Dataset: Hood Canal Carbonate Chemistry
Deployment: CB1077

Hood Canal carbonate chemistry from Niskin bottle samples collected in 2017

Principal Investigator:

Julie E. Keister (University of Washington, UW)

Co-Principal Investigator:

Daniel Grunbaum (University of Washington, UW)

Contact:

Julie E. Keister (University of Washington, UW)

BCO-DMO Data Manager:

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

Project:

Causes and consequences of hypoxia and pH impacts on zooplankton: Linking movement behavior to vertical distribution. (Zooplankton Swimming)

Data URL:

https://www.bco-dmo.org/dataset-deployment/826201/data

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Description

Hood Canal carbonate chemistry from Niskin bottle samples collected in 2017 at Twanoh buoy (47.38, -123.01).

Methods & Sampling

Dataset acquisition description

Water for carbonate chemistry data were collected and analyzed according to Dickson et al., (2007).

Data Processing Description

Dataset Processing Description

Carbonate chemistry samples were collected and analyzed according to Dickson et al., (2007). AT was measured by open-cell potentiometric titration and CT was measured by acidification and quantification using a CO₂ coulometer (UIC model CM5015) at the University of Washington’s School of Oceanography. Certified Reference Materials were analyzed as an independent verification of instrument calibrations (Dickson et al. 2007). We calculated full carbonate parameters from AT and CT using the R package seacarb and constants from Lueker et al. (2000) and the total pH scale.

The pH data from CTD casts for each cruise should be corrected using an average offset to pH calculated from the five discrete AT and CT samples from that cruise.

BCO-DMO Processing:
- changed date formats to YYYY-MM-DD;
- renamed fields;
- added Latitude and Longitude columns.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1657992	NSF Division of Ocean Sciences

Instruments

CO2 Coulometer

Supplied Name: UIC model CM5015

Supplied Description:

AT was measured by open-cell potentiometric titration and CT was measured by acidification and quantification using a CO₂ coulometer (UIC model CM5015) at the University of Washington's School of Oceanography

Instrument Type

Generic Name: CO2 Coulometer

Acronym: CO2 coulometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB12

Generic Description:

A CO2 coulometer semi-automatically controls the sample handling and extraction of CO2 from seawater samples. Samples are acidified and the CO2 gas is bubbled into a titration cell where CO2 is converted to hydroxyethylcarbonic acid which is then automatically titrated with a coulometrically-generated base to a colorimetric endpoint.

Niskin bottle

Supplied Name: Niskin bottles

Supplied Description:

Water for carbonate chemistry data were collected with Niskin bottles.

Instrument Type

Generic Name: Niskin bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/

Generic Description:

A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Date_Collected	Date collected (PDT); format: YYYY-MM-DD	unitless	date
Date_Run	Date run (PDT); format: YYYY-MM-DD	unitless	date
Cruise	Cruise ID	unitless	cruise_id
Station	Station number	unitless	station
Latitude	Latitude	degrees North	lat
Longitude	Longitude	degrees East	lon
Time_PDT	Time (PDT); format: hh:mm:ss	unitless	time
Depth	Depth	meters (m)	depth
insitu_Temp	in situ temperature	degrees Celsius	temp
Salinity	Salinity	PSU	sal
DIC_umol_kg	Dissolved inorganic carbon	micromoles per kilogram (umol/kg)	DIC
AT	Total alkalinity	micromoles per kilogram (umol/kg)	TALK
Patm	Surface atmosphereic pressure	atmospheres (atm)	press_bar
P	Hydrostatic pressure	bars	press
pH	pH	unitless	pH
CO2	CO2	moles per kilogram (mol/kg)	CO2
fCO2	Fugacity	microatmospheres (uatm)	fCO2
pCO2	Partial pressure	microatmospheres (uatm)	pCO2
fCO2pot	Fugacity potential	microatmospheres (uatm)	fCO2
pCO2pot	Partial pressure potential	microatmospheres (uatm)	pCO2
fCO2insitu	Fugacity in situ	microatmospheres (uatm)	fCO2
pCO2insitu	Partial pressure in situ	microatmospheres (uatm)	pCO2
HCO3	HCO3	moles per kilogram (mol/kg)	bicarbonate
CO3	CO3	moles per kilogram (mol/kg)	carbonate
DIC_mol_kg	Dissolved inorganic carbon	moles per kilogram (mol/kg)	DIC
ALK	Total alkalinity	moles per kilogram (mol/kg)	TALK
OmegaAragonite	Aragonite saturation state	omega arg	OM_ar
OmegaCalcite	Calcite saturation state	omega cal	OM_ca

Database

Contribute Data

Dataset: Hood Canal Carbonate Chemistry
Deployment: CB1077

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Hood Canal Carbonate ChemistryDeployment: CB1077

Dataset acquisition description

Dataset Processing Description

Dataset: Hood Canal Carbonate Chemistry
Deployment: CB1077