Dissolved inorganic carbon (DIC), total alkalinity, pH on seawater scale, chlorofluorocarbon 12 (CFC-12), nutrients, water temperature, salinity, dissolved oxygen and other hydrographic and chemical data collected from discrete samples and profile observations during the R/V Johan Hjort cruise JH2019205 (EXPOCODE 58JH20190515) in the North Atlantic Ocean, Nordic Seas from 2019-05-15 to 2019-06-04 (NCEI Accession 0236506)
INVESTIGATORS:
Siv K. Lauvset 
- Bjerknes Centre for Climate Research
- Bjerknes Centre for Climate Research
Meike Becker
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Linda Fonnes Lunde
- Institute of Marine Research - Norway (IMR)
Kristin Jackson-Misje
-
PACKAGE DESCRIPTION: This dataset consists of dissolved inorganic carbon (DIC), total alkalinity, pH on seawater scale, chlorofluorocarbon 12 (CFC-12), nutrients, water temperature, salinity, dissolved oxygen and other hydrographic and chemical data collected from discrete samples and profile observations during the R/V Johan Hjort cruise JH2019205 (EXPOCODE 58JH20190515) in the North Atlantic Ocean, Nordic Seas from 2019-05-15 to 2019-06-04. The purpose was to monitoring of the IMR standard transects Svinøy, Gimsøy, Bjørnøya-Vest, and Fugløya-Bjørnøya. IMR takes biological (plankton), chemical (macronutrients, chlorophyll), and physical (CTD, ADCP) data at these sections several times every year. In addition, several Argo-floats were deployed. In order to get validation samples for the BGC-Argo floats staff from UiB and NORCE joined the cruise to collect and analyze carbonate chemistry (DIC, AT, pH), oxygen, and trace gas (CFC-12, SF6) data. This metadata describes these chemical data, as well as the macronutrients and salinity data.
CITE AS: Lauvset, Siv K.; Becker, Meike; Jackson-Misje, Kristin; Lunde, Linda Fonnes (2021). Dissolved inorganic carbon (DIC), total alkalinity, pH on seawater scale, chlorofluorocarbon 12 (CFC-12), nutrients, water temperature, salinity, dissolved oxygen and other hydrographic and chemical data collected from discrete samples and profile observations during the R/V Johan Hjort cruise JH2019205 (EXPOCODE 58JH20190515) in the North Atlantic Ocean, Nordic Seas from 2019-05-15 to 2019-06-04 (NCEI Accession 0236506). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0236506. Accessed [date].
DATA PACKAGES RELATED TO THIS ONE:
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0236506
EXPOCODE: 58JH20190515;
CRUISE ID: JH2019205;
SECTION/LEG: Bjørnoya Vest;
Fugloya-Bjoernoya;
Gimsoy;
Svinoy;
TYPES OF STUDY:
Discrete measurement;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
Discrete measurement;
TEMPORAL COVERAGE:
START DATE: 2019-05-15
END DATE: 2019-06-04
SPATIAL COVERAGE:
NORTH: 74.5
WEST: -4.75
EAST: 20
SOUTH: 62.95
GEOGRAPHIC NAMES:
North Atlantic Ocean;Nordic Seas;
PLATFORMS:
R/V Johan Hjort (ID: 58JH);
RESEARCH PROJECT(S):
none;
VARIABLES / PARAMETERS:
| Dissolved Inorganic Carbon | |
|---|---|
| Abbreviation: | TCARBN |
| Unit: | micro-mol per kg |
| Observation type: | profile |
| Measured or calculated: | measured |
| Calculation method and parameters: | NA |
| Sampling instrument: | niskin |
| Analyzing instrument: | VINDTA 3D |
| Detailed sampling and analyzing information: | Onboard samples were drawn from niskin bottles following SOP as outlined in Dickson et al (2007) and analyzed immediately (no poisoning). Samples taken for analysis on land were drawn from niskin bottles following SOP as outlined in Dickson et al (2007), poisoned with HgCl2 and stored in a dark cool environment. Samples were analyzed within 6 weeks of end of cruise. |
| Replicate information: | 1 full test where all niskins were filled at same depth; one sample analyzed twice in a row on 50% of stations |
| Standardization description: | CRM |
| Standardization frequency: | CRM analyzed before and after each full profile |
| CRM manufacturer: | Andrew Dickson |
| Preservation method: | HgCl2 |
| Preservative volume: | one drop in 500mL volume |
| Preservative correction: | none |
| Uncertainty: | 1.5 micro-mol per kg |
| Quality flag convention: | WOCE flags: 2=acceptable; 3=questionable; 4=bad; 6=mean of replicates;9=missing |
| Method reference: | Dickson 2007 |
| Researcher name: | Siv K. Lauvset |
| Researcher institution: | NORCE Norwegian Research Centre |
| Total alkalinity | |
|---|---|
| Abbreviation: | ALKALI |
| Unit: | micro-mol per kg |
| Observation type: | profile |
| Measured or calculated: | measured |
| Calculation method and parameters: | NA |
| Sampling instrument: | niskin |
| Analyzing instrument: | VINDTA 3S |
| Type of titration: | double endpoint |
| Cell type (open or closed): | open |
| Curve fitting method: | non-linear curve fitting using results from a modified GRAN plot |
| Detailed sampling and analyzing information: | Onboard samples were drawn from niskin bottles following SOP as outlined in Dickson et al (2007) and analyzed immediately (no poisoning). Samples taken for analysis on land were drawn from niskin bottles following SOP as outlined in Dickson et al. (2007), poisoned with HgCl2 and stored in a dark cool environment. Samples were analyzed within 6 weeks of end of cruise. |
| Replicate information: | none |
| Standardization description: | CRM |
| Standardization frequency: | CRM analyzed before and after each full profile |
| CRM manufacturer: | Andrew Dickson |
| Preservation method: | HgCl2 |
| Preservative volume: | one drop in 500mL volume |
| Preservative correction: | none |
| TA blank correction: | NA |
| Uncertainty: | 2.5 micro-mol per kg |
| Quality flag convention: | WOCE flags: 2=acceptable; 3=questionable; 4=bad; 6=mean of replicates;9=missing |
| Method reference: | Dickson et al. 2007 |
| Researcher name: | Siv K. Lauvset |
| Researcher institution: | NORCE Norwegian Research Centre |
| pH | |
|---|---|
| Abbreviation: | PH_TOT |
| pH scale: | total |
| Observation type: | profile |
| Measured or calculated: | measured |
| Calculation method and parameters: | NA |
| Sampling instrument: | niskin |
| Analyzing instrument: | Jasco spectrophotometer |
| Temperature of pH measurement: | 25C on stations 488-535 and 575-592, ~20C on stations 536-569. All pH data were recalculated to 25C and are presented at that temperature in the data file |
| Detailed sampling and analyzing information: | Samples drawn from niskins into 250mL glass bottles following Dickson et al (2007). For leg 1 we used a water jacketed 10cm cell for temperature control, and automated pumping. Analysis following Carter et al (2013). For leg 2 we were unable to use the water jacketed cell so instead used a normal 10cm cell. Temperature was measured and recorded before and after analysis. Analysis following Carter et al (2013). Data corrected to 25C after analysis (using the measured AT) |
| Replicate information: | one duplicate run on each profile |
| Standardization description: | TRIS and CRM |
| Standardization frequency: | CRM run at least once for each full profile. Each CRM run 2-4 times for replication analysis. We brought 10 bottles of TRIS. These were analyzed at regular intervals throughout the cruise |
| pH standard values: | TRIS: 8.0932; CRM: 7.883 (calculated from certified DIC and AT values using Merhbach K1/K2 constants refit by Dickson and Millero, Dickson for KSO4 constant, Lee et al for total boron, Dickson and Riley for KF constant) |
| Temperature of standardization: | 25C |
| Temperature correction method: | CO2SYS with measured AT |
| At what temperature was pH reported: | 25C |
| Quality flag convention: | WOCE flags: 2=acceptable; 3=questionable; 4=bad; 6=mean of replicates;9=missing |
| Method reference: | Carter et al 2013 |
| Researcher name: | Siv K. Lauvset |
| Researcher institution: | NORCE Norwegian Research Centre |
| dissolved oxygen in seawater | |
|---|---|
| Abbreviation: | OXYGEN |
| Unit: | micro-mol per kg |
| Observation type: | profile |
| Sampling instrument: | niskin |
| Analyzing instrument: | winkler |
| Detailed sampling and analyzing information: | Samples were drawn from niskin bottles and analyzed immediately following SOP as outlined in Dickson et al (2007) |
| Replicate information: | 1 station where all niskins were closed at the same depth; 2 stations where two niskins were closed at each depth |
| Uncertainty: | 0.3 micro-mol per kg |
| Quality flag convention: | WOCE flags: 2=acceptable; 3=questionable; 4=bad; 6=mean of replicates;9=missing |
| Method reference: | https://www.go-ship.org/HydroMan.html |
| Researcher name: | Kristin Jackson-Misje |
| Researcher institution: | University of Bergen |
| salinity | |
|---|---|
| Abbreviation: | SALNTY |
| Unit: | NA |
| Observation type: | profile |
| Sampling instrument: | niskin |
| Analyzing instrument: | Guildline Portasal 8410A, serial no 68244 |
| Detailed sampling and analyzing information: | sampling and analysis following GO-SHIP protocols |
| Replicate information: | none |
| Quality flag convention: | WOCE flags: 2=acceptable; 3=questionable; 4=bad; 6=mean of replicates;9=missing |
| Method reference: | https://www.go-ship.org/HydroMan.html |
| Researcher name: | Kristin Jackson-Misje |
| Researcher institution: | University of Bergen |
| inorganic nitrate | |
|---|---|
| Abbreviation: | NITRAT |
| Unit: | micro-mol per kg |
| Observation type: | profile |
| Sampling instrument: | niskin |
| Analyzing instrument: | Skalar autoanalyser |
| Detailed sampling and analyzing information: | Samples were taken in plastic containers, poisoned with chloroform and kept refridgerated until analysis after the cruise. Spectrophotometric analysis of absorption at 540nm after reduction to nitrite using cadmium in the presence of copper-ions. Nitrate is the difference between this nitrite measurement and that without cadmium (see below) |
| Replicate information: | none |
| Uncertainty: | 0.5 micro-mol per liter |
| Quality flag convention: | WOCE flags: 2=acceptable; 3=questionable; 4=bad; 6=mean of replicates;9=missing |
| Method reference: | Bendschneider, K. and Robinson, R.I. (1952) A new Spectrophotometric method for the determination of nitrite in Seawater. J. Mar. Res. 2:87-96 |
| Researcher name: | Linda Fonnes Lunde |
| Researcher institution: | Institute of Marine Research |
| inorganic nitrite | |
|---|---|
| Abbreviation: | NITRIT |
| Unit: | micro-mol per kg |
| Observation type: | profile |
| Sampling instrument: | niskin |
| Analyzing instrument: | Skalar autoanalyser |
| Detailed sampling and analyzing information: | Samples were taken in plastic containers, poisoned with chloroform and kept refridgerated until analysis after the cruise. Spectrophotometric analysis of absorption at 540nm |
| Replicate information: | none |
| Uncertainty: | 0.06 micro-mol per liter |
| Quality flag convention: | WOCE flags: 2=acceptable; 3=questionable; 4=bad; 6=mean of replicates;9=missing |
| Method reference: | Bendschneider, K. and Robinson, R.I. (1952) A new Spectrophotometric method for the determination of nitrite in Seawater. J. Mar. Res. 2:87-96 |
| Researcher name: | Linda Fonnes Lunde |
| Researcher institution: | Institute of Marine Research |
| inorganic phosphate | |
|---|---|
| Abbreviation: | PHSPHT |
| Unit: | micro-mol per kg |
| Observation type: | profile |
| Sampling instrument: | niskin |
| Analyzing instrument: | Skalar autoanalyser |
| Detailed sampling and analyzing information: | Samples were taken in plastic containers, poisoned with chloroform and kept refridgerated until analysis after the cruise. Spectrophotometric analysis of absorption at 880nm |
| Replicate information: | none |
| Uncertainty: | 0.06 micro-mol per liter |
| Quality flag convention: | WOCE flags: 2=acceptable; 3=questionable; 4=bad; 6=mean of replicates;9=missing |
| Method reference: | Grasshoff, K. (1965) On the Automatic Determination of Phosphate, Silicate and Fluoride in Seawater. ICES Hydrographic Committee Report No. 129 |
| Researcher name: | Linda Fonnes Lunde |
| Researcher institution: | Institute of Marine Research |
| silicate | |
|---|---|
| Abbreviation: | SILCAT |
| Unit: | micro-mol per kg |
| Observation type: | profile |
| Sampling instrument: | niskin |
| Analyzing instrument: | Skalar autoanalyser |
| Detailed sampling and analyzing information: | Samples were taken in plastic containers, poisoned with chloroform and kept refridgerated until analysis after the cruise. Spectrophotometric analysis of absorption at 810nm |
| Replicate information: | none |
| Uncertainty: | 0.7 micro-mol per liter |
| Quality flag convention: | WOCE flags: 2=acceptable; 3=questionable; 4=bad; 6=mean of replicates;9=missing |
| Method reference: | Grasshoff, K. (1965) On the Automatic Determination of Phosphate, Silicate and Fluoride in Seawater. ICES Hydrographic Committee Report No. 129 |
| Researcher name: | Linda Fonnes Lunde |
| Researcher institution: | Institute of Marine Research |
| CFC-12 | |
|---|---|
| Abbreviation: | CFC12 |
| Unit: | pmol/kg |
| Observation type: | profile |
| Sampling instrument: | niskin |
| Analyzing instrument: | purge and trap with gas chromatograph |
| Detailed sampling and analyzing information: | Samples were drawn from niskin bottles and analyzed immediately |
| Uncertainty: | 2% or 0.004 pmol kg-1 |
| Quality flag convention: | WOCE flags: 2=acceptable; 3=questionable; 4=bad; 6=mean of replicates;9=missing |
| Method reference: | Bullister and Tanhua |
| Researcher name: | Meike Becker |
| Researcher institution: | University of Bergen |
| SF6 | |
|---|---|
| Abbreviation: | SF6 |
| Unit: | fmol/kg |
| Observation type: | profile |
| Sampling instrument: | niskin |
| Analyzing instrument: | purge and trap with gas chromatograph |
| Detailed sampling and analyzing information: | Samples were drawn from niskin bottles and analyzed immediately |
| Uncertainty: | 3% or 0.03 fmol kg-1 |
| Quality flag convention: | WOCE flags: 2=acceptable; 3=questionable; 4=bad; 6=mean of replicates;9=missing |
| Method reference: | Bullister and Tanhua |
| Researcher name: | Meike Becker |
| Researcher institution: | University of Bergen |
| dissolved oxygen in seawater | |
|---|---|
| Abbreviation: | CTDOXY |
| Unit: | micro-mol per kg |
| Observation type: | profile |
| Sampling instrument: | SeaBird SBE 43 |
| Analyzing instrument: | NA |
| Detailed sampling and analyzing information: | NA |
| Replicate information: | NA |
| Uncertainty: | unknown, data have not been calibrated with bottle data nor quality controlled, however crossovers with GLODAPv2.2019 data indicate these data are biased low by ~6% (below 1900m) |
| Quality flag convention: | NA |
| Method reference: | NA |
| Researcher name: | NA |
| Researcher institution: | NA |
| salinity | |
|---|---|
| Abbreviation: | CTDSAL |
| Unit: | NA |
| Observation type: | profile |
| Sampling instrument: | SeaBird CTD |
| Analyzing instrument: | NA |
| Detailed sampling and analyzing information: | NA |
| Replicate information: | NA |
| Uncertainty: | unknown, data have not been calibrated with bottle data |
| Quality flag convention: | WOCE flags: 2=acceptable; 3=questionable; 4=bad; 6=mean of replicates;9=missing |
| Method reference: | NA |
| Researcher name: | NA |
| Researcher institution: | NA |
PUBLICATIONS DESCRIBING THIS DATASET:
none;
ADDITIONAL INFORMATION:
These data should be acknowledged with: "Siv K Lauvset, Meike Becker, Kristin Jackson-Misje, Linda Fonnes Lunde (2020) Chemistry data on 58JH20190515 https://doi.org/10.21335/NMDC-2017470118"
FUNDING:
Research Council of Norway
PROJECT TITLE:
NorArgo2
PROJECT ID:
SUBMITTED BY: Siv K. Lauvset (sivk@norceresearch.no)
SUBMISSION DATE: 2021-06-17
