Partial pressure of carbon dioxide, temperature, salinity and other variables collected from surface underway observations during Ships of Opportunity (SOOP) M/V Celebrity Equinox cruise lines in the Caribbean Sea, Gulf of Mexico, and North Atlantic Ocean in 2019 (NCEI Accession 0184597)
INVESTIGATORS:
Rik Wanninkhof 
- NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML)
- NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML)
Denis Pierrot
- NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML)
- NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML)
Kevin F. Sullivan
- NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML)
PACKAGE DESCRIPTION: This dataset consists of the surface underway measurements of mole fraction of CO2 in the equilibrator headspace (dry) at equilibrator temperature (ppm), mole fraction of CO2 measured in dry outside air (ppm), mole fraction of CO2 in outside air associated with each water analysis. These values are interpolated between the bracketing averaged good xCO2_ATM analyses (ppm), barometric pressure in the equilibrator headspace (hPa), barometric pressure measured outside, corrected to sea level (hPa), water temperature in equilibrator (°C), sea surface temperature (°C), sea surface salinity, fugacity of CO2 in sea water at SST and 100% humidity (μatm), fugacity of CO2 in air corresponding to the interpolated xCO2 at SST and 100% humidity (μatm), sea water fCO2 minus interpolated air fCO2 (μatm). The measurement were performed during the SOOP M/V Celebrity Equinox cruises in the Caribbean Sea, Gulf of Mexico and North Atlantic Ocean from 2019-01-05 to 2020-01-04.
CITE AS: Wanninkhof, Rik; Sullivan, Kevin F.; Pierrot, Denis (2019). Partial pressure of carbon dioxide, temperature, salinity and other variables collected from surface underway observations during Ships of Opportunity (SOOP) M/V Celebrity Equinox cruise lines in the Caribbean Sea, Gulf of Mexico, and North Atlantic Ocean in 2019 (NCEI Accession 0184597). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/9f8z-hn96. Accessed [date].
DATA PACKAGES RELATED TO THIS ONE:
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0184597
NCEI DOI: https://doi.org/10.25921/9f8z-hn96
EXPOCODE: MLCE20190105;
MLCE20190112;
MLCE20190119;
MLCE20190126;
MLCE20190202;
MLCE20190209;
MLCE20190216;
MLCE20190223;
MLCE20190302;
MLCE20190309;
MLCE20190316;
MLCE20190323;
MLCE20190330;
MLCE20190406;
MLCE20190413;
MLCE20190420;
MLCE20190629;
MLCE20190706;
MLCE20190713;
MLCE20190720;
MLCE20190727;
MLCE20190803;
MLCE20190810;
MLCE20190817;
MLCE20190824;
MLCE20190831;
MLCE20190907;
MLCE20190913;
MLCE20190923;
MLCE20191004;
MLCE20191014;
MLCE20191025;
MLCE20191102;
MLCE20191109;
MLCE20191116;
MLCE20191123;
MLCE20191130;
MLCE20191207;
MLCE20191214;
MLCE20191221;
MLCE20191228;
CRUISE ID: EQNX_20190105;
EQNX_20190112;
EQNX_20190119;
EQNX_20190126;
EQNX_20190202;
EQNX_20190209;
EQNX_20190216;
EQNX_20190223;
EQNX_20190302;
EQNX_20190309;
EQNX_20190316;
EQNX_20190323;
EQNX_20190330;
EQNX_20190406;
EQNX_20190413;
EQNX_20190420;
EQNX_20190629;
EQNX_20190706;
EQNX_20190713;
EQNX_20190720;
EQNX_20190727;
EQNX_20190803;
EQNX_20190810;
EQNX_20190817;
EQNX_20190824;
EQNX_20190831;
EQNX_20190907;
EQNX_20190913;
EQNX_20190923;
EQNX_20191004;
EQNX_20191014;
EQNX_20191025;
EQNX_20191102;
EQNX_20191109;
EQNX_20191116;
EQNX_20191123;
EQNX_20191130;
EQNX_20191207;
EQNX_20191214;
EQNX_20191221;
EQNX_20191228;
SECTION/LEG: AOML_SOOP_CO2;
TYPES OF STUDY:
Surface underway;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
Surface underway;
TEMPORAL COVERAGE:
START DATE: 2019-01-05
END DATE: 2020-01-04
SPATIAL COVERAGE:
NORTH: 26.6
WEST: -87.71
EAST: -59.6
SOUTH: 11.6
GEOGRAPHIC NAMES:
Atlantic Ocean;Caribbean Sea;Gulf of Mexico;
PLATFORMS:
M/V Celebrity Equinox (ID: MLCE);
RESEARCH PROJECT(S):
Ship Of Opportunity Program (SOOP);
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: | Pierrot, D., Neill, C., Sullivan, K., Castle, R., Wanninkhof, R., Lüger, H., Johannessen, T., Olsen, A., Feely, R. A., & Cosca, C. E. (2009). Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines. Deep Sea Research Part II: Topical Studies in Oceanography, 56(8-10), 512-522. https://doi.org/10.1016/j.dsr2.2008.12.005 |
| Equilibrator type: | Spray head above dynamic pool, with thermal jacket |
| Equilibrator volume: | 0.95 L (0.4 L water, 0.55 L headspace) |
| Is the equilibrator vented or not: | Vented |
| Water flow rate: | 1.5 - 2.0 L/min |
| Gas flow rate: | 70 - 150 ml/min |
| How was temperature inside the equilibrator measured: | Hart Scientific model 1523 digital thermometer |
| How was pressure inside the equilibrator measured: | External Setra 270 connected to the exit of the analyzer |
| 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: | Accuracy: +/- 2 uatm in fCO2_SW |
| SEA CO2 gas detector uncertainty: | Precision: +/- 0.01 uatm in fCO2_SW |
| Standardization technique: | The system runs a full cycle in approximately 7 hours. The cycle starts with 4 standard gases, then measures three rounds of 6 atmopherice samples followed by 50 surface water samples. Each new gas is flushed through the Licor Analyzer for 2 minutes prior to a stop-flow measurement. |
| Standardization frequency: | Every 7 hours |
| Standard gas manufacturer: | Standard gases are supplied by NOAA Earth System Research Laboratory, Global Monitoring Division, in Boulder, CO, and are directly traceable to the WMO scale. |
| Standard gas concentration: | Std 1: CA05585, 280.18 ppm, owned by ESRL, used every ~5.0 hours. Std 2: CA06368, 328.12 ppm, owned by ESRL, used every ~5.0 hours. Std 3: CA05979, 381.89 ppm, owned by AOML, used every ~5.0 hours. Std 4: CB08988, 455.60 ppm, owned by ESRL, used every ~5.0 hours. Std 5: LL100000, 0.00 ppm, owned by AOML, used every ~24.5 hours. |
| Standard gas uncertainty: | 0.01 ppm |
| Water vapor correction method: | Details of the data reduction are described in Pierrot, et.al. (2009). |
| Temperature correction method: | Details of the data reduction are described in Pierrot, et.al. (2009). |
| 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: | Pierrot, D., Neill, C., Sullivan, K., Castle, R., Wanninkhof, R., Lüger, H., Johannessen, T., Olsen, A., Feely, R. A., & Cosca, C. E. (2009). Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines. Deep Sea Research Part II: Topical Studies in Oceanography, 56(8-10), 512-522. https://doi.org/10.1016/j.dsr2.2008.12.005 |
| Researcher name: | Denis Pierrot |
| Researcher institution: | NOAA/AOML |
| Sea Surface Temperature | |
|---|---|
| Abbreviation: | SST_C |
| Unit: | degrees celcius |
| Observation type: | Surface Underway |
| Analyzing instrument: | SBE 38, Seabird, Inc. |
| 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: | Accuracy: 0.001C, Precision: 0.0003C |
| Researcher name: | Maintained by University of Miami's MTG group |
| Researcher institution: | University of Miami |
| Sea Surface Salinity | |
|---|---|
| Abbreviation: | SAL_permil |
| Observation type: | Surface Underway |
| Analyzing instrument: | SBE 45, Seabird, Inc. |
| Uncertainty: | Accuracy: +/- 0.005; Precision: 0.0002 |
| Researcher name: | Maintained by University of Miami's MTG group |
| Researcher institution: | University of Miami |
| Atmospheric Pressure | |
|---|---|
| Abbreviation: | PRES_ATM@SSP_hPa |
| Unit: | hPa |
| Sampling instrument: | Vaisala, WXT520 |
| Uncertainty: | Accuracy: +/- 0.5 hPa; Precision: 0.1 hPa |
| Researcher name: | Maintained by University of Miami's MTG group |
| Researcher institution: | University of Miami |
PUBLICATIONS DESCRIBING THIS DATASET:
Pierrot, D., Neill, C., Sullivan, K., Castle, R., Wanninkhof, R., Lüger, H., Johannessen, T., Olsen, A., Feely, R. A., & Cosca, C. E. (2009). Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines. Deep Sea Research Part II: Topical Studies in Oceanography, 56(8-10), 512-522. https://doi.org/10.1016/j.dsr2.2008.12.005
Feely, R.A., R. Wanninkhof, H.B. Milburn, C.E. Cosca, M. Stapp, and P.P. Murphy. A new automated underway system for making high precision pCO2 measurements onboard research ships, Analytica Chim. Acta, 377, 185-191, 1998.
Wanninkhof, R., & Thoning, K. (1993). Measurement of fugacity of CO2 in surface water using continuous and discrete sampling methods. Marine Chemistry, 44(2–4), 189–204. https://doi.org/10.1016/0304-4203(93)90202-y
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:
NOAA Climate Program Office Program
PROJECT TITLE:
Surface Water pCO2 Measurements from Ships of Opportunity (SOOP)
PROJECT ID:
SUBMITTED BY: Kevin F. Sullivan (Kevin.Sullivan@noaa.gov)
SUBMISSION DATE: 2019-02-13
REVISION DATE: 2020-01-17
PREVIOUS VERSIONS: Version 1.1Version 2.2Version 3.3Version 4.4Version 5.5Version 6.6Version 7.7Version 8.8
