Partial pressure of carbon dioxide, temperature, salinity and other variables collected from surface underway observations during the ship of opportunity (SOOP) M/V Nuka Arctica cruises in the North Atlantic Ocean in 2017 (NCEI Accession 0173654)
- University of Bergen; Geophysical Institute (GFI)
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, GermanyPACKAGE DESCRIPTION: This dataset includes surface underway chemical, meteorological and physical data collected from the ship of opportunity (SOOP) M/V Nuka Arctica cruises in the North Atlantic Ocean from 2016-12-29 to 2017-12-27. These data include measurements of mole fraction of carbon dioxide (CO2) in the equilibrator headspace (dry) at equilibrator temperature, mole fraction of CO2 measured in dry outside air, barometric pressure in the equilibrator headspace, water temperature in equilibrator, sea surface temperature, and fugacity of CO2 in sea water at SST and 100% humidity. The instruments used to collect these data include carbon dioxide (CO2) gas analyzer and shower head chamber equilibrator for autonomous CO2 measurement. These data were collected by Are Olsen and Meike Becker of University of Bergen, Bjerknes Centre for Climate Research, Norway.
CITE AS: Olsen, Are; Becker, Meike (2018). Partial pressure of carbon dioxide, temperature, salinity and other variables collected from surface underway observations during the ship of opportunity (SOOP) M/V Nuka Arctica cruises in the North Atlantic Ocean in 2017 (NCEI Accession 0173654). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5td9vpd. Accessed [date].
Surface measurement;Surface underway;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
VARIABLES / PARAMETERS:
| pCO2 (fCO2) autonomous | |
|---|---|
| Abbreviation: | fCO2_SW@SST |
| Unit: | uatm |
| Observation type: | Surface underway |
| Measured or calculated: | Measured |
| Sampling instrument: | Seawater pump |
| Location of seawater intake: | Bow |
| Analyzing instrument: | Infrared Analyzer: LI-COR model 6262 |
| Detailed sampling and analyzing information: | Infrared analysis of headspace in equilibrium with flowing seawater |
| Equilibrator type: | two stage showerhead |
| Equilibrator volume: | approx 0.5 (vent equ) and 2 to 2.5 (main equ) |
| Is the equilibrator vented or not: | Vented |
| Water flow rate: | approx 2 to 3.5 L/min |
| Gas flow rate: | 0.08 L/min |
| Drying method for gas: | Gas stream passes through a thermoelectric condenser (~5 C) and then through a Perma Pure (Nafion) dryer before reaching the analyzer (90% dry). |
| SEA CO2 gas detector manufacturer: | Licor, Inc |
| SEA CO2 gas detector model: | Licor 6262 |
| SEA CO2 gas detector resolution: | +/- 0.2 uatm |
| SEA CO2 gas detector uncertainty: | +/- 1 uatm |
| Standard gas manufacturer: | Primary Standards: NOAA/CMDL, working standards: YARA |
| Standard gas concentration: | Traceable to the WMO-X93 scale. Primary standards from NOAA calibrated May 21 2008. One zero gas and three standards at approx 192 388 and 440 ppm |
| At what temperature was pCO2 reported: | In situ sea surface temperature |
| Uncertainty: | 0.01C |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Method reference: | Wanninkhof and Thoning, Marine Chemistry 44, 189-205, 1993 |
| Researcher name: | Are Olsen |
| Researcher institution: | University of Bergen, Bjerknes Centre for Climate Research |
| Sea Surface Temperature | |
|---|---|
| Abbreviation: | SST_C |
| Unit: | degrees celcius |
| Observation type: | Surface Underway |
| Sampling instrument: | Intake temperature sensor, Hart Scientific |
| Analyzing instrument: | Probe: 5610-9, thermometer:1524 |
| Detailed sampling and analyzing information: | Factory calibrated against a NIST tracable thermometer. Regular zero point calibrations as well as checks against equilibrator thermometer |
| Uncertainty: | (+/-) 0.01C |
| Researcher name: | Are Olsen |
| Researcher institution: | University of Bergen, Bjerknes Centre for Climate Research |
| Equilibrator Temperature | |
|---|---|
| Abbreviation: | EQ_TMP |
| Unit: | Deg. C |
| Observation type: | Surface Underway |
| Sampling instrument: | Intake temperature sensor, Hart Scientific |
| Analyzing instrument: | Probe: 5610-9, thermometer:1524 |
| Detailed sampling and analyzing information: | Factory calibrated against a NIST tracable thermometer. Regular zero point calibrations and well as checks against intake thermometer. |
| Uncertainty: | (+/-) 0.01C |
| Researcher name: | Are Olsen |
| Researcher institution: | University of Bergen, Bjerknes Centre for Climate Research |
| Equilibrator Pressure | |
|---|---|
| Abbreviation: | EQ_PRE |
| Unit: | hPa |
| Sampling instrument: | Equilibrator pressure, this is measured differentially using a Setra 239 sensor. The given equilibrator pressure is sum of this and the Licor cell pressure (recorded by 6262-03 Pressure Transducer) |
| Uncertainty: | 1. +/-0.05 (Setra) and 2. +/-0.45 (Licor), gives total +/-0.453 hPa |
| Researcher name: | Are Olsen |
| Researcher institution: | University of Bergen, Bjerknes Centre for Climate Research |
SUBMITTED BY: Are Olsen (Are.Olsen@gfi.uib.no)
SUBMISSION DATE: 2018-06-06
