Carbon dioxide, hydrographic, and chemical discrete profile data obtained during the R/V N.B. Palmer cruise in the South Pacific Ocean on GO-SHIP/CLIVAR/SOCCOM Repeat Hydrography Sections P06W (EXPOCODE 320620170703) and P06E (EXPOCODE 320620170820) from 2017-07-03 to 2017-09-30 (NCEI Accession 0175744)
INVESTIGATORS:
Kevin G. Speer
- IFREMER
Lena M. Schulze
- Florida State University (FSU)
Rik Wanninkhof 
- NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML)
- NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML)
Frank J. Millero
- Rosenstiel School of Marine and Atmospheric Science (RSMAS)
James H. Swift
- Scripps Institution of Oceanography (SIO)
Craig A. Carlson
- University of California - Santa Barbara (UCSB)
- University of California - Santa Barbara (UCSB)
Robert M. Key
- Princeton University
Carmen Rodriguez
- Rosenstiel School of Marine and Atmospheric Science (RSMAS)
PACKAGE DESCRIPTION: This dataset includes discrete bottle measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, partial pressure of CO2, dissolved organic carbon (DOC), CFCs, temperature, salinity, oxygen, nutrients, and other variables measured during R/V N.B. Palmer cruise in the South Pacific Ocean on GO-SHIP/CLIVAR/SOCCOM Repeat Hydrography Sections P06W (EXPOCODE 320620170703) and P06E (EXPOCODE 320620170820) from 2017-07-03 to 2017-09-30. The Pacific Ocean P06 repeat hydrographic line was reoccupied for the US Global Ocean Carbon and Repeat Hydrography Program. Reoccupation of the P06E transect occurred on the RVIB Nathaniel B Palmer from August 20, 2017 to September 30, 2017. The survey of P06 2017 consisted of CTDO, rosette, LADCP, chipod, water samples and underway measurements. The ship departed from the port of Papeete on the island of Tahiti, French Polynesia and completed the cruise in the port of Valparaiso, Chile.
CITE AS: Speer, Kevin G.; Schulze, Lena M.; Swift, James H.; Wanninkhof, Rik; Feely, Richard A.; Millero, Frank J.; Rodriguez, Carmen; Carlson, Craig A.; Key, Robert M.; McNichol, Ann; Fine, Rana A.; Boss, Emmanuel; Riser, Stephen C. (2018). Carbon dioxide, hydrographic, and chemical discrete profile data obtained during the R/V N.B. Palmer cruise in the South Pacific Ocean on GO-SHIP/CLIVAR/SOCCOM Repeat Hydrography Sections P06W (EXPOCODE 320620170703) and P06E (EXPOCODE 320620170820) from 2017-07-03 to 2017-09-30 (NCEI Accession 0175744). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/3bmf-xc16. Accessed [date].
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0175744
NCEI DOI: https://doi.org/10.25921/3bmf-xc16
EXPOCODE: 320620170703;
320620170820;
CRUISE ID: P06E_2017;
P06W_2017;
SECTION/LEG: GO-SHIP P06;
TYPES OF STUDY:
Discrete measurement;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
Discrete measurement;
TEMPORAL COVERAGE:
START DATE: 2017-07-03
END DATE: 2017-09-30
SPATIAL COVERAGE:
NORTH: -28.9597
WEST: 152.9
EAST: -71.585
SOUTH: -32.5051
GEOGRAPHIC NAMES:
South Pacific Ocean;
PLATFORMS:
R/V Nathaniel B Palmer (ID: 3206);
RESEARCH PROJECT(S):
none;
VARIABLES / PARAMETERS:
| Dissolved Inorganic Carbon | |
|---|---|
| Abbreviation: | TCARBN |
| Unit: | UMOL/KG |
| Observation type: | Discrete, bottle |
| Measured or calculated: | Measured |
| Sampling instrument: | CDT Bottles |
| Analyzing instrument: | Coulometric measurement system (SOMMA) |
| Detailed sampling and analyzing information: | The analysis was done by coulometry with two analytical systems (PMEL 1 and PMEL2) used simultaneously on the cruise. Each system consisted of a coulometer (CM5015-O UIC Inc) coupled with a Dissolved Inorganic Carbon Extractor (DICE). DICE system was developed by Esa Peltola and Denis Pierrot of NOAA/AOML and Dana Greeley of NOAA/PMEL to modernize a carbon extractor called SOMMA ([Johnson1985], [Johnson1987], [Johnson1993], [Johnson1992], [Johnson1999]). |
| Standardization description: | Injection of 2 pairs of sample loops of known volume of pure CO2 bracketing the expected values of TCO2 and analysis of Certified Reference Materials supplied by Dr. A Dickson of SIO. TCO2 values were corrected for the addition of mercuric chloride and for the offset from the CRM value. |
| CRM manufacturer: | Andrew Dickson Laboratory at SIO |
| CRM batch number: | B165, B166 |
| Preservation method: | mercuric chloride solution |
| Preservative volume: | 100 mL |
| Uncertainty: | The accuracy of the DICE measurement is determined with the use of standards (Certified Reference Materials (CRMs), consisting of filtered and UV irradiated seawater) supplied by Dr. A. Dickson of Scripps Institution of Oceanography (SIO). The CRM accuracy is determined manometrically on land in San Diego and the DIC data re- ported to the data base have been corrected to this batch 165 CRM value. The CRM certified value for this batch is 2064.33 μmol/kg. |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Method reference: | Johnson, K., Wills, K., Butler, D., Johnson, W., and Wong, C.: Coulometric total carbon dioxide analysis for marine studies: maximizing the performance of an automated gas extraction system and coulometric detector, Mar. Chem., 44, 167-187, https://doi.org/10.1016/0304-4203(93)90201-X, 1993. 2193. |
| Researcher name: | Rik Wanninkhof, Dick Feely |
| Researcher institution: | AOML, PMEL |
| Total alkalinity | |
|---|---|
| Abbreviation: | ALKALI |
| Unit: | UMOL/KG |
| Observation type: | Discrete, bottle |
| Measured or calculated: | Measured |
| Sampling instrument: | CTD Bottles |
| Analyzing instrument: | One custom open cell titrator |
| Type of titration: | ~0.1M HCl in ~0.6M NaCl solution |
| Cell type (open or closed): | open |
| Curve fitting method: | Levenberg-Marquardt nonlinear least-squares algorithm |
| Replicate information: | Duplicates samples from the same niskin were measured at each station, 6.8% of samples. The absolute standard deviations of duplicates were 0.95 umol/kg. |
| Standardization description: | CRM |
| Standardization frequency: | every other station |
| CRM manufacturer: | Andrew Dickson, Scripps Institute of Oceanography |
| CRM batch number: | B165, B166 |
| Preservation method: | Saturated HgCl2 |
| Preservative volume: | ~ 0.12ml |
| Uncertainty: | +/- 1.95 umol/kg based on CRM measurements and duplicates |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Method reference: | Dickson, A. G., C. L. Sabine, and J. R. Christian (2007), Guide to best practices for ocean CO2 Measurements, PICES Special Publication, Sidney, BC Canada. |
| Researcher name: | Ryan Woosley |
| Researcher institution: | RSMAS, University of Miami |
| DOC | |
|---|---|
| Abbreviation: | Dissolved Organic Carbon |
| Unit: | UMOL/KG |
| Observation type: | Bottle, discrete |
| Sampling instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Craig A. Carlson |
| Researcher institution: | University of California, Santa Barbara |
| CTD Temperature | |
|---|---|
| Abbreviation: | CTDTMP |
| Unit: | degrees celcius |
| Observation type: | CTD sensor |
| Sampling instrument: | CTD |
| Analyzing instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Kristene McTaggart |
| Researcher institution: | PMEL |
| CTD Salinity | |
|---|---|
| Abbreviation: | CTDSAL |
| Observation type: | CTD sensor |
| Sampling instrument: | CTD |
| Analyzing instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Jim Swift |
| Researcher institution: | SIO |
| Bottle Salinity | |
|---|---|
| Abbreviation: | SALNTY |
| Observation type: | Bottle, discrete |
| Sampling instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Jim Swift |
| Researcher institution: | SIO |
| CTD Oxygen | |
|---|---|
| Abbreviation: | CTDOXY |
| Unit: | UMOL/KG |
| Observation type: | CTD sensor |
| Sampling instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Jim Swift |
| Researcher institution: | SIO |
| Bottle Oxygen | |
|---|---|
| Abbreviation: | OXYGEN |
| Unit: | UMOL/KG |
| Observation type: | Bottle, discrete |
| Sampling instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Jim Swift |
| Researcher institution: | SIO |
| Nutrients | |
|---|---|
| Abbreviation: | SILCAT, NITRAT, NITRIT PHSPHT |
| Unit: | UMOL/KG |
| Observation type: | Bottle, discrete |
| Sampling instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Jim Swift |
| Researcher institution: | SIO |
| Chlorofluorocarbon | |
|---|---|
| Abbreviation: | CFCs/SF6 |
| Unit: | PMOL/KG |
| Observation type: | Bottle, discrete |
| Sampling instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Rana Fine |
| Researcher institution: | RSMAS, University of Miami |
| Dissolved Organic Carbon | |
|---|---|
| Abbreviation: | DOC |
| Unit: | UMOL/KG |
| Observation type: | Bottle, discrete |
| Sampling instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Craig Carson |
| Researcher institution: | University of California Santa Barbara |
| Total Dissolved Nitrogen | |
|---|---|
| Abbreviation: | TDN |
| Unit: | UMOL/KG |
| Observation type: | Bottle, discrete |
| Sampling instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Craig Carson |
| Researcher institution: | University of California Santa Barbara |
PUBLICATIONS DESCRIBING THIS DATASET:
Johnson, K. M., A. Körtzinger, L. Mintrop, J. C. Duinker, and D. W. R. Wallace. 1999. “Coulometric total carbon dioxide analysis for marine studies: Measurement and internal consistency of underway surface TCO2 concentrations.” Marine Chemistry 67:123-44.
Dickson, A. G., C. L. Sabine, and J. R. Christian (2007), Guide to best practices for ocean CO2 Measurements, PICES Special Publication, Sidney, BC Canada.
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
Clayton, T.D., and R.H. Byrne, 1993: Spectrophotometric seawater pH measurements: Total hydrogen ion concentration scale calibration of m-cresol purple and at-sea results. Deep-Sea Res., 40, 2315-2329.Liu, X., M.C. Patsavas, and R.H. Byrne, 2011: Purification and Characterization of meta-Cresol Purple for Spectrophotometric Seawater pH Measurements, Envir. Sci and Tech., 45, 4862-4868. https:/doi.org/10.1021/es2006665d
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:
NSF, NOAA
PROJECT TITLE:
Repeat Hydrography Sections Observations
PROJECT ID:
SUBMITTED BY: Robert M. Key (key@princeton.edu)
SUBMISSION DATE: 2018-08-29
REVISION DATE: 2021-01-29
PREVIOUS VERSIONS: Version 1.1
