Partial pressure of carbon dioxide, temperature, salinity and other variables collected from the surface underway observations using carbon dioxide gas analyzer, shower head equilibrator and other instruments from R/V Savannah in the North Atlantic Ocean, US East coast during the Georgia Coastal Ecosystems Long Term Ecological Research Cruises from 2014-04-02 to 2016-04-21 (NCEI Accession 0167308)
- University of DelawarePACKAGE DESCRIPTION: This dataset includes surface underway chemical, and physical data collected from R/V Savannah in the North Atlantic Ocean, US East coast from 2014-04-02 to 2016-04-21. These data include measurements of partial pressure of carbon dioxide (pCO2) in the equilibrator headspace (dry) at equilibrator temperature, barometric pressure in the equilibrator headspace, water temperature in equilibrator, sea surface temperature and sea surface salinity. 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 Wei-Jun Cai and Janet J. Reimer of University of Delaware as part of R/V Savannah Georgia Coastal Ecosystems Long Term Ecological Research Cruises.
CITE AS: Cai, Wei-Jun; Reimer, Janet J. (2017). Partial pressure of carbon dioxide, temperature, salinity and other variables collected from the surface underway observations using carbon dioxide gas analyzer, shower head equilibrator and other instruments from R/V Savannah in the North Atlantic Ocean, US East coast during the Georgia Coastal Ecosystems Long Term Ecological Research Cruises from 2014-04-02 to 2016-04-21 (NCEI Accession 0167308). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v547483x. Accessed [date].
none;
Surface underway;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
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| pCO2 (fCO2) autonomous | |
|---|---|
| Abbreviation: | pCO2 |
| Unit: | uatm |
| Observation type: | Surface underway |
| Measured or calculated: | Measured values xCO2(dry) |
| Sampling instrument: | sea water intake |
| Location of seawater intake: | Wet lab |
| Analyzing instrument: | Equilibrator-IR or CRDS or GC |
| Equilibrator type: | Spray/shower |
| Equilibrator volume: | 1 L |
| Is the equilibrator vented or not: | Vented |
| Water flow rate: | 2.0 L/min |
| Gas flow rate: | 95 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 7000 |
| SEA CO2 gas detector resolution: | 0.02 ppm |
| SEA CO2 gas detector uncertainty: | 0.01 ppm |
| Standardization technique: | The analyzer is calibrated every 4.3 hours with field standards that in turn were calibrated with primary standards that are directly traceable to the WMO scale. The zero gas is ultra-high purity air. |
| Standardization frequency: | Every 4.3 hours |
| Standard gas manufacturer: | Scott-Marrin, Inc. |
| Standard gas concentration: | System was calibrated approximately every three hours. The gas is manufactured by Keen and the values of the standards are 151.5, 395.4, and 1969 |
| Standard gas uncertainty: | 0.01 ppm |
| At what temperature was pCO2 reported: | In situ sea surface temperature |
| Uncertainty: | 0.01C |
| Researcher name: | Janet J. Reimer |
| Researcher institution: | University of Delaware |
| Sea Surface Temperature | |
|---|---|
| Abbreviation: | Equili_T(C) |
| Unit: | degrees celcius |
| Observation type: | Temperature was measured within the equilibrator |
| Detailed sampling and analyzing information: | After sea water pump, ~4.5 m below sea surface |
| Uncertainty: | Accuracy: 0.001C, Precision: 0.001C |
| Researcher name: | Kevin Sullivan |
| Researcher institution: | NOAA/AOML |
| Sea Surface Salinity | |
|---|---|
| Abbreviation: | SAL |
| Observation type: | Surface Underway |
| Analyzing instrument: | SBE 45, Seabird, Inc. |
| Uncertainty: | Precision: 0.01 |
| Researcher name: | Kevin Sullivan |
| Researcher institution: | NOAA/AOML |
SUBMITTED BY: Wei-Jun Cai (wcai@udel.edu)
SUBMISSION DATE: 2017-10-11
