Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and HYDROSTATIC PRESSURE collected from discrete sample and profile observations using CTD, bottle and other instruments from the SEWARD JOHNSON in the North Atlantic Ocean from 2003-04-18 to 2003-05-22 (NCEI Accession 0113596)
PACKAGE DESCRIPTION: This dataset includes chemical, discrete sample, physical and profile data collected from SEWARD JOHNSON in the North Atlantic Ocean from 2003-04-18 to 2003-05-22 and retrieved during cruise 33SW20030418 and MP-8 Cruise. These data include ALKALINITY, DISSOLVED INORGANIC CARBON, HYDROSTATIC PRESSURE, SALINITY, WATER TEMPERATURE and pH. The instruments used to collect these data include CTD and bottle. These data were collected by Patricia L. Yager of University of Georgia; School of Marine Programs and D. Capone and A. Subramaniam [affiliation unknown] as part of the CARINA/33SW20030418 data set. The CARINA (CARbon dioxide IN the Atlantic Ocean) data synthesis project is an international collaborative effort of the EU IP CARBOOCEAN, and U.S. partners. It has produced a merged internally consistent dataset of open ocean subsurface measurements for biogeochemical investigations, in particular, studies involving the carbon system. The original focus area was the North Atlantic Ocean, but over time the geographic extent expanded and CARINA now includes data from the entire Atlantic, the Arctic Ocean, and the Southern Ocean.
CITE AS: Yager, Patricia L.; Subramaniam, Ajit; Capone, Douglas G. (2013). Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and HYDROSTATIC PRESSURE collected from discrete sample and profile observations using CTD, bottle and other instruments from the SEWARD JOHNSON in the North Atlantic Ocean from 2003-04-18 to 2003-05-22 (NCEI Accession 0113596). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.carina_33sw20030418. Accessed [date].
none;
Discrete measurement;Profile;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
VARIABLES / PARAMETERS:
| Dissolved Inorganic Carbon | |
|---|---|
| Abbreviation: | DIC |
| Observation type: | discrete |
| In-situ / Manipulation / Response variable: | In-situ observation |
| Measured or calculated: | Calculated |
| Detailed sampling and analyzing information: | Measured at UGA laboratory using a SOMMA (Single Operator Multi-Metabolic Analyzer) connected to a CO2 coulometer (UIC, Inc) interfaced to a PC. See Johnson et al., 1993; 1998. |
| Standardization description: | The instrument was first calibrated using a standard CO2 gas (99.999%). Certified Reference Material (Dickson 2001) was run twice at the start of every day, after every ten samples, and at the end of the day. Unless daily drift was detected (rare), the we computed the average CRM for the day, calculated the ratio of the expected CRM value to the measured value, and multiplied all the data by this ratio. In the rare case of drift, we corrected to the nearest CRM. |
| CRM batch number: | 58 64 |
| Total alkalinity | |
|---|---|
| Abbreviation: | TA |
| Observation type: | discrete |
| In-situ / Manipulation / Response variable: | In-situ observation |
| Measured or calculated: | Measured |
| Type of titration: | Potentiometric titration using an automated burette with 0.1N HCl in 0.7 M NaCl |
| Cell type (open or closed): | Open |
| Curve fitting method: | Calculated using the modified gran approach (Dickson et al., 2003) |
| TA blank correction: | none used |
| Uncertainty: | CRMs were used as primary alkalinity reference standards to back calculate titration acid concentration. This forced the absolute accuracy of samples to CRM standards. Instrument precision (sR, based on duplicate runs of each CRM) = 1.929 ueq/kg. Sampling precision (sR, based on duplicate samples collected in series from the same Niskin bottle) = 1.660 ueq/kg. |
| Method reference: | Dickson, A. G., J. D. Afghan, G. C. Anderson (2003). Reference materials for oceanic CO2 analysis: a method for the certification of total alkalinity. Marine Chemistry 80: 185-197. Cooley, S. R., and P. L. Yager (in press 2006). Physical and biological contributions to the western tropical North Atlantic Ocean carbon sink formed by the Amazon River Plume. J. Geophys. Res. Oceans. |
| CTDTMP | |
|---|---|
| Abbreviation: | CTDTMP |
| Unit: | DEG_C |
| Controlled vocabulary name: | WATER TEMPERATURE |
| In-situ / Manipulation / Response variable: | in-situ |
| SALNTY | |
|---|---|
| Abbreviation: | SALNTY |
| Controlled vocabulary name: | SALINITY |
| In-situ / Manipulation / Response variable: | in-situ |
| TCARBN | |
|---|---|
| Abbreviation: | TCARBN |
| Unit: | UMOL/KG |
| Controlled vocabulary name: | DISSOLVED INORGANIC CARBON (DIC) |
| In-situ / Manipulation / Response variable: | in-situ |
| ALKALI | |
|---|---|
| Abbreviation: | ALKALI |
| Unit: | UMOL/KG |
| Controlled vocabulary name: | total alkalinity |
| In-situ / Manipulation / Response variable: | in-situ |
| PH | |
|---|---|
| Abbreviation: | PH |
| Unit: | SWS@25C |
| Controlled vocabulary name: | pH |
| In-situ / Manipulation / Response variable: | in-situ |
SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)
SUBMISSION DATE: 2013-10-02
