Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from unknown platforms in the South Pacific Ocean and Southern Oceans from 2010-12-28 to 2014-02-21 (NCEI Accession 0160574)
INVESTIGATORS:
Dorothee C. E. Bakker
- University of East Anglia; School of Environmental Sciences
Oliver J. Legge
- University of East Anglia (UEA)
Hugh J. Venables
- British Antarctic Survey (BAS)
PACKAGE DESCRIPTION: This dataset includes chemical, discrete sample, physical and profile data collected from unknown platforms in the South Pacific Ocean and Southern Oceans (> 60 degrees South) from 2010-12-28 to 2014-02-21. These data include DISSOLVED INORGANIC CARBON (DIC), NITRATE, SALINITY, TOTAL ALKALINITY (TA), WATER TEMPERATURE, phosphate and silicate. The instruments used to collect these data include Alkalinity titrator, CTD, Coulometer for DIC measurement and bottle. These data were collected by Hugh Venables of British Antarctic Survey and Dorothee Bakker and Oliver Legge of University of East Anglia; School of Environmental Sciences as part of the TSM_Ryder_Bay_67S_68W_2010_2014 data set. CDIAC associated the following cruise ID(s) with this data set: TSM_Ryder_Bay_67S_68W_2010_2014
CITE AS: Bakker, Dorothee C. E.; Legge, Oliver J.; Venables, Hugh J. (2017). Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from unknown platforms in the South Pacific Ocean and Southern Oceans from 2010-12-28 to 2014-02-21 (NCEI Accession 0160574). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.tsm_ryder_bay_67s_68w. Accessed [date].
DATA PACKAGES RELATED TO THIS ONE:
none;
none;
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0160574
NCEI DOI: https://doi.org/10.3334/cdiac/otg.tsm_ryder_bay_67s_68w
EXPOCODE: RATS20101228;
CRUISE ID: TSM_Ryder_Bay_67S_68W_2010_2014;
TYPES OF STUDY:
Discrete measurement;Time series;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
Discrete measurement;Time series;
TEMPORAL COVERAGE:
START DATE: 2010-12-28
END DATE: 2014-02-21
SPATIAL COVERAGE:
NORTH: -67.57
WEST: -68.225
EAST: -68.133
SOUTH: -67.581
GEOGRAPHIC NAMES:
Ryder Bay;Adelaide Island;West Antarctic Peninsula;
PLATFORMS:
Ryder_Bay_67S_68W (ID: RATS20101228);
RESEARCH PROJECT(S):
none;
VARIABLES / PARAMETERS:
| Total alkalinity | |
|---|---|
| Abbreviation: | DIC |
| Unit: | μmol/kg |
| Observation type: | time series |
| Measured or calculated: | measured |
| Sampling instrument: | Niskin Bottle |
| Analyzing instrument: | VINDTA and coulometer |
| Detailed sampling and analyzing information: | Unfiltered samples drawn from Niskin bottle using silicon tubing. Poisoned with mercuric chloride. Sealed with greased stopper. Cool, dark storage. Analysed by Coulometry. Samples analysed in three batches, corresponding to three field seasons (2011-2012, 2012-2013, 2013-2014). Samples analysed on two VINDTAs (V4 and V7). |
| Replicate information: | Replicate analyses (separate bottles) for almost all samples |
| Standardization description: | CRM batch 107 |
| Standardization frequency: | Two or three CRMs per coulometer cell |
| CRM manufacturer: | Andrew Dickson's lab at Scripps Institution of Oceanography |
| CRM batch number: | 107 |
| Preservation method: | mercuric chloride |
| Preservative volume: | 50uL for 250mL samples, 100uL for 500mL |
| Preservative correction: | volume correction applied for poison |
| Uncertainty: | The standard deviation of CRM measurements over the course of each analysis period is consistently less than 2.5 μmol/kg. There is greater variation in replicate precision between the three field seasons. DIC replicate (separate bottles) standard deviation in 2010-2012 was 4.3 μmol kg-1. In 2012-2013 it was 6.2 μmol kg-1 and in 2013-2014 it was 3.4 μmol kg-1. |
| Quality flag convention: | 2 = good, 3 = suspect, 6 = mean of replicates |
| Method reference: | Legge, O.J., Bakker, D.C.E., Meredith, M.P., Venables, H.J., Brown, P.J., Jones, E.M., Johnson, M.T. (2016) The seasonal cycle of carbonate system processes in Ryder Bay, West Antarctic Peninsula. Deep-Sea Research II, https://doi.org/10.1016/j.dsr2.2016.11.006. |
| Researcher name: | Replicate analyses (separate bottles) for almost all samples |
| Researcher institution: | University of East Anglia |
| Total alkalinity | |
|---|---|
| Abbreviation: | TA |
| Unit: | μmol/kg |
| Observation type: | time series |
| Measured or calculated: | measured |
| Calculation method and parameters: | |
| Sampling instrument: | Niskin bottle |
| Analyzing instrument: | VINDTA |
| Type of titration: | Potentiometric, using Metrohm Titrino and VINDTA instruments V7 and V4, calculation of TA using Matlab code by Steven van Heuven, version v33, based on code by Ernie Lewis in QB (1996). |
| Cell type (open or closed): | open |
| Curve fitting method: | Iterative Gran followed by iterative chi-squared |
| Detailed sampling and analyzing information: | Unfiltered samples drawn from Niskin bottle using silicon tubing. Poisoned with mercuric chloride. Sealed with greased stopper. Cool, dark storage. Samples analysed in three batches, corresponding to three field seasons (2011-2012, 2012-2013, 2013-2014). Samples analysed on two VINDTAs (V4 and V7). |
| Replicate information: | Replicate analyses (separate bottles) for almost all samples |
| Standardization description: | CRM batch 107 |
| Standardization frequency: | Two or three CRMs per coulometer cell |
| CRM manufacturer: | Andrew Dickson's lab at Scripps Institution of Oceanography |
| CRM batch number: | 107 |
| Preservation method: | mercuric chloride |
| Preservative volume: | 50uL for 250mL samples, 100uL for 500mL |
| Preservative correction: | volume correction applied for poison |
| Uncertainty: | The standard deviation of CRM measurements over the course of each analysis period is consistently less than 1.5 μmol/kg. There is greater variation in replicate precision between the three field seasons. TA replicate (separate bottles) standard deviation in 2010-2012 was 4.9 μmol kg-1. In 2012-2013 it was 7.0 μmol kg-1 and in 2013-2014 it was 1.5 μmol kg-1. |
| Quality flag convention: | 2 = good, 3 = suspect, 6 = mean of replicates |
| Method reference: | Legge, O.J., Bakker, D.C.E., Meredith, M.P., Venables, H.J., Brown, P.J., Jones, E.M., Johnson, M.T. (2016) The seasonal cycle of carbonate system processes in Ryder Bay, West Antarctic Peninsula. Deep-Sea Research II, https://doi.org/10.1016/j.dsr2.2016.11.006 |
| Researcher name: | Dorothee Bakker and Oliver Legge |
| Researcher institution: | University of East Anglia |
| in-situ temperature | |
|---|---|
| Abbreviation: | Temperature |
| Unit: | degrees celcius |
| Analyzing instrument: | SeaBird 19+CTD |
| Uncertainty: | 0.002 degrees celcius |
| Researcher name: | Hugh Venable |
| Researcher institution: | BAS |
| Salinity | |
|---|---|
| Abbreviation: | Salinity |
| Unit: | PSS |
| Analyzing instrument: | SeaBird 19+ CTD |
| Uncertainty: | 0.005 |
| Researcher name: | Hugh Venables |
| Researcher institution: | BAS |
| Total oxidised nitrogen (NOx) | |
|---|---|
| Abbreviation: | Nitrate |
| Unit: | μmol/kg |
| Sampling instrument: | Niskin Bottle |
| Uncertainty: | 1.50% |
| Researcher name: | Ocean Scientific International Ltd. (OSIL) for Hugh Venables at the British Antarctic Survey (BAS) |
| Phosphate | |
|---|---|
| Abbreviation: | Phosphate |
| Unit: | μmol/kg |
| Sampling instrument: | Niskin Bottle |
| Uncertainty: | 2.70% |
| Researcher name: | Ocean Scientific International Ltd. (OSIL) for Hugh Venables at the British Antarctic Survey (BAS) |
| Silicate | |
|---|---|
| Abbreviation: | Silicate |
| Unit: | μmol/kg |
| Sampling instrument: | Niskin Bottle |
| Uncertainty: | 2.60% |
| Researcher name: | Ocean Scientific International Ltd. (OSIL) for Hugh Venables at the British Antarctic Survey (BAS) |
PUBLICATIONS DESCRIBING THIS DATASET:
Please cite: Legge, O.J., Bakker, D.C.E., Meredith, M.P., Venables, H.J., Brown, P.J., Jones, E.M., Johnson, M.T. (2016) The seasonal cycle of carbonate system processes in Ryder Bay, West Antarctic Peninsula. Deep-Sea Research II, https://doi.org/10.1016/j.dsr2.2016.11.006
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:
Sampling and analysis were supported by British Antarctic Survey (BAS) Polar Oceans funding from NERC and the UK Ocean Acidification Research Programme (NE/H017046/1) grant at the University of East Anglia (UEA), funded by NERC, the Department for Energy and Climate Change and the Department for Environment, Food and Rural Affairs. Analysis was also supported by the Natural Environment Research Council (NERC)(NE/L50158X)
PROJECT TITLE:
PROJECT ID:
SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)
SUBMISSION DATE: 2017-02-22
