Dataset: BVAL46: CTD profiles
Deployment: AE1123

BVAL46 ctd

Principal Investigator:

Michael W. Lomas (Bigelow Laboratory for Ocean Sciences)

Co-Principal Investigator:

Adam Martiny (University of California-Irvine, UC Irvine)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Biological Controls on the Ocean C:N:P ratios (Biological C:N:P ratios)

Deployment Synonyms:

BVAL46

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/829856/data

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Description

Methods & Sampling

Dataset acquisition description

Sampling and analytical procedures:

Temperature, salinity, oxygen concentration, and PAR were measured using a Sea-Bird SBE-911+ CTD platform equipped on the rosette deployment system.

Chlorophyll a was measured using a WetLabs FLNTU combination fluorometer and turbidity sensor equipped on the CTD rosette.

Salinity and oxygen water samples were collected via a Niskin bottle rosette system and analyzed according to protocols outlined in Knap et al. 1993

For data processing information see Knap et al. 1993.

For published methodologies please see the Related Publications section.

Data Processing Description

Dataset Processing Description

BCO-DMO Processing:- data submitted in Excel file "BVAL46_BCODMO.xlsx" sheet "SHEET1" extracted to csv
- added conventional header with dataset name, PI name, version date
- renamed columns to conform with BCO-DMO naming conventions (removed spaces)
- rounded yrday_utc to 2 decimal places
- changed Longitude to negative values to represent West
- sorted rows by ISO_DateTime_UTC

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1045966	NSF Division of Ocean Sciences
OCE-1046001	NSF Division of Ocean Sciences
OCE-1046297	NSF Division of Ocean Sciences
OCE-1046368	NSF Division of Ocean Sciences

Instruments

CTD Sea-Bird SBE 911plus

Supplied Name: Sea-Bird SBE-911+

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

WETLabs ECO-FLNTU

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: WETLabs ECO-FLNTU

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0215/

Generic Description:

The ECO FLNTU is a dual-wavelength, single-angle sensor for simultaneously determining both chlorophyll fluorescence and turbidity.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise	Cruise ID	unitless	cruise_id
ISO_DateTime_UTC	Date/Time (UTC) ISO formatted yyyy-mm-ddTHH:MMZ	unitless	ISO_DateTime_UTC
yrday_utc	UTC day and decimal time: 326.5 for the 326th day of the year or November 22 at 1200 hours (noon)	unitless	yrday_utc
Station	Station ID number	unitless	station
Cast	Cast number	unitless	cast
Latitude	Sampling Site Latitude (North is positive)	decimal degrees	lat
Longitude	Sampling Site Longitude (West is negative)	decimal degrees	lon
Depth	Water sample depth	meters	depth
Temperature	Temperature	degrees Celsius	temp
Salinity	Salinity	Practical Salinity Units (PSU)	sal
Oxygen	Oxygen concentration	micromol/kilogram (umol/kg)	O2
CTD_Chla	Chlorophyll a concentration; measured off a CTD platform	microgram/liter (ug/L)	chl_a
Beam_attenuation	Attenuation meter; 25 cm path length	per meter	beam_cp

Database

Contribute Data

Dataset: BVAL46: CTD profiles
Deployment: AE1123

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: BVAL46: CTD profilesDeployment: AE1123

Dataset acquisition description

Dataset Processing Description

Dataset: BVAL46: CTD profiles
Deployment: AE1123