PH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from PROFESSOR SIEDLECKI in the Adriatic Sea, Aegean Sea and others from 1988-11-17 to 1988-11-26 (NCEI Accession 0144306)
PACKAGE DESCRIPTION: This dataset includes discrete sample and profile data collected from PROFESSOR SIEDLECKI in the Adriatic Sea, Aegean Sea, Mediterranean Sea, Mediterranean Sea - Eastern Basin and Tyrrhenian Sea from 1988-11-17 to 1988-11-26. These data include DISSOLVED OXYGEN, NITRATE, Potential temperature (theta), SALINITY, TOTAL ALKALINITY (TA), WATER TEMPERATURE, pH and silicate. The instruments used to collect these data include Alkalinity titrator, CTD, bottle and pH sensors. These data were collected by Aida F. Ríos of Instituto de Investigaciones Marinas de Vigo as part of the Biomass-IV and Biomass-IV Expedition ANA Cruise data set. CDIAC associated the following cruise ID(s) with this data set: 67SL19881117 and Biomass-IV Expedition ANA Cruise
CITE AS: Ríos, Aída F. (2016). PH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from PROFESSOR SIEDLECKI in the Adriatic Sea, Aegean Sea and others from 1988-11-17 to 1988-11-26 (NCEI Accession 0144306). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.ana_1998. 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: | automatic |
Uncertainty: | The precision was 2 μmol/kg-1 (0.1%) for alkalinity and 0.005 for pH. In order to correct the drift and bias during the cruise due to slight changes in the reference electrodes, routine and daily measurements of both variables for big container (25l.) were made. |
Method reference: | Takahashi, T., Olafsson, J., Goddard, J.G., Chipman, D.W. and Sutherland, S.C., 1993. Seasonal variation of CO2 and nutrients in the High-Latitude Surface Oceans: A comparative Study. Global Biogeochemical Cycles, 7(4), 843-878. Mehrbach, C., Culberson, C.H., Hawley, J.E. and Pytkowicz, R.M., 1973. Measurements of the apparent dissociation constants of carbonic in seawater at atmospheric pressure. Limnol. Oceanogr., 18: 897-907. Millero, F.J., 1995. Thermodynamics of the carbon dioxide system in the oceans. Geochim. et Cosmochim. Acta, 59 (4): 661-677. Millero, F.J., Byrne, R.H., Wanninkhof, R., Freely, R., Clayton, T., Murphy, P. and Lamb, M.F., 1994. The internal consistency of CO2 measurements in the equatorial Pacific. Mar. Chem., 44: 269-280. Ríos, A.F. and Rosón, G., 1996. Surface pCO2. In: Le Groupe CITHER 2 (Editors), Campagne CITHER-2. Recueil de données. Volume 3: Traceurs Géochimiques. Brest, 967 pp. Roy, R.N., Roy, L.N., Vogel, K.M., Porter-Moore, C., Pearson, T., Good, C.E., Millero, F.J. and Campbell, D.M., 1993. The dissociation constants of carbonic acid in seawater at salinities 5 to 45 and temperatures 0 to 45°C. Mar. Chem., 44: 249-267. Lee, K. and Millero, F.J., 1995. Thermodynamics studies of carbonate system in seawater. Deep-Sea Res., 42 (11/12): 2035-2061. Pérez, F.F. and Fraga, F., 1987a. The pH measurements in seawater on NBS scale. Mar. Chem., 21: 315-327. Pérez, F.F. and Fraga, F., 1987b. A precise and rapid analytical procedure for alkalinity determination. Mar. Chem., 21: 169-182. Weiss, R.F., 1974. Carbon dioxide in water and seawater: the solubility of a non-ideal gas. Mar. Chem., 2: 203-215. |
pH | |
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Abbreviation: | pH |
Observation type: | discrete |
In-situ / Manipulation / Response variable: | In-situ observation |
Measured or calculated: | Measured |
Detailed sampling and analyzing information: | A Ross Orion 81-04 electrode calibrated with 7.413 NBS buffer, was used to determine pH. The temperature was also measured by means of a Pt-100 probe. pH values were normalised to 15°C to avoid the temperature effect over pH (Pérez and Fraga, 1987a). Automatic titration was used to measure alkalinity to final pH 4.44 with HCl (Pérez and Fraga, 1987b). |
Uncertainty: | The precision was 2 μmol/kg-1 (0.1%) for alkalinity and 0.005 for pH. In order to correct the drift and bias during the cruise due to slight changes in the reference electrodes, routine and daily measurements of both variables for big container (25l.) were made. |
SALNIY | |
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Abbreviation: | SALNIY |
Controlled vocabulary name: | SALINITY |
In-situ / Manipulation / Response variable: | in-situ |
CTDTMP | |
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Abbreviation: | CTDTMP |
Unit: | DEG_C |
Controlled vocabulary name: | WATER TEMPERATURE |
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 |
NITRAT | |
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Abbreviation: | NITRAT |
Unit: | UMOL/KG |
Controlled vocabulary name: | NITRATE |
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 |
PH | |
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Abbreviation: | PH |
Controlled vocabulary name: | pH |
In-situ / Manipulation / Response variable: | in-situ |
TALK | |
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Abbreviation: | TALK |
Unit: | UMOL/KG |
Controlled vocabulary name: | total alkalinity |
In-situ / Manipulation / Response variable: | in-situ |
SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)
SUBMISSION DATE: 2016-02-26