Total alkalinity, pH on the total scale, water temperature, salinity and other variables collected from discrete sample and profile observations during the R/V Sarmiento de Gamboa CLIVAR Repeat Section cruise A05_2011 (EXPOCODE 29AH20110128) in the North Atlantic Ocean from 2011-01-28 to 2011-03-14 (NCEI Accession 0144248)
PACKAGE DESCRIPTION: This dataset includes discrete sample and profile data collected during the R/V Sarmiento de Gamboa CLIVAR Repeat Section A05_2011 cruise 24N_Malaspina_2011 (EXPOCODE 29AH20110128) in the North Atlantic Ocean from 2011-01-28 to 2011-03-14. This dataset is U.S. State Department MSR U2011-006 as part of the World Data Service for Oceanography. These data include total alkalinity, (TA), pH on the total scale, water temperature, salinity, dissolved oxygen and nutrients. The instruments used to collect these data include Alkalinity titrator, CTD, Niskin bottles and spectrophotometer. These data were collected by Fiz Pérez and Aída F. Ríos of Instituto de Investigaciones Marinas de Vigo and Alonso Hernandez-Guerra of Universidad de Las Palmas de Gran Canaria as part of the CLIVAR_A05_29AH20110128 data set. 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: Hernández-Guerra, Alonso; Guallart, Elisa F.; Padín, Xose A.; Vázquez-Rodríguez, Marcos (2016). Total alkalinity, pH on the total scale, water temperature, salinity and other variables collected from discrete sample and profile observations during the R/V Sarmiento de Gamboa CLIVAR Repeat Section cruise A05_2011 (EXPOCODE 29AH20110128) in the North Atlantic Ocean from 2011-01-28 to 2011-03-14 (NCEI Accession 0144248). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.clivar_a05_29ah20110128. Accessed [date].
none;
Discrete measurement;Profile;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
VARIABLES / PARAMETERS:
Total alkalinity | |
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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 cell |
Curve fitting method: | Double single point (4.45;4.41) Open flask. |
TA blank correction: | none (HCl is made with MilliQ water) |
Uncertainty: | The STD of all the TALK determinations of 41 CRM samples was 0.81 µmolkg-1. |
Method reference: | Pérez, F.F. and F. Fraga. (1987). A precise and rapid analytical procedure for alkalinity determination. Mar. Chem., 21, 169-182 |
pH | |
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Abbreviation: | pH |
pH scale: | SWS scale @25deg.C |
Observation type: | discrete |
In-situ / Manipulation / Response variable: | In-situ observation |
Measured or calculated: | Measured |
Temperature of pH measurement: | 25 °C |
Detailed sampling and analyzing information: | Spectrophotometrically, this method consists on adding a dye solution to the seawater sample, so that the ratio between two absorbances at two different wavelengths is proportional to the sample pH. |
Uncertainty: | Uncertainty of +/- 0.0006 (n=22) |
CTDTMP | |
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Abbreviation: | CTDTMP |
Unit: | DEG_C |
Controlled vocabulary name: | WATER TEMPERATURE |
In-situ / Manipulation / Response variable: | in-situ |
CTDSAL | |
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Abbreviation: | CTDSAL |
Controlled vocabulary name: | SALINITY |
In-situ / Manipulation / Response variable: | in-situ |
CTDOXY | |
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Abbreviation: | CTDOXY |
Unit: | UMOL/KG |
Controlled vocabulary name: | DISSOLVED OXYGEN |
In-situ / Manipulation / Response variable: | in-situ |
OXYGEN | |
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Abbreviation: | OXYGEN |
Unit: | UMOL/KG |
Controlled vocabulary name: | DISSOLVED OXYGEN |
In-situ / Manipulation / Response variable: | in-situ |
SILCAT | |
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Abbreviation: | SILCAT |
Unit: | UMOL/KG |
Controlled vocabulary name: | silicate |
In-situ / Manipulation / Response variable: | in-situ |
NITRAT | |
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Abbreviation: | NITRAT |
Unit: | UMOL/KG |
Controlled vocabulary name: | NITRATE |
In-situ / Manipulation / Response variable: | in-situ |
PHSPHT | |
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Abbreviation: | PHSPHT |
Unit: | UMOL/KG |
Controlled vocabulary name: | phosphate |
In-situ / Manipulation / Response variable: | in-situ |
ALKALI | |
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Abbreviation: | ALKALI |
Unit: | UMOL/KG |
Controlled vocabulary name: | total alkalinity |
In-situ / Manipulation / Response variable: | in-situ |
PH_SWS | |
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Abbreviation: | PH_SWS |
Unit: | @25C |
Controlled vocabulary name: | pH |
In-situ / Manipulation / Response variable: | in-situ |
PH_TMP | |
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Abbreviation: | PH_TMP |
Unit: | DEG_C |
Controlled vocabulary name: | pH |
In-situ / Manipulation / Response variable: | in-situ |
THETA | |
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Abbreviation: | THETA |
Unit: | DEG_C |
Controlled vocabulary name: | Potential temperature (theta) |
In-situ / Manipulation / Response variable: | in-situ |
SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)
SUBMISSION DATE: 2016-02-23
REVISION DATE: 2021-03-26
PREVIOUS VERSIONS: Version 1.1