Dataset: CTD - Profiles
Deployment: W0407A

CTD Profile Data

Principal Investigator:

Barbara M. Hickey (University of Washington, UW)

Contact:

Nancy Kachel (University of Washington, UW)

BCO-DMO Data Manager:

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI)

Project:

River Influences on Shelf Ecosystems (RISE)

Current State:

Final no updates expected

Version:

23 August 2010

Deployment Synonyms:

RISE04W1, RISE-1, RISE1W, WE0407, we0407

Coordinated Deployments:

RISE2004

Version Date:

2010-08-23

Data URL:

https://www.bco-dmo.org/dataset-deployment/452886/data

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Description

Final processed CTD data for the Wecoma cruises associated with the RISE Project.

NODC_EDDF_Form_RISE04W1
NODC_EDDF_Form_RISE05W2
NODC_EDDF_Form_RISE05W3
NODC_EDDF_Form_RISE06W4

Methods & Sampling

Dataset acquisition description

The data were collected using the Wecoma's SBE911+ system with dual Temperature and Conductivity
sensors, a SeaTech fluorometer sensor, a Biospherical Instruments/LICOR PAR (Irradiance) sensor,
a Chelsea/Seatech/Wetlab CStar Transmissometer, and a Sea Bird SBE043 dissolved oxygen sensor.

Deployment-specific acquisition description

Link to NODC Data Form 24-13 for Wecoma cruise number W0407A CTD Data Submission

File: we0407_ctd_conrept.txt

Date: 01/12/2009
Instrument configuration file: E:RISE_confilesw0407ctd026.CON
Configuration report for SBE 911plus/917plus CTD
------------------------------------------------
Frequency channels suppressed : 0
Voltage words suppressed      : 0
Computer interface            : IEEE-488 (GPIB)
Scans to average              : 1
Surface PAR voltage added     : No
NMEA position data added      : Yes
Scan time added               : No

1) Frequency 0, Temperature
   Serial number : 2327
   Calibrated on : 29-Aug-03
   G             : 4.35194563e-003
   H             : 6.42961546e-004
   I             : 2.33581860e-005
   J             : 2.26867454e-006
   F0            : 1000.000
   Slope         : 1.00000000
   Offset        : 0.0000

2) Frequency 1, Conductivity
   Serial number : 1896
   Calibrated on : 29-Aug-03
   G             : -4.10066585e+000
   H             : 5.24256945e-001
   I             : -1.31072264e-003
   J             : 9.66826034e-005
   CTcor         : 3.2500e-006
   CPcor         : -9.57000000e-008
   Slope         : 1.00000000
   Offset        : 0.00000

3) Frequency 2, Pressure, Digiquartz with TC
   Serial number : 9P6012-0256
   Calibrated on : 25-Oct-03
   C1            : -4.705724e+004
   C2            : -4.431410e-002
   C3            : 8.991870e-003
   D1            : 4.427900e-002
   D2            : 0.000000e+000
   T1            : 3.014264e+001
   T2            : -2.990150e-004
   T3            : 3.699150e-006
   T4            : 5.702540e-009
   T5            : 0.000000e+000
   Slope         : 0.99990000
   Offset        : -1.61590
   AD590M        : 1.140000e-002
   AD590B        : 0.000000e+000

4) Frequency 3, Temperature, 2
   Serial number : 2329
   Calibrated on : 29-Aug-03
   G             : 4.34007498e-003
   H             : 6.41621142e-004
   I             : 2.33745142e-005
   J             : 2.27955379e-006
   F0            : 1000.000
   Slope         : 1.00000000
   Offset        : 0.0000

5) Frequency 4, Conductivity, 2
   Serial number : 1898
   Calibrated on : 29-Aug-03
   G             : -1.05910191e+001
   H             : 1.51842313e+000
   I             : 2.55231578e-005
   J             : 1.05602711e-004
   CTcor         : 3.2500e-006
   CPcor         : -9.57000000e-008
   Slope         : 1.00000000
   Offset        : 0.00000

6) A/D voltage 0, Fluorometer, Seatech/Wetlabs FLF
   Serial number : 101S
   Calibrated on : Mar 04 Menzies
   Scale factor  : 2.108000e+001
   Offset        : -0.386

7) A/D voltage 1, Transmissometer, Chelsea/Seatech/Wetlab CStar
   Serial number : CTS-590DR
   Calibrated on : 05/01/02
   M             : 21.3440
   B             : -1.1950
   Path length   : 0.250

8) A/D voltage 2, Oxygen, SBE 43
   Serial number : 0387
   Calibrated on : 04/12/03
   Equation      : Owens-Millard
   Coefficients for Owens-Millard: 
   Soc           : 5.0730e-001
   Boc           : 0.0000
   Offset        : -0.4917
   Tcor          : -0.0005
   Pcor          : 1.35e-004
   Tau           : 0.0
   Coefficients for Murphy-Larson: 
   Soc           : 0.00000e+000
   Offset        : 0.00000e+000
   A             : 0.00000e+000
   B             : 0.00000e+000
   C             : 0.00000e+000
   E             : 0.00000e+000
   Tau           : 0.00000e+000

9) A/D voltage 3, Free

10) A/D voltage 4, Altimeter
    Serial number : Datasonics
    Calibrated on : 
    Scale factor  : 15.000
    Offset        : 0.000

11) A/D voltage 5, Free

12) A/D voltage 6, PAR/Irradiance, Biospherical/Licor
    Serial number        : 4246
    Calibrated on        : 12 Oct 2004
    M                    : 1.00000000
    B                    : 0.00000000
    Calibration constant : 9615384600.00000000
    Multiplier           : 1.00000000
    Offset               : 0.00000000

13) A/D voltage 7, Fluorometer, Wetlab Wetstar
    Serial number : wscd861p
    Calibrated on : 
    Vblank        : 0.000
    Scale factor  : 1.000

Data Processing Description

Dataset Processing Description

The data were initially processed using SeaBird Electronics' processing with SeaBird's standard, recommended parameters, following post-processing procedures developed at NOAA's Pacific Marine Environmental Laboratory in the Eco-FOCI (Fisheries and Oceanography coordinated Investigations). Each cast was visually inspected for reasonableness and for spikes. The criterion used for rejection of a data point is that for 1-m bin data, sigma-t inversions > 0.02 are unacceptable. Temperature or conductivity values causing such inversions are removed and the result data gaps are linearly interpolated. On most casts, data were extrapolated to the surface from the first data point at 2-3m depth. Missing cast numbers are for casts taken solely to collect water for deck experiments.

Water samples, taken approximately every third station, were analyzed for salinity using an autosal aboard the Wecoma. The results were compared to data measured by the CTD sensor to determine the calibration correction for the salinity values. The resulting corrections were applied to all the profile data. After the salinity calibration was applied, potential temperature, densities expressed as sigma-t and sigma-theta, and dynamic heights were calculated.

BCO-DMO Processing/Edits
- Original ".txt" file imported into spreadsheet
- RISE master cruise id added to dataset for compatibility with other RISE datasets
- Supplied cruise parameter retained as CruiseId_CTD
- Additional parameters added for overall standardization between RISE CTD datasets
- These parameters have "nd" (no data) entered for values
- Parameter names modified to conform to BCO-DMO convention
- Some renamed to BCO-DMO standard (date, time, lat, lon)
- Spaces removed or replaced with underscores
- Duplicate parameter names individualized
- Parameter units removed from names
- Single Date/Time parameter split into two parameters (date and time)
- date reformatted to YYYYMMDD
- time reformatted to HHMMSS
- Longitude converted signed for West longitude (negative) by subtracting 360.0 from supplied value
- Data values padded with decimal places as appropriate
- Error values changed to BCO-DMO standard of "nd"
- "9999" changed to "nd"
- "-1.00E+10" changed to "nd"

Deployment-specific processing description

<a href="http://bcodata.whoi.edu/RISE/NODCForms/NODC_DataDocForm_RISE1Wb.pdf">Link to NODC Data Form 24-13 for Wecoma cruise number W0407A CTD Data Submission</a><br><br>

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0239089	NSF Division of Ocean Sciences

Instruments

CTD Sea-Bird 911

Supplied Name: CTD Seabird 911

Supplied Description:

SeaBird Electronics SBE911plus with dual temperature and conductivity sensors

Instrument Type

Generic Name: CTD Sea-Bird 911

Acronym: CTD SBE 911

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0035/

Generic Description:

The Sea-Bird SBE 911 is a type of CTD instrument package. The SBE 911 includes the SBE 9 Underwater Unit and the SBE 11 Deck Unit (for real-time readout using conductive wire) for deployment from a 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, fluorescence, light (PAR), light transmission, etc.). More information from Sea-Bird Electronics.

LI-COR Biospherical PAR Sensor

Supplied Description:

Biospherical LI-COR Instruments 4-pi (spherical) light intensity sensor (PAR)

Instrument Type

Generic Name: LI-COR Biospherical PAR Sensor

Acronym: LI-COR Biospherical PAR

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0074/

Generic Description:

The LI-COR Biospherical PAR Sensor is used to measure Photosynthetically Available Radiation (PAR) in the water column. This instrument designation is used when specific make and model are not known.

Sea Tech Fluorometer

Supplied Description:

Sea Tech/Wetlabs FLF fluorometer (chlorophyll)

Instrument Type

Generic Name: Sea Tech Fluorometer

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

Generic Description:

The Sea Tech chlorophyll-a fluorometer has internally selectable settings to adjust for different ranges of chlorophyll concentration, and is designed to measure chlorophyll-a fluorescence in situ. The instrument is stable with time and temperature and uses specially selected optical filters enabling accurate measurements of chlorophyll a. It can be deployed in moored or profiling mode. This instrument designation is used when specific make and model are not known. The Sea Tech Fluorometer was manufactured by Sea Tech, Inc. (Corvalis, OR, USA).

Sea-Bird SBE 43 Dissolved Oxygen Sensor

Supplied Name: CTD Seabird SBE 43

Supplied Description:

SBE43 oxygen sensor (Dissolved Oxygen)

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

WET Labs {Sea-Bird WETLabs} C-Star transmissometer

Supplied Name: Wet Labs CSTAR Transmissometer

Supplied Description:

Instrument Type

Generic Name: WET Labs {Sea-Bird WETLabs} C-Star transmissometer

Acronym: WL CSTAR Trans

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0160/

Generic Description:

The C-Star transmissometer has a novel monolithic housing with a highly intgrated opto-electronic design to provide a low cost, compact solution for underwater measurements of beam transmittance. The C-Star is capable of free space measurements or flow-through sampling when used with a pump and optical flow tubes. The sensor can be used in profiling, moored, or underway applications. Available with a 6000 m depth rating.

More information on Sea-Bird website: https://www.seabird.com/c-star-transmissometer/product?id=60762467717

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise	RISE Project Cruise Id	text	cruise_id
CruiseID_CTD	RISE CTD Data Specific Cruise Id	text	cruise_id
station	Cast	integer	station
type	Station Type	text	station_desc
date	Date (GMT)	YYYYMMDD	date
time	Time (GMT)	HHMMSS	time
lon	longitude (West is negative)	Decimal degrees	lon
lat	latitude (South is negative)	Decimal degrees	lat
depth_bot	Bottom Depth	meters	depth_bottom
PRESSURE	Pressure	decibars	press
TEMPERATURE	Temperature (Primary)	degrees celsius	temp
TEMPERATURE2	Secondary Temperature	degrees celsius	temp
fluorometer_raw	rFv = raw Fluorometer volts	volts	fluor
Chlorophyll_A	Chlorophyll-A = Sea Tech/Wetlabs FLF Fluorometer measuremen	ugrams/l	chl_a
Transmissometry	Transmission (light) Percent per meter	percentage	trans
OXYGEN_ml	O= Dissolved Oxygen concentration from SeaBird SBE43 oxygen sensor; uncorrected by sampling.	ml/l	O2
OXYGEN_umol	O= Dissolved Oxygen concentration from SeaBird SBE43 oxygen sensor; uncorrected by sampling.	umol/kg	O2
PAR_v	PAR; Photosynthetically Active Radiation (a measure of light intensity) volts.	volts	par_v
PAR	PAR = Irradiance; Photosynthetically Activated Radiation (a measure of light intensity)	uEin m-2 s-1	PAR
SALINITY1	Salinity (Primary) (corrected)	PSU	sal
SALINITY2	Secondary Salinity (corrected)	PSU	sal
TEMP_POTENTIAL	Potential Temperature (PT) calculated from T and pressure	degrees celsius	potemp
SIGMA_T	density; sigma-t calculated from salinity; T1; Sal1 and pressure)	kg m-3	sigma_t
SIGMA_THETA	density; sigma-t calculated from salinity; T1; Sal1 and pressure)	kg m-3	sigma_t
DYNAMIC_METERS	Dynamic Height (Dyn-m)	Dyn-m	no_bcodmo_term
Attenuation	(Beam) Attenuation (light)	m-1	beam_cp

Database

Contribute Data

Dataset: CTD - Profiles
Deployment: W0407A

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Deployment-specific processing description

Database

Contribute Data

Dataset: CTD - ProfilesDeployment: W0407A

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Deployment-specific processing description

Dataset: CTD - Profiles
Deployment: W0407A