INVESTIGATORS:
Aída F. Ríos
- Institute of Marine Research Vigo (IIM)
Harry L. Bryden
- Woods Hole Oceanographic Institution (WHOI)
Marta Álvarez 
- Spanish Institute of Oceanography (IEO)
PACKAGE DESCRIPTION: This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on sea water scale, temperature, salinity, dissolved oxygen, nutrients, chlorofluorocarbons (CFC-11, CFC-12, CFC113), carbon tetrachloride (CCL4), tritium, and helium obtained during the R/V Charles Darwin cruise CD139, CLIVAR_I05_2002 (EXPOCODE 74AB20020301) in the Indian Ocean from 2002-03-01 to 2002-04-15. These data were collected by M. Alvarez of Commonwealth Scientific and Industrial Research Organization, Aida F. Ríos of Instituto de Investigaciones Marinas; Departamento de Oceanograffa and H. Bryden [affiliation unknown] as part of the CLIVAR_I05_2002 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: Álvarez, Marta; Bryden, Harry L. (2013). Dissolved inorganic carbon (DIC), total alkalinity, pH on sea water scale, temperature, salinity and other variables collected from discrete sample and profile observations during the R/V Charles Darwin cruise CD139, CLIVAR_I05_2002 (EXPOCODE 74AB20020301) in the Indian Ocean from 2002-03-01 to 2002-04-15 (NCEI Accession 0108226). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.clivar_i05_2002. Accessed [date].
DATA PACKAGES RELATED TO THIS ONE:
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0108226
NCEI DOI: https://doi.org/10.3334/cdiac/otg.clivar_i05_2002
EXPOCODE: 74AB20020301;
CRUISE ID: CD139;
CLIVAR_I05_2002;
SECTION/LEG: CLIVAR I05;
TYPES OF STUDY: Discrete measurement;Profile;TEMPORAL COVERAGE:
START DATE: 2002-03-01
END DATE: 2002-04-15
SPATIAL COVERAGE:
WEST: 30.3342
EAST: 115.399
GEOGRAPHIC NAMES: Indian Ocean;
PLATFORMS: R/V Charles Darwin (ID: 74AB);
RESEARCH PROJECT(S):
none;
VARIABLES / PARAMETERS:
| Dissolved Inorganic Carbon |
|---|
| Abbreviation: |
TCARBN |
| Unit: |
UMOL/KG |
| Observation type: |
discrete |
| In-situ / Manipulation / Response variable: |
In-situ observation |
| Measured or calculated: |
Measured |
| Detailed sampling and analyzing information: |
The samples for DIC were collected at crossover stations where previous cruises in the Indian Ocean had sampled. The samples were analysed at onshore laboratory by coulometric method. |
| CRM batch number: |
batch 55 |
| Total alkalinity |
|---|
| Abbreviation: |
ALKALI |
| Unit: |
UMOL/KG |
| Observation type: |
discrete |
| In-situ / Manipulation / Response variable: |
In-situ observation |
| Measured or calculated: |
Measured |
| Type of titration: |
potentiometric |
| Curve fitting method: |
Total alkalinity was measured using an automatic potentiometric titrator Titrino Metrohm, with a Metrohm 6.0233.100 combination glass electrode and a Pt-100 probe to check the temperature. |
| Uncertainty: |
standard deviation lower than 1 μmol/kg |
| pH |
|---|
| Abbreviation: |
PH_SWS |
| pH scale: |
Sea Water 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: |
pH was measured spectrophotometrically following techniques described by Clayton and Byrne (1993). |
| Uncertainty: |
The mean value for the set of CRM measurements was 7.909± 0.003. |
| 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 |
| 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 |
| PH_TMP |
|---|
| Abbreviation: |
PH_TMP |
| Unit: |
DEG_C |
| Controlled vocabulary name: |
pH |
| 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 |
| TRITER |
|---|
| Abbreviation: |
TRITER |
| Unit: |
TU |
| In-situ / Manipulation / Response variable: |
in-situ |
| HELIUM |
|---|
| Abbreviation: |
HELIUM |
| Unit: |
NMOL/KG |
| Controlled vocabulary name: |
HELIUM |
| In-situ / Manipulation / Response variable: |
in-situ |
| HELIER |
|---|
| Abbreviation: |
HELIER |
| Unit: |
NMOL/KG |
| In-situ / Manipulation / Response variable: |
in-situ |
PUBLICATIONS DESCRIBING THIS DATASET: Alvarez, M., Corrections on the CD139 data base, Unpublished report, 11pp., 2007
Álvarez, M., Lo Monaco, C., Tanhua, T., Yool, A., Oschlies, A., Bullister, J. L., Goyet, C., Metzl, N., Touratier, F., McDonagh, E., and Bryden, H. L.: Estimating the storage of anthropogenic carbon in the subtropical Indian Ocean: a comparison of five different approaches, Biogeosciences, 6, 681-703, https://doi.org/10.5194/bg-6-681-2009, 2009
Clayton and Byrne, Spectrophotometric seawater pH measurements: total hydrogen ion concentration scale concentration scale calibration of m-cresol purple and at-sea results. Deep-sea Research I, Vol. 40, 10, 2115-2129, 1993.
McDonagh, E. L., H. L. Bryden, B. A. King and R. J. Sanders The circulation of the Indian Ocean at 32deg.S, Prog. Oceanogr., 79, 20-36, 2008.
ADDITIONAL INFORMATION: none;
FUNDING AGENCY:
SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)
SUBMISSION DATE: 2013-06-10
