INVESTIGATORS:
Richard A. Feely
- NOAA Pacific Marine Environmental Laboratory (PMEL)
Dennis A. Hansell
- Rosenstiel School of Marine and Atmospheric Science (RSMAS)
Rik Wanninkhof
- NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML)
Andrew G. Dickson
- Scripps Institution of Oceanography (SIO)
PACKAGE DESCRIPTION: This dataset includes discrete sample and profile data collected from ATLANTIS in the North Atlantic Ocean from 2012-04-19 to 2012-05-15. These data include AIR-SEA DIFFERENCE - PARTIAL PRESSURE (OR FUGACITY) OF CARBON DIOXIDE, BAROMETRIC PRESSURE, CHLOROFLUOROCARBON-11 (CFC-11), CHLOROFLUOROCARBON-113 (CFC-113), CHLOROFLUOROCARBON-12 (CFC-12), Carbon tetrachloride (CCL4), DELTA CARBON-13, DELTA CARBON-14, DELTA HELIUM-3, DISSOLVED INORGANIC CARBON (DIC), DISSOLVED ORGANIC CARBON, DISSOLVED OXYGEN, HELIUM, HYDROSTATIC PRESSURE, NEON, NITRATE, NITRITE, Partial pressure (or fugacity) of carbon dioxide - atmosphere, Partial pressure (or fugacity) of carbon dioxide - water, Potential temperature (theta), SALINITY, SEA SURFACE TEMPERATURE, SULFUR HEXAFLUORIDE (SF6), TOTAL ALKALINITY (TA), Total Dissolved Nitrogen (TDN), Tritium (Hydrogen isotope), WATER TEMPERATURE, pH, phosphate and silicate. The instruments used to collect these data include Alkalinity titrator, CTD, Coulometer for DIC measurement, bottle and spectrophotometer.
These data were collected by Dennis Hansell of Rosenstiel School of Marine and Atmospheric Science, Rik. Wanninkhof of NOAA Atlantic Oceanographic and Meteorological Laboratory, Richard A. Feely of US DOC; NOAA; OAR; Pacific Marine Environmental Laboratory and Andrew Dickson of University of California - San Diego; Scripps Institution of Oceanography as part of the CLIVAR_A20_2012 data set. CDIAC associated the following cruise ID(s) with this data set: CLIVAR_A20_2012
The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.
CITE AS: Wanninkhof, Rik; Feely, Richard A.; Dickson, Andrew G.; Hansell, Dennis A.; Key, Robert M.; Swift, James H.; Smethie, William M., Jr.; Fine, Rana A.; Jenkins, William J.; McNichol, Ann; McCartney, Michael S.; Druffel, Ellen R. M. (2013). Partial pressure (or fugacity) of carbon dioxide, dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from ATLANTIS in the North Atlantic Ocean from 2012-04-19 to 2012-05-15 (NCEI Accession 0108160). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.clivar_a20_2012. Accessed [date].
DATA PACKAGES RELATED TO THIS ONE:
none;
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0108160
NCEI DOI: https://doi.org/10.3334/cdiac/otg.clivar_a20_2012
EXPOCODE: 33AT20120419;
CRUISE ID: CLIVAR_A20_2012;
SECTION/LEG: CLIVAR_A20_2012;
TYPES OF STUDY: Discrete measurement;Profile;TEMPORAL COVERAGE:
START DATE: 2012-04-19
END DATE: 2012-05-15
SPATIAL COVERAGE:
WEST: -69.306
EAST: -50.731
GEOGRAPHIC NAMES: Atlantic Ocean;
PLATFORMS: R/V Atlantis (ID: 33AT);
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 |
Detailed sampling and analyzing information: |
Coulometric analysis: PMEL-1 and PMEL-2 SOMMA systems |
Standardization description: |
Secondary standards were run throughout the cruise (at least one per station) on each analytical system. These standards are Certified Reference Materials (CRMs), consisting of poisoned, filtered, and UV irradiated seawater supplied by Dr. A. Dickson of Scripps Institution of Oceanography (SIO). |
CRM batch number: |
Batch 117 = 2009.99 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): |
open |
Curve fitting method: |
Total alkalinity measurements were made using an open-cell, two-stage, potentiometric titration procedure similar to that used to certify reference materials for total alkalinity (see Dickson et al., 2003), except that samples were not weighed into the titration vessel but instead 99.9 mL was dispensed from a Dosimat using a 50 mL burette. |
Method reference: |
Dickson, Andrew G., Chris Sabine and James R. Christian, editors, "Guide to Best Practices for Ocean CO2 Measurements", Pices Special Publication 3, IOCCP Report No. 8, October 2007, SOP 3b, "Determination of total alkalinity in sea water using an open-cell titration" |
pH |
Abbreviation: |
pH |
pH scale: |
Total Scale |
Observation type: |
discrete |
In-situ / Manipulation / Response variable: |
In-situ observation |
Measured or calculated: |
Measured |
Temperature of pH measurement: |
25 |
Detailed sampling and analyzing information: |
Agilent 8453 spectrophotometer |
Uncertainty: |
The precision of the data can be accessed from measurements of duplicate analyses, certified reference material (CRM) Batch 117 (provided by Dr. Andrew Dickson, UCSD), and TRIS buffer Batch 10 (provided by Dr. Andrew Dickson, UCSD). CRMs were measured at least once a shift, and bottles of TRIS buffer were measured periodically throughout the cruise. The precision obtained from 182 duplicate analyses was found to be +/-0.0005. |
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 |
SF6 |
Abbreviation: |
SF6 |
Unit: |
FMOL/KG |
Controlled vocabulary name: |
Sulfur Hexaflouride (SF6) |
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 |
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_TOT |
Abbreviation: |
PH_TOT |
Unit: |
@25C |
Controlled vocabulary name: |
pH |
In-situ / Manipulation / Response variable: |
in-situ |
PH_TMP |
Abbreviation: |
PH_TMP |
Unit: |
DEG_C |
Controlled vocabulary name: |
pH |
In-situ / Manipulation / Response variable: |
in-situ |
DOC |
Abbreviation: |
DOC |
Unit: |
UMOL/KG |
Controlled vocabulary name: |
DISSOLVED ORGANIC CARBON |
In-situ / Manipulation / Response variable: |
in-situ |
TDN |
Abbreviation: |
TDN |
Unit: |
UMOL/KG |
Controlled vocabulary name: |
Total Dissolved Nitrogen (TDN) |
In-situ / Manipulation / Response variable: |
in-situ |
PUBLICATIONS DESCRIBING THIS DATASET: none;
ADDITIONAL INFORMATION: none;
FUNDING AGENCY: NSF, NOAA
PROJECT TITLE:
PROJECT ID:
SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)
SUBMISSION DATE: 2013-06-10
REVISION DATE: 2016-02-23
PREVIOUS VERSIONS: Version 1.1