Discrete profile measurements of dissolved inorganic carbon, total alkalinity and other hydrographic and chemical data during the R/V Meteor cruise M116/1 (EXPOCODE 06M320150501) in the Tropical Atlantic Ocean from 2015-05-01 to 2015-06-03 (NCEI Accession 0170657)
INVESTIGATORS:
Martin Visbeck
- Leibniz Institute of Marine Sciences (IFM-GEOMAR)
Toste Tanhua 
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Arne Körtzinger
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, GermanyPACKAGE DESCRIPTION: This dataset includes profile discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, oxygen, nutrients and CFCs obtained during the R/V Meteor cruise M116/1 (EXPOCODE 06M320150501) in the Tropical Atlantic Ocean from 2015-05-01 to 2015-06-03.
CITE AS: Visbeck, Martin; Tanhua, Toste; Körtzinger, Arne; Schmidtko, Sunke (2018). Discrete profile measurements of dissolved inorganic carbon, total alkalinity and other hydrographic and chemical data during the R/V Meteor cruise M116/1 (EXPOCODE 06M320150501) in the Tropical Atlantic Ocean from 2015-05-01 to 2015-06-03 (NCEI Accession 0170657). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5qc01tk. Accessed [date].
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0170657
NCEI DOI: https://doi.org/10.7289/v5qc01tk
EXPOCODE: 06M320150501;
CRUISE ID: M116/1;
SECTION/LEG: A06;
TYPES OF STUDY:
Discrete measurement;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
Discrete measurement;
TEMPORAL COVERAGE:
START DATE: 2015-05-01
END DATE: 2015-06-03
SPATIAL COVERAGE:
NORTH: 15
WEST: -58.6
EAST: -17.6
SOUTH: 3.9
GEOGRAPHIC NAMES:
Atlantic Ocean;
PLATFORMS:
R/V Meteor (ID: 06M3);
RESEARCH PROJECT(S):
none;
VARIABLES / PARAMETERS:
| Dissolved Inorganic Carbon | |
|---|---|
| Abbreviation: | TCARBN |
| Unit: | UMOL/KG |
| Observation type: | Discrete, bottle |
| Measured or calculated: | Measured |
| Analyzing instrument: | SOMMA (single operator multi-parameter metabolic analyzer) system, which is based on coulometric titration of the CO2 evolved from the seawater sample upon acidification with phosphoric acid (Johnson et al., 1993) |
| Replicate information: | DIC was determined from 1246 samples at 66 stations. A total amount of 107 duplicates (σ = 1.30 μmol/kg) and 8 triplicates (σ = 0.65 μmol/kg) were taken and 105 CRMs were measured in order to determine accuracy and precision. |
| CRM manufacturer: | Andrew Dickson Laboratory at SIO |
| CRM batch number: | Batch 142 and 143 |
| Preservation method: | mercuric chloride solution |
| Preservative volume: | 100 mL |
| Uncertainty: | precision was better than 2 micromol kg-1 |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Method reference: | Johnson, K.M., Wills, K.D., Butler, D.B., Johnson, W.K., and Wong, C.S. (1993). Coulometric total carbon dioxide analysis for marine studies: Maximizing the performance of an automated continuous gas extraction system and coulometric detector. Marine Chemistry, 44, pp 167-189. |
| Researcher name: | Arne Körtzinger |
| Researcher institution: | GEOMAR Germany |
| Total alkalinity | |
|---|---|
| Abbreviation: | ALKALI |
| Unit: | UMOL/KG |
| Observation type: | Discrete, bottle |
| Measured or calculated: | Measured |
| Analyzing instrument: | Semi-automatic analyzer called VINDTA (Versatile Instrument for the Determination of Titration Alkalinity). |
| Type of titration: | potentiometric titration |
| Cell type (open or closed): | open |
| Standardization description: | TA was determined from 1246 samples at 66 stations. A total amount of 108 duplicates (σ = 2.73 μmo/kg)and 9 triplicates (σ = 2.02 μmol/kg) were taken and 122 CRM’s were measured in order to determine accuracy and precision. |
| CRM batch number: | Batch 142 and 143 |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Method reference: | Dickson, Andrew G., Chris Sabine and James R. Christian, editors, "Guide to Best Practices for Ocean CO2 Measurements", Pices Special Publication 3, IOCCP Report No. 8, October 2007, SOP 3b, "Determination of total alkalinity in sea water using an open-cell titration" |
| Researcher name: | Arne Körtzinger |
| Researcher institution: | GEOMAR Germany |
| CTD Temperature | |
|---|---|
| Abbreviation: | CTDTMP |
| Unit: | degrees celcius |
| Observation type: | CTD sensor |
| Sampling instrument: | CTD |
| Analyzing instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Sunke Schmidtko |
| Researcher institution: | GEOMAR Germany |
| CTD Salinity | |
|---|---|
| Abbreviation: | CTDSAL |
| Observation type: | CTD sensor |
| Sampling instrument: | CTD |
| Analyzing instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Sunke Schmidtko |
| Researcher institution: | GEOMAR Germany |
| Bottle Salinity | |
|---|---|
| Abbreviation: | SALNTY |
| Observation type: | Bottle, discrete |
| Sampling instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Martin Visbeck |
| Researcher institution: | GEOMAR Germany |
| CTD Oxygen | |
|---|---|
| Abbreviation: | CTDOXY |
| Unit: | UMOL/KG |
| Observation type: | CTD sensor |
| Sampling instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Sunke Schmidtko |
| Researcher institution: | GEOMAR Germany |
| Bottle Oxygen | |
|---|---|
| Abbreviation: | OXYGEN |
| Unit: | UMOL/KG |
| Observation type: | Bottle, discrete |
| Sampling instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Toste Tanhua; |
| Researcher institution: | GEOMAR Germany |
| Nutrients | |
|---|---|
| Abbreviation: | SILCAT, NITRAT, NITRIT, PHSPHT |
| Unit: | UMOL/KG |
| Observation type: | Bottle, discrete |
| Sampling instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Toste Tanhua; |
| Researcher institution: | GEOMAR Germany |
| CFC | |
|---|---|
| Abbreviation: | CFC |
| Unit: | PMOL/KG |
| Observation type: | Bottle, discrete |
| Sampling instrument: | CTD bottles |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Toste Tanhua; |
| Researcher institution: | GEOMAR Germany |
PUBLICATIONS DESCRIBING THIS DATASET:
none;
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:
Deutsche Forschungsgemeinschaft (DFG) and the Bundesministerium für Bildung und Forschung (BMBF)
PROJECT TITLE:
Oxygen in the Tropical Atlantic
PROJECT ID:
SUBMITTED BY: Robert M. Key (key@princeton.edu)
SUBMISSION DATE: 2018-02-15
REVISION DATE: 2018-03-28
PREVIOUS VERSIONS: Version 1.1
