Partial pressure (or fugacity) of carbon dioxide, temperature, and other variables collected from surface underway observations using carbon dioxide gas analyzer, shower head equilibrator and other instruments from SOOP M/V Nuka Arctica lines in the North Atlantic Ocean from 2008-01-08 to 2009-01-07 (NCEI Accession 0162251)
- University of Bergen; Geophysical Institute (GFI)PACKAGE DESCRIPTION: This dataset includes Surface underway, chemical, meteorological and physical data collected from SOOP M/V Nuka Arctica lines in the North Atlantic Ocean from 2008-01-08 to 2009-01-07. These data include measurements of mole fraction of 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 carbon dioxide (CO2) measurement. These data were collected by Are Olsen and Truls Johannessen of University of Bergen, Bjerknes Centre for Climate Research, Norway and Sara Jutterström of University of Gothenburg, Sweden. The dataset consists of 29 cruise data sets.
CITE AS: Olsen, Are; Jutterström, Sara; Johannessen, Truls (2017). Partial pressure (or fugacity) of carbon dioxide, temperature, and other variables collected from surface underway observations using carbon dioxide gas analyzer, shower head equilibrator and other instruments from SOOP M/V Nuka Arctica lines in the North Atlantic Ocean from 2008-01-08 to 2009-01-07 (NCEI Accession 0162251). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v52b8w73. Accessed [date].
none;
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 2.5 L/min |
| Gas flow rate: | 80 mL/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: | +/- 2 uatm |
| SEA CO2 gas detector uncertainty: | +/- 1 uatm |
| Standard gas manufacturer: | NOAA calibrated May 21 2008. |
| 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: | Sara Jutterström |
| Researcher institution: | University of Gothenburg |
| Sea Surface Temperature | |
|---|---|
| Abbreviation: | SST_C |
| Unit: | degrees celcius |
| Observation type: | Surface Underway |
| Analyzing instrument: | Probe: 5610, thermometer:1521, Intake temperature sensor, Hart Scientific |
| Detailed sampling and analyzing information: | In Bow Thruster room, about 1m after the intake which is directly through the ship's hull, before the SW pump |
| Uncertainty: | (+/-) 0.01C |
| Researcher name: | Sara Jutterström |
| Researcher institution: | University of Gothenburg |
| Equilibrator Temperature | |
|---|---|
| Abbreviation: | EQ_TMP |
| Unit: | Deg. C |
| Observation type: | Surface Underway |
| Analyzing instrument: | Probe: 5610, thermometer:1521 |
| 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: | Sara Jutterström |
| Researcher institution: | University of Gothenburg |
| 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: | Sara Jutterström |
| Researcher institution: | University of Gothenburg |
SUBMITTED BY: Are Olsen (Are.Olsen@gfi.uib.no)
SUBMISSION DATE: 2014-08-10
