Dissolved inorganic carbon, alkalinity, temperature, salinity and DISSOLVED OXYGEN collected from profile and discrete sample observations using Alkalinity titrator, CTD and other instruments from the Pacific Celebes in the Alboran Sea, Arabian Sea and others from 2007-06-11 to 2012-03-18 (NCEI Accession 0081040)
PACKAGE DESCRIPTION: This dataset includes chemical, discrete sample, physical and underway - surface data collected from Pacific Celebes in the Alboran Sea, Arabian Sea, Arafura Sea, Banda Sea, Bass Strait, Bay of Bengal, Bay of Fundy, Bismarck Sea, Caribbean Sea, Ceram Sea or Seram Sea, Coral Sea, Flores Sea, Gulf of Aden, Gulf of Mexico, Indian Ocean, Ionian Sea, Java Sea, Laccadive Sea, Ligurian Sea, Malacca Straits, Mediterranean Sea - Eastern Basin, Mediterranean Sea - Western Basin, North Atlantic Ocean, North Pacific Ocean, Olympic Coast National Marine Sanctuary, Red Sea, Solomon Sea, South Atlantic Ocean, South China Sea (Nan Hai), South Pacific Ocean, Tasman Sea, Timor Sea and Tyrrhenian Sea from 2007-06-11 to 2012-03-18 and retrieved during cruise NOC_CNCo_Pacific_Celebes_2007-2010. These data include ALKALINITY, DISSOLVED INORGANIC CARBON, DISSOLVED OXYGEN, SALINITY and WATER TEMPERATURE. The instruments used to collect these data include Alkalinity titrator, CTD, Coulometer for DIC measurement and bottle. These data were collected by David Hydes and Zongpei Jiang of National Oceanography Centre, Southampton as part of the VOS_Pacific_Celebes_2007_2012 data set.
CITE AS: Hydes, David; Jiang, Zong-Pei; Hartman, Mark C.; Campbell, Jon; Hartman, Susan E.; Pagnani, Maureen; Kelly-Gerreyn, Boris A. (2011). Dissolved inorganic carbon, alkalinity, temperature, salinity and DISSOLVED OXYGEN collected from profile and discrete sample observations using Alkalinity titrator, CTD and other instruments from the Pacific Celebes in the Alboran Sea, Arabian Sea and others from 2007-06-11 to 2012-03-18 (NCEI Accession 0081040). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.vos_pc_2007-2012. Accessed [date].
none;
Discrete measurement;Profile;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
VARIABLES / PARAMETERS:
| Dissolved Inorganic Carbon | |
|---|---|
| Abbreviation: | DIC |
| Observation type: | discrete |
| In-situ / Manipulation / Response variable: | In-situ observation |
| Measured or calculated: | Calculated |
| Replicate information: | Repeated measurements on the same batch of seawater (n>=3) in the lab gave consistent results (precision for the whole dataset estimated as 2.0±0.7 μmol kg- 1). But the reproducibility of the measurements of duplicate samples (n=10, root mean square deviation is 3.92 μmol kg-1) is not as good as the lab result. This may mainly be due to the fact that these duplicate samplings were taken when the ship's speed was ~13.5 knot. |
| Standardization description: | In order to standardize the results, Certified Reference Materials (CRM) from A.G. Dickson, Scripps Institution of Oceanography were analysed as standards to calibrate the instrument at the beginning and end of each day of analysis. A daily correction factor was applied to all measured values according to Millero et al. (1998). |
| CRM batch number: | 90 91 93 97 99 105 109 |
| Total alkalinity | |
|---|---|
| Abbreviation: | TA |
| Observation type: | discrete |
| In-situ / Manipulation / Response variable: | In-situ observation |
| Measured or calculated: | Measured |
| Type of titration: | Titration with HCl (~0.10 mol/L) uses a closed cell procedure with an open cell, with a pH half cell electrode (glass bodied Orion 8101SC, Ross, USA) and an Ag/AgCl reference electrode (model 6.0729.100, Metrohm, Switzerland). |
| Cell type (open or closed): | open cell |
| Curve fitting method: | Non-linear curve fitting (least-squares) approach (Dickson et al., 2007) |
| Uncertainty: | Repeated measurements on the same batch of seawater (n>=3) were undertaken every day prior to sample analysis in order to assess the precision of the method. The precision was estimated for the whole dataset to be 2.0±0.7 μmol kg-1 for DIC and 1.2±0.5 μmol kg-1 for TA. The accuracy of the measurement is assured by the standardization using the CRM from A.G. Dickson, Scripps Institution of Oceanography on daily basis. |
| Method reference: | Dickson, A. G., C. L. Sabine, and J. R. Christian. 2007. Guide to best practices for ocean CO2 measurements. PICES Special Publication 3. 191 pp. Dumousseaud, C., E. P. Achterberg, T. Tyrrell, A. Charalampopoulou, U. Schuster, M. Hartman, and D. J. Hydes. 2010. Contrasting effects of temperature and winter mixing on the seasonal and inter-annual variability of the carbonate system in the Northeast Atlantic Ocean. Biogeosciences 7: 1481-1492. Millero, F. J., Dickson, A. G., Eischeid, G., Goyet, C., Guenther, P., Johnson, K. M., Key, R. M., Lee, K., Purkenson, D., Sabine, C. L., Schottle, R. G., Wallace, D. W. R., Lewis, E., and Winn, C. D.: Assessment of the quality of the shipboard measurements of total alkalinity on the WOCE Hydrographic Program Indian Ocean CO2 survey cruises 1994-1996, Mar. Chem., 63, 9-20, 1998 |
| CTDTMP | |
|---|---|
| Abbreviation: | CTDTMP |
| Unit: | DEG_C |
| Controlled vocabulary name: | WATER TEMPERATURE |
| In-situ / Manipulation / Response variable: | in-situ |
| SALNTY | |
|---|---|
| Abbreviation: | SALNTY |
| Controlled vocabulary name: | SALINITY |
| 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 |
| 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 |
SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)
SUBMISSION DATE: 2011-11-11
REVISION DATE: 2013-12-18
PREVIOUS VERSIONS: Version 1.1Version 2.2
