Instrument: CO2 Coulometer

Acronym:

CO2 coulometer

External Identifier:

» skos:broadMatch http://vocab.nerc.ac.uk/collection/L05/current/LAB12

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.

Datasets

Dataset Name	Brief Description
Bermuda Reef Timeseries 2007-2012	Bermuda Reef Timeseries 2007-2012
CaCO3_core	Calcium Carbonate concentrations, sediment cores
Crocosphaera watsonii CO2 and light experiment	Growth, CO2- and N2-fixation of Crocosphaera watsonii in differing pCO2 and light levels.
Crocosphaera watsonii CO2 experiment	Growth and N2-fixation of Crocosphaera watsonii under differing pCO2 levels.
Crocosphaera watsonii WH0003 cellular growth rates expt	Cellular growth by Crocosphaera watsonii (WH0003) under differing levels of phosphate, light, and pCO2.
Crocosphaera watsonii WH0003 cellular P use efficiency	Efficiency of cellular P for CO2- and gross N2-fixation rates by Crocosphaera watsonii (WH0003) as a function of light and pCO2.
Crocosphaera watsonii WH0003 CO2 and gross N2 fixation	CO2 and gross N2 fixation rates by Crocosphaera watsonii (WH0003) under differing levels of phosphate, light, and pCO2.
cyanobacteria N2 fixation	Cyanobacteria (Trichodesmium and Crocosphaera watsonii) N2-fixation responses to pCO2.
Geochemistry	Elemental composition for 16S rRNA gene amplicon and metagenomic sequences
GN01 Size-fractionated major and minor particles	Size-fractionated major and minor particle composition and concentration from the U.S. GEOTRACES Arctic Cruise (GN01) in 2015
GP15 size-fractionated major, minor, & trace particle composition and concentration - Leg 1	GP15 size-fractionated major, minor, & trace particle composition and concentration - Leg 1
GP15 size-fractionated major, minor, & trace particle composition and concentration - Leg 2	GP15 size-fractionated major, minor, & trace particle composition and concentration - Leg 2
GP16 Dissolved Inorganic Carbon	Seawater Inorganic Carbon Data (DIC) from the 2013 US GEOTRACES EPZT cruise, TN303
Hood Canal Carbonate Chemistry	Hood Canal carbonate chemistry from Niskin bottle samples collected in 2017
Impacts of OA on Crab-Oyster Behavior - Behavior Metrics	Impacts of OA on Crab-Oyster Behavior - Behavior Metrics
Impacts of OA on Crab-Oyster Behavior - Consumption	Impacts of OA on Crab-Oyster Behavior - Consumption
Impacts of OA on Crab-Oyster Behavior - Seawater Chemistry - Calculated Parameters	Impacts of OA on Crab-Oyster Behavior - Seawater Chemistry - Calculated Parameters
Impacts of OA on Crab-Oyster Behavior - Seawater Chemistry - Measured Parameters	Impacts of OA on Crab-Oyster Behavior - Seawater Chemistry - Measured Parameters
Impacts of OA on Crab-Oyster Behavior - Unsuccessful Events	Impacts of OA on Crab-Oyster Behavior - Unsuccessful Events
In-situ pump data
Lab crustose coralline algae skeletal density fx temp and pCO2	lab urchin grazing vs. temperature and pCO2
Lab urchin grazing assay fx temp and pCO2	lab urchin grazing vs. temperature and pCO2
OA and temp expt. - water chemistry	OA and temp expt. - water chemistry
Phytoplankton abundances	Phytoplankton cell counts at 3 pCO2 levels and 2 temperatures before and after 12 month conditioning
Pseudo-nitzschia_fraudulenta_experiments	P. fraudulenta growth and domic acid production experiments under varying CO2 and silicate levels.
Pseudo-nitzschia_multiseries_exp	Pseudo-nitzschia multiseries domoic acid production, C-fixation, mean growth, and element composition experiments under varying pCO2 and phosphate levels (means of triplicates).
Pseudo-nitzschia_multiseries_growth	Pseudo-nitzschia multiseries growth rates and cellular domoic acid under varying pCO2 and phosphate levels (for all replicates).
Pseudo-nitzschia_multiseries_photosynthesis	Photosynthesis rates of the diatom P. multiseries under varying pCO2, phosphate, and light levels.
sediment trap flux	Sinking POC and PIC fluxes measured with PIT sediment traps on KN207-01 cruise.
sediment trap flux	Sinking POC and PIC fluxes measured with PIT sediment traps on KN207-03 cruise.
Sediment trap fluxes
Trichodesmium proteomes and Hi CO2 adaptation	Trichodesmium nutrient-limited proteomes in 380 and 750 uatm CO2

Database

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Instrument: CO2 Coulometer