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pH, alkalinity, temperature, salinity and other variables collected from profile observations using Alkalinity titrator, CTD and other instruments from the HESPERIDES in the North Atlantic Ocean and Strait of Gibraltar from 2008-10-06 to 2008-10-12 (NCEI Accession 0112927)

INVESTIGATORS:
Emma Huertas - CSIC
Aída F. Ríos - Institute of Marine Research Vigo (IIM)

PACKAGE DESCRIPTION: This dataset includes chemical, discrete sample, physical and time series profile data collected from HESPERIDES in the North Atlantic Ocean and Strait of Gibraltar from 2008-10-06 to 2008-10-12. These data include ALKALINITY, DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, Potential temperature (theta), SALINITY, SILICATE, WATER TEMPERATURE and pH. The instruments used to collect these data include Alkalinity titrator, CTD, Spectrophotometer for pH measurement and bottle. These data were collected by Aida F. Ríos of Instituto de Investigaciones Marinas; Departamento de Oceanograffa and Emma Huertas of Marine Sciences Institute, Andalucia as part of the GIFT_29HE20081006 data set. CDIAC assigned the following cruise ID(s) to this data set: GIFT_29HE20081006 and P3A2. The Global CO2 Time-series and Moorings Project involves international groups from 18 countries who have mounted sensors on moored buoys to provide high resolution time-series measurements of atmospheric boundary layer and surface ocean CO2 partial pressure (pCO2). The CO2 Time-series and Moorings Project is coordinated by UNESCO International Ocean Carbon Coordination Project (IOCCP).

CITE AS: Ríos, Aída F.; Huertas, Emma (2013). pH, alkalinity, temperature, salinity and other variables collected from profile observations using Alkalinity titrator, CTD and other instruments from the HESPERIDES in the North Atlantic Ocean and Strait of Gibraltar from 2008-10-06 to 2008-10-12 (NCEI Accession 0112927). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.gift_29he20081006. Accessed [date].


DATA PACKAGES RELATED TO THIS ONE:
none;
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0112927
NCEI DOI: https://doi.org/10.3334/cdiac/otg.gift_29he20081006
EXPOCODE: 29HE20081006;
CRUISE ID: GIFT_29HE20081006; P3A2;
SECTION/LEG: GIFT;

TYPES OF STUDY:
Discrete measurement;Profile;

TEMPORAL COVERAGE:
START DATE: 2008-10-06
END DATE: 2008-10-12

SPATIAL COVERAGE:
NORTH: 37.1198
WEST: -8.1183
EAST: -5.3712
SOUTH: 35.8575

GEOGRAPHIC NAMES:
Atlantic Ocean;Strait of Gibraltar;

PLATFORMS:
RV Hesperides (ID: 29HE);

RESEARCH PROJECT(S):
none;

VARIABLES / PARAMETERS:

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: Double single point (4.45;4.41) Open flask
TA blank correction: none (HCl is made with MilliQ water)
Uncertainty: Accuracy of the AT determination was calculated from regular measurementes of CRM resulting in ± 2 μmol kg−1.
Method reference: Mintrop et al. (1999) Ciencias Marinas 26, 23-37.
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: 25C
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: PRECISION: 0.001 / ACCURACY: 0.004
CDTTMP
Abbreviation: CDTTMP
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
CTD_OXY
Abbreviation: CTD_OXY
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
ALKALI
Abbreviation: ALKALI
Unit: UMOL/KG
Controlled vocabulary name: total alkalinity
In-situ / Manipulation / Response variable: in-situ
PH_TOT
Abbreviation: PH_TOT
Controlled vocabulary name: pH
In-situ / Manipulation / Response variable: in-situ
PH_TMP
Abbreviation: PH_TMP
Controlled vocabulary name: pH
In-situ / Manipulation / Response variable: in-situ
PUBLICATIONS DESCRIBING THIS DATASET:
Flecha et al. (2012). Anthropogenic carbon inventory in the Gulf of Cadiz. J Mar Sys 92:67-75.
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:

SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)

SUBMISSION DATE: 2013-09-13