INVESTIGATORS:
Douglas W. R. Wallace
- Dalhousie University; Institute of Oceanography
Kenneth M. Johnson
- Brookhaven National Laboratory (BNL)
PACKAGE DESCRIPTION: This dataset includes chemical, discrete sample, physical and profile data collected from METEOR in the South Atlantic Ocean from 1991-02-10 to 1991-03-23 and retrieved during cruise WOCE_A09. These data include ALKALINITY, CHLOROFLUOROCARBON-11 (CFC-11), CHLOROFLUOROCARBON-113 (CFC-113), CHLOROFLUOROCARBON-12 (CFC-12), Carbon tetrachloride (CCL4), DELTA CARBON-14, DELTA HELIUM-3, DISSOLVED INORGANIC CARBON, DISSOLVED OXYGEN, HELIUM, HYDROSTATIC PRESSURE, NEON, NITRATE, NITRITE, PHOSPHATE, Partial pressure (or fugacity) of carbon dioxide, Potential temperature (theta), SALINITY, SILICATE, Tritium (Hydrogen isotope) and WATER TEMPERATURE. The instruments used to collect these data include CTD and bottle. These data were collected by Douglas Wallace of Universitat Kiel; Institut Fur Meereskunde; Forschungsbereich Marine Biogeochemie and Kenneth Johnson [affiliation unknown] as part of the WOCE_A09 data set.
The World Ocean Circulation Experiment (WOCE) was a major component of the World Climate Research Program with the overall goal of better understanding the ocean's role in climate and climatic changes resulting from both natural and anthropogenic causes. The CO2 survey took advantage of the sampling opportunities provided by the WOCE Hydrographic Program (WHP) cruises during this period between 1990 and 1998. The final collection covers approximately 23,000 stations from 94 WOCE cruises.
CITE AS: Johnson, Kenneth M.; Wallace, Douglas W. R.; Wilke, Richard J.; Goyet, Catherine (2013). Partial pressure (or fugacity) of carbon dioxide, dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the METEOR in the South Atlantic Ocean from 1991-02-10 to 1991-03-23 (NCEI Accession 0115022). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.ndp051. Accessed [date].
DATA PACKAGES RELATED TO THIS ONE:
none;
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0115022
NCEI DOI: https://doi.org/10.3334/cdiac/otg.ndp051
EXPOCODE: 06MT15_3;
06MT19910210;
CRUISE ID: WOCE_A09;
SECTION/LEG: WOCE_A09;
TYPES OF STUDY: Discrete measurement;Profile;TEMPORAL COVERAGE:
START DATE: 1991-02-10
END DATE: 1991-03-23
SPATIAL COVERAGE:
WEST: -37.8183
EAST: 10.8067
GEOGRAPHIC NAMES: Atlantic Ocean;
PLATFORMS: R/V Meteor (ID: 06MT);
RESEARCH PROJECT(S):
none;
VARIABLES / PARAMETERS:
| Dissolved Inorganic Carbon |
|---|
| Abbreviation: |
DIC |
| Observation type: |
discrete |
| In-situ / Manipulation / Response variable: |
In-situ observation |
| Measured or calculated: |
Calculated |
| Replicate information: |
Replicate samples from ten Niskin bottles at four stations were also collected for later shore- based reference analyses of TCO2 by vacuum extraction and manometry by Charles D. Keeling, SIO. The results (Table 2 in the report), extracted from Guenther et al. (1994), were obtained very early in the program for comparing shipboard analyses by coulometry with shore-based analyses of duplicate samples, and many mistakes and false starts were noted. |
| CRM batch number: |
No.2 1978.8 μmol/kg |
| Total alkalinity |
|---|
| Abbreviation: |
TA |
| Observation type: |
discrete |
| In-situ / Manipulation / Response variable: |
In-situ observation |
| Measured or calculated: |
Measured |
| Type of titration: |
potentiometric titration |
| Cell type (open or closed): |
Closed |
| Curve fitting method: |
a method derived from one first described by Dyrssen (1965) and later modified by Bradshaw et al. (1981) was used. |
| Uncertainty: |
The precision of the measurements was estimated to be better than 0.1%. The samples were likely exposed to relatively high temperatures during shipment from Brazil to Woods Hole. Some sample bottles were also broken during shipment. Overall precision of the data set was therefore slightly degraded from that expected from measurement error alone. The pooled standard deviation for ten replicate samples was ~0.12%. |
| Method reference: |
Dyrssen D. 1965. A gran titration of sea water on board SAGITTA. Acta Chemica Scand. 19:1265. and Bradshaw A. L., P. G. Brewer, D. K. Shafer, and R. T. Williams. 1981. Measurements of total carbon dioxide and alkalinity by potentiometric titration in the GEOSECS program. Earth Planet. Sci. Lett., 55:99-115. |
| pCO2 (fCO2) discrete |
|---|
| Abbreviation: |
fCO2 |
| Observation type: |
discrete |
| In-situ / Manipulation / Response variable: |
In-situ observation |
| Measured or calculated: |
Measured |
| Seawater volume: |
60-mL |
| Headspace volume: |
5-mL |
| Temperature of measurement: |
20 degree C |
| Detailed sampling and analyzing information: |
pCO2 was measured using an experimental analytical system employing a batch-equilibration, static headspace analysis technique, with detection by gas chromatography and a flame ionization detector. and Briefly, the technique used was based on the static headspace methane method of Johnson et al. (1990). |
| Uncertainty: |
Precision varied throughout the cruise, depending primarily on the status of the catalyst, that had to be reconditioned periodically. Precision on multiple (>3) replicates varied from 0.4 to ~6% and averaged 2%. Accuracy was judged in three ways. First, throughout the cruise the mole fraction of CO2 in air was measured; air was collected in syringes at the bow of the ship during steaming between stations. |
| Method reference: |
Neill, C., D. W. R. Wallace, and K. M. Johnson. 1995. Small volume, batch equilibration measurement of pCO2 in discrete water samples. Deep-Sea Res. (submitted). and Johnson, K. M., J. E. Hughes, P. L. Donaghay, and J. McN. Sieburth. 1990. Bottle-calibration static head space method for the determination of methane dissolved in seawater. Anal. Chem. 62:2408-12. |
| CTDTMP |
|---|
| Abbreviation: |
CTDTMP |
| Unit: |
DEG_C |
| Controlled vocabulary name: |
WATER TEMPERATURE |
| In-situ / Manipulation / Response variable: |
in-situ |
| CTDSAL |
|---|
| Abbreviation: |
CTDSAL |
| Controlled vocabulary name: |
SALINITY |
| In-situ / Manipulation / Response variable: |
in-situ |
| SALNTY |
|---|
| Abbreviation: |
SALNTY |
| Controlled vocabulary name: |
SALINITY |
| In-situ / Manipulation / Response variable: |
in-situ |
| CTDOXY |
|---|
| Abbreviation: |
CTDOXY |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
DISSOLVED OXYGEN |
| In-situ / Manipulation / Response variable: |
in-situ |
| OXYGEN |
|---|
| Abbreviation: |
OXYGEN |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
DISSOLVED OXYGEN |
| In-situ / Manipulation / Response variable: |
in-situ |
| SILCAT |
|---|
| Abbreviation: |
SILCAT |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
silicate |
| In-situ / Manipulation / Response variable: |
in-situ |
| NITRAT |
|---|
| Abbreviation: |
NITRAT |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
NITRATE |
| In-situ / Manipulation / Response variable: |
in-situ |
| NITRIT |
|---|
| Abbreviation: |
NITRIT |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
NITRITE |
| In-situ / Manipulation / Response variable: |
in-situ |
| PHSPHT |
|---|
| Abbreviation: |
PHSPHT |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
phosphate |
| In-situ / Manipulation / Response variable: |
in-situ |
| CFC-11 |
|---|
| Abbreviation: |
CFC-11 |
| Unit: |
PMOL/KG |
| Controlled vocabulary name: |
CHLOROFLUOROCARBON-11 (CFC-11) |
| In-situ / Manipulation / Response variable: |
in-situ |
| CFC-12 |
|---|
| Abbreviation: |
CFC-12 |
| Unit: |
PMOL/KG |
| Controlled vocabulary name: |
CHLOROFLUOROCARBON-12 (CFC-12) |
| In-situ / Manipulation / Response variable: |
in-situ |
| CFC113 |
|---|
| Abbreviation: |
CFC113 |
| Unit: |
PMOL/KG |
| Controlled vocabulary name: |
CHLOROFLUOROCARBON-113 (CFC-113) |
| In-situ / Manipulation / Response variable: |
in-situ |
| CCL4 |
|---|
| Abbreviation: |
CCL4 |
| Unit: |
PMOL/KG |
| Controlled vocabulary name: |
Carbon tetrachloride (CCL4) |
| In-situ / Manipulation / Response variable: |
in-situ |
| TRITUM |
|---|
| Abbreviation: |
TRITUM |
| Unit: |
TU |
| Controlled vocabulary name: |
Tritium (Hydrogen isotope) |
| In-situ / Manipulation / Response variable: |
in-situ |
| HELIUM |
|---|
| Abbreviation: |
HELIUM |
| Unit: |
NMOL/KG |
| Controlled vocabulary name: |
HELIUM |
| In-situ / Manipulation / Response variable: |
in-situ |
| DELHE3 |
|---|
| Abbreviation: |
DELHE3 |
| Unit: |
PERCNT |
| Controlled vocabulary name: |
DELTA HELIUM-3 |
| In-situ / Manipulation / Response variable: |
in-situ |
| DELC14 |
|---|
| Abbreviation: |
DELC14 |
| Unit: |
/MILLE |
| Controlled vocabulary name: |
DELTA CARBON-14 |
| In-situ / Manipulation / Response variable: |
in-situ |
| NEON |
|---|
| Abbreviation: |
NEON |
| Unit: |
NMOL/KG |
| Controlled vocabulary name: |
NEON |
| 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 |
| PCO2 |
|---|
| Abbreviation: |
PCO2 |
| Unit: |
UATM |
| Controlled vocabulary name: |
partial pressure of carbon dioxide - water |
| In-situ / Manipulation / Response variable: |
in-situ |
PUBLICATIONS DESCRIBING THIS DATASET: none;
ADDITIONAL INFORMATION: none;
FUNDING AGENCY:
SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)
SUBMISSION DATE: 2013-12-12
