, max = 0.000, value = 0.000
# file_type = ascii
*END*

Data Processing Description

Dataset Processing Description

No post-cruise processing was done and there are no plans to do any futher processing of these data.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0849578	NSF Division of Ocean Sciences

Instruments

CTD Sea-Bird SBE 911plus

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird SBE 911plus

Acronym: CTD SBE 911plus

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/

Generic Description:

The Sea-Bird SBE 911 plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911 plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 plus and SBE 11 plus is called a SBE 911 plus. The SBE 9 plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 plus and SBE 4). The SBE 9 plus CTD can be configured with up to eight 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 43 Dissolved Oxygen Sensor

Supplied Name: SBE 43 Dissolved Oxygen Sensor

Supplied Description:

Oxygen, SBE, primary, 0794, 2009-03-13

Instrument Type

Generic Name: Sea-Bird SBE 43 Dissolved Oxygen Sensor

Acronym: SBE-43 DO

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0036/

Generic Description:

The Sea-Bird SBE 43 dissolved oxygen sensor is a redesign of the Clark polarographic membrane type of dissolved oxygen sensors. more information from Sea-Bird Electronics

Transmissometer

Supplied Description:

primary, CST-1117DR, 2008-04-30

Instrument Type

Generic Name: Transmissometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/124/

Generic Description:

A transmissometer measures the beam attenuation coefficient of the lightsource over the instrument's path-length. This instrument designation is used when specific manufacturer, make and model are not known.

Wet Labs ECO-AFL/FL Fluorometer

Supplied Description:

Instrument Type

Generic Name: Wet Labs ECO-AFL/FL Fluorometer

Acronym: ECO AFL/FL

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0172/

Generic Description:

The Environmental Characterization Optics (ECO) series of single channel fluorometers delivers both high resolution and wide ranges across the entire line of parameters using 14 bit digital processing. The ECO series excels in biological monitoring and dye trace studies. The potted optics block results in long term stability of the instrument and the optional anti-biofouling technology delivers truly long term field measurements.
more information from Wet Labs

WetLabs FLNTU

Supplied Description:

FLNTURTD-1013, 2008-04-18

Instrument Type

Generic Name: WetLabs FLNTU

Acronym: FLNTU

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/113/

Generic Description:

The WetLabs ECO FLNTU is a dual-wavelength, single-angle sensor for simultaneously determining both chlorophyll fluorescence and turbidity. It detects light scattered by particles suspended in water, generating an output voltage proportional to turbidity or suspended solids. Scaling factors are used to convert the voltage readings to values representing chlorophyll concentration and turbidity expressed in Nephelometric Turbidity Units (NTUs).

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cast	CTD cast number	integer	cast
date	start date (UTC) of cast as YYYYMMDD	YYMMMDD	date
time	start time (UTC) of cast as HHMM	HHMM	time
lon	longitude (positive is East)	decimal degrees	lon
lat	latitude (positive is North)	decimal degrees	lat
Pmax	maximum pressure recorded during cast	decibars	Pmax
Comment	comment indicating station location	dimensionless	comment
press	water pressure from CTD Digiquartz sensor	decibars	press
temp	water temperature from primary T0 sensor (ITS-90)	degrees Celsius	temp
sal	salinity from CTD (PSU) (from primary T0 and C0 sensors)	dimensionless	sal
sigma_0	water potential density - 1000	kilograms/meter^3	sigma_0
temp_S	water temperature from secondary T1 sensor (ITS-90)	degrees Celsius	temp2
sal_S	salinity from CTD (PSU) (from secondary T1 and C1 sensors)	dimensionless	sal2
cond	conductivity from primary C0 sensor	Siemens/meter	cond
cond_S	conductivity from secondary C1 sensor	Siemens/meter	cond2
O2_ml_L	dissolved Oxygen from SBE 43	milliliters/liter	O2_ml_L
chl_a_fluor	fluorescence from Wetlab ECO-AFL/FL; rescaled units are numerically equivalent to chlorophyll-a concentrations	milligrams/meter^3	chl_a_fluor
turbid_v	turbidity from WetLabs sensor	volts	turbid_v
trans	transmissometer from primary CST-1117DR sensor	percent	trans
depth	water depth calculated from CTD pressure using starting latitude for each cast	meters	depth

Database

Contribute Data

Dataset: CTD profiles 2009
Deployment: OC454-02

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: CTD profiles 2009Deployment: OC454-02

Dataset acquisition description

Dataset Processing Description

Dataset: CTD profiles 2009
Deployment: OC454-02