Dataset: CTD Profiles
Deployment: CT2019-03

CTD profiles

Principal Investigator:

Dennis J. McGillicuddy (Woods Hole Oceanographic Institution, WHOI)

Co-Principal Investigator:

Bruce Keafer (Woods Hole Oceanographic Institution, WHOI)

Data Manager:

Olga Kosnyrev (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

WHCOHH - Physiological and behavioral plasticity in harmful algal bloom dynamics: variation across different habitats (WHCOHH Algal Bloom Dynamics)

Data URL:

https://www.bco-dmo.org/dataset-deployment/846052/data

Expand/Collapse All

Description

Methods & Sampling

Dataset acquisition description

Sea-Bird SBE 9 CTD data measurements using Sea-Bird Software SBE Seasave at standard CTD stations: profiles (down casts) with water sampling (up casts).

Data Processing Description

Dataset Processing Description

Sea-Bird Software SBE Data Processing. All CTD profiles have been binned using 1db pressure bin.

Station numbers ending with .2 are station named with with "a" at the end (usually this is second cast at the same location when primary cast failed for some reason).

BCO-DMO Processing notes:

Adjusted station numbers (everything ending with .0 to integer) to join with location file
Concatenated all ctd files, added file names as Cruise IDs
Adjusted headers to comply with database requirements
Rounded fields to 3 and 4 decimales
Converted dates to ISO format

More information about this dataset deployment

Funding

Award Number	Funding Source
NIH-P01ES021923	National Institutes of Health
NIH-P01ES028938	National Institutes of Health
OCE-1314642	NSF Division of Ocean Sciences
OCE-1840381	NSF Division of Ocean Sciences

Instruments

CTD Sea-Bird SBE 911plus

Supplied Name: SeaBird 911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors

Supplied Description:

SeaBird 911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors At each station, CTD casts measured temperature, salinity and PAR. Water samples collected at depths of 300, 250, 200, 150, 120, 100, 80, 60, 40, 30, 20, 10 m, and the surface were filtered and preserved for nutrient analysis.

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

Pressure Sensor

Supplied Name: Digiquartz

Supplied Description:

Instrument Type

Generic Name: Pressure Sensor

Generic Description:

A pressure sensor is a device used to measure absolute, differential, or gauge pressures. It is used only when detailed instrument documentation is not available.

Sea-Bird SBE 43 Dissolved Oxygen Sensor

Supplied Name: SBE 43 Dissolved Oxygen Sensor

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

Seapoint Turbidity Meter

Supplied Name: Seapoint Turbidity

Supplied Description:

Instrument Type

Generic Name: Seapoint Turbidity Meter

Acronym: Seapoint Turbidity

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0104/

Generic Description:

The Seapoint Turbidity Meter detects light scattered by particles suspended in water, generating an output voltage proportional to turbidity or suspended solids.

WETStar CDOM Fluorometer

Supplied Name: WET Labs WETstar Fluorometer

Supplied Description:

These low cost, low power optical sensors provide comparable performance to other fluorometers at a fraction of their cost, power requirements, and size.

The WETStar uses a novel optical flow design that allows for both pump-through and flow-through applications. It is easily mated with CTD packages.

Provides calibrated, high-resolution (60 Hz signal and 1 Hz average) chlorophyll-a measurement of mechanically stimulated bioluminescence to assess water column ecosystem dynamics. 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

Instrument Type

Generic Name: WETStar CDOM Fluorometer

Acronym: WETStar CDOM Fluor

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

Generic Description:

The WETStar CDOM fluorometer measuring fluorescence as a proxy for dissolved matter absorption.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise_ID	cruise identifier	unitless	cruise_id
Station_Number	Station number	unitless	cast
Latitude	Latitude	degN	lat
Longitude	Longitude	degW	lon
ISO_DateTime_UTC	Sampling ISO DateTime UTC time zone	unitless	date
TimeElapsed	Elapsed time	sec	time_elapsed
PrDM	Pressure	db	press
T090C	Temperature	degC	temp
C0	Conductivity	S/m	cond
WetStar	Fluorescence 1	mg/m^3	fluor
Sbeox0V	Raw oxygen	V	O2_v
Sal00	Salinity	unitless	sal_bottle
SigmaA	Sigma-theta density	kg/m^3	sigma_0
Sbeox0	Dissolved oxygen concentration	ml/L	O2
pH	pH	unitless	pH
flECO_AFL	Fluorescence 2	mg/m^3	PAR
Trans	Beam transmission	percentage (%)	trans
AltM	Altimetry	m	altitude
PAR	PAR/Irradiance	microEinsteins/m^2/second	no_bcodmo_term
seaTurbMtr	Turbidity	NTU	fluor
sPAR	SPAR/Surface Irradiance	microEinsteins/m^2/second	SPAR
WetStarV	Fluorescence 1 voltage	V	fluor

Database

Contribute Data

Dataset: CTD Profiles
Deployment: CT2019-03

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: CTD ProfilesDeployment: CT2019-03

Dataset acquisition description

Dataset Processing Description

Dataset: CTD Profiles
Deployment: CT2019-03