Dataset: CTD_TN277
Deployment: TN277

Processed CTD data from POWOW1 cruise (TN277).

Principal Investigator:

Zackary I. Johnson (Duke University)

Co-Principal Investigator:

Erik Zinser (University of Tennessee Knoxville, UTK)

Contact:

Zackary I. Johnson (Duke University)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Seasonal and decadal changes in temperature drive Prochlorococcus ecotype distribution patterns (POWOW)

Current State:

Final no updates expected

Version:

09 Oct 2012

Deployment Synonyms:

POWOW1

Version Date:

2013-03-25

Data URL:

https://www.bco-dmo.org/dataset-deployment/455473/data

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Description

CTD data from 13 casts/stations during cruise TN277 during March 2012. Data were processed with Sea-Bird SBE Data Processing Version 7.21F using windows and filters as described below.

Methods & Sampling

Dataset acquisition description

Header information from Sea-Bird SBE 9 Data Files:
Software Version Seasave V 7.21b
Temperature SN = 2195; Conductivity SN = 2881
Number of Bytes Per Scan = 41; Number of Voltage Words = 4
Number of Scans Averaged by the Deck Unit = 1
SBE 11plus V 5.1g
number of scans to average = 1; pressure baud rate = 9600; NMEA baud rate = 4800
units = specified
name 0 = scan: Scan Count
name 1 = prDM: Pressure, Digiquartz [db]
name 2 = t068C: Temperature [ITS-68, deg C]
name 3 = c0S/m: Conductivity [S/m]
name 4 = sbeox0Mm/Kg: Oxygen, SBE 43 [umol/Kg]
name 5 = flECO-AFL: Fluorescence, WET Labs ECO-AFL/FL [mg/m^3]
name 6 = bat: Beam Attenuation, Chelsea/Seatech [1/m]
name 7 = nbf: Bottles Fired
name 8 = sal00: Salinity, Practical [PSU]
name 9 = sigma-é00: Density [sigma-theta, Kg/m^3]
name 10 = potemp090C: Potential Temperature [ITS-90, deg C]
name 11 = scan: Scan Count
name 12 = nbin: number of scans per bin
name 13 = flag: flag
interval = decibars: 1; bad_flag = -9.990e-29; Sensors count=13

Sensor Channel 1: Frequency 0, Temperature; Sensor ID = 55; SerialNumber: 2195
Calibration Date: 23-Feb-12
UseG_J: 1
A: 0.00000000e+000; B: 0.00000000e+000; C: 0.00000000e+000; D: 0.00000000e+000; F0_Old: 0.000
G: 4.34901434e-003
H: 6.51224577e-004
I: 2.39780771e-005
J: 2.22858686e-006
F0: 1000.000
Slope: 1.00000000; Offset: 0.0000

Sensor Channel 2: Frequency 1, Conductivity; Sensor ID = 3; SerialNumber: 2881
Calibration Date: 12-Oct-11
UseG_J: 1; Cell const and series R are applicable only for wide range sensors.
SeriesR: 0.0000; CellConst: 2000.0000
ConductivityType: 0
Coefficients equation = 0
A: 0.00000000e+000; B: 0.00000000e+000; C: 0.00000000e+000; D: 0.00000000e+000; M: 0.0
CPcor: -9.57000000e-008
Coefficients equation = 1
G: -1.03710663e+001
H: 1.42479088e+000
I: 1.06729270e-003
J: 6.08592340e-006
CPcor: -9.57000000e-008; CTcor: 3.2500e-006
WBOTC not applicable unless ConductivityType = 1.
WBOTC: 0.00000000e+000
Slope: 1.00000000; Offset: 0.00000

Sensor Channel 3: Frequency 2, Pressure, Digiquartz with TC; Sensor ID = 45; SerialNumber: 94112-0216
Calibration Date: 07-may-2008
C1: -4.562074e+004; C2: 1.820199e-001; C3: 1.580430e-002
D1: 3.615300e-002; D2: 0.000000e+000
T1: 3.024088e+001; T2: -3.472576e-004; T3: 4.427560e-006; T4: 3.763240e-009
Slope: 0.99992000; Offset: -2.70470
T5: 0.000000e+000
AD590M: 1.176000e-002; AD590B: -8.544400e+000

Sensor Channel 4: Frequency 3, Temperature, 2; Sensor ID = 55; SerialNumber: 2060
Calibration Date: 23-Feb-12
UseG_J: 1
A: 0.00000000e+000; B: 0.00000000e+000; C: 0.00000000e+000; D: 0.00000000e+000; F0_Old: 0.000
G: 4.13897250e-003
H: 6.25024768e-004
I: 2.05347545e-005
J: 2.08075011e-006
F0: 1000.000
Slope: 1.00000000; Offset: 0.0000

Sensor Channel 5: Frequency 4, Conductivity, 2; Sensor ID = 3; SerialNumber: 1824
Calibration Date: 30-Nov-11
UseG_J: 1; Cell const and series R are applicable only for wide range sensors.
SeriesR: 0.0000; CellConst: 2000.0000
ConductivityType: 0
Coefficients equation = 0
A: 0.00000000e+000; B: 0.00000000e+000; C: 0.00000000e+000; D: 0.00000000e+000; M: 0.0
CPcor: -9.57000000e-008
Coefficients equation = 1
G: -4.15188213e+000
H: 5.57831770e-001
I: -7.57079565e-004
J: 6.96537524e-005
CPcor: -9.57000000e-008; CTcor: 3.2500e-006
WBOTC not applicable unless ConductivityType = 1.
WBOTC: 0.00000000e+000
Slope: 1.00000000; Offset: 0.00000

Sensor Channel 6: A/D voltage 0, Oxygen, SBE 43; Sensor ID = 38; SerialNumber: 0518
Calibration Date: 13-Dec-11
Use2007Equation: 1
CalibrationCoefficients equation = 0
Coefficients for Owens-Millard equation.
Boc: 0.0000; Soc: 0.0000e+000
offset: 0.0000
Pcor: 0.00e+000; Tcor: 0.0000; Tau: 0.0
CalibrationCoefficients equation = 1
Coefficients for Sea-Bird equation - SBE calibration in 2007 and later.
Soc: 4.9360e-001
offset: -0.5268
A: -3.0579e-003
B: 1.0450e-004
C: -1.7256e-006
D0: 2.5826e+000; D1: 1.92634e-004; D2:-4.64803e-002
E: 3.6000e-002
Tau20: 2.0100
H1: -3.3000e-002; H2: 5.0000e+003; H3: 1.4500e+003

Sensor Channel 7: A/D voltage 1, Free

Sensor Channel 8: A/D voltage 2, Oxygen, SBE 43, 2; Sensor ID = 38; SerialNumber: 0023
Calibration Date: 10-Feb-12
Use2007Equation: 1
CalibrationCoefficients equation = 0
Coefficients for Owens-Millard equation.
Boc: 0.0000; Soc: 0.0000e+000
offset: 0.0000
Pcor: 0.00e+000; Tcor: 0.0000; Tau: 0.0
CalibrationCoefficients equation = 1
Coefficients for Sea-Bird equation - SBE calibration in 2007 and later.
Soc: 4.3418e-001
offset: -0.5182
A: -2.5112e-003
B: 1.4798e-004
C: -2.6123e-006
D0: 2.5826e+000; D1: 1.92634e-004; D2: -4.64803e-002
E: 3.6000e-002
Tau20: 1.1700
H1: -3.3000e-002; H2: 5.0000e+003; H3: 1.4500e+003

Sensor Channel 9: A/D voltage 3, Free
Sensor Channel 10: A/D voltage 4, Free
Sensor Channel 11: A/D voltage 5, Free

Sensor Channel 12: A/D voltage 6, Fluorometer, WET Labs ECO-AFL/FL; Sensor ID = 20; SerialNumber: FLRTD-063
Calibration Date: April-20-2011
ScaleFactor: 2.50000000e+001
Vblank: 0.0260

Sensor Channel 13: A/D voltage 7, Transmissometer, Chelsea/Seatech; Sensor ID = 59; SerialNumber: CST-402DR
Calibration Date: March-11-2011
M: 21.8670
B: -1.2280
PathLength: 0.250
-----------------------

Data Processing Description

Dataset Processing Description

BCO-DMO replaced values of '-9.990e-29' with 'nd' to indicate 'no data'. Parameter names were modified to conform with BCO-DMO convention. month_utc, day_utc, year, time_start, lat_start, and lon_start were taken from the CTD headers.
25 March 2013: BCO-DMO added station number (taken from cast sheets and cruise report).

------------------------
Processing description from Sea-Bird SBE 9 Data Files:
datcnv_skipover = 0
datcnv_ox_hysteresis_correction = yes
datcnv_ox_tau_correction = yes
wildedit_pass1_nstd = 2.0
wildedit_pass2_nstd = 20.0
wildedit_pass2_mindelta = 0.000e+000
wildedit_npoint = 100
wildedit_vars = prDM t068C c0S/m sbeox0Mm/Kg flECO-AFL bat sal00 sigma-é00 potemp090C
wildedit_excl_bad_scans = yes
wfilter_excl_bad_scans = yes
wfilter_action prDM = gaussian, 5, 1, 0
wfilter_action t068C = median, 21
wfilter_action c0S/m = median, 21
wfilter_action sbeox0Mm/Kg = gaussian, 5, 1, 0
wfilter_action flECO-AFL = gaussian, 5, 1, 0
wfilter_action bat = gaussian, 5, 1, 0
wfilter_action sal00 = gaussian, 5, 1, 0
wfilter_action sigma-é00 = gaussian, 5, 1, 0
wfilter_action potemp090C = median, 21
loopedit_minVelocity = 0.250
loopedit_surfaceSoak: minDepth = 0.0, maxDepth = 20, useDeckPress = 1
loopedit_excl_bad_scans = yes
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
----------------------------------

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1030518	NSF Division of Ocean Sciences
OCE-1031064	NSF Division of Ocean Sciences

Instruments

CTD Sea-Bird 9

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird 9

Acronym: CTD SBE 9

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

Generic Description:

The Sea-Bird SBE 9 is a type of CTD instrument package. The SBE 9 is the Underwater Unit and is most often combined with the SBE 11 Deck Unit (for real-time readout using conductive wire) when deployed from a research 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, fluorometer, altimeter, etc.). Note that in most cases, it is more accurate to specify SBE 911 than SBE 9 since it is likely a SBE 11 deck unit was used. more information from Sea-Bird Electronics

Sea-Bird SBE 43 Dissolved Oxygen Sensor

Supplied Name: SBE-43 DO

Supplied Description:

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:

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 Name: ECO AFL/FL

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

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cast	CTD cast number.	unitless	cast
month_utc	2-digit month of year, UTC.	mm (01 to 12)	month_utc
day_utc	2-digit day of month, UTC.	dd (01 to 31)	day_utc
year	4-digit year. in YYYY format	unitless	year
time_start	Time (UTC) at start of CTD cast, 24-hour clock.	HHMM.mm	time_start
lat_start	Latitude at start of CTD cast. Positive = North.	decimal degrees	lat_start
lon_start	Longitude at start of CTD cast. Positive = East.	decimal degrees	lon_start
press	Pressure, Digiquartz.	decibars	press
temp	Temperature, ITS-68, in degrees Celsius.	degrees C	temp
cond	Conductivity, in Siemens per meter.	S/m	cond
O2_umol_kg	Oxygen measured by SBE 43 sensor in micromoles per kilogram.	umol/kg	O2_umol_kg
fluor	Fluorescence measured by WET Labs ECO-AFL/FL in milligrams per cubic meter.	mg/m^3	fluor
beam_c	Beam attenuation measured by the Chelsea/Seatech transmissometer.	1/m	beam_c
sal	Salinity in practical salinity units.	PSU	sal
sigma_0	Sigma theta density in kilograms per cubic meter.	kg/m^3	sigma_0
potemp	Potential temperature, ITS-90, in degrees Celsius.	degrees C	potemp
nbin	Number of scans per bin.	unitless	nbin
ISO_DateTime_UTC	Date/Time (UTC) ISO8601 formatted. T indicates start of time string; Z indicates UTC.	YYYY-mm-ddTHH:MM:SS.ssZ	ISO_DateTime_UTC
station	Station number.	unitless	station

Database

Contribute Data

Dataset: CTD_TN277
Deployment: TN277

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: CTD_TN277Deployment: TN277

Dataset acquisition description

Dataset Processing Description

Dataset: CTD_TN277
Deployment: TN277